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HOW TO GENERATE SYSTEMSTATE ON THE CELLSRV TO IDENTIFY MEMORY LEAKS (Doc ID 981902.1)

Last updated on FEBRUARY 07, 2020

Applies to:

Oracle Exadata Storage Server Software - Version 11.1.0.3.0 and later
Oracle Exadata Hardware - Version 11.1.0.7 and later
Information in this document applies to any platform.

Purpose

The procedure described on this document can be used to diagnose problems related to high memory usage reported on the storage cells, specifically by cellsrv process.

Symptoms of cellsrv process using high memory include:

* cellsrv failing with error RS-7445 CELLSRV HUNG  reported in the alert.log of the storage cell.
* Reviewing OSW reports, it is observed that cellsrv process has very high values for virtual memory
* Revieiwng OSW reports, it is observed that system is running out of free memory/swap
* Reviewing OSW reports, it is observed that  system is running with 0% idle of CPU

The systemstate of cellsrv will dump the current memory structures which should help to identify the cause of the high memory usage.

Troubleshooting Steps

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