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ストレージレプリケーションアダプタ:SyncOnce操作が「read timed out」API呼び出しにより失敗する

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Category:
ontap-storage-replication-adapter
Specialty:
virt
Last Updated:

環境

  • ONTAPストレージレプリケーションアダプタ

問題

ストレージレプリケーションアダプタ(SRA)はSyncOnce  操作を使用して、保護対象ボリュームのSnapMirrorアップデートを実行します。  SyncOnce操作は、以下のSRMワークフローでトリガーされます:

  • テストフェイルオーバー
  • 計画的な移行

多数の SnapMirror 関係が存在する環境では、次のような問題が発生する場合があります:

  • SyncOnce 操作が「Unknown」エラーで失敗します。  このエラーのエラーコードは 4001 です
  • vvolvp.log で操作を確認すると:
    • SnapMirrorの更新は実際には成功する可能性があります:
      • 2023-07-06T00:39:30,352Z (DEBUG)[pool-3-thread-1] [] updateSnapMirror:
        2023-07-06T00:39:30,352Z (DEBUG)[pool-3-thread-1] [] Sending-1861: <snapmirror-update><destination-location>volume</destination-location><source-location>volume</source-location></snapmirror-update>
        2023-07-06T00:39:30,739Z (DEBUG)[queue-manager] [task-manager-queue-manager] Task 10074301 is in state Running
        2023-07-06T00:39:31,135Z (DEBUG)[pool-3-thread-1] [] Received-1861: <results status='passed'><result-operation-id>12345</result-operation-id><result-status>succeeded</result-status></results>
        2023-07-06T00:39:31,135Z (DEBUG)[pool-3-thread-1] [] SnapMirror update started for cluster:volume
        2023-07-06T00:39:31,135Z (DEBUG)[pool-3-thread-1] [] SnapMirror update returned status succeeded
    • ただし、SnapMirrorアップデートに続く snapmirror-get-iter API呼び出しがタイムアウトします:
      • 2023-07-06T00:39:31,635Z (DEBUG)[pool-3-thread-1] [] Sending-1862:<snapmirror-get-iter><max-records>500</max-records><query><snapmirror-info><relationship-group-type>none</relationship-group-type></snapmirror-info></query></snapmirror-get-iter>
        ..
        2023-07-06T00:39:49,094Z (WARN )[pool-3-thread-1] [] invokeZAPI(0): failed OntapConnectionImpl{ipAddress=host.domain, userName=user, port=443, ssl=true} (IOException): Read timed out null
        2023-07-06T00:39:49,094Z (DEBUG)[pool-3-thread-1] [] slow-zapi-1862 redacted.domain: 17654 ms
        2023-07-06T00:39:49,095Z (ERROR)[pool-3-thread-1] [] com.netapp.offtap3.ontap.SvmOperationException: Could not get snapmirror-get-iter for com.netapp.offtap3.internal.ontap.VServerConnection@12345
        ..
        2023-07-06T00:39:49,095Z (ERROR)[pool-3-thread-1] [] Caused by: com.netapp.offtap3.ontap.ApiFailedException: Read timed out (errno=5)

 

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