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Getting false alerts with Proxy

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  • hughmcl
    Junior Member
    • Oct 2008
    • 20

    #1

    Getting false alerts with Proxy

    Hi,

    I've been running the proxy server for a remote customer and it works pretty well most of the time, however at least once or twice a week I get hundreds of alerts all at once, saying everything is down, followed immediately by alerts saying everything is up! I've verified connectivity of the server and the server isn't losing connectivity!

    I'm running 1.6.5 of server and proxy, 1.6.4 on agents. Before I was running 1.6.4 on server, proxy and agents. I thought an upgrade might fix it, but it didn't.

    Today, I looked closer at the alerts and noticed something really interesting!

    Inside the alerts saying there is a problem, everything says it's UP! So for some reason we get alerted saying it's down EVEN ALTHOUGH the data says it's up!

    HELP! I'm getting pounded by our support staff asking why this is happening and wanting it fixed.




    Server XXXXXXXXX-01 is down is PROBLEM
    Hostname: XXXXXXXXX-01
    IP: 192.168.1.2
    Last Value: Up (1)
    Time: 03:59:51


    Server XXXXXXXXX-01 is down is OK
    Hostname: XXXXXXXXX-01
    IP: 192.168.1.2
    Last Value: Up (1)
    Time: 04:01:10



    Server XXXXXXXXXX-MON is down is PROBLEM
    Hostname: XXXXXXXXXX-MON
    IP: 192.168.0.207
    Last Value: Up (1)
    Time: 03:59:21


    Server XXXXXXXXXX-MON is down is OK
    Hostname: XXXXXXXXXX-MON
    IP: 192.168.0.207
    Last Value: Up (1)
    Time: 04:01:09



    Server XXXXXXXX-Backup-01 is down [XXXXXXXX] is PROBLEM
    Hostname: XXXXXXXX-Backup-01
    IP: 192.168.0.203
    Last Value: Up (1)
    Time: 04:01:22


    Server XXXXXXXX-Backup-01 is down [XXXXXXXX] is OK
    Hostname: XXXXXXXX-Backup-01
    IP: 192.168.0.203
    Last Value: Up (1)
    Time: 04:01:23
  • vinny
    Senior Member
    • Jan 2008
    • 145

    #2
    How ur hosts are triggered as down ? icmpping, no data ?

    Ur problem looks like ur proxy does not receive data for some time, triggering alerts.
    This might be caused by network bottleneck or database overload (have u enabled house keeping ?)


    vinny.
    -------
    Zabbix 1.8.3, 1200+ Hosts, 40 000+ Items...zabbix's everywhere

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    • hughmcl
      Junior Member
      • Oct 2008
      • 20

      #3
      I'm doing nodata checks for this one. I'm also doing icmpping in a separate check.

      I added the nodata check, because sometimes when a server was down, I didn't get a "DOWN" alert with the icmpping (not sure why).

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