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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-7690

Caching of Dynamic SNMPv2 indexes

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      Description

      After upgrading zabbix server from 2.0.10 to 2.2.1 i have noticed that i have a huge snmpv2 queue in Administation->Queue.
      Poller processes is about 40% busy.
      I am started tcpdump and listening for snmpv2 packets. I saw a lot of GetNextRequest packets, which are sended to hosts, which contains items that was created with dynamic index (https://www.zabbix.com/documentation/2.2/manual/config/items/itemtypes/snmp/dynamicindex).
      Next, i opened cpu graph on one of this hosts, and i saw high cpu utilization, caused by SNMPv2 packets. Looks like caching of this indexes works incorrect and zabbix server continuously trying to rebuild cache.

        Attachments

        1. zabbix_server.log
          396 kB
        2. queue.png
          queue.png
          33 kB
        3. cpu.png
          cpu.png
          50 kB

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            Assignee:
            Unassigned Unassigned
            Reporter:
            strobil Mikhail Alipa
            Votes:
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              Created:
              Updated:
              Resolved: