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repmgrd: enable election rerun

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If "failover_validation_command" is set, and the command returns an error,
rerun the election.

There is a pause between reruns to avoid "churn"; the length of this pause
is controlled by the configuration parameter "election_rerun_interval".
This commit is contained in:
Ian Barwick
2019-03-12 14:03:59 +09:00
committed by Ian Barwick
parent 99923f5ffc
commit fc397f25f6
6 changed files with 68 additions and 6 deletions
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3
configfile.c
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@@ -363,6 +363,7 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
options->connection_check_type = CHECK_PING;
options->primary_visibility_consensus = false;
memset(options->failover_validation_command, 0, sizeof(options->failover_validation_command));
options->election_rerun_interval = DEFAULT_ELECTION_RERUN_INTERVAL;
/*-------------
* witness settings
@@ -647,6 +648,8 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
options->primary_visibility_consensus = parse_bool(value, name, error_list);
else if (strcmp(name, "failover_validation_command") == 0)
strncpy(options->failover_validation_command, value, sizeof(options->failover_validation_command));
else if (strcmp(name, "election_rerun_interval") == 0)
options->election_rerun_interval = repmgr_atoi(value, name, error_list, 0);
/* witness settings */
else if (strcmp(name, "witness_sync_interval") == 0)