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Add configuration option "log_status_interval"

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Normally (outside of log level DEBUG) repmgrd doesn't generate any
kind of log output, so examining the log file may give the impression
it's not working. Output an informational message at regular intervals
to show it's up and running.
This commit is contained in:
Ian Barwick
2017-07-03 12:14:52 +09:00
parent 34c746fcde
commit 18b40be7f1
6 changed files with 64 additions and 7 deletions
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59
repmgrd.c
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@@ -10,6 +10,8 @@
#include <sys/stat.h>
#include <time.h>
#include "portability/instr_time.h"
#include "repmgr.h"
#include "config.h"
#include "voting.h"
@@ -449,7 +451,8 @@ start_monitoring(void)
static void
monitor_streaming_primary(void)
{
NodeStatus node_status = NODE_STATUS_UP;
NodeStatus node_status = NODE_STATUS_UP;
instr_time log_status_interval_start;
/* Log startup event */
if (startup_event_logged == false)
@@ -467,11 +470,17 @@ monitor_streaming_primary(void)
local_node_info.node_id);
}
INSTR_TIME_SET_CURRENT(log_status_interval_start);
while (true)
{
double log_status_interval_elapsed = 0;
instr_time log_status_interval_current;
// cache node list here, refresh at `node_list_refresh_interval`
if (is_server_available(local_node_info.conninfo) == false)
{
/* node is down, we were expecting it to be up */
if (node_status == NODE_STATUS_UP)
{
@@ -499,8 +508,22 @@ monitor_streaming_primary(void)
}
}
loop:
/* emit "still alive" log message at regular intervals, if requested */
if (config_file_options.log_status_interval > 0)
{
INSTR_TIME_SET_CURRENT(log_status_interval_current);
INSTR_TIME_SUBTRACT(log_status_interval_current, log_status_interval_start);
log_status_interval_elapsed = INSTR_TIME_GET_DOUBLE(log_status_interval_current);
if ((int) log_status_interval_elapsed >= config_file_options.log_status_interval)
{
log_info(_("monitoring primary node \"%s\" (node ID: %i)"),
local_node_info.node_name,
local_node_info.node_id);
INSTR_TIME_SET_CURRENT(log_status_interval_start);
}
}
sleep(1);
}
}
@@ -509,7 +532,8 @@ monitor_streaming_primary(void)
static void
monitor_streaming_standby(void)
{
NodeStatus upstream_node_status = NODE_STATUS_UP;
NodeStatus upstream_node_status = NODE_STATUS_UP;
instr_time log_status_interval_start;
// check result
(void) get_node_record(local_conn, local_node_info.upstream_node_id, &upstream_node_info);
@@ -531,16 +555,23 @@ monitor_streaming_standby(void)
NULL);
startup_event_logged = true;
log_notice(_("monitoring node \"%s\" (node ID: %i)"),
log_notice(_("repmgrd on node \"%s\" (node ID: %i) monitoring upstream node \"%s\" (node ID: %i)"),
local_node_info.node_name,
local_node_info.node_id,
upstream_node_info.node_name,
upstream_node_info.node_id);
}
INSTR_TIME_SET_CURRENT(log_status_interval_start);
while (true)
{
double log_status_interval_elapsed = 0;
instr_time log_status_interval_current;
if (is_server_available(upstream_node_info.conninfo) == false)
{
/* upstream node is down, we were expecting it to be up */
if (upstream_node_status == NODE_STATUS_UP)
{
@@ -615,6 +646,24 @@ monitor_streaming_standby(void)
}
loop:
/* emit "still alive" log message at regular intervals, if requested */
if (config_file_options.log_status_interval > 0)
{
INSTR_TIME_SET_CURRENT(log_status_interval_current);
INSTR_TIME_SUBTRACT(log_status_interval_current, log_status_interval_start);
log_status_interval_elapsed = INSTR_TIME_GET_DOUBLE(log_status_interval_current);
if ((int) log_status_interval_elapsed >= config_file_options.log_status_interval)
{
log_info(_("node \"%s\" (node ID: %i) monitoring upstream node \"%s\" (node ID: %i)"),
local_node_info.node_name,
local_node_info.node_id,
upstream_node_info.node_name,
upstream_node_info.node_id);
INSTR_TIME_SET_CURRENT(log_status_interval_start);
}
}
sleep(1);
}
}
@@ -641,7 +690,7 @@ promote_self(void)
log_debug("promote command is:\n \"%s\"",
promote_command);
if (log_type == REPMGR_STDERR && *config_file_options.logfile)
if (log_type == REPMGR_STDERR && *config_file_options.log_file)
{
fflush(stderr);
}