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repmgrd: prevent promotion of sole candidate if priority set to zero

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This commit is contained in:
Ian Barwick
2017-07-19 09:38:32 +09:00
parent 6e270b2faf
commit 9558d0d3b8
1 changed files with 15 additions and 4 deletions
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19
repmgrd-physical.c
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@@ -331,7 +331,7 @@ monitor_streaming_primary(void)
} }
} }
log_verbose(LOG_DEBUG, "sleeping %i seconds (\"monitor_interval_secs\")", log_verbose(LOG_DEBUG, "sleeping %i seconds (parameter \"monitor_interval_secs\")",
config_file_options.monitor_interval_secs); config_file_options.monitor_interval_secs);
sleep(config_file_options.monitor_interval_secs); sleep(config_file_options.monitor_interval_secs);
@@ -1553,11 +1553,22 @@ do_election(void)
upstream_node_info.node_id, upstream_node_info.node_id,
&standby_nodes); &standby_nodes);
/* no other standbys - win by default */ /* no other standbys - normally win by default */
if (standby_nodes.node_count == 0) if (standby_nodes.node_count == 0)
{ {
if (strncmp(upstream_node_info.location, local_node_info.location, MAXLEN) == 0) /* node priority is set to zero - don't promote */
if (local_node_info.priority <= 0)
{
log_notice(_("this node is the only potential candidate, but node priority is %i so will not be promoted automatically"),
local_node_info.priority);
log_hint(_("use \"repmgr standby promote\" to manually promote this node"));
monitoring_state = MS_DEGRADED;
INSTR_TIME_SET_CURRENT(degraded_monitoring_start);
return ELECTION_NOT_CANDIDATE;
}
else if (strncmp(upstream_node_info.location, local_node_info.location, MAXLEN) == 0)
{ {
log_debug("no other nodes - we win by default"); log_debug("no other nodes - we win by default");
return ELECTION_WON; return ELECTION_WON;