WaitForChildren: Children persisting. Retry

SQLServerCentral is supported by Red Gate Software Ltd.

Popular Topics

Home

Members

Calendar

Who's On

Home » SQL Server 7,2000 » Administration » WaitForChildren: Children persisting. Retry

13 posts, Page 1 of 2

1 2 »»

WaitForChildren: Children persisting. Retry

Rate Topic

Display Mode

Topic Options

Author

Message

Fishbarnriots

Posted Thursday, September 04, 2008 4:27 AM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, June 12, 2013 1:20 AM
Points: 237, Visits: 1,769

Hi,

Seem to have an issue with a rogue spid, details as follows;

Numerous entries in SQL log relating to-

2008-09-04 10:28:13.99 spid123 WaitForChildren: Children persisting. Retry: 68144

SP_who returns details of SPID 123 - Database = Master, status sleeping, not processing in 16 days, wait type = EC

SPID 123 is sleeping and has not done any processing in 16 days

SPID 123 was selecting some data from a temporary table as follows.

select replace(cast(TextData as varchar), 'Deadlock Chain SPID = ', '') FROM #deadlocktrace where textdata like '%Deadlock Chain SPID%' union select SPID FROM #deadlocktrace where textdata like '%Deadlock Cha

Kill 123 results in
Server: Msg 6107, Level 14, State 1, Line 1
Only user processes can be killed.

Implication is that spid 123 is a system process(?) - which it isn't

My questions are, what does WaitForChildren: Children persisting. Retry actually mean? and how can I kill SPID 123?

Any suggestions gratefully received.

Post #563677

ALZDBA

Posted Thursday, September 04, 2008 4:56 AM

SSCertifiable

Group: General Forum Members
Last Login: 2 days ago @ 2:13 PM
Points: 6,866, Visits: 8,071

Please check this bugfix :
http://support.microsoft.com/kb/319184

This hotfix states "This problem was first corrected in Microsoft SQL Server 2000 Service Pack 3"

Which is your sqlsever @@version ?

(maybe it's time to implement sp4)

Johan

     Jul 13

Don't drive faster than your guardian angel can fly ...
but keeping both feet on the ground won't get you anywhere w00t

- How to post Performance Problems
- How to post data/code to get the best help

- How to prevent a sore throat after hours of presenting ppt ?

"press F1 for solution", "press shift+F1 for urgent solution" BigGrin

Need a bit of Powershell? How about this

Who am I ? Sometimes this is me but most of the time this is me Hehe

Post #563684

Fishbarnriots

Posted Thursday, September 04, 2008 9:11 AM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, June 12, 2013 1:20 AM
Points: 237, Visits: 1,769

Thanks for the reply, the server is on SQL sp 4

Post #563900

ALZDBA

Posted Thursday, September 04, 2008 11:48 PM

SSCertifiable

Group: General Forum Members
Last Login: 2 days ago @ 2:13 PM
Points: 6,866, Visits: 8,071

You didn't post the @@version.

This is a sqlserver parallelism issue.

Did you also apply Cumulative HofFix for sp4(build 2187) - SQL2000-KB916287-v8.00.2187 ?

Johan

     Jul 13

Don't drive faster than your guardian angel can fly ...
but keeping both feet on the ground won't get you anywhere w00t

Need a bit of Powershell? How about this

Who am I ? Sometimes this is me but most of the time this is me Hehe

Post #564337

Fishbarnriots

Posted Friday, September 05, 2008 2:07 AM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, June 12, 2013 1:20 AM
Points: 237, Visits: 1,769

As requested

Microsoft SQL Server 2000 - 8.00.2039 (Intel X86)
May 3 2005 23:18:38
Copyright (c) 1988-2003 Microsoft Corporation
Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 4)

Post #564385

ALZDBA

Posted Friday, September 05, 2008 2:23 AM

SSCertifiable

Group: General Forum Members
Last Login: 2 days ago @ 2:13 PM
Points: 6,866, Visits: 8,071

8.00.2039 is the regular SP4

Is this a multi processor or multi core box ?
if yes: IMO your should apply the cumulative hotfix I mentioned earlier.

Johan

     Jul 13

Don't drive faster than your guardian angel can fly ...
but keeping both feet on the ground won't get you anywhere w00t

Need a bit of Powershell? How about this

Who am I ? Sometimes this is me but most of the time this is me Hehe

Post #564390

Fishbarnriots

Posted Friday, September 05, 2008 2:30 AM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, June 12, 2013 1:20 AM
Points: 237, Visits: 1,769

SQL2000-KB916287-v8.00.2187 has not been applied

Post #564396

ALZDBA

Posted Friday, September 05, 2008 3:09 AM

SSCertifiable

Group: General Forum Members
Last Login: 2 days ago @ 2:13 PM
Points: 6,866, Visits: 8,071

are you using AWE ? http://support.microsoft.com/kb/899761

Johan

     Jul 13

Don't drive faster than your guardian angel can fly ...
but keeping both feet on the ground won't get you anywhere w00t

Need a bit of Powershell? How about this

Who am I ? Sometimes this is me but most of the time this is me Hehe

Post #564406

Fishbarnriots

Posted Friday, September 05, 2008 4:00 AM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, June 12, 2013 1:20 AM
Points: 237, Visits: 1,769

Hi,

AWE is not enabled

Post #564424

ALZDBA

Posted Friday, September 05, 2008 4:11 AM

SSCertifiable

Group: General Forum Members
Last Login: 2 days ago @ 2:13 PM
Points: 6,866, Visits: 8,071

Can you apply the workaround (i.e. disable parallelisme) ?
from KB319184

WORKAROUND
To work around this behavior you can either:
• Use the query hint (MAXDOP=1) to avoid a parallel query plan.

-or-

• Set the max degree of parallelism configuration value to 1.

Johan

     Jul 13

Don't drive faster than your guardian angel can fly ...
but keeping both feet on the ground won't get you anywhere w00t

Need a bit of Powershell? How about this

Who am I ? Sometimes this is me but most of the time this is me Hehe

Post #564427

« Prev Topic | Next Topic »

13 posts, Page 1 of 2

1 2 »»

Permissions