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repmgr: improve switchover handling when "pg_ctl" used

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If logging output not explicitly rediretced with "-l" in the pg_ctl
options, repmgr would hang waiting for pg_ctl output.

Note that we recommend using the OS-level service commands where
available.
This commit is contained in:
Ian Barwick
2018-01-30 13:40:38 +09:00
parent b38f45120c
commit 044d8a1098
2 changed files with 31 additions and 13 deletions
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18
repmgr-action-standby.c
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@@ -1905,7 +1905,10 @@ do_standby_follow_internal(PGconn *primary_conn, t_node_info *primary_node_recor
char server_command[MAXLEN] = "";
bool server_up = is_server_available(config_file_options.conninfo);
char *action = NULL;
int r;
bool success;
PQExpBufferData output_buf;
initPQExpBuffer(&output_buf);
if (server_up == true)
{
@@ -1923,8 +1926,9 @@ do_standby_follow_internal(PGconn *primary_conn, t_node_info *primary_node_recor
action,
server_command);
r = system(server_command);
if (r != 0)
success = local_command(server_command, &output_buf);
if (success == false)
{
log_error(_("unable to %s server"), action);
PQfinish(primary_conn);
@@ -2735,7 +2739,8 @@ do_standby_switchover(void)
termPQExpBuffer(&command_output);
}
log_debug("sleeping %i seconds until next check", config_file_options.reconnect_interval);
log_debug("sleeping %i seconds (\"reconnect_interval\") until next check",
config_file_options.reconnect_interval);
sleep(config_file_options.reconnect_interval);
}
@@ -2845,13 +2850,10 @@ do_standby_switchover(void)
/* TODO: verify this node's record was updated correctly */
if (command_success == false || command_output.data[0] == '0')
if (command_success == false)
{
log_error(_("rejoin failed %i"), r);
if (strlen(command_output.data) > 2)
log_detail("%s", command_output.data);
create_event_notification_extended(local_conn,
&config_file_options,
config_file_options.node_id,