4 # Copyright: 08/04/2012: v1.0.2 Glyn Astill <glyn@8kb.co.uk>
5 # Requires: Perl 5.10.1+, Data::UUID, File::Slurp
6 # PostgreSQL 9.0+ Slony-I 1.2+ / 2.0+
8 # This script is a command-line utility to manage switchover and failover
9 # of replication sets in Slony-I clusters.
11 # This script is free software: you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation, either version 3 of the License, or
14 # (at your option) any later version.
16 # This script is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this script. If not, see <http://www.gnu.org/licenses/>.
27 use Getopt::Long qw/GetOptions/;
31 use sigtrap 'handler' => \&sigExit, 'HUP', 'INT','ABRT','QUIT','TERM';
32 use Time::HiRes qw/usleep gettimeofday/;
33 use POSIX qw/strftime/;
34 use Config qw/%Config/;
36 use constant false => 0;
37 use constant true => 1;
39 my $g_script_version = '1.0.2';
41 my $g_pidfile = '/var/run/slony_failover.pid';
42 my $g_pid_written = false;
44 my $g_prefix = '/tmp/slony_failovers';
45 my $g_separate_working = true;
46 my $g_log_prefix = '%t';
47 my $g_log_to_db = false;
54 my $g_use_try_blocks = false;
55 my $g_lockset_method = 'multiple';
56 my $g_logfile = 'failover.log';
58 my $g_silence_notice = false;
69 my $g_dbuser = 'slony';
71 my $g_available_node_count;
72 my $g_critical_node_count;
73 my $g_subs_follow_origin = false;
74 my $g_use_comment_aliases = false;
75 my @g_cluster; # Array refs of node info. In hindsight this should have been a hash, should be fairly simple to switch.
81 my $g_failover_method = 'old';
82 my $g_resubscribe_method = 'subscribe';
83 my $g_failover = false;
84 my $g_fail_subonly = false;
85 my $g_drop_failed = false;
86 my $g_autofailover = false;
87 my $g_autofailover_poll_interval = 500;
88 my $g_autofailover_retry = 2;
89 my $g_autofailover_retry_sleep = 1000;
90 my $g_autofailover_provs = false;
91 my $g_autofailover_config_any = true;
92 my $g_autofailover_perspective_sleep = 20000;
93 my $g_autofailover_majority_only = false;
94 my $g_autofailover_is_quorum = false;
102 'usage' => q{-h <host> -p <port> -db <database> -cl <cluster name> -u <username> -P <password> -f <config file> (Password option not recommended; use pgpass instead)},
103 'title' => q{Slony-I failover script version $1},
104 'cluster_fixed' => q{Aborting failover action: all origin nodes now responsive},
105 'cluster_failed' => q{Found $1 failed nodes, sleeping for $2ms before retry $3 of $4},
106 'load_cluster' => q{Getting a list of database nodes...},
107 'load_cluster_fail' => q{Unable to read cluster configuration $1},
108 'load_cluster_success' => q{Loaded Slony-I v$1 cluster "$2" with $3 nodes read from node at $4:$5/$6},
109 'lag_detail' => q{Current node lag information from configuration node:},
110 'script_settings' => q{Using $1 batches of lock set, $2 FAILOVER and $3},
111 'generated_script' => q{Generated script "$1"},
112 'autofailover_init' => q{Entering autofailover mode},
113 'autofailover_init_cnf' => q{Slony configuration will be read from $1 node},
114 'autofailover_init_pol' => q{Polling every $1ms},
115 'autofailover_init_ret' => q{Failed nodes will be retried $1 times with $2ms sleep},
116 'autofailover_init_set' => q{Failed forwarding providers $1 be failed over},
117 'autofailover_load_cluster' => q{$1 Slony-I v$2 cluster "$3" with $4 nodes},
118 'autofailover_proceed' => q{Proceeding with failover:},
119 'autofailover_detail' => q{Failed node: $1, Backup node: $2},
120 'autofailover_halt' => q{Unable to perform any failover for $1 failed nodes},
121 'autofailover_check_sub' => q{Checking subscriber node $1},
122 'autofailover_check_sub_fail' => q{Unable to check subscriber node $1},
123 'autofailover_promote_find' => q{Finding most up to date subscriber to all sets ($1) on unresponsive node $2},
124 'autofailover_promote_found' => q{Using previously found most up to date subscriber to all sets ($1) on unresponsive node $2},
125 'autofailover_promote_skip' => q{No failover required for unresponsive node $1 as it is neither the origin or an active forwarder of any sets},
126 'autofailover_promote_fail' => q{Could not find suitable backup node for promotion},
127 'autofailover_node_detail' => q{Node $1 is $2 subscribed to ($3) node $4 and provides sets $5 at $6 lag ($7 events)},
128 'autofailover_node_detail_subonly' => q{Node $1 is $2 subscribed to ($3) node $4 and is a subscriber only at $5 lag ($6 events)},
129 'autofailover_promote_best' => q{Best node for promotion is node $1 seq = $2 ($3 events)},
130 'autofailover_unresponsive' => q{Detected unresponsive provider node: $1},
131 'autofailover_unresponsive_subonly'=> q{Detected unresponsive subscriber only node: $1},
132 'autofailover_pspec_check_fail' => q{Failed to connect to node $1: $2},
133 'autofailover_pspec_check' => q{Getting objective judgement from other nodes, apparent unresponsive nodes are : $1 (Failed nodes = $2 of $3)},
134 'autofailover_pspec_check_sleep' => q{Sleeping for $1 ms},
135 'autofailover_pspec_check_data' => q{$1: Node $2 says lag from node $3 -> $4 is $5 seconds},
136 'autofailover_pspec_check_true' => q{All detected failed nodes confirmed as lagging by other nodes},
137 'autofailover_pspec_check_false' => q{Not all nodes confirmed as lagging},
138 'autofailover_pspec_check_unknown' => q{Unable to confirm lag status of all nodes},
139 'autofailover_split_check' => q{Surviving nodes ($1 of $2) are the majority},
140 'autofailover_split_check_fail' => q{Surviving nodes ($1) are not the majority},
141 'interactive_head_id' => q{ID},
142 'interactive_head_name' => q{Name},
143 'interactive_head_status' => q{Status},
144 'interactive_head_providers' => q{Provider IDs},
145 'interactive_head_config' => q{Configuration},
146 'interactive_detail_1' => q{Origin for sets: },
147 'interactive_detail_2' => q{Providing sets: },
148 'interactive_detail_3' => q{Subscriptions: },
149 'interactive_choose_node' => q{Please choose the node to move all sets $1:},
150 'interactive_confirm' => q{You chose to move sets $1 node $2 ($3). Is this correct [y/n]? },
151 'interactive_action' => q{Best course of action is most likely to do a "$1". Do you wish to continue [y/n]?},
152 'interactive_surrender' => q{Uable to determine best course of action},
153 'interactive_write_script' => q{Writing a script to $1 node $2 to $3},
154 'interactive_check_nodes' => q{Checking availability of database nodes...},
155 'interactive_continue' => q{Do you wish to continue [y/n]?},
156 'interactive_drop_nodes' => q{Do you want to also drop the failed nodes from the slony configuration [y/n]?},
157 'interactive_preserve' => q{Preserve subscription paths to follow the origin node (choose no if unsure) [y/n]?},
158 'interactive_aliases' => q{Generate aliases based on sl_node/set comments in parentheses (choose no if unsure) [y/n]?},
159 'interactive_summary' => q{Summary of nodes to be passed to failover:},
160 'interactive_node_info' => q{Node : $1 ($2) $3 (conninfo $4)},
161 'interactive_run_script' => q{Would you like to run this script now [y/n]?},
162 'interactive_running' => q{Running the script now. This may take some time; please be patient!},
163 'interactive_reason' => q{Please enter a brief reson for taking this action: },
164 'interactive_failover_detail_1' => q{Before you go any further please consider the impact of a full failover:},
165 'interactive_failover_detail_2' => q{The node you are failing over from will cease to participate in the cluster permanently until it is rebuild & subscribed},
166 'interactive_failover_detail_3' => q{If the outage is temporary (i.e. network/power/easily replaceable hardware related) consider waiting it out},
167 'interactive_failover_detail_4' => q{This type of failover is likely to be more a business decision than a technical one},
168 'info_all_nodes_available' => q{INFO: All nodes are available},
169 'info_req_nodes_available' => q{INFO: $1 of $2 nodes are available. No unavailable nodes are subscribed to the old origin},
170 'wrn_node_unavailable' => q{WARNING: Node $1 unavailable},
171 'wrn_req_unavailable' => q{WARNING: Old origin node ($1) is available, however $2 subscribers are unavailable},
172 'wrn_not_tested' => q{WARNING: Script not tested with Slony-I v$1},
173 'wrn_failover_issues' => q{WARNING: Slony-I v$1 may struggle to failover correctly with multiple failed nodes (affects v2.0-2.1)},
174 'note_autofail_fwd_only' => q{NOTICE: Slony versions prior to 2.2 cannot initiate failover from only failed forwarding providers},
175 'note_fail_sub_only' => q{NOTICE: Slony versions prior to 2.2 cannot failover subscriber only nodes, reverting to failover_offline_subscriber_only = false},
176 'note_multiple_try' => q{NOTICE: Cannot lock multiple sets within try blocks in version $1 dropping back to single sets},
177 'note_reshape_cluster' => q{NOTICE: Either drop the failed subscribers or bring them back up, then retry to MOVE SET},
178 'dbg_generic' => q{DEBUG: $1},
179 'dbg_cluster' => q{DEBUG: NodeID $1/ProvIDs $2/Conninfo $3/OrigSets $4/NodeName $5/ProvTree $6/Active $7/FwdSets $8/ActSubSets $9},
180 'dbg_resubscribe' => q{DEBUG: Checking possibility to resubscribe set $1 ($2) to node $3 ($4) which pulls $5 ($6) from $7 ($8)},
181 'dbg_failover_method' => q{DEBUG: Failover method is $1},
182 'dbg_cluster_load' => q{DEBUG: Loading cluster configuration from $1},
183 'dbg_cluster_good' => q{DEBUG: Cluster state good},
184 'dbg_autofailover_check' => q{DEBUG: Checking node $1 ($2) role is $3 (conninfo: $4)},
185 'dbg_autofailover_active_check' => q{DEBUG: Initiate active check of $1 node $2},
186 'dbg_slonik_script' => q{DEBUG: Running slonik script $1},
187 'err_generic' => q{ERROR: $1},
188 'err_no_database' => q{ERROR: Please specify a database name},
189 'err_no_cluster' => q{ERROR: Please specify a slony cluster name},
190 'err_no_host' => q{ERROR: Please specify a host},
191 'err_no_config' => q{ERROR: No valid config found},
192 'err_fail_config' => q{ERROR: Failed to load configuration},
193 'err_write_fail' => q{ERROR: Could not write to $1 "$2"},
194 'err_read_fail' => q{ERROR: Could not read from $1 "$2"},
195 'err_unlink_fail' => q{ERROR: Could not delete $1 "$2"},
196 'err_mkdir_fail' => q{ERROR: Unable to create $1 directory "$2"},
197 'err_execute_fail' => q{ERROR: Could not execute $1 "$2"},
198 'err_inactive' => q{ERROR: Node $1 is not active (state = $2)},
199 'err_cluster_empty' => q{ERROR: Loaded cluster contains no nodes},
200 'err_cluster_offline' => q{ERROR: Loaded cluster contains no reachable nodes},
201 'err_cluster_lone' => q{ERROR: Loaded cluster contains only 1 node},
202 'err_not_origin' => q{ERROR: Node $1 is not the origin of any sets},
203 'err_not_provider' => q{ERROR: Node $1 is not a provider of any sets},
204 'err_not_provider_sets' => q{ERROR: Node $1 does not provide the sets required: need ($2) but provides ($3)},
205 'err_no_configuration' => q{ERROR: Could not read configuration for node $1},
206 'err_must_enter_node_id' => q{ERROR: You must enter a node id},
207 'err_not_a_node_id' => q{ERROR: I have no knowledge of a node $1},
208 'err_same_node' => q{ERROR: Cant move from and to the same node},
209 'err_node_offline' => q{ERROR: $1 node ($2) is not available},
210 'err_incomplete_preamble' => q{ERROR: Incomplete preamble},
211 'err_running_slonik' => q{ERROR: Could not run slonik: $1},
212 'err_pgsql_connect' => q{ERROR: Cannot connect to postgres server},
213 'slonik_output' => q{SLONIK: $1},
214 'exit_noaction' => q{Exiting, no action has been taken},
215 'exit' => q{Exited by $1}
218 'usage' => q{-h <host> -p <port> -db <database> -cl <cluster name> -u <username> -P <password> -f <config file> (Option mot de passe pas recommandé; utiliser pgpass place)},
219 'title' => q{Slony-I failover (basculement) version de script $1},
220 'cluster_fixed' => q{Abandon de l'action de basculement: tous les noeuds d'origine maintenant sensible},
221 'cluster_failed' => q{Trouvé $1 échoué noeuds, couchage pour $2 ms avant réessayer $3 de $4},
222 'load_cluster' => q{Obtenir une liste de noeuds de base de donnees...},
223 'load_cluster_fail' => q{Impossible de lire la configuration du cluster $1},
224 'load_cluster_success' => q{Chargé Slony-I v$1 groupe "$2" avec $3 noeuds lire à partir du noeud à $4:$5/$6},
225 'lag_detail' => q{Current informations noeud de décalage à partir du noeud de configuration:},
226 'script_settings' => q{Utilisation de $1 lots de système de verrouillage, $2 FAILOVER et $3},
227 'generated_script' => q{Script généré "$1"},
228 'autofailover_init' => q{Entrer dans le mode de autofailover},
229 'autofailover_init_cnf' => q{Configuration Slony sera lu à partir de $1 noeud},
230 'autofailover_init_pol' => q{Vérifier toutes les $1ms},
231 'autofailover_init_ret' => q{Noeuds défaillants seront rejugés $1 fois avec $2 ms sommeil},
232 'autofailover_init_set' => q{Fournisseurs d'expédition échoué $1 être échoué sur},
233 'autofailover_load_cluster' => q{$1 Slony-I v$2 grappe "$3" avec $4 noeuds},
234 'autofailover_proceed' => q{De procéder à failover:},
235 'autofailover_detail' => q{Noeud défaillant: $1, noeud de sauvegarde: $2},
236 'autofailover_halt' => q{Noeuds Impossible d'effectuer une failover pour $1 échoué},
237 'autofailover_check_sub' => q{Vérification noeud abonné $1},
238 'autofailover_check_sub_fail' => q{Impossible de vérifier noeud abonné $1},
239 'autofailover_promote_find' => q{Trouver plus à jour abonné à tous les jeux ($1) sur le noeud ne répond pas $2},
240 'autofailover_promote_found' => q{Utilisation précédemment trouvé plus à jour abonné à tous les jeux ($1) sur le noeud ne répond pas $2},
241 'autofailover_promote_skip' => q{Pas de failover requis pour le noeud ne répond pas $1 car il n'est ni l'origine ou un transitaire active de tous les jeux},
242 'autofailover_promote_fail' => q{Impossible de trouver le noeud de sauvegarde approprié pour la promotion},
243 'autofailover_node_detail' => q{Noeud $1 est souscrit à $2 ($3) noeud $4 et fournit des ensembles de $5 à retard $6 ($7 événements)},
244 'autofailover_node_detail_subonly' => q{Noeud $1 est souscrit à $2 ($3) et le noeud $4 est un abonné à retard $5 ($6 événements)},
245 'autofailover_promote_best' => q{Meilleur noeud pour la promotion est noeud $1 suivants = $2 ($3 événements)},
246 'autofailover_unresponsive' => q{Noeud ne répond pas détecté: $1},
247 'autofailover_unresponsive_subonly'=> q{Abonné ne répond pas détecté seulement de noeud: $1},
248 'autofailover_pspec_check_fail' => q{Impossible de se connecter au noeud $1: $2},
249 'autofailover_pspec_check' => q{Obtenir un jugement objectif à partir d'autres noeuds, les noeuds qui ne répondent pas apparentes sont : $1 (Noeuds défaillants = $2 de $3)},
250 'autofailover_pspec_check_sleep' => q{Dormir pour $1 ms},
251 'autofailover_pspec_check_data' => q{$1: Noeud $2 dit décalage de $3 -> $4 noeud est $5 secondes},
252 'autofailover_pspec_check_true' => q{Tous les noeuds détectés pas confirmés comme à la traîne par d'autres noeuds},
253 'autofailover_pspec_check_false' => q{Pas tous les noeuds confirmé retard},
254 'autofailover_pspec_check_unknown' => q{Impossible de confirmer le statut de latence de tous les noeuds},
255 'autofailover_split_check' => q{Autres noeuds ($1 sur $2) sont la majorité},
256 'autofailover_split_check_fail' => q{Autres noeuds ($1) ne sont pas la majorité},
257 'interactive_head_name' => q{Nom},
258 'interactive_head_status' => q{Statut},
259 'interactive_head_providers' => q{Fournisseur IDs},
260 'interactive_detail_1' => q{Origine pour les jeux: },
261 'interactive_detail_2' => q{Fournir des ensembles: },
262 'interactive_detail_3' => q{Abonnements: },
263 'interactive_choose_node' => q{S'il vous plaît choisissez le noeud à déplacer tous les ensembles $1:},
264 'interactive_confirm' => q{Vous avez choisi de passer ensembles $1 noeud $2 ($3). Est-ce correct [o/n]? },
265 'interactive_drop_nodes' => q{Voulez-vous laisser tomber aussi les noeuds défaillants de la configuration de slony [o/n]?},
266 'interactive_action' => q{Meilleur plan d'action est le plus susceptible de faire une $1. Voulez-vous continuer [o/n]?},
267 'interactive_surrender' => q{Uable pour déterminer le meilleur plan d'action},
268 'interactive_write_script' => q{Rédaction d'un script à $1 $2 noeud à $3},
269 'interactive_check_nodes' => q{Vérification de la disponibilité des noeuds de base de donnees...},
270 'interactive_continue' => q{Voulez-vous continuer [o/n]?},
271 'interactive_preserve' => q{Préserver les chemins de souscription à suivre le noeud d'origine (ne pas choisir en cas de doute) [o/n]?},
272 'interactive_aliases' => q{Générer des alias sur la base de sl_node / set commentaires entre parenthèses (ne pas choisir en cas de doute) [o/n]?},
273 'interactive_summary' => q{Résumé des noeuds à passer à failover:},
274 'interactive_node_info' => q{Noeud : $1 ($2) $3 (conninfo $4)},
275 'interactive_run_script' => q{Voulez-vous exécuter ce script maintenant [o/n]?},
276 'interactive_running' => q{L'exécution du script maintenant. Cela peut prendre un certain temps; s'il vous plaît être patient!},
277 'interactive_reason' => q{S'il vous plaît entrer une brève reson pour cette action: },
278 'interactive_failover_detail_1' => q{Avant d'aller plus loin s'il vous plaît envisager l'impact d'un failover (basculement) complet:},
279 'interactive_failover_detail_2' => q{Le noeud vous ne parviennent pas au-dessus de cesse de participer au groupe de façon permanente jusqu'à ce qu'il soit à reconstruire et souscrit},
280 'interactive_failover_detail_3' => q{Si la panne est temporaire (c.-à -réseau / alimentation / facilement remplaçable matériel connexe) envisager d'attendre dehors},
281 'interactive_failover_detail_4' => q{Ce type de failover est susceptible d'être plus une décision d'affaires que technique},
282 'info_all_nodes_available' => q{INFO: Tous les noeuds sont disponibles},
283 'info_req_nodes_available' => q{INFO: $1 of $2 noeuds sont disponibles. Pas de noeuds indisponibles sont souscrites à l'ancienne origine},
284 'wrn_node_unavailable' => q{ATTENTION: Noeud $1 disponible},
285 'wrn_req_unavailable' => q{ATTENTION: Noeud Old origine ($1) est disponible, mais $2 abonnés ne sont pas disponibles},
286 'wrn_not_tested' => q{ATTENTION: Script pas testé avec Slony-I v$1},
287 'wrn_failover_issues' => q{ATTENTION: Slony-I v$1 peut lutter pour basculer correctement avec plusieurs nœuds défaillants (affecte v2.0-2.1)},
288 'note_autofail_fwd_only' => q{AVIS: Versions antérieures à la 2.2 Slony ne peuvent pas initier le basculement de seulement échoué transmettre fournisseurs},
289 'note_fail_sub_only' => q{AVIS: Versions antérieures à la 2.2 Slony ne peuvent pas basculer abonnes seuls les noeuds, revenant à failover_offile_subscriber_only = false},
290 'note_multiple_try' => q{AVIS: Vous ne pouvez pas verrouiller plusieurs ensembles dans des blocs try dans la version $1 de retomber à des jeux simples},
291 'note_reshape_cluster' => q{AVIS: Vous devez supprimer les abonnés défaillants ou les ramener, puis réessayez à MOVE SET},
292 'err_generic' => q{ERREUR: $1},
293 'err_no_database' => q{ERREUR: S'il vous plaît spécifier un base de donnees nom},
294 'err_no_cluster' => q{ERREUR: S'il vous plaît indiquez un nom de cluster slony},
295 'err_no_host' => q{ERREUR: S'il vous plaît spécifier un hôte},
296 'err_no_config' => q{ERREUR: Aucune configuration valide n'a été trouvée},
297 'err_fail_config' => q{ERREUR: Impossible de charger la configuration},
298 'err_write_fail' => q{ERREUR: Impossible d'écrire dans $1 "$2"},
299 'err_read_fail' => q{ERREUR: Impossible de lire $1 "$2"},
300 'err_unlink_fail' => q{ERREUR: Impossible de supprimer $1 "$2"},
301 'err_mkdir_fail' => q{ERREUR: Impossible de créer $1 répertoire "$2"},
302 'err_execute_fail' => q{ERREUR: Impossible d'exécuter $1 "$2"},
303 'err_inactive' => q{ERREUR: Noeud $1 n'est pas active (état = $2)},
304 'err_cluster_empty' => q{ERREUR: Groupe chargé contient pas de noeuds},
305 'err_cluster_offline' => q{ERREUR: Groupe chargé contient pas de noeuds accessibles},
306 'err_cluster_lone' => q{ERRRUE: Groupe chargé ne contient que 1 noeud},
307 'err_not_origin' => q{ERREUR: Noeud $1 n'est pas à l'origine de tous les jeux},
308 'err_not_provider' => q{ERREUR: Noeud $1 n'est pas un fournisseur de tous les jeux},
309 'err_not_provider_sets' => q{ERREUR: Noeud $1 ne fournit pas les ensembles nécessaires: le besoin ($2), mais fournit ($3)},
310 'err_no_configuration' => q{ERREUR: Impossible de lire la configuration pour le noeud $1},
311 'err_must_enter_node_id' => q{ERREUR: Vous devez entrer un id de noeud},
312 'err_not_a_node_id' => q{ERREUR: Je n'ai pas connaissance d'un $1 de noeud},
313 'err_same_node' => q{ERREUR: Cant déplacer depuis et vers le même noeud},
314 'err_node_offline' => q{ERREUR: $1 noeud ($2) n'est pas disponible},
315 'err_incomplete_preamble' => q{ERREUR: Préambule incomplète},
316 'err_running_slonik' => q{ERREUR: Ne pouvait pas courir slonik: $1},
317 'err_pgsql_connect' => q{ERREUR: Impossible de se connecter au serveur postgres},
318 'slonik_output' => q{SLONIK: $1},
319 'exit_noaction' => q{Quitter, aucune action n'a été prise},
320 'exit' => q{Quitter par $1}
325 # Setup date variables
326 my ($g_year, $g_month, $g_day, $g_hour, $g_min, $g_sec) = (localtime(time))[5,4,3,2,1,0];
327 my $g_date = sprintf ("%02d:%02d:%02d on %02d/%02d/%04d", $g_hour, $g_min, $g_sec, $g_day, $g_month+1, $g_year+1900);
329 # Handle command line options
330 Getopt::Long::Configure('no_ignore_case');
332 die lookupMsg('usage') unless GetOptions(\%opt, 'host|H=s', 'port|p=i', 'dbname|db=s', 'clname|cl=s', 'dbuser|u=s', 'dbpass|P=s', 'cfgfile|f=s', 'infoprint|I', ) and keys %opt and ! @ARGV;
335 if (defined($opt{cfgfile})) {
336 unless (getConfig($opt{cfgfile})) {
337 println(lookupMsg('err_no_config'));
342 if (defined($opt{dbname})) {
343 $g_dbname = $opt{dbname};
345 if (defined($opt{clname})) {
346 $g_clname = $opt{clname};
348 if (defined($opt{host})) {
349 $g_dbhost = $opt{host};
351 if (defined($opt{port})) {
352 $g_dbport = $opt{port};
354 if (defined($opt{dbuser})) {
355 $g_dbuser = $opt{dbuser};
357 if (defined($opt{dbpass})) {
358 $g_dbpass = $opt{dbpass};
362 # Fill in any missing values with defaults or display message and die
363 if (!defined($g_dbname)) {
364 println(lookupMsg('err_no_database'));
365 die lookupMsg('usage');
367 if (!defined($g_clname)) {
368 println(lookupMsg('err_no_cluster'));
369 die lookupMsg('usage');
371 if (!defined($g_dbhost)) {
372 println(lookupMsg('err_no_host'));
373 die lookupMsg('usage');
377 # Build conninfo from supplied datbase name/host/port
378 $g_dbconninfo = "dbname=$g_dbname;host=$g_dbhost;port=$g_dbport";
380 if (!defined($opt{infoprint})) {
381 # Check prefix directory and create if not present
382 unless(-e $g_prefix or mkdir $g_prefix) {
383 println(lookupMsg('err_mkdir_fail', 'prefix', $g_prefix));
387 if ($g_separate_working) {
388 if ($g_prefix !~ m/\/$/) {
392 # Get a uuid for working directory
393 $g_prefix .= getUUID($g_date);
395 # Create a working directory and setup log file
396 unless(-e $g_prefix or mkdir $g_prefix) {
397 println(lookupMsg('err_mkdir_fail', 'work', $g_prefix));
402 # Set postgres path if provided
403 if (defined($g_slonikpath) && ($g_slonikpath ne "")) {
404 $ENV{PATH} .= ":$g_slonikpath";
407 # Check if autofailover is enabled, if so check configuration and enter autofailover mode
408 if (($g_autofailover) && !defined($opt{infoprint})) {
410 # Write out a PID file
411 if (writePID($g_prefix, $g_logfile, $g_log_prefix, $g_pidfile)) {
412 $g_pid_written = true;
415 cleanExit(1, "system");
418 # Go into endless loop for autofailover
419 autoFailover($g_dbconninfo, $g_clname, $g_dbuser, $g_dbpass, $g_prefix, $g_logfile, $g_log_prefix);
422 # Read slony configuration and output some basic information
425 println(lookupMsg('load_cluster', $g_prefix));
426 ($g_node_count, $g_version) = loadCluster($g_dbconninfo, $g_clname, $g_dbuser, $g_dbpass, $g_prefix, $g_logfile, $g_log_prefix);
429 println(lookupMsg('load_cluster_fail', 'from supplied configuration'));
430 cleanExit(2, "system");
433 if (defined($opt{infoprint})) {
434 println(lookupMsg('load_cluster_success', $g_version, $g_clname, $g_node_count, $g_dbhost, $g_dbport, $g_dbname) . ":");
435 chooseNode("info", undef, undef, undef, 0);
439 printlog($g_prefix,$g_logfile,$g_log_prefix,"*"x68 . "\n* ");
440 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('title', $g_script_version));
441 printlogln($g_prefix,$g_logfile,$g_log_prefix,"*"x68);
444 if ($g_node_count <= 0) {
445 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_cluster_empty'));
446 cleanExit(3, "system");
449 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('load_cluster_success', $g_version, $g_clname, $g_node_count, $g_dbhost, $g_dbport, $g_dbname));
450 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('script_settings', $g_lockset_method, $g_failover_method, uc($g_resubscribe_method)));
453 # Output lag information between each node and node configuration was read from
454 if (loadLag($g_dbconninfo, $g_clname, $g_dbuser, $g_dbpass, $g_prefix, $g_logfile, $g_log_prefix) > 0) {
455 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('lag_detail'));
457 printlogln($g_prefix,$g_logfile,$g_log_prefix,"\t$_");
459 printlog($g_prefix,$g_logfile,$g_log_prefix,"\n");
462 # Prompt user to choose nodes to move sets from / to
463 $g_node_from = chooseNode("from", $g_prefix, $g_logfile, $g_log_prefix, 0);
464 if ($g_node_from == 0) {
465 cleanExit(4, "user");
467 elsif ($g_node_from == -1) {
468 cleanExit(5, "system");
471 $g_node_to = chooseNode("to", $g_prefix, $g_logfile, $g_log_prefix, $g_node_from);
472 if ($g_node_to == 0) {
473 cleanExit(6, "user");
475 elsif ($g_node_to == -1) {
476 cleanExit(7, "system");
478 elsif ($g_node_from == $g_node_to) {
479 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_same_node'));
480 cleanExit(8, "system");
483 # Check nodes are available and decide on action to take
484 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_check_nodes'));
485 ($g_available_node_count, $g_critical_node_count) = checkNodes($g_clname, $g_dbuser, $g_dbpass, $g_node_from, $g_node_to, $g_prefix, $g_logfile, $g_log_prefix);
487 if ($g_available_node_count <= 0) {
488 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_cluster_offline'));
489 cleanExit(9, "system");
491 elsif ($g_critical_node_count == -1) {
492 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_node_offline', 'Target new origin', $g_node_to));
493 cleanExit(10, "system");
495 elsif ($g_critical_node_count == -2) {
496 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_node_offline', 'Old origin', $g_node_from));
497 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_action', 'FAILOVER'));
500 elsif ($g_critical_node_count == 0) {
501 if ($g_node_count == $g_available_node_count) {
502 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('info_all_nodes_available'));
505 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('info_req_nodes_available', $g_available_node_count, $g_node_count));
507 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_action', 'MOVE SET'));
509 elsif ($g_critical_node_count > 0) {
510 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('wrn_req_unavailable', $g_node_from, $g_critical_node_count));
511 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('note_reshape_cluster'));
512 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('exit_noaction'));
513 cleanExit(11, "user");
516 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_surrender'));
517 cleanExit(12, "system");
521 if ($g_input !~ /^[Y|O]$/i) {
522 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('exit_noaction'));
523 cleanExit(13, "user");
526 if (!$g_use_comment_aliases) {
527 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_aliases'));
530 if ($g_input =~ /^[Y|O]$/i) {
531 $g_use_comment_aliases = true;
536 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_summary'));
538 foreach (@g_failed) {
539 printlogln($g_prefix,$g_logfile,$g_log_prefix,"\t" . lookupMsg('interactive_node_info',$_->[0],($_->[4] // "unnamed"),(defined($_->[9]) ? "providing sets $_->[9]" : "sole subscriber"), $_->[2]));
542 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_failover_detail_1'));
543 printlogln($g_prefix,$g_logfile,$g_log_prefix,"\t" . lookupMsg('interactive_failover_detail_2'));
544 printlogln($g_prefix,$g_logfile,$g_log_prefix,"\t" . lookupMsg('interactive_failover_detail_3'));
545 printlogln($g_prefix,$g_logfile,$g_log_prefix,"\t" . lookupMsg('interactive_failover_detail_4'));
547 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_drop_nodes'));
549 if ($g_input ~~ /^[Y|O]$/i) {
550 $g_drop_failed = true;
553 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_reason'));
555 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_continue'));
558 if ($g_input !~ /^[Y|O]$/i) {
559 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('exit_noaction'));
560 cleanExit(14, "user");
563 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_write_script', 'failover from', $g_node_from, $g_node_to));
564 $g_script = writeFailover($g_prefix, $g_dbconninfo, $g_clname, $g_dbuser, $g_dbpass, $g_node_from, $g_node_to, $g_subs_follow_origin, $g_use_comment_aliases, $g_logfile, $g_log_prefix);
567 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_preserve'));
570 if ($g_input =~ /^[Y|O]$/i) {
571 $g_subs_follow_origin = true;
574 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_reason'));
577 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_write_script', 'move all sets provided by', $g_node_from, $g_node_to));
578 $g_script = writeMoveSet($g_prefix, $g_dbconninfo, $g_clname, $g_dbuser, $g_dbpass, $g_node_from, $g_node_to, $g_subs_follow_origin, $g_use_comment_aliases, $g_logfile, $g_log_prefix);
581 # Complete and run script if required
583 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('generated_script', $g_script));
584 printlog($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_run_script', $g_script));
587 if ($g_input =~ /^[Y|O]$/i) {
588 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('interactive_running'));
589 unless (runSlonik($g_script, $g_prefix, $g_logfile, $g_log_prefix)) {
590 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_execute_fail', 'slonik script', $g_script));
594 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('exit_noaction'));
598 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('err_read_fail', 'slonik script', $g_script));
599 cleanExit(15, "system");
602 cleanExit(0, "script completion");
604 ###########################################################################################################################################
607 my $exit_code = shift;
610 printlogln($g_prefix,$g_logfile,$g_log_prefix,lookupMsg('exit', $type));
614 logDB("dbname=$g_logdb_name;host=$g_logdb_host;port=$g_logdb_port", $g_logdb_user, $g_logdb_pass, $exit_code, $g_reason, $g_prefix, $g_logfile, $g_log_prefix, $g_clname, $g_script);
618 if ($g_pid_written) {
619 removePID($g_prefix, $g_logfile, $g_log_prefix, $g_pidfile);
626 cleanExit(100,'signal');
637 my $log_prefix = shift;
643 my $result_count = 0;
644 my $critical_count = 0;
650 undef @g_unresponsive;
653 foreach (@g_cluster) {
654 if ($_->[0] == $from) {
655 @origsets = split(',', $_->[3]);
660 foreach (@g_cluster) {
662 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_cluster', $_->[0],($_->[1] // "<NONE>"),$_->[2],($_->[3] // "<NONE>"),$_->[4],($_->[5] // "<NONE>") . "(" . ($_->[8] // "<NONE>") . ")",$_->[6],($_->[7] // "<NONE>"),($_->[9] // "<NONE>") . " (" . ($_->[10] // "<NONE>") . ")"));
665 $dsn = "DBI:Pg:$_->[2];";
667 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
668 $query = "SELECT count(*) FROM pg_namespace WHERE nspname = ?";
669 $sth = $dbh->prepare($query);
670 $sth->bind_param(1, "_" . $clname);
673 $result_count = $result_count+$sth->rows;
680 # Critical count will be -1 if the new origin is down, -2 if the old origin is down or positive if subscribers to sets on old origin are down.
681 printlogln($prefix,$logfile,$log_prefix,lookupMsg('wrn_node_unavailable', $_->[0]));
683 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
685 if ($_->[0] == $to) {
686 $critical_count = -1;
688 elsif ($_->[0] == $from) {
689 $critical_count = -2;
692 foreach my $subprov (split(';', $_->[5])) {
693 my ($node, $setlist) = (split('->', $subprov)) ;
695 $setlist =~ s/(\)|\(|s)//g;
696 @subsets = (split(',', $setlist));
698 if (($critical_count >= 0) && (checkSubscribesAnySets(\@origsets, \@subsets))) {
703 # Only push nodes with active subscribers to sets into failed list unless explicitly told to
704 if (($g_fail_subonly) || (defined($_->[9]))) {
705 push(@g_failed, \@$_);
706 $g_backups{$_->[0]} = $to;
708 push(@g_unresponsive, \@$_);
712 return ($result_count, $critical_count);
716 my $dbconninfo = shift;
722 my $log_prefix = shift;
733 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_cluster_load', $dbconninfo));
736 $dsn = "DBI:Pg:$dbconninfo;";
738 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
739 $qw_clname = $dbh->quote_identifier("_" . $clname);
741 $query = "SELECT $qw_clname.getModuleVersion()";
742 $sth = $dbh->prepare($query);
744 ($version) = $sth->fetchrow;
747 $query = "WITH z AS (
748 SELECT a.no_id, b.sub_provider AS no_prov,
749 COALESCE(c.pa_conninfo,(SELECT pa_conninfo FROM $qw_clname.sl_path WHERE pa_server = $qw_clname.getlocalnodeid(?) LIMIT 1)) AS no_conninfo,
750 array_to_string(array(SELECT set_id FROM $qw_clname.sl_set WHERE set_origin = a.no_id ORDER BY set_id),',') AS origin_sets,
751 string_agg(CASE WHEN b.sub_receiver = a.no_id AND b.sub_forward AND b.sub_active THEN b.sub_set::text END, ',' ORDER BY b.sub_set) AS prov_sets,
752 coalesce(trim(regexp_replace(substring(a.no_comment from E'\\\\((.+)\\\\)'), '[^0-9A-Za-z]','_','g')), 'node' || a.no_id) AS no_name,
753 'n' || b.sub_provider || '->(' || string_agg(CASE WHEN b.sub_receiver = a.no_id THEN 's' || b.sub_set END,',' ORDER BY b.sub_set,',') || ')' AS sub_tree,
754 coalesce(trim(regexp_replace(substring(d.no_comment from E'\\\\((.+)\\\\)'), '[^0-9A-Za-z]','_','g')), 'node' || b.sub_provider, '')
755 || '->(' || string_agg(CASE WHEN b.sub_receiver = a.no_id THEN coalesce(trim(regexp_replace(e.set_comment, '[^0-9A-Za-z]', '_', 'g')), 'set' || b.sub_set) END,',' ORDER BY b.sub_set) || ')' AS sub_tree_name,
756 CASE " . ((substr($version,0,3) >= 2.2) ? "WHEN a.no_failed THEN 'FAILED' " : "") . "WHEN a.no_active THEN 'ACTIVE' ELSE 'INACTIVE' END AS no_status,
757 array_to_string(array(SELECT DISTINCT sub_set::text FROM $qw_clname.sl_subscribe WHERE sub_provider = a.no_id AND sub_active ORDER BY sub_set),',') AS prov_sets_active,
758 string_agg(CASE WHEN b.sub_receiver = a.no_id THEN b.sub_set::text END,',' ORDER BY b.sub_set,',') AS sub_sets
759 FROM $qw_clname.sl_node a
760 LEFT OUTER JOIN $qw_clname.sl_subscribe b ON a.no_id = b.sub_receiver
761 LEFT OUTER JOIN $qw_clname.sl_path c ON c.pa_server = a.no_id AND c.pa_client = $qw_clname.getlocalnodeid(?)
762 LEFT OUTER JOIN $qw_clname.sl_node d ON b.sub_provider = d.no_id
763 LEFT OUTER JOIN $qw_clname.sl_set e ON b.sub_set = e.set_id
764 GROUP BY b.sub_provider, a.no_id, a.no_comment, c.pa_conninfo, d.no_comment, a.no_active
768 nullif(string_agg(no_prov::text, ',' ORDER BY no_prov),'') AS no_provs,
770 nullif(string_agg(origin_sets::text, ',' ORDER BY origin_sets),'') AS origin_sets,
772 nullif(string_agg(sub_tree, ';' ORDER BY sub_tree),'') AS no_sub_tree,
774 nullif(string_agg(prov_sets::text, ',' ORDER BY prov_sets),'') AS prov_sets,
775 nullif(string_agg(sub_tree_name, ';' ORDER BY sub_tree_name),'') AS no_sub_tree_name,
776 nullif(string_agg(prov_sets_active::text, ',' ORDER BY prov_sets_active),'') AS prov_sets_active,
777 nullif(string_agg(sub_sets::text, ',' ORDER BY sub_sets),'') AS no_subs
778 FROM z GROUP BY no_id, no_conninfo, no_name, no_status";
779 $sth = $dbh->prepare($query);
781 $sth->bind_param(1, "_" . $clname);
782 $sth->bind_param(2, "_" . $clname);
786 while (my @node = $sth->fetchrow) {
787 push(@g_cluster, \@node);
796 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
798 die lookupMsg('err_pgsql_connect');
801 #if (substr($version,0,1) < 2) {
802 # printlogln($prefix,$logfile,$log_prefix,lookupMsg('wrn_not_tested', $version));
804 if (($g_use_try_blocks) && ($g_lockset_method eq 'multiple') && (substr($version,0,3) <= 9.9)) {
805 # It's currently not possible to lock multiple sets at a time within a try block (v2.2.2), leave the logic in and set a high version number for now.
806 printlogln($prefix,$logfile,$log_prefix, lookupMsg('note_multiple_try', $version));
807 $g_lockset_method = 'single';
809 if (substr($version,0,3) >= 2.2) {
810 $g_failover_method = 'new';
811 $g_resubscribe_method = 'resubscribe';
814 unless ($g_silence_notice) {
815 if ((substr($version,0,3) >= 2.0) && (substr($version,0,3) < 2.2)) {
816 printlogln($prefix,$logfile,$log_prefix,lookupMsg('wrn_failover_issues', $version));
818 printlogln($prefix,$logfile,$log_prefix,lookupMsg('note_autofail_fwd_only'));
819 $g_silence_notice = true;
821 if ($g_fail_subonly) {
822 printlogln($prefix,$logfile,$log_prefix,lookupMsg('note_fail_sub_only'));
823 $g_fail_subonly = false;
829 return (scalar(@g_cluster), $version);
833 my $dbconninfo = shift;
835 my $nodenumber = shift;
840 my $log_prefix = shift;
850 $dsn = "DBI:Pg:$dbconninfo;";
852 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
853 $qw_clname = $dbh->quote_identifier("_" . $clname);
854 $query = "SELECT set_id, trim(regexp_replace(set_comment,'[^0-9,A-Z,a-z]','_','g')) FROM $qw_clname.sl_set WHERE set_origin = ? ORDER BY set_id;";
856 $sth = $dbh->prepare($query);
857 $sth->bind_param(1, $nodenumber);
861 while (my @set = $sth->fetchrow) {
862 push(@g_sets, \@set);
870 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
872 die lookupMsg('err_pgsql_connect');
875 return scalar(@g_sets);
879 my $dbconninfo = shift;
885 my $log_prefix = shift;
895 $dsn = "DBI:Pg:$dbconninfo;";
897 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
898 $qw_clname = $dbh->quote_identifier("_" . $clname);
899 $query = "SELECT a.st_origin || ' (' || coalesce(trim(regexp_replace(substring(b.no_comment from E'\\\\((.+)\\\\)'), '[^0-9A-Za-z]','_', 'g')), 'node' || b.no_id) || ')<->'
900 || a.st_received || ' (' || coalesce(trim(regexp_replace(substring(c.no_comment from E'\\\\((.+)\\\\)'), '[^0-9A-Za-z]','_', 'g')), 'node' || c.no_id) || ') Events: '
901 || a.st_lag_num_events || ' Time: ' || a.st_lag_time
902 FROM $qw_clname.sl_status a
903 INNER JOIN $qw_clname.sl_node b on a.st_origin = b.no_id
904 INNER JOIN $qw_clname.sl_node c on a.st_received = c.no_id";
906 $sth = $dbh->prepare($query);
909 while (my $lag = $sth->fetchrow) {
918 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
920 die lookupMsg('err_pgsql_connect');
923 return scalar(@g_lags);
930 my $log_prefix = shift;
931 my $last_choice = shift;
940 $line = sprintf "%-4s %-14s %-10s %-24s %-s\n", lookupMsg('interactive_head_id'), lookupMsg('interactive_head_name'), lookupMsg('interactive_head_status'), lookupMsg('interactive_head_providers'), lookupMsg('interactive_head_config');
941 printlog($prefix,$logfile,$log_prefix,"$line");
942 $line = sprintf "%-4s %-14s %-10s %-24s %-s\n", "="x(length(lookupMsg('interactive_head_id'))), "="x(length(lookupMsg('interactive_head_name'))), "="x(length(lookupMsg('interactive_head_status'))), "="x(length(lookupMsg('interactive_head_providers'))), "="x(length(lookupMsg('interactive_head_config')));
943 printlog($prefix,$logfile,$log_prefix,"$line");
945 foreach (@g_cluster) {
946 $line = sprintf "%-4s %-14s %-10s %-24s %-s\n", $_->[0], $_->[4], $_->[6], ($_->[1] // "<NONE>"), (lookupMsg('interactive_detail_1') . ($_->[3] // "<NONE>"));
947 printlog($prefix,$logfile,$log_prefix,"$line");
948 $line = sprintf "%-55s %-s\n", " ", (lookupMsg('interactive_detail_2') . ($_->[7] // "<NONE>"));
949 printlog($prefix,$logfile,$log_prefix,"$line");
950 $line = sprintf "%-55s %-s\n", " ", (lookupMsg('interactive_detail_3') . ($_->[5] // "<NONE>"));
951 printlogln($prefix,$logfile,$log_prefix,"$line");
952 $options{$_->[0]} = {name => $_->[4], sets => ($_->[3] // ""), status => $_->[6], provider => $_->[7]};
954 if ($type !~ m/info/i) {
955 printlog($prefix,$logfile,$log_prefix,lookupMsg('interactive_choose_node', $type));
959 if(exists($options{$choice})) {
960 if ($options{$choice}->{status} ne "ACTIVE") {
961 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_inactive', $choice, lc($options{$choice}->{status})));
964 elsif (($type =~ m/from/i) && (length(trim($options{$choice}->{sets})) <= 0)) {
965 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_not_origin', $choice));
968 elsif ($type =~ m/to/i) {
969 if (length(trim($options{$choice}->{provider})) <= 0) {
970 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_not_provider', $choice));
974 foreach my $old_origin (@g_cluster) {
975 if ($old_origin->[0] == $last_choice) {
976 @sets_from = split(',', $old_origin->[3]);
977 @sets_to = split(',', $options{$choice}->{provider});
978 if (checkProvidesAllSets(\@sets_from, \@sets_to)) {
982 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_not_provider_sets',$choice,$old_origin->[3],$options{$choice}->{providers}));
989 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_no_configuration', $last_choice));
995 printlog($prefix,$logfile,$log_prefix,lookupMsg('interactive_confirm',$type,$choice,$options{$choice}->{name}));
998 if ($ok !~ /^[Y|O]$/i) {
999 printlogln($prefix,$logfile,$log_prefix,lookupMsg('exit_noaction'));
1004 elsif (!length($choice)) {
1005 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_must_enter_node_id'));
1009 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_not_a_node_id', $choice));
1018 my $filename = shift;
1019 my $dbconninfo = shift;
1024 my $aliases = shift;
1026 my $logfile = shift;
1027 my $log_prefix = shift;
1028 my $comment_all_failed = shift;
1031 my $success = false;
1033 my ($year, $month, $day, $hour, $min, $sec) = (localtime(time))[5,4,3,2,1,0];
1034 my $date = sprintf ("%02d:%02d:%02d on %02d/%02d/%04d", $hour, $min, $sec, $day, $month+1, $year+1900);
1036 if (open(SLONFILE, ">", $filename)) {
1037 print SLONFILE ("# Script autogenerated on $date\n\n");
1038 print SLONFILE ("######\n# Preamble (cluster structure)\n######\n\n# Cluster name\n");
1040 print SLONFILE ("DEFINE slony_cluster_name $clname;\n");
1041 print SLONFILE ("CLUSTER NAME = \@slony_cluster_name;\n\n");
1044 print SLONFILE ("CLUSTER NAME = $clname;\n\n");
1046 foreach (@g_cluster) {
1048 if (($comment_all_failed) && (exists $g_backups{$_->[0]})) {
1049 $line_prefix = "# (Node $_->[0] unavailable) ";
1051 elsif (!$g_fail_subonly) {
1052 foreach my $unresponsive (@g_unresponsive) {
1053 if (($_->[0] == $unresponsive->[0]) && !defined($_->[9]) && ($g_failover_method eq 'new')) {
1054 $line_prefix = "# (Node $_->[0] unavailable subscriber only) ";
1058 print SLONFILE ("# Preamble for node $_->[0] named $_->[4]\n");
1060 print SLONFILE ($line_prefix . "DEFINE $_->[4] $_->[0];\n");
1061 print SLONFILE ($line_prefix . "DEFINE $_->[4]_conninfo '$_->[2]';\n");
1062 print SLONFILE ($line_prefix . "NODE \@$_->[4] ADMIN CONNINFO = \@$_->[4]_conninfo;\n\n");
1065 print SLONFILE ($line_prefix . "NODE $_->[0] ADMIN CONNINFO = '$_->[2]';\n\n");
1067 if (($aliases) && ($sets)) {
1068 $set_count = loadSets($dbconninfo, $clname, $_->[0], $dbuser, $dbpass, $prefix, $logfile, $log_prefix);
1069 if ($set_count > 0) {
1070 print SLONFILE ("# Sets provided (currently) by node $_->[0]\n");
1071 foreach my $set (@g_sets) {
1072 print SLONFILE ($line_prefix . "DEFINE $set->[1] $set->[0];\n");
1074 print SLONFILE ("\n");
1081 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_write_fail', "script", $filename));
1089 my $dbconninfo = shift;
1096 my $aliases = shift;
1097 my $logfile = shift;
1098 my $log_prefix = shift;
1103 my $try_prefix = "";
1104 my ($year, $month, $day, $hour, $min, $sec) = (localtime(time))[5,4,3,2,1,0];
1105 my $filetime = sprintf ("%02d_%02d_%04d_%02d:%02d:%02d", $day, $month+1, $year+1900, $hour, $min, $sec);
1106 my $filename = $prefix . "/" . $clname . "-move_sets_from_" . $from . "_to_" . $to . "_on_" . $filetime . ".scr";
1108 if ($g_use_try_blocks) {
1115 my ($node, $setlist);
1116 my ($node_name, $setlist_name);
1119 unless (writePreamble($filename, $dbconninfo, $clname, $dbuser, $dbpass, true, $aliases, $prefix, $logfile, $log_prefix, true)) {
1120 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_incomplete_preamble'));
1123 foreach (@g_cluster) {
1124 if ($_->[0] == $from) {
1125 $from_name = $_->[4];
1127 elsif ($_->[0] == $to) {
1132 if (open(SLONFILE, ">>", $filename)) {
1134 print SLONFILE ("######\n# Actions (changes to cluster structure)\n######\n");
1136 $set_count = loadSets($dbconninfo, $clname, $from, $dbuser, $dbpass, $prefix, $logfile, $log_prefix);
1137 if ($set_count > 0) {
1139 if ($g_lockset_method ne "single") {
1140 if ($g_use_try_blocks) {
1141 print SLONFILE ("TRY {\n");
1145 print SLONFILE ($try_prefix . "ECHO 'Locking set $_->[1] ($_->[0])';\n");
1146 print SLONFILE ($try_prefix . "LOCK SET ( ID = \@$_->[1], ORIGIN = \@$from_name);\n");
1149 print SLONFILE ($try_prefix . "ECHO 'Locking set $_->[0]';\n");
1150 print SLONFILE ($try_prefix . "LOCK SET ( ID = $_->[0], ORIGIN = $from);\n");
1154 print SLONFILE ("\n");
1157 print SLONFILE ($try_prefix . "ECHO 'Moving set $_->[1] ($_->[0])';\n");
1158 print SLONFILE ($try_prefix . "MOVE SET ( ID = \@$_->[1], OLD ORIGIN = \@$from_name, NEW ORIGIN = \@$to_name);\n");
1161 print SLONFILE ($try_prefix . "ECHO 'Moving set $_->[0]';\n");
1162 print SLONFILE ($try_prefix . "MOVE SET ( ID = $_->[0], OLD ORIGIN = $from, NEW ORIGIN = $to);\n");
1166 if ($g_use_try_blocks) {
1167 print SLONFILE ("}\nON ERROR {\n");
1170 print SLONFILE ($try_prefix . "ECHO 'Unlocking set $_->[1] ($_->[0])';\n");
1171 print SLONFILE ($try_prefix . "UNLOCK SET ( ID = \@$_->[1], ORIGIN = \@$from_name);\n");
1174 print SLONFILE ($try_prefix . "ECHO 'Unlocking set $_->[0]';\n");
1175 print SLONFILE ($try_prefix . "UNLOCK SET ( ID = $_->[0], ORIGIN = $from);\n");
1178 print SLONFILE ("\tEXIT 1;\n}\nON SUCCESS {\n");
1181 print SLONFILE ($try_prefix . "WAIT FOR EVENT (ORIGIN = \@$from_name, CONFIRMED = ALL, WAIT ON = \@$from_name, TIMEOUT = 0);\n");
1184 print SLONFILE ($try_prefix . "WAIT FOR EVENT (ORIGIN = $from, CONFIRMED = ALL, WAIT ON = $from, TIMEOUT = 0);\n");
1186 if ($g_use_try_blocks) {
1187 print SLONFILE ("}\n");
1191 if ($g_lockset_method eq "single") {
1193 print SLONFILE ("\nECHO 'Moving set $_->[1] ($_->[0])';\n");
1194 if ($g_use_try_blocks) {
1195 print SLONFILE ("TRY {\n");
1197 print SLONFILE ($try_prefix . "LOCK SET ( ID = \@$_->[1], ORIGIN = \@$from_name);\n");
1198 print SLONFILE ($try_prefix . "MOVE SET ( ID = \@$_->[1], OLD ORIGIN = \@$from_name, NEW ORIGIN = \@$to_name);\n");
1199 if ($g_use_try_blocks) {
1200 print SLONFILE ("}\nON ERROR {\n" . $try_prefix . "UNLOCK SET ( ID = \@$_->[1], ORIGIN = \@$from_name);\n" . $try_prefix . "EXIT 1;\n}\n");
1202 print SLONFILE ("WAIT FOR EVENT (ORIGIN = \@$from_name, CONFIRMED = ALL, WAIT ON = \@$from_name, TIMEOUT = 0);\n");
1205 print SLONFILE ("\nECHO 'Moving set $_->[0]';\n");
1206 if ($g_use_try_blocks) {
1207 print SLONFILE ("TRY {\n");
1209 print SLONFILE ($try_prefix . "LOCK SET ( ID = $_->[0], ORIGIN = $from);\n");
1210 print SLONFILE ($try_prefix . "MOVE SET ( ID = $_->[0], OLD ORIGIN = $from, NEW ORIGIN = $to);\n");
1211 if ($g_use_try_blocks) {
1212 print SLONFILE ("}\nON ERROR {\n" . $try_prefix . "UNLOCK SET ( ID = $_->[0], ORIGIN = $from);\n" . $try_prefix . "EXIT 1;\n}\n");
1214 print SLONFILE ("WAIT FOR EVENT (ORIGIN = $from, CONFIRMED = ALL, WAIT ON = $from, TIMEOUT = 0);\n");
1217 if (($subs) && ($g_resubscribe_method eq 'subscribe')) {
1219 foreach my $other_subs (@g_cluster) {
1220 if (($other_subs->[6] eq "ACTIVE") && ($other_subs->[0] != $from) && ($other_subs->[0] != $to)) {
1222 if (exists $g_backups{$other_subs->[0]}) {
1223 $line_prefix = "# (Node $other_subs->[0] unavailable) ";
1229 # mess here needs cleaning up
1230 @subprov_name = (split(';', $other_subs->[8]));
1232 foreach $subprov (split(';', $other_subs->[5])) {
1233 ($node, $setlist) = (split('->', $subprov)) ;
1234 ($node_name, $setlist_name) = (split('->', $subprov_name[$subprov_idx])) ;
1237 $setlist =~ s/(\)|\(|s)//g;
1238 @subsets = (split(',', $setlist)) ;
1241 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_resubscribe', $_->[1], $_->[0], $other_subs->[0], $other_subs->[4], $setlist, $setlist_name, $node, $node_name));
1244 if ($_->[0] ~~ @subsets) {
1245 if ($node == $from) {
1247 print SLONFILE ($line_prefix .
1248 "ECHO 'Issuing subscribe for set $_->[1] ($_->[0]) provider $to_name ($to) -> " .
1249 "receiver $other_subs->[4] ($other_subs->[0])';\n");
1250 print SLONFILE ($line_prefix .
1251 "SUBSCRIBE SET ( ID = \@$_->[1], PROVIDER = \@$to_name, " .
1252 "RECEIVER = \@$other_subs->[4], FORWARD = YES);\n");
1255 print SLONFILE ($line_prefix .
1256 "ECHO 'Issuing subscribe for set $_->[1] ($_->[0]) provider $to -> " .
1257 "receiver $other_subs->[0]';\n");
1258 print SLONFILE ($line_prefix . "SUBSCRIBE SET ( ID = $_->[0], PROVIDER = $to, " .
1259 "RECEIVER = $other_subs->[0], FORWARD = YES);\n");
1264 print SLONFILE ($line_prefix .
1265 "ECHO 'Issuing subscribe for set $_->[1] ($_->[0]) provider $node_name ($node) -> " .
1266 "receiver $other_subs->[4] ($other_subs->[0])';\n");
1267 print SLONFILE ($line_prefix . "SUBSCRIBE SET ( ID = \@$_->[1], PROVIDER = \@$node_name, " .
1268 "RECEIVER = \@$other_subs->[4], FORWARD = YES);\n");
1271 print SLONFILE ($line_prefix .
1272 "ECHO 'Issuing subscribe for set $_->[1] ($_->[0]) provider $node -> " .
1273 "receiver $other_subs->[0]';\n");
1274 print SLONFILE ($line_prefix . "SUBSCRIBE SET ( ID = $_->[0], PROVIDER = $node, " .
1275 "RECEIVER = $other_subs->[0], FORWARD = YES);\n");
1285 if (($subs) && ($g_resubscribe_method eq 'resubscribe')) {
1287 foreach my $other_subs (@g_cluster) {
1288 if (($other_subs->[6] eq "ACTIVE") && ($other_subs->[0] != $from) && ($other_subs->[0] != $to)) {
1289 if (exists $g_backups{$other_subs->[0]}) {
1290 $line_prefix = "# (Node $other_subs->[0] unavailable) ";
1296 @subprov_name = (split(';', $other_subs->[8]));
1298 foreach $subprov (split(';', $other_subs->[5])) {
1299 ($node, $setlist) = (split('->', $subprov)) ;
1300 ($node_name, $setlist_name) = (split('->', $subprov_name[$subprov_idx])) ;
1304 print SLONFILE ("\n");
1305 if ($node == $from) {
1307 print SLONFILE ($line_prefix .
1308 "ECHO 'Issuing resubscribe for provider $to_name ($to) -> receiver $other_subs->[4] ($other_subs->[0])';\n");
1309 print SLONFILE ($line_prefix .
1310 "RESUBSCRIBE NODE ( ORIGIN = \@$to_name, PROVIDER = \@$to_name, RECEIVER = \@$other_subs->[4]);\n");
1313 print SLONFILE ($line_prefix .
1314 "ECHO 'Issuing resubscribe for provider $to -> receiver $other_subs->[0]';\n");
1315 print SLONFILE ($line_prefix .
1316 "RESUBSCRIBE NODE ( ORIGIN = $to, PROVIDER = $to, RECEIVER = $other_subs->[0] );\n");
1321 print SLONFILE ($line_prefix .
1322 "ECHO 'Issuing resubscribe for provider $node_name ($node) -> receiver $other_subs->[4] ($other_subs->[0])';\n");
1323 print SLONFILE ($line_prefix .
1324 "RESUBSCRIBE NODE ( ORIGIN = \@$to_name, PROVIDER = \@$node_name, RECEIVER = \@$other_subs->[4]);\n");
1327 print SLONFILE ($line_prefix .
1328 "ECHO 'Issuing resubscribe for provider $node -> receiver $other_subs->[0]';\n");
1329 print SLONFILE ($line_prefix .
1330 "RESUBSCRIBE NODE ( ORIGIN = $to, PROVIDER = $node, RECEIVER = $other_subs->[0]);\n");
1341 print SLONFILE ("\nECHO 'All sets originating from $from_name (id $from) have been moved to $to_name (id $to), ensure you modify any existing slonik scripts to reflect the new origin';\n");
1344 print SLONFILE ("\nECHO 'All sets originating from node $from have been moved to node $to, ensure you modify the any existing slonik scripts to reflect the new origin';\n");
1349 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_write_fail', "script", $filename));
1356 my $dbconninfo = shift;
1363 my $aliases = shift;
1364 my $logfile = shift;
1365 my $log_prefix = shift;
1369 my ($year, $month, $day, $hour, $min, $sec) = (localtime(time))[5,4,3,2,1,0];
1370 my $filetime = sprintf ("%02d_%02d_%04d_%02d:%02d:%02d", $day, $month+1, $year+1900, $hour, $min, $sec);
1375 my ($node, $setlist);
1376 my ($node_name, $setlist_name);
1382 if (defined($from) && defined($to)) {
1383 $filename = $prefix . "/" . $clname . "-failover_from_" . $from . "_to_" . $to . "_on_" . $filetime . ".scr";
1386 $filename = $prefix . "/" . $clname . "-autofailover_on_" . $filetime . ".scr";
1389 if ($g_failover_method ne 'new') {
1390 # For pre 2.2 failover with multiple nodes, we attempt to resubscribe sets and drop other failed providers;
1391 # This will never work as well as 2.2+ failover behaviour (infact failover may not work as all in 2.0/2.1 with multiple failed nodes)
1392 # We also need to define the sets in the preamble for this.
1396 unless (writePreamble($filename, $dbconninfo, $clname, $dbuser, $dbpass, $sets, $aliases, $prefix, $logfile, $log_prefix, false)) {
1397 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_incomplete_preamble'));
1400 if (open(SLONFILE, ">>", $filename)) {
1402 print SLONFILE ("######\n# Actions (changes to cluster structure)\n######\n\n");
1404 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_failover_method',$g_failover_method));
1407 # If we are on pre 2.2 we need to drop failed subscriber nodes first regardless
1408 if ($g_failover_method ne 'new') {
1409 foreach (@g_failed) {
1410 if (!defined($_->[3])) {
1411 foreach my $backup (@g_cluster) {
1412 if ($backup->[0] == $g_backups{$_->[0]}) { # this backup node candidate is in the list of suitable nodes for {failed node}
1413 foreach my $subscriber (@g_cluster) {
1414 if (defined($subscriber->[1]) && $subscriber->[1] == $_->[0] && $subscriber->[0] != $backup->[0]) {
1415 # mess here needs cleaning up
1416 @subprov_name = (split(';', $subscriber->[8]));
1418 foreach my $subprov (split(';', $subscriber->[5])) {
1419 ($node, $setlist) = (split('->', $subprov)) ;
1420 ($node_name, $setlist_name) = (split('->', $subprov_name[$subprov_idx])) ;
1424 if ($node == $_->[0]) {
1426 print SLONFILE ("ECHO 'Resubscribing all sets on receiver $subscriber->[4] provided by other failed node $_->[4] to backup node $backup->[4]';\n");
1429 print SLONFILE ("ECHO 'Resubscribing all sets on receiver $subscriber->[0] provided by other failed node $_->[0] to backup node $backup->[0]';\n");
1431 $setlist =~ s/(\)|\(|s)//g;
1432 @subsets = (split(',', $setlist));
1433 $setlist_name =~ s/(\)|\()//g;
1434 @subsets_name = (split(',', $setlist_name));
1437 foreach my $subset (@subsets) {
1439 print SLONFILE ("SUBSCRIBE SET (ID = \@$subsets_name[$set_idx], PROVIDER = \@$backup->[4], RECEIVER = \@$subscriber->[4], FORWARD = YES);\n");
1440 print SLONFILE ("WAIT FOR EVENT (ORIGIN = \@$backup->[4], CONFIRMED = \@$subscriber->[4], WAIT ON = \@$backup->[4]);\n");
1443 print SLONFILE ("SUBSCRIBE SET (ID = $subset, PROVIDER = $backup->[0], RECEIVER = $subscriber->[0], FORWARD = YES);\n");
1444 print SLONFILE ("WAIT FOR EVENT (ORIGIN = $backup->[0], CONFIRMED = $subscriber->[0], WAIT ON = $backup->[0]);\n");
1448 print SLONFILE ("\n");
1453 print SLONFILE ("ECHO 'Dropping other failed node $_->[4] ($_->[0])';\n");
1454 print SLONFILE ("DROP NODE (ID = \@$_->[4], EVENT NODE = \@$backup->[4]);\n\n");
1457 print SLONFILE ("ECHO 'Dropping other failed node $_->[0]';\n");
1458 print SLONFILE ("DROP NODE (ID = $_->[0], EVENT NODE = $backup->[0]);\n\n");
1460 push(@dropped, $_->[0]);
1463 # The node is failed, but there are no downstream subscribers
1473 foreach (@g_failed) {
1474 if (($g_failover_method eq 'new') || defined($_->[3])) {
1475 foreach my $backup (@g_cluster) {
1476 if ($backup->[0] == $g_backups{$_->[0]}) {
1477 ## Here we have both details of the backup node and the failed node
1479 print SLONFILE ("ECHO 'Failing over slony cluster from $_->[4] (id $_->[0]) to $backup->[4] (id $backup->[0])';\n");
1482 print SLONFILE ("ECHO 'Failing over slony cluster from node $_->[0] to node $backup->[0]';\n");
1490 print SLONFILE ("FAILOVER (\n\t");
1492 foreach (@g_failed) {
1493 if (($g_failover_method eq 'new') || defined($_->[3])) {
1494 foreach my $backup (@g_cluster) {
1495 if ($backup->[0] == $g_backups{$_->[0]}) {
1496 ## Here we have both details of the backup node and the failed node
1497 if ($g_failover_method eq 'new') {
1498 if( $written != 0 ) {
1499 print SLONFILE (",\n\t");
1501 print SLONFILE ("NODE = (");
1504 if( $written != 0 ) {
1505 print SLONFILE ("\n);\nFAILOVER (\n\t");
1509 print SLONFILE ("ID = \@$_->[4], BACKUP NODE = \@$backup->[4]");
1512 print SLONFILE ("ID = $_->[0], BACKUP NODE = $backup->[0]");
1514 if ($g_failover_method eq 'new') {
1515 print SLONFILE (")");
1523 print SLONFILE ("\n);\n\n");
1525 if ($g_drop_failed) {
1526 if (($g_failover_method eq 'new') && (scalar(@g_failed) > 1)) {
1527 foreach (@g_failed) {
1529 print SLONFILE ("ECHO 'Dropping failed node $_->[4] ($_->[0])';\n");
1532 print SLONFILE ("ECHO 'Dropping failed node $_->[0]';\n");
1536 print SLONFILE ("DROP NODE (ID = '");
1540 foreach (@g_failed) {
1541 foreach my $backup (@g_cluster) {
1542 if ($backup->[0] == $g_backups{$_->[0]}) {
1543 if (!defined($event_node)) {
1545 $event_node = $backup->[4];
1548 $event_node = $backup->[0];
1551 if (($g_failover_method eq 'new') && (scalar(@g_failed) > 1)) {
1552 if( $written != 0 ) {
1553 print SLONFILE (",");
1555 ## Don't bother trying to define array values
1557 # print SLONFILE "\@$_->[4]";
1560 print SLONFILE $_->[0];
1564 elsif (($g_failover_method eq 'new') || defined($_->[3]) || !($_->[0] ~~ @dropped)) {
1566 print SLONFILE ("ECHO 'Dropping failed node $_->[4] ($_->[0])';\n");
1567 print SLONFILE ("DROP NODE (ID = \@$_->[4], EVENT NODE = \@$backup->[4]);\n\n");
1570 print SLONFILE ("ECHO 'Dropping failed node $_->[0]';\n");
1571 print SLONFILE ("DROP NODE (ID = $_->[0], EVENT NODE = $backup->[0]);\n\n");
1578 if (($g_failover_method eq 'new') && (scalar(@g_failed) > 1)) {
1580 print SLONFILE ("', EVENT NODE = \@$event_node);\n");
1583 print SLONFILE ("', EVENT NODE = $event_node);\n");
1590 printlog($prefix,$logfile,$log_prefix,lookupMsg('err_write_fail', "script", $filename));
1597 my $name = shift || '?';
1601 if (exists $message{$g_lang}{$name}) {
1602 $text = $message{$g_lang}{$name};
1604 elsif (exists $message{'en'}{$name}) {
1605 $text = $message{'en'}{$name};
1608 $line_call = (caller)[2];
1609 $text = qq{Failed to lookup text "$name" at line $line_call};
1615 $val = '?' if ! defined $val;
1616 last unless $text =~ s/\$$x/$val/g;
1625 $string =~ s/^('|")+//;
1626 $string =~ s/('|")+$//;
1632 $string =~ s/^\s+//;
1633 $string =~ s/\s+$//;
1638 print ((@_ ? join($/, @_) : $_), $/);
1643 my $logfile_name = shift;
1644 my $log_prefix = shift;
1645 my $message = shift;
1651 if (defined($logfile_name)) {
1653 # Do we have to do this all the time? Perhaps could check parameters first
1654 if ($logfile_name =~ /^\//i) {
1655 $logfile = strftime($logfile_name, localtime);
1658 $logfile = "$prefix/" . strftime($logfile_name, localtime);
1661 if ($log_prefix =~ m/(\%[mt])/) {
1662 my ($year, $month, $day, $hour, $min, $sec) = (localtime(time))[5,4,3,2,1,0];
1663 my ($h_sec, $h_msec) = gettimeofday;
1664 $date = sprintf ("%02d-%02d-%04d %02d:%02d:%02d.%03d", $day, $month+1, $year+1900, $hour, $min, $sec, $h_msec/1000);
1665 $log_prefix =~ s/\%m/$date/g;
1667 $date = sprintf ("%02d-%02d-%04d %02d:%02d:%02d", $day, $month+1, $year+1900, $hour, $min, $sec);
1668 $log_prefix =~ s/\%t/$date/g;
1670 if ($log_prefix =~ m/(\%p)/) {
1671 $log_prefix =~ s/\%p/$g_pid/g;
1674 if (open(LOGFILE, ">>", $logfile)) {
1675 print LOGFILE $log_prefix . " " . $message;
1679 println(lookupMsg('err_write_fail', "logfile", $logfile));
1685 printlog ($_[0], $_[1], $_[2], $_[3] . $/);
1689 my $dbconninfo = shift;
1692 my $exit_code = shift;
1695 my $logfile = shift;
1696 my $log_prefix = shift;
1708 unless($results = (read_file($logfile))) {
1709 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_read_fail', "logfile", $logfile));
1712 if (defined($script) && (-e $script)) {
1713 unless ($script_data = (read_file($script))) {
1714 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_read_fail', "script file", $script));
1718 $script_data = "No script data was generated.";
1719 $script = "No script generated.";
1722 $dsn = "DBI:Pg:$dbconninfo;";
1724 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
1725 $query = "INSERT INTO public.failovers (reason, exit_code, results, script, cluster_name)
1726 VALUES (?, ?, ?, ?, ?)";
1728 $sth = $dbh->prepare($query);
1730 $sth->bind_param(1, $reason);
1731 $sth->bind_param(2, $exit_code);
1732 $sth->bind_param(3, $results);
1733 $sth->bind_param(4, $script . ":\n" . $script_data);
1734 $sth->bind_param(5, $clname);
1743 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
1745 die lookupMsg('err_pgsql_connect');
1752 my $date_string = shift;
1753 my $g_ug = new Data::UUID;
1754 my $g_uuid = $g_ug->create_from_name("failover_script", $date_string);
1755 my $g_uuid_str = $g_ug->to_string($g_uuid);
1761 my $logfile = shift;
1762 my $log_prefix = shift;
1763 my $pidfile_name = shift;
1767 if ($pidfile_name =~ /^\//i) {
1768 $pidfile = $pidfile_name;
1771 $pidfile = "$prefix/" . $pidfile_name;
1774 open (PIDFILE, ">", $pidfile);
1780 printlogln($prefix,$logfile,$log_prefix, lookupMsg('dbg_generic', $!));
1782 printlogln($prefix,$logfile,$log_prefix, lookupMsg('err_write_fail', "pid file", $pidfile));
1790 my $logfile = shift;
1791 my $log_prefix = shift;
1792 my $pidfile_name = shift;
1796 if ($pidfile_name =~ /^\//i) {
1797 $pidfile = $pidfile_name;
1800 $pidfile = "$prefix/" . $pidfile_name;
1807 printlogln($prefix,$logfile,$log_prefix, lookupMsg('dbg_generic', 'PID file never existed to be removed'));
1812 printlogln($prefix,$logfile,$log_prefix, lookupMsg('dbg_generic', $!));
1814 printlogln($prefix,$logfile,$log_prefix, lookupMsg('err_unlink_fail', "pid file", $pidfile));
1820 sub checkProvidesAllSets {
1821 my ($originSets, $providerSets) = @_;
1824 undef @test_hash{@$originSets}; # add a hash key for each element of @$originSets
1825 delete @test_hash{@$providerSets}; # remove all keys for elements of @$providerSets
1827 return !%test_hash; # return false if any keys are left in the hash
1830 sub checkSubscribesAnySets {
1831 my ($originSets, $subscriberSets) = @_;
1836 undef @test_hash{@$originSets}; # add a hash key for each element of @$originSets
1837 $before = scalar(keys %test_hash);
1838 delete @test_hash{@$subscriberSets}; # remove all keys for elements of @$subscriberSets
1839 $after = scalar(keys %test_hash);
1840 return ($before != $after); # return false if no keys were removed from the hash
1844 my $cfgfile = shift;
1846 my $success = false;
1849 if (open(CFGFILE, "<", $cfgfile)) {
1850 foreach (<CFGFILE>) {
1855 s/#(?=(?:(?:[^']|[^"]*+'){2})*+[^']|[^"]*+\z).*//;
1857 if (length(trim($_))) {
1858 @fields = split('=', $_, 2);
1859 given(lc($fields[0])) {
1860 $value = qtrim(trim($fields[1]));
1864 when(/\bslony_database_host\b/i) {
1867 when(/\bslony_database_port\b/i) {
1868 $g_dbport = checkInteger($value);
1870 when(/\bslony_database_name\b/i) {
1873 when(/\bslony_database_user\b/i) {
1876 when(/\bslony_database_password\b/i) {
1879 when(/\bslony_cluster_name\b/i) {
1882 when(/\benable_debugging\b/i) {
1883 $g_debug = checkBoolean($value);
1885 when(/\bprefix_directory\b/i) {
1888 when(/\bseparate_working_directory\b/i) {
1889 $g_separate_working = checkBoolean($value);
1891 when(/\bpid_filename\b/i) {
1892 $g_pidfile = $value;
1894 when(/\bfailover_offline_subscriber_only\b/i) {
1895 $g_fail_subonly = checkBoolean($value);
1897 when(/\bdrop_failed_nodes\b/i) {
1898 $g_drop_failed = checkBoolean($value);
1900 when(/\blog_line_prefix\b/i) {
1901 $g_log_prefix = $value;
1903 when(/\blog_filename\b/i) {
1904 $g_logfile = $value;
1906 when(/\blog_to_postgresql\b/i) {
1907 $g_log_to_db = checkBoolean($value);
1909 when(/\blog_database_host\b/i) {
1910 $g_logdb_host = $value;
1912 when(/\blog_database_port\b/i) {
1913 $g_logdb_port = checkInteger($value);
1915 when(/\blog_database_name\b/i) {
1916 $g_logdb_name = $value;
1918 when(/\blog_database_user\b/i) {
1919 $g_logdb_user = $value;
1921 when(/\blog_database_password\b/i) {
1922 $g_logdb_pass = $value;
1924 when(/\benable_try_blocks\b/i) {
1925 $g_use_try_blocks = checkBoolean($value);
1927 when(/\bpull_aliases_from_comments\b/i) {
1928 $g_use_comment_aliases = checkBoolean($value);
1930 when(/\bslonik_path\b/i) {
1931 $g_slonikpath = $value;
1933 when(/\blockset_method\b/i) {
1934 $g_lockset_method = $value;
1936 when(/\benable_autofailover\b/i) {
1937 $g_autofailover = checkBoolean($value);
1939 when(/\bautofailover_poll_interval\b/i) {
1940 $g_autofailover_poll_interval = checkInteger($value);
1942 when(/\bautofailover_node_retry\b/i) {
1943 $g_autofailover_retry = checkInteger($value);
1945 when(/\bautofailover_sleep_time\b/i) {
1946 $g_autofailover_retry_sleep = checkInteger($value);
1948 when(/\bautofailover_forwarding_providers\b/i) {
1949 $g_autofailover_provs = checkBoolean($value);
1951 when(/\bautofailover_config_any_node\b/i) {
1952 $g_autofailover_config_any = checkBoolean($value);
1954 when(/\bautofailover_perspective_sleep_time\b/i) {
1955 $g_autofailover_perspective_sleep = checkInteger($value);
1957 when(/\bautofailover_majority_only\b/i) {
1958 $g_autofailover_majority_only = checkBoolean($value);
1960 when(/\bautofailover_is_quorum\b/i) {
1961 $g_autofailover_is_quorum = checkBoolean($value);
1971 println(lookupMsg('err_fail_config'));
1980 if ( grep /^$text$/i, ("y","yes","t","true","on") ) {
1983 elsif ( grep /^$text$/i, ("n","no","f","false","off") ) {
1990 my $integer = shift;
1993 if (($integer * 1) eq $integer) {
1994 $value = int($integer);
2003 my $logfile = shift;
2004 my $log_prefix = shift;
2008 printlogln($prefix,$logfile,$log_prefix, lookupMsg('dbg_slonik_script', $script));
2010 if (open(SLONIKSTATUS, "-|", "slonik $script 2>&1")) {
2011 while (<SLONIKSTATUS>) {
2012 printlogln($prefix,$logfile,$log_prefix,lookupMsg('slonik_output', $_));
2014 close(SLONIKSTATUS);
2018 printlogln($prefix,$logfile,$log_prefix, lookupMsg('err_running_slonik', $!));
2025 my $dbconninfo = shift;
2030 my $logfile = shift;
2031 my $log_prefix = shift;
2042 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_init'));
2043 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_init_cnf', ($g_autofailover_config_any ? 'any' : 'specified target')));
2044 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_init_pol', $g_autofailover_poll_interval));
2045 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_init_ret', $g_autofailover_retry, $g_autofailover_retry_sleep));
2046 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_init_set', ($g_autofailover_provs ? 'will' : 'will not')));
2049 # Probe current cluster configuration every minute
2050 if (!defined($cluster_time) || (time()-$cluster_time > 60)) {
2052 $cluster_loaded = false;
2053 if (!defined($cluster_time) || !$g_autofailover_config_any) {
2055 ($node_count, $version) = loadCluster($dbconninfo, $clname, $dbuser, $dbpass, $prefix, $logfile, $log_prefix);
2056 die lookupMsg('err_cluster_empty') if ($node_count == 0);
2057 @cluster = @g_cluster;
2058 die lookupMsg('err_cluster_lone') if ($node_count == 1);
2059 $cluster_loaded = true;
2062 printlogln($prefix,$logfile,$log_prefix, lookupMsg('load_cluster_fail', 'from supplied configuration'));
2064 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
2069 foreach (@cluster) {
2070 if ($_->[6] eq "ACTIVE") {
2071 unless ($cluster_loaded) {
2073 ($node_count, $version) = loadCluster($_->[2], $clname, $dbuser, $dbpass, $prefix, $logfile, $log_prefix);
2074 die lookupMsg('err_cluster_empty') if ($node_count == 0);
2075 @cluster = @g_cluster;
2076 die lookupMsg('err_cluster_lone') if ($node_count == 1);
2077 $cluster_loaded = true;
2080 printlogln($prefix,$logfile,$log_prefix, lookupMsg('load_cluster_fail', 'from node ' . $_->[0] . ': trying next node'));
2082 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
2090 if ($cluster_loaded) {
2091 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_load_cluster', (!defined($cluster_time) ? "Loaded" : "Reloaded"), $version, $clname, $node_count));
2092 $cluster_time = time();
2095 printlogln($prefix,$logfile,$log_prefix, lookupMsg('load_cluster_fail', 'from any node'));
2099 if ($cluster_loaded) {
2102 while(($current_retry <= $g_autofailover_retry) && ((!defined($failed)) || ($failed > 0))) {
2103 # Check status of cluster
2104 $failed = checkFailed($clname, $dbuser, $dbpass, $prefix, $logfile, $log_prefix);
2107 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_cluster_good'));
2109 if ($current_retry > 0) {
2110 printlogln($prefix,$logfile,$log_prefix,lookupMsg('cluster_fixed'));
2114 if (($failed > 0) && ($current_retry <= $g_autofailover_retry)) {
2115 printlogln($prefix,$logfile,$log_prefix,lookupMsg('cluster_failed', $failed,$g_autofailover_retry_sleep,$current_retry,$g_autofailover_retry));
2116 usleep($g_autofailover_retry_sleep * 1000);
2120 if ((!$g_autofailover_majority_only || checkSplit($prefix, $logfile, $log_prefix)) && (($g_autofailover_perspective_sleep <= 0) || checkPerspective($clname, $dbuser, $dbpass, $prefix, $logfile, $log_prefix))) {
2121 $actions = findBackup($clname, $dbuser, $dbpass, $prefix, $logfile, $log_prefix);
2123 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_proceed'));
2124 foreach my $failed ( keys %g_backups ) {
2125 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_detail', $failed, $g_backups{$failed}));
2127 $g_script = writeFailover($prefix, $dbconninfo, $clname, $dbuser, $dbpass, undef, undef, $g_subs_follow_origin, $g_use_comment_aliases, $logfile, $log_prefix);
2128 unless (runSlonik($g_script, $prefix, $logfile, $log_prefix)) {
2129 printlogln($prefix,$logfile,$log_prefix,lookupMsg('err_execute_fail', 'slonik script', $g_script));
2131 $cluster_loaded = false;
2132 #print "SCRIPT: $g_script\n";
2136 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_halt', $failed));
2140 usleep($g_autofailover_poll_interval * 1000);
2151 my $logfile = shift;
2152 my $log_prefix = shift;
2154 my $majority = false;
2155 my $failed = scalar(@g_unresponsive);
2156 my $survivers = (scalar(@g_cluster) - scalar(@g_unresponsive));
2158 if ($survivers > $failed) {
2160 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_split_check', $survivers, ($survivers+$failed)));
2162 elsif (($survivers == $failed) && $g_autofailover_is_quorum) {
2164 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_split_check', ($survivers . '+quorum'), ($survivers+$failed)));
2167 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_split_check_fail', $survivers));
2173 # Check each nodes perspective of the failure to try to ensure the issue isn't that this script just can't connect to the origin/provider
2174 # The idea here is just to wait for a short period of time and see if the lag time for the nodes has increased by the same amount.
2175 sub checkPerspective {
2180 my $logfile = shift;
2181 my $log_prefix = shift;
2190 my @unresponsive_ids;
2197 foreach (@g_unresponsive) {
2198 push(@unresponsive_ids, $_->[0]);
2200 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check', join(", ", @unresponsive_ids), scalar(@g_unresponsive), scalar(@g_cluster)));
2202 foreach (@g_cluster) {
2203 unless ($_->[0] ~~ @unresponsive_ids) {
2204 $dsn = "DBI:Pg:$_->[2];";
2206 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
2207 $qw_clname = $dbh->quote_identifier("_" . $clname);
2209 $query = "SELECT a.st_origin, a.st_received, extract(epoch from a.st_lag_time)::integer
2210 FROM _test_replication.sl_status a
2211 INNER JOIN _test_replication.sl_node b on a.st_origin = b.no_id
2212 INNER JOIN _test_replication.sl_node c on a.st_received = c.no_id
2213 WHERE a.st_received IN (" . substr('?, ' x scalar(@unresponsive_ids), 0, -2) . ") ORDER BY a.st_origin, a.st_received;";
2215 $sth = $dbh->prepare($query);
2218 foreach (@unresponsive_ids) {
2219 $sth->bind_param($param_on, $_);
2224 while (my @node_lag = $sth->fetchrow) {
2225 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_data', 'Check1', $_->[0], $node_lag[0], $node_lag[1], $node_lag[2]));
2226 push(@lag_info1, \@node_lag);
2233 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_fail', $_->[0], $@));
2240 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_sleep', $g_autofailover_perspective_sleep));
2241 usleep($g_autofailover_perspective_sleep * 1000);
2243 foreach (@g_cluster) {
2244 unless ($_->[0] ~~ @unresponsive_ids) {
2245 $dsn = "DBI:Pg:$_->[2];";
2247 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
2248 $qw_clname = $dbh->quote_identifier("_" . $clname);
2250 $query = "SELECT a.st_origin, a.st_received, extract(epoch from a.st_lag_time)::integer
2251 FROM _test_replication.sl_status a
2252 INNER JOIN _test_replication.sl_node b on a.st_origin = b.no_id
2253 INNER JOIN _test_replication.sl_node c on a.st_received = c.no_id
2254 WHERE a.st_received IN (" . substr('?, ' x scalar(@unresponsive_ids), 0, -2) . ") ORDER BY a.st_origin, a.st_received;";
2256 $sth = $dbh->prepare($query);
2259 foreach (@unresponsive_ids) {
2260 $sth->bind_param($param_on, $_);
2265 while (my @node_lag = $sth->fetchrow) {
2266 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_data', 'Check2', $_->[0], $node_lag[0], $node_lag[1], $node_lag[2]));
2267 push(@lag_info2, \@node_lag);
2274 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_fail', $_->[0], $@));
2282 foreach (@lag_info1) {
2284 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', ("Node $_->[0] lag between checks on node $_->[1] is " . ($lag_info2[$lag_idx]->[2]-$_->[2]) . " seconds")));
2287 if ((($lag_info2[$lag_idx]->[2]-$_->[2])*1000) >= $g_autofailover_perspective_sleep) {
2295 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_unknown'));
2297 elsif ($lag_idx == $lag_confirmed) {
2298 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_true'));
2302 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_pspec_check_false'));
2313 my $logfile = shift;
2314 my $log_prefix = shift;
2320 my $result_count = 0;
2321 my $prov_failed = 0;
2322 my $subonly_failed = 0;
2324 undef @g_unresponsive;
2326 foreach (@g_cluster) {
2327 if ($_->[6] eq "ACTIVE") {
2329 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_autofailover_check',$_->[0], ($_->[4] // "unnamed"),(defined($_->[9]) ? "provider of sets $_->[9]" : "sole subscriber"),$_->[2]));
2333 if ((defined($_->[3])) || ($g_autofailover_provs && defined($_->[9]))) {
2334 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_autofailover_active_check', 'provider', $_->[0]));
2337 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_autofailover_active_check', 'subscriber only', $_->[0]));
2341 $dsn = "DBI:Pg:$_->[2];";
2343 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
2344 $query = "SELECT count(*) FROM pg_namespace WHERE nspname = ?";
2345 $sth = $dbh->prepare($query);
2346 $sth->bind_param(1, "_" . $clname);
2349 $result_count = $result_count+$sth->rows;
2356 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
2358 push(@g_unresponsive, \@$_);
2359 if ((defined($_->[3])) || ($g_autofailover_provs && defined($_->[9]))) {
2360 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_unresponsive', $_->[0]));
2361 unless ($g_failover_method ne 'new' && !defined($_->[3])) {
2366 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_unresponsive_subonly', $_->[0]));
2367 if ($g_fail_subonly) {
2375 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_autofailover_check',$_->[0], ($_->[4] // "unnamed"), lc($_->[6] // "unknown") . ' node', $_->[2]));
2379 if ($prov_failed > 0) {
2380 return ($prov_failed+$subonly_failed);
2383 return $prov_failed;
2392 my $logfile = shift;
2393 my $log_prefix = shift;
2400 my $result_count = 0;
2401 my $lowest_lag_time;
2402 my $lowest_lag_events;
2404 my $best_node_is_direct;
2407 my %backup_for_set_chosen;
2412 foreach (@g_unresponsive) {
2413 if ($g_fail_subonly || (defined($_->[3])) || ($g_autofailover_provs && defined($_->[9]))) {
2414 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_promote_find', ($_->[9] // "none"), $_->[0]));
2416 undef $best_node_id;
2417 $lowest_lag_time = (1<<$Config{ivsize}*8-1)-1;
2418 $lowest_lag_events = $lowest_lag_time;
2420 if (defined($_->[9]) && (exists $backup_for_set_chosen{$_->[9]})) {
2421 $best_node_id = $backup_for_set_chosen{$_->[9]};
2422 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_promote_found', $_->[9], $_->[0]));
2425 foreach my $subscriber (@g_cluster) {
2426 if ($subscriber->[0] != $_->[0]) {
2428 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_check_sub',$subscriber->[0]));
2431 $dsn = "DBI:Pg:$subscriber->[2]";
2434 $dbh = DBI->connect($dsn, $dbuser, $dbpass, {RaiseError => 1});
2435 $qw_clname = $dbh->quote_identifier("_" . $clname);
2437 $query = "SELECT extract(epoch from a.st_lag_time), a.st_lag_num_events, (a.st_received = ?) AS direct
2438 FROM $qw_clname.sl_status a
2439 INNER JOIN $qw_clname.sl_subscribe b ON b.sub_provider = a.st_received AND b.sub_receiver = a.st_origin
2441 GROUP BY a.st_lag_time, a.st_lag_num_events, a.st_received;";
2443 $sth = $dbh->prepare($query);
2444 $sth->bind_param(1, $_->[0]);
2447 while (my @subinfo = $sth->fetchrow) {
2450 if (defined($_->[9])) {
2451 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_node_detail', $subscriber->[0], ($subinfo[2]?"directly":"indirectly"), (defined($_->[3])?"origin":"provider"), $_->[0], $subscriber->[7], $subinfo[0], $subinfo[1]));
2452 @sets_from = split(',',$_->[9]);
2453 @sets_to = split(',',$subscriber->[7]);
2455 elsif ($g_fail_subonly) {
2456 # Subscriber only node will have no active sets forwarding sets to check
2457 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_node_detail_subonly', $subscriber->[0], ($subinfo[2]?"directly":"indirectly"), (defined($_->[3])?"origin":"provider"), $_->[0], $subinfo[0], $subinfo[1]));
2462 if ((checkProvidesAllSets(\@sets_from, \@sets_to)) && (($subinfo[0] < $lowest_lag_time && ($subinfo[2] || !defined($best_node_id))) || (!$best_node_is_direct && $subinfo[2]))) {
2463 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_promote_best', $subscriber->[0], $subinfo[0], $subinfo[1]));
2464 $best_node_id = $subscriber->[0];
2465 $lowest_lag_time = $subinfo[0];
2466 $lowest_lag_events = $subinfo[1];
2467 $best_node_is_direct = $subinfo[2];
2472 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_check_sub_fail', $subscriber->[0]));
2474 printlogln($prefix,$logfile,$log_prefix,lookupMsg('dbg_generic', $@));
2480 if (defined($best_node_id)) {
2481 push(@g_failed, \@$_);
2482 $g_backups{$_->[0]} = $best_node_id;
2483 if (defined($_->[9]) && !(exists $g_backups{$_->[9]})) {
2484 $backup_for_set_chosen{$_->[9]} = $best_node_id;
2488 printlog($prefix,$logfile,$log_prefix,lookupMsg('autofailover_promote_fail'));
2492 printlogln($prefix,$logfile,$log_prefix,lookupMsg('autofailover_promote_skip', $_->[0]));
2495 return keys(%g_backups);