A Red Hat Enterprise Linux 6.3+ NFS client may overwhelm an NFS server with RPC requests
Issue
- Red Hat Enterprise Linux 6.3+ NFS client may overwhelm an NFS server with RPC requests.
- NFS client with heavy IO workload experiencing hung task timeouts or slow NFS performance
- NFS client experiencing periodic nfs: server XYZ not responding messages, followed by "nfs: server XYZ OK" messages.
Environment
- Red Hat Enterprise Linux 6.3 (kernel-2.6.32-279.el6) and higher
- NFS Client
- If there is a load balancer in front of the NFS server, it may contribute to this scenario
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