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使用NFSv4时、NFS客户端在接管期间需要大约1分钟来恢复写入

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Category:
ontap-9
Specialty:
nas<a>2009年24月17日</a>
Last Updated:

适用场景

  • ONTAP 9
  • NFSv4和NFSv4.1

问题描述

  • 使用NFSv4时、NFS客户端在接管期间需要大约1分钟才能恢复I/O。
  • 签出事件日志后、接管本身只需几秒钟、但从锁定回收宽限期开始停止起需要45秒、这是I/O停止的主要时间。

示例:

[?] Wed Jul 06 09:32:36 +0800 [node2: cf_takeover: cf.fm.takeoverComplete:notice]: Failover monitor: takeover completed
[?] Wed Jul 06 09:32:36 +0800 [node2: cf_takeover: cf.fm.takeoverDuration:info]: Failover monitor: takeover duration time is 3 seconds.

 

[?] Wed Jul 06 09:32:03 +0800 [node2: lmgr_ng_aggr_grace_worker: lmgr.reclaim.start.grace:debug]: Lock reclaim grace period started on aggregate 'node1_Aggr_Data01' with file system id '651312343'.

[?] Wed Jul 06 09:32:48 +0800 [node2: wafl_exempt01: lmgr.reclaim.stop.grace:debug]: Lock reclaim grace period stopped on aggregate 'node1_Aggr_Data01' with file system id '651312343'.

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