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repmgrd: improve logging of BDR monitoring

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Also always log information about event_notification command
This commit is contained in:
Ian Barwick
2017-07-27 21:12:41 +09:00
parent 0037d58dae
commit 7cf3b9b618
7 changed files with 45 additions and 9 deletions
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37
repmgrd-bdr.c
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@@ -33,6 +33,7 @@ monitor_bdr(void)
RecordStatus record_status;
NodeInfoListCell *cell;
PQExpBufferData event_details;
instr_time log_status_interval_start;
/* sanity check local database */
log_info(_("connecting to local database '%s'"),
@@ -139,13 +140,13 @@ monitor_bdr(void)
log_debug("main_loop_bdr() monitoring local node %i", config_file_options.node_id);
log_info(_("starting continuous bdr node monitoring"));
log_info(_("starting continuous BDR node monitoring"));
while (true)
{
/* monitoring loop */
log_verbose(LOG_DEBUG, "bdr check loop...");
log_verbose(LOG_DEBUG, "BDR check loop...");
for (cell = nodes.head; cell; cell = cell->next)
{
@@ -189,6 +190,8 @@ monitor_bdr(void)
cell->node_info->conn = NULL;
}
log_warning(_("unable to connect to node %s (ID %i)"),
cell->node_info->node_name, cell->node_info->node_id);
cell->node_info->conn = try_reconnect(cell->node_info);
/* node has recovered - log and continue */
@@ -240,6 +243,31 @@ monitor_bdr(void)
loop:
/* emit "still alive" log message at regular intervals, if requested */
if (config_file_options.log_status_interval > 0)
{
int log_status_interval_elapsed = calculate_elapsed(log_status_interval_start);
if (log_status_interval_elapsed >= config_file_options.log_status_interval)
{
log_info(_("monitoring BDR replication status on node \"%s\" (ID: %i)"),
local_node_info.node_name,
local_node_info.node_id);
for (cell = nodes.head; cell; cell = cell->next)
{
if (cell->node_info->monitoring_state == MS_DEGRADED)
{
log_detail(
_("monitoring node \"%s\" (ID: %i) in degraded mode"),
cell->node_info->node_name,
cell->node_info->node_id);
}
}
INSTR_TIME_SET_CURRENT(log_status_interval_start);
}
}
if (got_SIGHUP)
{
/*
@@ -259,7 +287,6 @@ monitor_bdr(void)
log_verbose(LOG_DEBUG, "sleeping %i seconds (\"monitor_interval_secs\")",
config_file_options.monitor_interval_secs);
sleep(config_file_options.monitor_interval_secs);
}
return;
@@ -385,6 +412,8 @@ do_bdr_failover(NodeInfoList *nodes, t_node_info *monitored_node)
/* update node record on the active node */
update_node_record_set_active(next_node_conn, monitored_node->node_id, false);
log_notice(_("setting node record for node %i to inactive"), monitored_node->node_id);
appendPQExpBuffer(&event_details,
_("node '%s' (ID: %i) detected as failed; next available node is '%s' (ID: %i)"),
monitored_node->node_name,
@@ -411,6 +440,8 @@ do_bdr_failover(NodeInfoList *nodes, t_node_info *monitored_node)
event_details.data,
&event_info);
log_info("%s", event_details.data);
termPQExpBuffer(&event_details);
unset_bdr_failover_handler(next_node_conn);