RAC Database Using Infiniband RDS Protocol Shows Network Errors And ORA-27504 (Doc ID 749520.1)

Last updated on JULY 12, 2012

Applies to:

Oracle Server - Enterprise Edition - Version 11.1.0.6 to 11.1.0.7 [Release 11.1]
Linux x86-64

Symptoms

1.) Occurs only when RDS infiniband is used. 
2.) One instance may evict based on load. 
3.) Sometimes after lmon reports ORA-29740: evicted by member, there are 
"IPC send timeout" errors involving different processes including lms, lmd, 
lgwr and smon processes. 

4.) The other instance may die because lmd dies with
ORA-00600 [kjmscndscq:timeout] error.
5.) The following errors may also be present in the stack: 
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2

Cause

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