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repmgrd: add notice about different location preventing standby promotion

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Though we note this in the DEBUG output, it's not immediately obvious
from the logs, especially outside of the DEBUG log level, why a node
didn't promote itself if it is in a different location to the primary.
This commit is contained in:
Ian Barwick
2018-09-27 11:06:18 +09:00
parent 401f903456
commit 1f8f6f3a39
1 changed files with 16 additions and 2 deletions
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18
repmgrd-physical.c
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@@ -1664,7 +1664,19 @@ do_primary_failover(void)
}
else if (election_result == ELECTION_LOST || election_result == ELECTION_NOT_CANDIDATE)
{
log_info(_("follower node awaiting notification from the candidate node"));
/*
* if the node couldn't be promoted as it's not in the same location as the primary,
* add an explanatory notice
*/
if (election_result == ELECTION_NOT_CANDIDATE && strncmp(upstream_node_info.location, local_node_info.location, MAXLEN) != 0)
{
log_notice(_("this node's location (\"%s\") is not the primary node location (\"%s\"), so node cannot be promoted"),
local_node_info.location,
upstream_node_info.location);
}
log_info(_("follower node awaiting notification from a candidate node"));
failover_state = FAILOVER_STATE_WAITING_NEW_PRIMARY;
}
@@ -2766,7 +2778,9 @@ do_election(void)
total_nodes = sibling_nodes.node_count + 1;
log_debug("do_election(): primary location is %s", upstream_node_info.location);
log_debug("do_election(): primary location is \"%s\", standby location is \"%s\"",
upstream_node_info.location,
local_node_info.location);
local_node_info.last_wal_receive_lsn = InvalidXLogRecPtr;