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Incidents/2022-05-31 Analytics Data Lake - Hadoop Namenode failure: Revision history

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16 June 2022

15 June 2022

1 June 2022

31 May 2022

  • curprev 19:1019:10, 31 May 2022imported>Ottomata 4,344 bytes +4,344 Created page with "{{irdoc|status=draft}} ==Summary== {{Incident scorecard | task =T309649 | paged-num =3 | responders-num =4 | coordinators =Andrew Otto | start =2022-05-31T17:09:10 | end = |impact=Hadoop NameNodes failed, causing all writes and reads to HDFS to fail}} <!-- Reminder: No private information on this page! --> * At Tue May 31 17:09:10 UTC 2022 analytics-alerts@wikimedia.org received an email alert: "At least one Hadoop HDFS NameNode is active is CRITICAL" * Otto, Btul..."