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AIQUMのEMSイベント処理との同時実行数の競合によりクラスタのポーリングが停止する

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active-iq-unified-manager
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om
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環境

  • Active IQ Unified Manager(AIQUM)9.x
  • ONTAP clustered Data ONTAP

問題

  • Active IQ Unified Manager(AIQUM)でのクラスタポーリングが断続的に停止するため、クラスタの健全性の更新に失敗したり、重要なアラートが失われたりします。
  • ポーリングがUIでスタックしたと表示され、後続のポーリングはスキップまたはドロップされます。
観察されたログ出力:
ERROR [oncommand][reconciliation-0][c.n.dfm.collector.OcieJmsListener] Previous foundation poll at <timestamp> ongoing for ds=<id>(<cluster>), adding to the dropped JmsDataSources list
...
org.springframework.orm.hibernate5.HibernateOptimisticLockingFailureException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1; statement executed: update Cluster set healthStatus=? where id=? and healthStatus=?; nested exception is org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1; statement executed: update Cluster set healthStatus=? where id=? and healthStatus=?
...
INFO [oncommand][SyslogServer:udp][c.n.dfm.impl.ems.SysLogEventHandler] Received EMS from: [[<cluster>:cpeer.unavailable:ALERT]:]

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