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  1. Couchbase Server
  2. MB-52484

[System Tests]Flooding of the message Align seqno smaller than lastFlushTs seen

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Details

    • Bug
    • Resolution: Unresolved
    • Major
    • Morpheus
    • 7.1.1
    • secondary-index
    • None
    • Untriaged
    • 1
    • Unknown

    Description

      Build 7.1.1-3111
      Test : -test tests/2i/neo/test_neo_idx_clusterops_recovery.yml
      Scale: 1
      Day: 1st and 2nd.

      On 172.23.107.4 , we see a flooding of this message

      /opt/couchbase/var/lib/couchbase/logs/indexer.log.3.gz:2022-06-08T07:44:23.604-07:00 [Info] Timekeeper::ensureMonotonicTs  Align seqno smaller than lastFlushTs. KeyspaceId bucket4 StreamId MAINT_STREAM vbucket 348. CurrentTS: Snapshot 6462-6462 Seqno 6462 Vbuuid 23570400411830. LastFlushTS: Snapshot 6462-6468 Seqno 6468 Vbuuid 23570400411830. HWT [6470-6470, 6470]. LastSnap [6469-6469, 6469].
      /opt/couchbase/var/lib/couchbase/logs/indexer.log.3.gz:2022-06-08T07:44:23.606-07:00 [Info] Timekeeper::ensureMonotonicTs  Align seqno smaller than lastFlushTs. KeyspaceId bucket4 StreamId MAINT_STREAM vbucket 343. CurrentTS: Snapshot 6462-6462 Seqno 6462 Vbuuid 249294778014705. LastFlushTS: Snapshot 6462-6468 Seqno 6468 Vbuuid 249294778014705. HWT [6470-6470, 6470]. LastSnap [6469-6469, 6469].
      /opt/couchbase/var/lib/couchbase/logs/indexer.log.3.gz:2022-06-08T07:44:23.606-07:00 [Info] Timekeeper::ensureMonotonicTs  Align seqno smaller than lastFlushTs. KeyspaceId bucket4 StreamId MAINT_STREAM vbucket 348. CurrentTS: Snapshot 6462-6462 Seqno 6462 Vbuuid 23570400411830. LastFlushTS: Snapshot 6462-6468 Seqno 6468 Vbuuid 23570400411830. HWT [6470-6470, 6470]. LastSnap [6469-6469, 6469].
      

      Spoke to Varun Velamuri and he mentioned that if the DCP stream of a KV replica node is behind the DCP stream of an indexer node, it's possible to see this. But at the time of this log, no KV operations are being run . The Jenkins console can be found here

      http://172.23.109.231/job/component_systest_launcher_3/447/consoleFull

      A similar issue has been raised in the past https://issues.couchbase.com/browse/MB-46318.

      During the run, it looks like the tests were running create indexes in a loop.

      cbcollect logs:

      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.107.3.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.107.4.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.107.5.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.215.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.216.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.217.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.227.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.232.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.235.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.236.zip
      url : https://cb-jira.s3.us-east-2.amazonaws.com/logs/systestmon-1654702305/collectinfo-2022-06-08T153146-ns_1%40172.23.97.237.zip

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            varun.velamuri Varun Velamuri
            pavan.pb Pavan PB
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              Created:
              Updated:

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