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XDWK Process is spawned Frequently in ASM with Exadata (Doc ID 1405003.1)

Last updated on JUNE 05, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.2 to 11.2.0.2 [Release 11.2]
Oracle Exadata Hardware - Version 11.2.0.2 to 11.2.0.2 [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

In X2-2 quarter rack with Image version: 11.2.2.2.2.110311,
and Grid and Database HOme as 11.2.0.2 BP 13 ,
ASM spawns XWDK process frequently.

In alert.log of ASM there are lots of entries of XWDK process
being started on node one. On the other node there's hardly anything.

But all Disks in +<ASM_INSTANCE>1 & +<ASM_INSTANCE>2 are in Mount_status=Cached & Mode_status=ONLINE


### Impact on Business ###
Below are messages from alertlog of Asm in Node1:
=================================================
Reconfiguration complete
Wed Feb 01 01:04:05 2012
NOTE: client dssx1:dssx registered, osid 10637, mbr 0x1
Wed Feb 01 01:05:51 2012
Starting background process XDWK
Wed Feb 01 01:05:51 2012
XDWK started with pid=37, OS id=11613
Wed Feb 01 01:20:54 2012
Starting background process XDWK
Wed Feb 01 01:20:54 2012
XDWK started with pid=30, OS id=16880
Wed Feb 01 01:35:57 2012
Starting background process XDWK
Wed Feb 01 01:35:57 2012
XDWK started with pid=34, OS id=22023
Wed Feb 01 01:51:00 2012
Starting background process XDWK


Below are messages from alertlog of Asm in Node2:
=======================================================
Starting background process ASMB
Wed Feb 01 00:57:17 2012
ASMB started with pid=27, OS id=29206
NOTE: Attempting voting file refresh on diskgroup <DISKGROUP_NAME>
Wed Feb 01 00:57:17 2012
NOTE: client +<ASM_INSTANCE>2:+<ASM_INSTANCE> registered, osid 29208, mbr 0x0
WARNING: failed to online diskgroup resource ora.<DISKGROUP_NAME>.dg (unable to communicate with CRSD/OHASD)
WARNING: failed to online diskgroup resource ora.<DISKGROUP_NAME>.dg (unable to communicate with CRSD/OHASD)
WARNING: failed to online diskgroup resource ora.<DISKGROUP_NAME>.dg (unable to communicate with CRSD/OHASD)
Wed Feb 01 00:58:26 2012
ALTER SYSTEM SET local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=XX.XXX.X.XX)(PORT=1521))))' SCOPE=MEMORY SID='+<ASM_INSTANCE>2';
Wed Feb 01 01:05:09 2012
NOTE: client <CLIENT_NAME>:<CLIENT_NAME> registered, osid 595, mbr 0x1

=======================================================

Cause

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