Add --repmgrd option to "repmgr node check"

This provides a simple way for checking whether the node's repmgrd is
running.

GitHub #719.
This commit is contained in:
Ian Barwick
2021-09-27 17:46:33 +09:00
parent 16349d95e9
commit 3870768d80
10 changed files with 178 additions and 5 deletions

View File

@@ -35,6 +35,7 @@
static bool copy_file(const char *src_file, const char *dest_file);
static void format_archive_dir(PQExpBufferData *archive_dir);
static t_server_action parse_server_action(const char *action);
static const char *output_repmgrd_status(CheckStatus status);
static void exit_optformat_error(const char *error, int errcode);
@@ -52,9 +53,11 @@ static CheckStatus do_node_check_role(PGconn *conn, OutputMode mode, t_node_info
static CheckStatus do_node_check_slots(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_missing_slots(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_data_directory(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_repmgrd(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_replication_config_owner(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_db_connection(PGconn *conn, OutputMode mode);
/*
* NODE STATUS
*
@@ -941,6 +944,16 @@ do_node_check(void)
exit(return_code);
}
if (runtime_options.repmgrd == true)
{
return_code = do_node_check_repmgrd(conn,
runtime_options.output_mode,
&node_info,
NULL);
PQfinish(conn);
exit(return_code);
}
if (runtime_options.replication_config_owner == true)
{
return_code = do_node_check_replication_config_owner(conn,
@@ -2024,7 +2037,6 @@ do_node_check_missing_slots(PGconn *conn, OutputMode mode, t_node_info *node_inf
return status;
}
CheckStatus
do_node_check_data_directory(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output)
{
@@ -2159,6 +2171,53 @@ do_node_check_data_directory(PGconn *conn, OutputMode mode, t_node_info *node_in
return status;
}
CheckStatus
do_node_check_repmgrd(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output)
{
CheckStatus status = CHECK_STATUS_OK;
if (mode == OM_CSV && list_output == NULL)
{
log_error(_("--csv output not provided with --repmgrd option"));
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
status = get_repmgrd_status(conn);
switch (mode)
{
case OM_OPTFORMAT:
printf("--repmgrd=%s\n",
output_check_status(status));
break;
case OM_NAGIOS:
printf("REPMGRD %s: %s\n",
output_check_status(status),
output_repmgrd_status(status));
break;
case OM_CSV:
case OM_TEXT:
if (list_output != NULL)
{
check_status_list_set(list_output,
"repmgrd",
status,
output_repmgrd_status(status));
}
else
{
printf("%s (%s)\n",
output_check_status(status),
output_repmgrd_status(status));
}
default:
break;
}
return status;
}
/*
* This is not included in the general list output
*/
@@ -3570,6 +3629,25 @@ copy_file(const char *src_file, const char *dest_file)
}
static const char *
output_repmgrd_status(CheckStatus status)
{
switch (status)
{
case CHECK_STATUS_OK:
return "repmgrd running";
case CHECK_STATUS_WARNING:
return "repmgrd running but paused";
case CHECK_STATUS_CRITICAL:
return "repmgrd not running";
case CHECK_STATUS_UNKNOWN:
return "repmgrd status unknown";
}
return "UNKNOWN";
}
void
do_node_help(void)
{
@@ -3612,6 +3690,7 @@ do_node_help(void)
printf(_(" --role check node has expected role\n"));
printf(_(" --slots check for inactive replication slots\n"));
printf(_(" --missing-slots check for missing replication slots\n"));
printf(_(" --repmgrd check if repmgrd is running\n"));
printf(_(" --data-directory-config check repmgr's data directory configuration\n"));
puts("");