Browse Source

diskstat plugin

master
Olaf Rempel 13 years ago
parent
commit
b426ae7331
4 changed files with 105 additions and 1 deletions
  1. +1
    -0
      .gitignore
  2. +1
    -1
      Makefile
  3. +102
    -0
      plugins/diskstat.c
  4. +1
    -0
      sammler.conf

+ 1
- 0
.gitignore View File

@@ -2,3 +2,4 @@
*.d
sammler
sammler.log
rrd

+ 1
- 1
Makefile View File

@@ -1,7 +1,7 @@
# Toplevel Makefile
WITH_RRD=yes

PLUGINS := ctstat load memory mount netdev random rtstat stat uptime vmstat
PLUGINS := ctstat diskstat load memory mount netdev random rtstat stat uptime vmstat
PLUGINS += apache mysql

# ############################


+ 102
- 0
plugins/diskstat.c View File

@@ -0,0 +1,102 @@
/***************************************************************************
* Copyright (C) 04/2007 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "logging.h"
#include "plugins.h"
#include "probe.h"

#define BUFSIZE 1024

struct sammler_plugin plugin;
static char *buffer;

static const char *ds_def = {
"DS:read_cnt:COUNTER:15:0:U "
"DS:read_sec:COUNTER:15:0:U "
"DS:read_ms:COUNTER:15:0:U "
"DS:write_cnt:COUNTER:15:0:U "
"DS:write_sec:COUNTER:15:0:U "
"DS:write_ms:COUNTER:15:0:U "
};

static const char * get_ds(int ds_id)
{
return ds_def;
}

static int probe(void)
{
FILE *fp = fopen("/proc/diskstats", "r");
if (fp == NULL) {
log_print(LOG_WARN, "plugin diskstats: fopen()");
return -1;
}

while (fgets(buffer, BUFSIZE, fp) != NULL) {
int major, minor;
char device[16];
unsigned int val[11];
int cnt = sscanf(buffer, "%d %d %s %u %u %u %u %u %u %u %u %u %u %u",
&major, &minor, device, &val[0],
&val[1], &val[2], &val[3], &val[4],
&val[5], &val[6], &val[7], &val[8],
&val[9], &val[10]);

if (cnt != 14 || val[0] == 0 || val[1] == 0)
continue;

char filename[32];
int len = snprintf(filename, sizeof(filename), "disk-%s.rrd", device);
if (len < 0 || len >= sizeof(filename))
continue;

probe_submit(&plugin, filename, 0,
"%u:%u:%u:%u:%u:%u",
val[0], val[2], val[3],
val[4], val[6], val[7]);
}

fclose(fp);
return 0;
}

static int init(void)
{
buffer = malloc(BUFSIZE);
return (buffer == NULL) ? -1 : 0;
}

static int fini(void)
{
free(buffer);
return 0;
}

struct sammler_plugin plugin = {
.name = "diskstat",
.interval = 10,
.init = &init,
.fini = &fini,
.probe = &probe,
.get_ds = &get_ds,
};

+ 1
- 0
sammler.conf View File

@@ -17,6 +17,7 @@ plugin vmstat.so
plugin uptime.so
plugin netdev.so
plugin mount.so
plugin diskstat.so
plugin ctstat.so
plugin rtstat.so
plugin random.so


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