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IDProjectCategoryView StatusLast Update
0015759CentOS-7nfs-utilspublic2019-01-29 21:24
ReporterRaghunandan Bodduluru 
PrioritynormalSeverityminorReproducibilitysometimes
Status newResolutionopen 
Product Version7.5.1804 
Target VersionFixed in Version 
Summary0015759: NFS
DescriptionWe are seeing NFS v4 Lock reclaim failed errors in /var/log/messages and when ever we see this, we are seeing our application gets into hung state and crashes.

kernel: NFS: nfs4_reclaim_open_state: Lock reclaim failed!
kernel: NFS: nfs4_reclaim_open_state: Lock reclaim failed!

We are using CentOS Linux release 7.5.1804 (Core) and Kernel 3.10.0-862.14.4.el7.x86_64.

We modified the fstab entries for nfs mount to below after browsing the web. We added sync and noresvport:

nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,sync,noresvport 0 0

The NFS is Amazon EFS service and they say that there are no issues found at their end.

Could you please let us know why the Lock reclaim failed errors are seen and how to resolve this issue?
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tigalch

tigalch

2019-01-29 21:24

manager   ~0033725

First - please update to the current version of CentOS - 7.5 and its kernels are no longer current. 7.6 is. Today there has also been a kernel update (.5.1) so you might want to wait until that is released - so only one reboot needed. Please retry afterwards.

Issue History

Date Modified Username Field Change
2019-01-29 21:21 Raghunandan Bodduluru New Issue
2019-01-29 21:24 tigalch Note Added: 0033725