NFS File Lock Issues Caused By Increasing Unused LockStateID Entries In ZFS Storage Appliance In Exalogic (Doc ID 1540532.1)

Last updated on NOVEMBER 30, 2015

Applies to:

Oracle Exalogic Elastic Cloud Software - Version 2.0.0.0.0 to 2.0.3.0.2
Oracle Exalogic Elastic Cloud Software - Version 2.0.4.0.0 to 2.0.4.0.2
Oracle Exalogic Elastic Cloud Software - Version 2.0.1.0.0 to 2.0.1.0.0
Linux x86-64

Symptoms

In following Exalogic releases with NFSv4 shares on Client Linux Compute Nodes mounted on ZFS Storage appliance, intermittent file lock issues are observed when accessing files on NFSv4 shares.

This issue is observed even with all the following recommendations in place:

Due to this, any application process or WebLogic process startup on NFSv4 file system fails with unable to obtain lock exception. Below is a snippet of the WebLogic server log showing failed startup because of file lock issue.

Cause

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