Monitoring CPU, Memory and Load

[chocho63]

I'm testing Zabbix and Cacti to see if it could help us to monitor various servers (AIX, HP-UX, Linux, Solaris, Windows).
Zabbix can monitor CPU, Memory, Processor Load and Traffic with Zabbix Agent and SNMP, but only for Linux and Windows. CPU is not monitored for HP-UX, AIX and Solaris, and Processor Load for AIX. The functions for other OS aren't still developped. Will they be planed to be add to Zabbix Agent ?
Cacti can monitor these functions with SNMP (with a thing called ucd/net) for all OS. Is it possible to add this possibility to Zabbix ?

[James Wells]

Greetings,

Cacti is simply a PHP frontend for the RRDtool. Zabbix is capable of monitoring pretty much anything that RRDtool can monitor, however, you have to use SNMP to do most of it. Please note that Cacti adds no capabilities for monitoring, only for displaying the monitored information. Additionally, the ucd/net thing you are talking about is actually an SNMP variant.

[tvman]

CPU monitoring

For my Linux servers I use little script for cpu monitoring which allow to see load in percents. Be a little bit more creative in using such a powerful tool.

[chocho63]

Monitoring CPU, Memory

I agree that Zabbix is more flexible than Cacti, and I think there's more possibilities for monitoring.

I'm using SNMP for monitoring network traffic, but I couldn't find how to monitor CPU or Memory with SNMP. (try ucd/net in Google, and you'll find ... nothing).

I finally see the OID in Cacti that enables to do that, but by default, snmpwalk don't show it :

/usr/local/bin/snmpwalk -c public -v 1 localhost .1.3.6.1.4.1.2021
UCD-SNMP-MIB::memIndex.0 = INTEGER: 0
UCD-SNMP-MIB::memErrorName.0 = STRING: swap
UCD-SNMP-MIB::memTotalSwap.0 = INTEGER: 25165824
UCD-SNMP-MIB::memAvailSwap.0 = INTEGER: 19122820
UCD-SNMP-MIB::memTotalReal.0 = INTEGER: 25165824
UCD-SNMP-MIB::memAvailReal.0 = INTEGER: 268728
UCD-SNMP-MIB::memTotalFree.0 = INTEGER: 19393848
UCD-SNMP-MIB::memMinimumSwap.0 = INTEGER: 16000
UCD-SNMP-MIB::memSwapError.0 = INTEGER: 0
UCD-SNMP-MIB::memSwapErrorMsg.0 = STRING:
UCD-SNMP-MIB::laIndex.1 = INTEGER: 1
UCD-SNMP-MIB::laIndex.2 = INTEGER: 2
UCD-SNMP-MIB::laIndex.3 = INTEGER: 3
UCD-SNMP-MIB::laNames.1 = STRING: Load-1
UCD-SNMP-MIB::laNames.2 = STRING: Load-5
UCD-SNMP-MIB::laNames.3 = STRING: Load-15
UCD-SNMP-MIB::laLoad.1 = STRING: 5.52
UCD-SNMP-MIB::laLoad.2 = STRING: 3.79
UCD-SNMP-MIB::laLoad.3 = STRING: 3.54
UCD-SNMP-MIB::laConfig.1 = STRING: 12.00
UCD-SNMP-MIB::laConfig.2 = STRING: 12.00
UCD-SNMP-MIB::laConfig.3 = STRING: 12.00
UCD-SNMP-MIB::laLoadInt.1 = INTEGER: 552
UCD-SNMP-MIB::laLoadInt.2 = INTEGER: 379
UCD-SNMP-MIB::laLoadInt.3 = INTEGER: 354
UCD-SNMP-MIB::laLoadFloat.1 = Opaque: Float: 5.522781
UCD-SNMP-MIB::laLoadFloat.2 = Opaque: Float: 3.791458
UCD-SNMP-MIB::laLoadFloat.3 = Opaque: Float: 3.544296
UCD-SNMP-MIB::laErrorFlag.1 = INTEGER: 0
UCD-SNMP-MIB::laErrorFlag.2 = INTEGER: 0
UCD-SNMP-MIB::laErrorFlag.3 = INTEGER: 0
UCD-SNMP-MIB::laErrMessage.1 = STRING:
UCD-SNMP-MIB::laErrMessage.2 = STRING:
UCD-SNMP-MIB::laErrMessage.3 = STRING:
UCD-SNMP-MIB::ssIndex.0 = INTEGER: 1
UCD-SNMP-MIB::ssErrorName.0 = STRING: systemStats
UCD-SNMP-MIB::ssSwapIn.0 = INTEGER: 0
UCD-SNMP-MIB::ssSwapOut.0 = INTEGER: 0
UCD-SNMP-MIB::ssIOSent.0 = INTEGER: 17
UCD-SNMP-MIB::ssIOReceive.0 = INTEGER: 17
UCD-SNMP-MIB::ssSysInterrupts.0 = INTEGER: 3
UCD-SNMP-MIB::ssSysContext.0 = INTEGER: 23
UCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 72
UCD-SNMP-MIB::ssCpuSystem.0 = INTEGER: 25
UCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 4
UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 105054204
UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 105084815
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 732748344
UCD-SNMP-MIB::ssCpuRawWait.0 = Counter32: 25116856
UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 79967959
UCD-SNMP-MIB::ssIORawSent.0 = Counter32: 511255298
UCD-SNMP-MIB::ssIORawReceived.0 = Counter32: 1011706304
UCD-SNMP-MIB::ssRawInterrupts.0 = Counter32: 3460633287
UCD-SNMP-MIB::ssRawContexts.0 = Counter32: 1037967192
UCD-DLMOD-MIB::dlmodNextIndex.0 = INTEGER: 1
UCD-DISKIO-MIB::diskIOIndex.1 = INTEGER: 0
UCD-DISKIO-MIB::diskIOIndex.2 = INTEGER: 1
UCD-DISKIO-MIB::diskIOIndex.3 = INTEGER: 2
UCD-DISKIO-MIB::diskIOIndex.4 = INTEGER: 3
UCD-DISKIO-MIB::diskIOIndex.5 = INTEGER: 4
UCD-DISKIO-MIB::diskIOIndex.6 = INTEGER: 5
UCD-DISKIO-MIB::diskIOIndex.7 = INTEGER: 6
....

I'll work on it !

[tvman]

What about this?

In zabbix_agentd.conf

UserParameter=cpu[load],cpu_load.sh

In cpu_load.sh

#!/bin/sh
LAST=""
STAT=`cat /proc/stat | grep cpu0 `
if [ -f /tmp/cpu_last ]; then
LAST=`cat /tmp/cpu_last `

fi
awk -v b="$LAST" -v a="$STAT" '
BEGIN {
if ( b == "" ) {
print "0";
print a > "/tmp/cpu_last";
exit;
}
split(a,data_a," ");
split(b,data_b," ");
d_u = data_a[2] - data_b[2];
d_n = data_a[3] - data_b[3];
d_s = data_a[4] - data_b[4];
d_i = data_a[5] - data_b[5];
load = 100 - (d_i/(d_u + d_s + d_n + d_i)*100);
print load;
print a > "/tmp/cpu_last";
exit;}'

[chocho63]

SNMP monitoring

(for all platforms, Linux, Solaris, Aix, HP-UX, with Net-SNMP)

You can monitor traffic, CPU, Memory, Load Average with Zabbix :

http://www.zabbix.com/forum/showthread.php?p=5152#post5152