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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-18728

UserParameter does not seem to work behind proxy

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Details

    • Incident report
    • Status: Closed
    • Trivial
    • Resolution: Won't fix
    • 5.2.1
    • None
    • None
    • None
    • Debian 10 amd64

    Description

      Steps to reproduce:

      1. Installed agent2 behind zabbix proxy on a host on internet. Proxy is ACTIVE.
      2. Create a template with a key, "exim.paniclog" here
      3. Create a file /etc/zabbix/zabbix_agent2.d/exim-paniclog.conf with UserParameter, contents:

      UserParameter=exim.paniclog,[ -f /tmp/paniclog ] && cat /tmp/paniclog

      4. Add template to regular agent on a VM available within LAN. It works correctly.

      5. Create a remote VM behind a proxy. It works correctly.

      6. Add a template and a UserParameter file to remote VM.

       

      Result:

      Agent on remote VM stops working. Log messages:

      Proxy:

      4092:20201202:171737.447 received configuration data from server at "example.com", datalen 11556
      4111:20201202:171748.429 Zabbix agent item "exim.paniclog" on host "emx2" failed: first network error, wait for 15 seconds
      4114:20201202:171803.443 Zabbix agent item "proc.num[]" on host "emx2" failed: another network error, wait for 15 seconds
      4114:20201202:171818.448 Zabbix agent item "system.cpu.load[percpu,avg1]" on host "emx2" failed: another network error, wait for 15 seconds
      4114:20201202:171833.452 temporarily disabling Zabbix agent checks on host "emx2": host unavailable

      Agent

      2020/12/02 17:19:48.171532 Starting Zabbix Agent 2 (5.2.1)
      2020/12/02 17:19:48.172560 OpenSSL library (OpenSSL 1.1.1d 10 Sep 2019) initialized
      2020/12/02 17:19:48.172864 using configuration file: /etc/zabbix/zabbix_agent2.conf
      2020/12/02 17:19:48.173112 cannot initialize user parameters: cannot register user parameter "exim.paniclog,[ -f /tmp/paniclog ] && cat /tmp/paniclog": key already used

      I've read Release Notes for Zabbix 5.2.2, did not find anything about some proxy related fixes.

      Expected:

      Agent on remote VM can execute UserParameter checks.

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            igorbach Igor Gorbach
            mrkafk@gmail.com MK
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            Dates

              Created:
              Updated:
              Resolved: