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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-10785

zabbix server does not mark lld rule as not supported in some cases

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    • Team:
      Team A
    • Sprint:
      Sprint 50 (Mar 2019), Sprint 51 (Apr 2019), Sprint 52 (May 2019), Sprint 53 (Jun 2019)
    • Story Points:
      0

      Description

      Internal monitoring for LLD rules is even more important than regular items, so I've decided to use actions for lld-rule-based internal events.
      After some time it's appeared to be that I don't get alerts when I expected to get them.

      It appeared to be that lld rule can have error state (visible red X with error message) but it's not in "not_supported" state and internal event also is not generated in such case.

      The reason is that function lld_process_discovery_rule(), after processing JSON data, can only switch from not_supported to supported, but not vice versa.

      So far 2 use cases discovered when it may happen:

      • Value should be a JSON object.
      • Cannot create item: item with the same key "key[eth1]" already exists.

      I'm not sure is this done (to not switch to not_supported) for intention or it's just a missed point, but I believe that LLD rules have to be switched to not_supported unconditionally if they cannot work for some reason.

      Debug log for different cases see below.

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            Assignee:
            ak Andrejs Kozlovs
            Reporter:
            zalex_ua Oleksii Zagorskyi
            Votes:
            3 Vote for this issue
            Watchers:
            9 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved: