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repmgrd: log details of nodes which can see primary

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If a failover is cancelled because other nodes can still see the primary,
log the identies of those nodes.
This commit is contained in:
Ian Barwick
2019-02-23 15:55:06 +09:00
parent b72c894db4
commit 0c68018631
1 changed files with 19 additions and 2 deletions
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21
repmgrd-physical.c
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@@ -3092,6 +3092,9 @@ do_election(void)
ReplInfo local_replication_info;
/* To collate details of nodes with primary visible for logging purposes */
PQExpBufferData nodes_with_primary_visible;
/*
* Check if at least one server in the primary's location is visible; if
* not we'll assume a network split between this node and the primary
@@ -3224,6 +3227,8 @@ do_election(void)
/* pointer to "winning" node, initially self */
candidate_node = &local_node_info;
initPQExpBuffer(&nodes_with_primary_visible);
for (cell = sibling_nodes.head; cell; cell = cell->next)
{
ReplInfo sibling_replication_info;
@@ -3319,6 +3324,11 @@ do_election(void)
nodes_with_primary_still_visible++;
log_notice(_("node %i last saw primary node %i second(s) ago, considering primary still visible"),
cell->node_info->node_id, sibling_replication_info.primary_last_seen);
appendPQExpBuffer(&nodes_with_primary_visible,
" - node \"%s\" (ID: %i): %i second(s) ago\n",
cell->node_info->node_name,
cell->node_info->node_id,
sibling_replication_info.primary_last_seen);
}
else
{
@@ -3394,17 +3404,24 @@ do_election(void)
if (nodes_with_primary_still_visible > 0)
{
log_notice(_("%i nodes can seen the primary"), nodes_with_primary_still_visible);
// XXX list nodes as detail
log_notice(_("%i nodes can see the primary"),
nodes_with_primary_still_visible);
log_detail(_("following nodes can see the primary:\n%s"),
nodes_with_primary_visible.data);
monitoring_state = MS_DEGRADED;
INSTR_TIME_SET_CURRENT(degraded_monitoring_start);
reset_node_voting_status();
termPQExpBuffer(&nodes_with_primary_visible);
return ELECTION_CANCELLED;
}
termPQExpBuffer(&nodes_with_primary_visible);
log_info(_("visible nodes: %i; total nodes: %i; no nodes have seen the primary within the last %i seconds"),
visible_nodes,
total_nodes,