由于索引节点缓存缩减， NFS 断开连接

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Category:: ontap-9

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适用场景

ONTAP 9.7P9
NFSv3

问题描述

load_inode_no_wips 上的高暂停
Nblade.nfsLongRunningOp EMS 日志中可能存在消息：

Sun Jul 18 21:11:49 +0200 [Cluster-02: kernel: Nblade.nfsLongRunningOp:debug]: Detected a long running network process operation. The client IP address:port is XXX.XXX.XXX.XXX:844. The local IP address:port is XXX.XXX.XXX.XXX:2049. The protocol requesting the operation is NFS3. The RPC Program Number for the operation is 100003. The RPC Procedure Number for the operation is 4. The disk process UUID is 53d962e8f59a11e9a00700a098ef419e. The Vserver identifier is 11.

NFS 客户端可能会显示：

Jul 18 19:18:14 client03 kernel: nfs: server XXX.16.230.71 not responding, still trying

wafl.inode.cache.highLoad EMS 日志中可能会显示消息：

Wed Aug 25 05:55:07 +0200 [wspfas9krm-01: wafl_exempt00: wafl.inode.cache.highLoad:info]:

Wed Aug 25 05:55:07 +0200 [wspfas9krm-01: wafl_exempt00: ems.engine.suppressed:debug]: Event 'wafl.inode.cache.highLoad' suppressed 101 times in last 115163 seconds.

df 存储系统中的命令可能需要很长时间才能完成