OID 11g Intermittently Failing with Error: sgsluslLockAquire: Failed to aquire semaphore/mutex os error: 4 (Doc ID 1645326.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle Internet Directory - Version 11.1.1 and later
Information in this document applies to any platform.

Symptoms

Oracle Internet Directory (OID) 11g, e.g. 11.1.1.7, stops intermittently with the following error:

Failed to aquire semaphore/mutex  os error: 4

Once OID server is restarted the issue does not reproduce for some time.

The error frequency depends on the system load.

 

The OID logs show:

 

Also the system is reaching nproc soft limits and number of process limits (e.g. currently set to 2048).

Cause

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