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FlexCache送信元ボリュームがハングし、非常に高いレイテンシで応答しなくなる

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Category:
ontap-9
Specialty:
perf<a>2009671306</a><a>翻訳</a>
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環境

  • ONTAP 9
  • FlexCache

問題

  • FlexCacheオリジンクラスタのレイテンシが急に最大1秒または2秒になりました。
  • また、読み取り/書き込みキャッシュのcluserボリュームにも対応します。
  • クラスタがハングし、数分間応答を停止しているように見えます。
  • 問題はすぐに回復します。
  • イベントログ(EMS)には次のエラーも表示されます。
    • Tue Jul 25 17:49:59 -0400 [node2: CSM BTLS: csm.createSessionFailed:debug]:
      Cluster Session Manager (CSM) failed to create session
      (req=cache-cluster-02:dblade, rsp=node2:dblade, uniquifier=1234567890abcdef) with transport type CT,
      session tag FLEXCACHE_OP_FORWARD, record state ACTIVE, CSM error CSM_CONNABORTED, low-level error UNKNOWN,
      socket error 0, and TLS error 0.

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