Failure Deleting Lock File After Unlock in SystemPageCache Folder

(Doc ID 1501756.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle WebCenter Sites - Version 7.5.0 to 7.6.0 [Release FatWire]
Information in this document applies to any platform.

Symptoms

Noticing the following error repeatedly in the logs: 

[CS.FILELOCK][WARN] Failed to delete lock file in NioFileLock for [/<Shared_Dir>/SystemPageCache/XXXX/XXXX/XXXXXX/248/829/1251255521568.hdr.ftlock]. Attempting a total of 400 times, waiting 25ms between attempts. This failure occurred on attempt number 388.
 [CS.FILELOCK][ERROR] Unexpected failure unlocking file
COM.FutureTense.Util.a$_A: Unexpected failure deleting lock file after unlock [File: /<Shared_Dir>/SystemPageCache/XXXXX/XXXXX/XXXXXXX/248/829/1251255521568.hdr.ftlock]
at COM.FutureTense.Util.a$_B.D(y:301)
at COM.FutureTense.Util.a$_B.B(y:2737)
at COM.FutureTense.Util.a$_B.A(y:2797)
at COM.FutureTense.Util.a.C(y:1126)
at COM.FutureTense.Util.a.lockFile(y:3471)
at COM.FutureTense.Util.ftFileLock.lockFileName(y:2917)
at COM.FutureTense.Common.f.E(y:1192)
at COM.FutureTense.Common.f.clearFilesFromList(y:3376)
at COM.FutureTense.Cache.N$4.execute(y:570)
at com.fatwire.cs.core.db.NestedTransactionBlock._executeEvents(y:2601)
..........

 How to resolve the issue?

Changes

 This issue occurs when using the traditional caching mechanism and not when using the inCache caching mechanism.

Cause

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