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Mamta A. Satoor commented on DERBY-2991:
Knut, thanks for looking at the stack trac
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Knut Anders Hatlen commented on DERBY-2991:
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Yes, that test was added here. It re
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Mamta A. Satoor commented on DERBY-2991:
I recently merged changes for DERBY-3926 i
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Myrna van Lunteren commented on DERBY-2991:
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Can this isssue be closed as fixed i
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Knut Anders Hatlen commented on DERBY-2991:
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I would feel more comfortable with c
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Knut Anders Hatlen commented on DERBY-2991:
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I've been trying to write test cases
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Knut Anders Hatlen commented on DERBY-2991:
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Thanks Mike. I agree that this chang
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Knut Anders Hatlen commented on DERBY-2991:
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Thanks for your comments, Bryan. I a
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Bryan Pendleton commented on DERBY-2991:
I think your performance testing has been
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Knut Anders Hatlen commented on DERBY-2991:
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I've tried to find out which effect
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Knut Anders Hatlen commented on DERBY-2991:
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Had the tests with bulk-fetch disabl
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Knut Anders Hatlen commented on DERBY-2991:
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There must be something wrong with t
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Knut Anders Hatlen commented on DERBY-2991:
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Thinking more about it, copying the
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Knut Anders Hatlen commented on DERBY-2991:
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Thanks for clarifying the comments a
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Knut Anders Hatlen commented on DERBY-2991:
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I have taken another look at the pre
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Knut Anders Hatlen commented on DERBY-2991:
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In BTreeForwardScan.fetchRows() we h
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Knut Anders Hatlen commented on DERBY-2991:
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Here are the results from running th
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Knut Anders Hatlen commented on DERBY-2991:
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I checked in the performance test wi
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Knut Anders Hatlen commented on DERBY-2991:
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Thanks for your comments, Mike.
> I
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Knut Anders Hatlen commented on DERBY-2991:
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I had the JUnit test running repeate
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Knut Anders Hatlen commented on DERBY-2991:
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Thanks to all of you for looking at
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Kathey Marsden commented on DERBY-2991:
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Thanks Knut for working on this issue. I kn
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Knut Anders Hatlen commented on DERBY-2991:
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I agree that the overhead would be a
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Bryan Pendleton commented on DERBY-2991:
Thanks for running the performance tests.
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Jeff Stuckman commented on DERBY-2991:
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I'm also affected by this issue, and I'd like
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Knut Anders Hatlen commented on DERBY-2991:
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We already have code to save the pos
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Knut Anders Hatlen commented on DERBY-2991:
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It looks like READ_UNCOMMITTED trans
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Knut Anders Hatlen commented on DERBY-2991:
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I'm hoping to find some time to inve
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Tomohito Nakayama commented on DERBY-2991:
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I think code would be like this.
I think we also need to see con
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Tomohito Nakayama commented on DERBY-2991:
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I read current code (and Knuts comment) that shared lock is gott
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Tomohito Nakayama commented on DERBY-2991:
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I found there exists confusion yet...
>long savedVersion =
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Tomohito Nakayama commented on DERBY-2991:
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Oh I understand.
Taking removal of page cache as need for renavi
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Tomohito Nakayama commented on DERBY-2991:
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I think lastRowMove is needed to be instance variable of page ca
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Øystein Grøvlen commented on DERBY-2991:
Knut Anders Hatlen (JIRA) wrote:
> Then we only renavigate when a r
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Knut Anders Hatlen commented on DERBY-2991:
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Could we then have a variable which contains the last page ver
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Øystein Grøvlen commented on DERBY-2991:
I think pageVersion is bumped on all (logged) changes to the page.
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Tomohito Nakayama commented on DERBY-2991:
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I found methods of StoredPage, which update contents of page, ca
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Knut Anders Hatlen commented on DERBY-2991:
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The page is not removed from the page cache when it is unlatch
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Tomohito Nakayama commented on DERBY-2991:
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> One need to consider whether this state id is something that n
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Tomohito Nakayama commented on DERBY-2991:
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I found what I was confused ...
Lock for scanning index is held
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Tomohito Nakayama commented on DERBY-2991:
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I might be bound by idea of lock for scanning index ...
My conce
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Øystein Grøvlen commented on DERBY-2991:
See the analysis made by Knut Anders above (17/Aug/07). This is a d
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Kurt Huwig commented on DERBY-2991:
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Sorry for the noise, but my application even gets the deadlock with
Connectio
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Tomohito Nakayama commented on DERBY-2991:
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My recognition for this issue is that
Derby uses locks for tabl
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Kristian Waagan commented on DERBY-2991:
As a data point for Kurts last comment/question, I don't think acces
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Tomohito Nakayama commented on DERBY-2991:
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Well
I set transaction isolation level of both select and i
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Kurt Huwig commented on DERBY-2991:
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I Tomohito,
in my application, every insert is done on its own and the isolat
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Tomohito Nakayama commented on DERBY-2991:
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Hello.
Reading the code of Repro program,
I found the situatio
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Bogdan Calmac commented on DERBY-2991:
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The first thread
(http://www.nabble.com/lock-escalation-and-deadlocks-t
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John H. Embretsen commented on DERBY-2991:
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Related mailing list threads on derby-user, primo August 2007:
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Kurt Huwig commented on DERBY-2991:
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I've got the same problem nearly every day in my application, therefore I
sim
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Knut Anders Hatlen commented on DERBY-2991:
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> - Trying to break the circular locking above, I would first
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John H. Embretsen commented on DERBY-2991:
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This is an interesting case which reminds me (but is different f
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