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Add initial event logging code

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This commit is contained in:
Ian Barwick
2015-03-13 16:43:28 +09:00
parent 886a9fd036
commit 0307c51d4b
4 changed files with 410 additions and 19 deletions
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89
repmgrd.c
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@@ -154,6 +154,7 @@ main(int argc, char **argv)
int optindex;
int c;
bool daemonize = false;
bool startup_event_logged = false;
FILE *fd;
@@ -312,6 +313,17 @@ main(int argc, char **argv)
update_registration();
}
/* Log startup event */
if(startup_event_logged == false)
{
create_event_record(primary_conn,
local_options.node,
"repmgrd_start",
true,
NULL);
startup_event_logged = true;
}
log_info(_("starting continuous primary connection check\n"));
/*
@@ -395,6 +407,16 @@ main(int argc, char **argv)
my_local_conn = establish_db_connection(local_options.conninfo, true);
update_registration();
}
/* Log startup event */
if(startup_event_logged == false)
{
create_event_record(primary_conn,
local_options.node,
"repmgrd_start",
true,
NULL);
startup_event_logged = true;
}
/*
* Every local_options.monitor_interval_secs seconds, do
@@ -1301,6 +1323,9 @@ do_primary_failover(void)
/* if local node is the best candidate, promote it */
if (best_candidate.node_id == local_options.node)
{
PQExpBufferData event_details;
initPQExpBuffer(&event_details);
/* wait */
sleep(5);
@@ -1329,17 +1354,42 @@ do_primary_failover(void)
/* update node information to reflect new status */
if(update_node_record_set_primary(my_local_conn, node_info.node_id, failed_primary.node_id) == false)
{
appendPQExpBuffer(&event_details,
_("unable to update node record for node %i (promoted to master following failure of node %i)"),
node_info.node_id,
failed_primary.node_id);
create_event_record(my_local_conn,
node_info.node_id,
"repmgrd_failover_promote",
false,
event_details.data);
terminate(ERR_DB_QUERY);
}
/* update internal record for this node*/
node_info = get_node_info(my_local_conn, local_options.cluster_name, local_options.node);
appendPQExpBuffer(&event_details,
_("node %i promoted to master; old master %i marked as failed"),
node_info.node_id,
failed_primary.node_id);
create_event_record(my_local_conn,
node_info.node_id,
"repmgrd_failover_promote",
true,
event_details.data);
}
/* local node not promotion candidate - find the new primary */
else
{
PGconn *new_primary_conn;
PQExpBufferData event_details;
initPQExpBuffer(&event_details);
/* wait */
sleep(10);
@@ -1367,10 +1417,19 @@ do_primary_failover(void)
{
if(create_replication_slot(new_primary_conn, node_info.slot_name) == false)
{
log_err(("Unable to create slot '%s' on the primary node: %s\n"),
node_info.slot_name,
PQerrorMessage(new_primary_conn)
);
appendPQExpBuffer(&event_details,
_("Unable to create slot '%s' on the primary node: %s"),
node_info.slot_name,
PQerrorMessage(new_primary_conn));
create_event_record(new_primary_conn,
node_info.node_id,
"repmgrd_failover_follow",
false,
event_details.data);
log_err("%s\n", event_details.data);
PQfinish(new_primary_conn);
terminate(ERR_DB_QUERY);
@@ -1390,13 +1449,35 @@ do_primary_failover(void)
/* update node information to reflect new status */
if(update_node_record_set_upstream(new_primary_conn, node_info.node_id, best_candidate.node_id) == false)
{
appendPQExpBuffer(&event_details,
_("Unable to update node record for node %i (following new upstream node %i)"),
node_info.node_id,
best_candidate.node_id);
create_event_record(new_primary_conn,
node_info.node_id,
"repmgrd_failover_follow",
false,
event_details.data);
terminate(ERR_BAD_CONFIG);
}
/* update internal record for this node*/
node_info = get_node_info(new_primary_conn, local_options.cluster_name, local_options.node);
appendPQExpBuffer(&event_details,
_("Node %i now following new upstream node %i"),
node_info.node_id,
best_candidate.node_id);
create_event_record(new_primary_conn,
node_info.node_id,
"repmgrd_failover_follow",
true,
event_details.data);
PQfinish(new_primary_conn);
destroyPQExpBuffer(&event_details);
}
/* to force it to re-calculate mode and master node */