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NFSv4.1 クライアントの読み取り / 書き込み操作は、 SVM で pNFS が有効になっているとハングすることがあります

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Category:
ontap-9
Specialty:
nas<a>1087520</a><a>NFSプロセス</a><a>がNFSERR_DELAY</a><a>で停止する</a>
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環境

  • ONTAP 9
  • pNFS が有効な NFSv4.1

問題

  • NFSv4.1 クライアントが pNFS が有効な SVM に対して読み取り / 書き込みを試行すると、処理がハングしたりレイテンシが発生したりすることがあります。
  • 同時に、クライアントは 次の場所にエラーを記録します。  /var/log/messages 

nfs: [LIF address/hostname] server not responding 

130 2019-04-24 14:05:43.899496 0.000129000 0 10.1.1.46 10.1.1.209 NFS 816,2049 248 V4 Call (Reply In 131) LAYOUTGET
131 2019-04-24 14:05:43.899535 0.000039000 0 10.1.1.209 10.1.1.46 NFS 2049,816 248 V4 Reply (Call In 130) LAYOUTGET
132 2019-04-24 14:05:43.899632 0.000097000 0 10.1.1.46 10.1.1.209 NFS 816,2049 176 V4 Call (Reply In 133) GETDEVINFO
133 2019-04-24 14:05:43.899664 0.000032000 0 10.1.1.209 10.1.1.46 NFS 2049,816 152 V4 Reply (Call In 132) GETDEVINFO
Opcode: GETDEVINFO (47)
    r_netid: tcp
        length: 3
        contents: tcp
        fill bytes: opaque data
    r_addr: 10.1.1.208.8.1
        length: 17
       contents: 10.1.1.208.8.1 <<<<< LIF that is local to the node where the volume resides. But this LIF is not reachable from client.

 

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