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Posted to derby-dev@db.apache.org by "Roland Beuker (JIRA)" <de...@db.apache.org> on 2005/05/04 10:38:10 UTC
[jira] Created: (DERBY-260) Derby is not stable on multiprocessor or Hyperthreating architectures.
Derby is not stable on multiprocessor or Hyperthreating architectures.
----------------------------------------------------------------------
Key: DERBY-260
URL: http://issues.apache.org/jira/browse/DERBY-260
Project: Derby
Type: Bug
Environment: P4 3GHz with Hyperthreating, 512 Mb, WIN2000
Reporter: Roland Beuker
Hello,
I am using IBM Cloudscape Version 10.0 with Hibernate and it works great. But at the time I was deploying my project on a target with a Hyperthreating CPU things went wrong (database very unstable). It seems that Cloudscape is not functioning on multiprocessor or Hyperthreating architectures. Has anyone some more information?
Regards,
Roland Beuker
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[jira] Commented: (DERBY-260) Derby is not stable on multiprocessor or Hyperthreating architectures.
Posted by "Roland Beuker (JIRA)" <de...@db.apache.org>.
[ http://issues.apache.org/jira/browse/DERBY-260?page=comments#action_64998 ]
Roland Beuker commented on DERBY-260:
-------------------------------------
Hello Sunitha,
I am arranging a Hyperthreating or Multiprocessor target to do some tests (the initial target was from one of our customers...). I also got a reaction from developerworks:
http://www-128.ibm.com/developerworks/forums/dw_thread.jsp?forum=370&thread=80481
Both your and their reaction is that Cloudscape/Derby should work on a multi-processor target. This could mean a problem with Hibernate instead of the Java database. At this moment I don't have any specific details next to the fact that databases get/set statements where not working right when Hyperthreating was enabled on the target platform. The problem disappeared when I switched of Hyperthreating in the bios from the target platform.
Regards,
Roland Beuker
> Derby is not stable on multiprocessor or Hyperthreating architectures.
> ----------------------------------------------------------------------
>
> Key: DERBY-260
> URL: http://issues.apache.org/jira/browse/DERBY-260
> Project: Derby
> Type: Bug
> Environment: P4 3GHz with Hyperthreating, 512 Mb, WIN2000
> Reporter: Roland Beuker
>
> Hello,
> I am using IBM Cloudscape Version 10.0 with Hibernate and it works great. But at the time I was deploying my project on a target with a Hyperthreating CPU things went wrong (database very unstable). It seems that Cloudscape is not functioning on multiprocessor or Hyperthreating architectures. Has anyone some more information?
> Regards,
> Roland Beuker
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[jira] Closed: (DERBY-260) Derby is not stable on multiprocessor or Hyperthreating architectures.
Posted by "Andrew McIntyre (JIRA)" <de...@db.apache.org>.
[ http://issues.apache.org/jira/browse/DERBY-260?page=all ]
Andrew McIntyre closed DERBY-260:
---------------------------------
Resolution: Cannot Reproduce
I've run the full set of functional tests on 2- and 4-way boxes on different architectures, as well as on hyperthreaded Intel procs running several different OS/JVM combos, all with no problems encountered. Closing this bug as invalid since no further information was provided.
> Derby is not stable on multiprocessor or Hyperthreating architectures.
> ----------------------------------------------------------------------
>
> Key: DERBY-260
> URL: http://issues.apache.org/jira/browse/DERBY-260
> Project: Derby
> Type: Bug
> Environment: P4 3GHz with Hyperthreating, 512 Mb, WIN2000
> Reporter: Roland Beuker
>
> Hello,
> I am using IBM Cloudscape Version 10.0 with Hibernate and it works great. But at the time I was deploying my project on a target with a Hyperthreating CPU things went wrong (database very unstable). It seems that Cloudscape is not functioning on multiprocessor or Hyperthreating architectures. Has anyone some more information?
> Regards,
> Roland Beuker
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Re: [jira] Commented: (DERBY-260) Derby is not stable on multiprocessor
or Hyperthreating architectures.
Posted by Mike Matrigali <mi...@sbcglobal.net>.
I also would like to see more information on this. I have been running
the full set of tests on a 2 processor windows 2000 machine for the last
5 years or so. The machine is slow by today's standards (700 mhz
processors), but I don't know of any outstanding database server issues
due to multiprocessor.
Sunitha Kambhampati (JIRA) wrote:
> [ http://issues.apache.org/jira/browse/DERBY-260?page=comments#action_64651 ]
>
> Sunitha Kambhampati commented on DERBY-260:
> -------------------------------------------
>
> I have run some simple tests on a 1cpu (linux machine) with hyperthreading enabled and once on a 2cpu (Intel Xeon) win2k machine with hyperthreading enabled and it worked fine.
>
> Can you provide more details on what issues you noticed. That would really help to resolve this issue.
>
>
>>Derby is not stable on multiprocessor or Hyperthreating architectures.
>>----------------------------------------------------------------------
>>
>> Key: DERBY-260
>> URL: http://issues.apache.org/jira/browse/DERBY-260
>> Project: Derby
>> Type: Bug
>> Environment: P4 3GHz with Hyperthreating, 512 Mb, WIN2000
>> Reporter: Roland Beuker
>
>
>>Hello,
>>I am using IBM Cloudscape Version 10.0 with Hibernate and it works great. But at the time I was deploying my project on a target with a Hyperthreating CPU things went wrong (database very unstable). It seems that Cloudscape is not functioning on multiprocessor or Hyperthreating architectures. Has anyone some more information?
>>Regards,
>>Roland Beuker
>
>
[jira] Commented: (DERBY-260) Derby is not stable on multiprocessor or Hyperthreating architectures.
Posted by "Sunitha Kambhampati (JIRA)" <de...@db.apache.org>.
[ http://issues.apache.org/jira/browse/DERBY-260?page=comments#action_64651 ]
Sunitha Kambhampati commented on DERBY-260:
-------------------------------------------
I have run some simple tests on a 1cpu (linux machine) with hyperthreading enabled and once on a 2cpu (Intel Xeon) win2k machine with hyperthreading enabled and it worked fine.
Can you provide more details on what issues you noticed. That would really help to resolve this issue.
> Derby is not stable on multiprocessor or Hyperthreating architectures.
> ----------------------------------------------------------------------
>
> Key: DERBY-260
> URL: http://issues.apache.org/jira/browse/DERBY-260
> Project: Derby
> Type: Bug
> Environment: P4 3GHz with Hyperthreating, 512 Mb, WIN2000
> Reporter: Roland Beuker
>
> Hello,
> I am using IBM Cloudscape Version 10.0 with Hibernate and it works great. But at the time I was deploying my project on a target with a Hyperthreating CPU things went wrong (database very unstable). It seems that Cloudscape is not functioning on multiprocessor or Hyperthreating architectures. Has anyone some more information?
> Regards,
> Roland Beuker
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[jira] Commented: (DERBY-260) Derby is not stable on multiprocessor or Hyperthreating architectures.
Posted by "Mike Matrigali (JIRA)" <de...@db.apache.org>.
[ http://issues.apache.org/jira/browse/DERBY-260?page=comments#action_12318943 ]
Mike Matrigali commented on DERBY-260:
--------------------------------------
Roland did you ever get any more information about this. Should we close this as not a derby issue, or at least not reproducible?
> Derby is not stable on multiprocessor or Hyperthreating architectures.
> ----------------------------------------------------------------------
>
> Key: DERBY-260
> URL: http://issues.apache.org/jira/browse/DERBY-260
> Project: Derby
> Type: Bug
> Environment: P4 3GHz with Hyperthreating, 512 Mb, WIN2000
> Reporter: Roland Beuker
>
> Hello,
> I am using IBM Cloudscape Version 10.0 with Hibernate and it works great. But at the time I was deploying my project on a target with a Hyperthreating CPU things went wrong (database very unstable). It seems that Cloudscape is not functioning on multiprocessor or Hyperthreating architectures. Has anyone some more information?
> Regards,
> Roland Beuker
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