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"node check": initial general output

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This commit is contained in:
Ian Barwick
2017-08-14 17:32:44 +09:00
parent 3b2158edbf
commit fa7d60cd51
5 changed files with 313 additions and 137 deletions
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301
repmgr-action-node.c
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@@ -29,6 +29,7 @@ static void _do_node_status_is_shutdown(void);
static void _do_node_archive_config(void);
static void _do_node_restore_config(void);
void
do_node_status(void)
{
@@ -282,14 +283,6 @@ do_node_status(void)
"disabled");
}
// if standby (and in recovery), show:
// upstream
// -> check if matches expected; parse recovery.conf for < 9.6 (must be superuser),
// otherwise use pg_stat_wal_receiver
// streaming/in archive recovery/disconnected
// last received
// last replayed
// lag if streaming, or if in recovery can compare with upstream
if (node_info.type == STANDBY)
{
@@ -511,17 +504,33 @@ void _do_node_status_is_shutdown(void)
return;
}
/*
* Configuration file required
*/
void
do_node_check(void)
{
PGconn *conn = NULL;
PQExpBufferData output;
t_node_info node_info = T_NODE_INFO_INITIALIZER;
CheckStatusList status_list = { NULL, NULL };
CheckStatusListCell *cell = NULL;
if (strlen(config_file_options.conninfo))
conn = establish_db_connection(config_file_options.conninfo, true);
else
conn = establish_db_connection_by_params(&source_conninfo, true);
if (get_node_record(conn, config_file_options.node_id, &node_info) != RECORD_FOUND)
{
log_error(_("no record found for node %i"), config_file_options.node_id);
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
/* handle specific checks
* ====================== */
if (runtime_options.archiver == true)
@@ -538,17 +547,59 @@ do_node_check(void)
return;
}
/* output general overview */
initPQExpBuffer(&output);
//(void) do_node_check_role(conn, runtime_options.output_mode, &output);
(void) do_node_check_replication_lag(conn, runtime_options.output_mode, &status_list);
(void) do_node_check_archiver(conn, runtime_options.output_mode, &status_list);
if (runtime_options.output_mode == OM_CSV)
{
/* TODO */
}
else
{
appendPQExpBuffer(
&output,
"Node \"%s\":\n",
node_info.node_name);
for (cell = status_list.head; cell; cell = cell->next)
{
appendPQExpBuffer(
&output,
"\t%s: %s",
cell->item,
output_check_status(cell->status));
if (strlen(cell->details))
{
appendPQExpBuffer(
&output,
" (%s)",
cell->details);
}
appendPQExpBuffer(&output, "\n");
}
}
printf("%s", output.data);
termPQExpBuffer(&output);
check_status_list_free(&status_list);
PQfinish(conn);
}
CheckStatus
do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
do_node_check_archiver(PGconn *conn, OutputMode mode, CheckStatusList *list_output)
{
bool own_buffer = false;
int ready_archive_files = 0;
PQExpBufferData buf;
CheckStatus status = CHECK_STATUS_UNKNOWN;
PQExpBufferData details;
if (mode == OM_CSV)
{
@@ -556,13 +607,7 @@ do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
exit(ERR_BAD_CONFIG);
}
if (output == NULL)
{
initPQExpBuffer(&buf);
output = &buf;
own_buffer = true;
}
initPQExpBuffer(&details);
ready_archive_files = get_ready_archive_files(conn, config_file_options.data_directory);
@@ -574,24 +619,21 @@ do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=CRITICAL --files=%i --threshold=%i",
ready_archive_files,
config_file_options.archiver_lag_critical);
&details,
"--files=%i --threshold=%i",
ready_archive_files, config_file_options.archiver_lag_critical);
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_ARCHIVER CRITICAL: %i pending files (critical: %i)",
ready_archive_files,
config_file_options.archiver_lag_critical);
&details,
"%i pending files (critical: %i)",
ready_archive_files, config_file_options.archiver_lag_critical);
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"CRITICAL - %i pending files (threshold: %i)",
ready_archive_files,
config_file_options.archiver_lag_critical);
&details,
"%i pending files, threshold: %i",
ready_archive_files, config_file_options.archiver_lag_critical);
break;
default:
@@ -606,24 +648,21 @@ do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=WARNING --files=%i --threshold=%i",
ready_archive_files,
config_file_options.archiver_lag_warning);
&details,
"--files=%i --threshold=%i",
ready_archive_files, config_file_options.archiver_lag_warning);
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_ARCHIVER WARNING: %i pending files (warning: %i)",
ready_archive_files,
config_file_options.archiver_lag_warning);
&details,
"%i pending files (warning: %i)",
ready_archive_files, config_file_options.archiver_lag_warning);
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"WARNING - %i pending files (threshold: %i)",
ready_archive_files,
config_file_options.archiver_lag_warning);
&details,
"%i pending files (threshold: %i)",
ready_archive_files, config_file_options.archiver_lag_warning);
break;
default:
@@ -637,19 +676,12 @@ do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
switch (mode)
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=UNKNOWN");
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_ARCHIVER UNKNOWN: unable to check archive_status directory");
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"UNKNOWN - unable to check archive_status directory");
&details,
"unable to check archive_status directory");
break;
default:
@@ -664,21 +696,14 @@ do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=OK --files=%i",
ready_archive_files);
&details,
"--files=%i", ready_archive_files);
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_ARCHIVER OK: %i pending files",
ready_archive_files);
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"OK - %i pending files",
ready_archive_files);
&details,
"%i pending files", ready_archive_files);
break;
default:
@@ -686,23 +711,49 @@ do_node_check_archiver(PGconn *conn, OutputMode mode, PQExpBufferData *output)
}
}
if (own_buffer == true)
switch (mode)
{
printf("%s\n", buf.data);
termPQExpBuffer(&buf);
case OM_OPTFORMAT:
{
printf("--status=%s %s\n",
output_check_status(status),
details.data);
}
break;
case OM_NAGIOS:
printf("PG_ARCHIVER %s: %s\n",
output_check_status(status),
details.data);
break;
case OM_TEXT:
if (list_output != NULL)
{
check_status_list_set(list_output,
"WAL archiving",
status,
details.data);
}
else
{
printf("%s (%s)\n",
output_check_status(status),
details.data);
}
default:
break;
}
termPQExpBuffer(&details);
return status;
}
CheckStatus
do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *output)
do_node_check_replication_lag(PGconn *conn, OutputMode mode, CheckStatusList *list_output)
{
CheckStatus status = CHECK_STATUS_UNKNOWN;
bool own_buffer = false;
PQExpBufferData buf;
int lag_seconds = 0;
PQExpBufferData details;
if (mode == OM_CSV)
{
@@ -710,12 +761,7 @@ do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *ou
exit(ERR_BAD_CONFIG);
}
if (output == NULL)
{
initPQExpBuffer(&buf);
output = &buf;
own_buffer = true;
}
initPQExpBuffer(&details);
lag_seconds = get_replication_lag_seconds(conn);
@@ -729,24 +775,21 @@ do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *ou
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=CRITICAL --lag=%i --threshold=%i",
lag_seconds,
config_file_options.replication_lag_critical);
&details,
"--lag=%i --threshold=%i",
lag_seconds, config_file_options.replication_lag_critical);
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_REPLICATION_LAG CRITICAL: %i seconds (critical: %i)",
lag_seconds,
config_file_options.replication_lag_critical);
&details,
"%i seconds (critical: %i)",
lag_seconds, config_file_options.replication_lag_critical);
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"CRITICAL - %i seconds (threshold: %i)",
lag_seconds,
config_file_options.replication_lag_critical);
&details,
"%i seconds, threshold: %i)",
lag_seconds, config_file_options.replication_lag_critical);
break;
default:
@@ -761,24 +804,21 @@ do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *ou
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=WARNING --lag=%i --threshold=%i",
lag_seconds,
config_file_options.replication_lag_warning);
&details,
"--lag=%i --threshold=%i",
lag_seconds, config_file_options.replication_lag_warning);
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_REPLICATION_LAG WARNING: %i seconds (warning: %i)",
lag_seconds,
config_file_options.replication_lag_warning);
&details,
"%i seconds (warning: %i)",
lag_seconds, config_file_options.replication_lag_warning);
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"WARNING - %i seconds (threshold: %i)",
lag_seconds,
config_file_options.replication_lag_warning);
&details,
"%i seconds, threshold: %i)",
lag_seconds, config_file_options.replication_lag_warning);
break;
default:
@@ -792,19 +832,12 @@ do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *ou
switch (mode)
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=UNKNOWN");
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_REPLICATION_LAG UNKNOWN: unable to query replication lag");
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"UNKNOWN - unable to query replication lag");
&details,
"unable to query replication lag");
break;
default:
@@ -819,20 +852,15 @@ do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *ou
{
case OM_OPTFORMAT:
appendPQExpBuffer(
output,
"--status=OK --files=%i",
&details,
"--lag=%i",
lag_seconds);
break;
case OM_NAGIOS:
appendPQExpBuffer(
output,
"PG_REPLICATION_LAG OK: %i seconds",
lag_seconds);
break;
case OM_TEXT:
appendPQExpBuffer(
output,
"OK - %i seconds",
&details,
"%i seconds",
lag_seconds);
break;
@@ -841,15 +869,40 @@ do_node_check_replication_lag(PGconn *conn, OutputMode mode, PQExpBufferData *ou
}
}
if (own_buffer == true)
switch (mode)
{
printf("%s\n", buf.data);
termPQExpBuffer(&buf);
case OM_OPTFORMAT:
{
printf("--status=%s %s\n",
output_check_status(status),
details.data);
}
break;
case OM_NAGIOS:
printf("PG_REPLICATION_LAG %s: %s\n",
output_check_status(status),
details.data);
break;
case OM_TEXT:
if (list_output != NULL)
{
check_status_list_set(list_output,
"Replication lag",
status,
details.data);
}
else
{
printf("%s (%s)\n",
output_check_status(status),
details.data);
}
default:
break;
}
termPQExpBuffer(&details);
return status;
}
@@ -1572,3 +1625,5 @@ copy_file(const char *src_file, const char *dest_file)
return true;
}