SuperCluster: Multiple performance or outage scenarios due to Bug 22506032 - RDS: RDMA Cancel hangs (Doc ID 2224547.1)

Last updated on AUGUST 30, 2017

Applies to:

Oracle SuperCluster Specific Software - Version 1.x to 2.x [Release 1.0 to 2.0]
Oracle Exadata Storage Server Software - Version 12.1.2.1.3 to 12.1.2.3.3 [Release 12.1]
Information in this document applies to any platform.
Applicable to all SuperCluster HW and Software versions

Symptoms

Any of the below items:

Database performance issues relating to cell access

ASM diskgroup dismounts or errors relating to cell access

CRS node eviction

CRS crashes

Combined with:

On one or more Exadata storage  cells :

 

Changes

 Typically triggered by database foreground processes coming close to exhausting available memory in the database logical domain  in which it resides ( even if the DB in question is inside a local zone). It has also been encountered by abnormally terminating a large number of database processes, intentionally.

Cause

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