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1725 Views 3 Replies Latest reply: Nov 23, 2011 6:52 PM by dpetzel RSS
mberry Rank: White Belt 19 posts since
Oct 24, 2011
Currently Being Moderated

Nov 23, 2011 3:36 PM

Monitoring additional Data Sources on CentOS

Hi,

 

I have a requirement to monitor various OS data sources that do not appear to be available out of the box in Zenoss. For example:

 

Number of connections in CLOSE_WAIT

Fork rate

Number of Processes

VMstat

File table usage

Individual interrupts

Inode table usage

Interrupts & context switches

Swap in/out

 

 

I have been unable to locate a Zenpack or a plugin that can sufficiently monitor these. If anyone has any advice on this topic, I would greatly appreciate it!

 

Thanks in advance

  • jmp242 ZenossMaster 4,060 posts since
    Mar 7, 2007
    Currently Being Moderated
    1. Nov 23, 2011 3:44 PM (in response to mberry)
    Re: Monitoring additional Data Sources on CentOS

    I think most of those aren't in exposed via SNMP by default. You will need to either create your own Zenpacks or hire someone to do so I expect - or just create your own command based datasources / templates.

     

    I don't know which you'd prefer, but you can extend net-snmp on the remote systems with your own OIDs to return values you want, or you could use SSH from Zenoss to do it. In either case it'll be a moderate amount of work. There are differening performance implications - the forums and manual have some details on this.

     

    --

    James Pulver

    ZCA Member

    LEPP Computer Group

    Cornell University

  • dpetzel Rank: Brown Belt 1,141 posts since
    Oct 17, 2010
    Currently Being Moderated
    3. Nov 23, 2011 6:52 PM (in response to mberry)
    Re: Monitoring additional Data Sources on CentOS

    docs/DOC-3909 discusses the "SSH" remote command route. In a nutshell you drop a shell script on the remote host that outputs in the format described in the document, you then invoke this shell script over ssh.

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