cellsrv hang while running cellcli -e list flashcachecontent (Doc ID 2250497.1)

Last updated on APRIL 10, 2017

Applies to:

Oracle Exadata Storage Server Software - Version 11.2.1.2.4 and later
Information in this document applies to any platform.

Symptoms

 

Running cellcli -e list flashcachecontent can cause cellsrv to hang.

The cellsrv process will then be restarted automatically.

Cell alert log will show following:

RS-7445 [Serv CELLSRV hang detected] [It will be restarted]

 

svtrc_xxx.trc may show high number of mutex waits like following:

status: 2 waitstateName: waiting_for_mutex

 

Total summary of waits with Hangman - Analyzer shows summary

Thread wait state breakdown:
 2 polling_sendports
 4 waiting_for_cond_var
 4 FlashLogStoreCheckpoint
 1 waiting_for_connect
 76 waiting_for_mutex  <<=========
 72 CachePut
 4 CacheGet

 

Cause

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