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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-18568

Bad handling of double dollar ($$) in user parameters

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    Details

    • Type: Problem report
    • Status: Closed
    • Priority: Trivial
    • Resolution: Duplicate
    • Affects Version/s: 5.0.6, 5.2.0, 5.4.0alpha1
    • Fix Version/s: 5.0.7rc1, 5.2.3rc1, 5.4.0alpha1
    • Component/s: None
    • Labels:
      None
    • Team:
      Team A
    • Sprint:
      Sprint 70 (Nov 2020), Sprint 71 (Dec 2020)

      Description

      *After Release of Zabbix 5.2 I began switching the first agent to *5.2 and to zabbix agent2.

      It seems the handling of double dollar is wrong. Described in https://www.zabbix.com/documentation/current/manual/config/items/userparameters

      Steps to reproduce:

      1. Add config file userparameter_diskstats.conf contains lines like this:
        UserParameter=custom.vfs.dev.read.merged[*],awk '{print $$1}' /sys/class/block/$1/stat
      2. restart zabbix-agent2
      3. zabbix_agent2 -t "custom.vfs.dev.read.merged[dm-1]"

      Result:

      custom.vfs.dev.read.merged[dm-1]                                 [s| 2696802        0 116307270  8722504  3530852        0 197744664 22953464        0  2932116 31721108]

      Expected:

      custom.vfs.dev.read.merged[dm-1]                                 [s| 0]

      Some experiments with less "complicated" expressions like "echo $$1" which should result in "$1" showed me that is seems the double dollar isn't handled (correctly).

      I don't know (yet) if is is a problem of 5.2 or a problem of zabbix agent 2.

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              Assignee:
              viktors.tjarve Viktors Tjarve
              Reporter:
              dsteinkopf Dirk Steinkopf
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                Created:
                Updated:
                Resolved: