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  1. OpenShift Logging
  2. LOG-5437

Unhealthy ingesters not leaving the hash ring

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    • Icon: Bug Bug
    • Resolution: Not a Bug
    • Icon: Critical Critical
    • None
    • Logging 5.8.4, Logging 5.8.5, Logging 5.9.0
    • Log Storage, Loki
    • False
    • None
    • False
    • NEW
    • NEW
    • Bug Fix
    • Moderate

      Description of problem:

      Unhealthy ingesters are not leaving the hash ring. When replication_factor is set to 2, and an unhealthy member is selected, causing log forwarding to fail.
       

      $ oc exec -n openshift-logging logging-loki-ingester-0 -- curl -k --cert /var/run/tls/http/server/tls.crt --key /var/run/tls/http/server/tls.key  https://localhost:3100/ring -H "Accept: application/json" | jq | grep -B1 state
        % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                       Dload  Upload   Total   Spent    Left  Speed
      100 17117    0 17117    0     0   491k      0 --:--:-- --:--:-- --:--:--  491k
            "id": "logging-loki-ingester-0",
            "state": "ACTIVE",
      --
            "id": "logging-loki-ingester-1",
            "state": "ACTIVE",
      --
            "id": "logging-loki-ingester-2",
            "state": "UNHEALTHY",

      Version-Release number of selected component (if applicable):

      Logging 5.8.4, 5.8.5, 5.9.0

      How reproducible:

      Always

      Steps to Reproduce:

      1. Install OpenShift Logging with LokiStack
      2. Shut down the node where ingester is deployed
      3. Confirm if logs are being collected in the web console

      Actual results:

      Unhealthy ingesters are leaving the hash ring

      Expected results:

      Unhealthy ingestors continue to remain in the hash ring

      Additional info:

      The following issue could be related:
      https://github.com/grafana/loki/issues/8615

              rhn-support-ocasalsa Oscar Casal Sanchez
              rhn-support-shishika Shinri Ishikawa
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                Created:
                Updated:
                Resolved: