Bug#545727: zabbix-agent: key proc.num[] doesn't count some processes correctly

[Christoph Haas]

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Hi, Flavio...

I have had the same problem here. From my own experience the Zabbix
agent counts processes like this:

If the executed program does not alter it's program name ($0) then
Zabbix looks for the basename of the executable. E.g. if you monitor the
"sshd" then you may see this process:

1640 ? Ss 0:51 /usr/sbin/sshd

Zabbix will see the "sshd" basename part of the /usr/sbin/sshd here. Proof:

$> zabbix_get -ssomesystem -k"proc.num[sshd]"
1
$> zabbix_get -ssomesystem -k"proc.num[/usr/sbin/sshd]"

0

In the other case where the program changes its own program name ($0)
then you will need to check for the altered name. In case of Heartbeat:

2476 ? SL 0:27 heartbeat: FIFO reader

$> zabbix_get -ssomesystem -k"proc.num[heartbeat]"

0
$> zabbix_get -ssomesystem -k"proc.num[heartbeat: FIFO reader]"
1

At least that's the behavior in the current 1.6 package.

Does that help you?

Regards
Christoph
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