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  1. OpenShift Logging
  2. LOG-5288

Loki performance issues and timeouts

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    • Icon: Bug Bug
    • Resolution: Not a Bug
    • Icon: Undefined Undefined
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    • Log Storage
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    • NEW
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    • Bug Fix

      • Loki queries reacting very slowly or timing out (30000ms)
      • Set longer timeout on visualization but issue persists; including "Context deadline exceeded" (which is another form of timeout)
      • total log data does not seem to be a factor here; we are quite below the tested size limits, and read actions that should be instantaneous (like the container dropdown box) are taking seconds or even timing out
      • we tried querying directly with LogCLI on commandline and saw intermittent connection refused, which could possibly cause the issue if the Loki components themselves are also experiencing intermittent connection problems
      • the index gateway fails when local files are present, and doesnt fail without local files. We are considering if this could be a local storage issue
      • After testing we do not suspect storage is the bottleneck
      
      $ date; logcli -o raw --tls-skip-verify --bearer-token="$(oc whoami -t)" --addr "https://logging-loki-openshift-logging.apps.dev.example.com/api/logs/v1/application" labels 'kubernetes_pod_name' | wc -l
      Mon Mar 25 08:41:02 UTC 2024
      2024/03/25 08:41:02 https://logging-loki-openshift-logging.apps.example.com/api/logs/v1/application/loki/api/v1/label/kubernetes_pod_name/values?end=1711356062291259910&start=1711352462291259910
      
      4960
       $ date; oc get namespaces | wc -lMon Mar 25 08:41:31 UTC 2024
      527
      $ date; oc get pods --all-namespaces | wc -l
      Mon Mar 25 08:41:56 UTC 2024
      3041
      
      

              Unassigned Unassigned
              rhn-support-stwalter Steven Walter
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                Created:
                Updated:
                Resolved: