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Date: Mon, 10 Oct 2011 12:56:45 -0700
From: Rick Hillegas <rick.hillegas@oracle.com>
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To: derby-dev@db.apache.org
Subject: Re: 10.8.2.2 coming up
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On 10/10/11 12:07 PM, Myrna van Lunteren wrote:
> On Mon, Oct 10, 2011 at 1:01 AM, Kristian Waagan
> <kristian.waagan@oracle.com>  wrote:
>> On 08.10.11 03:31, Myrna van Lunteren wrote:
>>> On Fri, Oct 7, 2011 at 2:10 AM, Kristian Waagan
>>> <kristian.waagan@oracle.com>    wrote:
>>>> Den 07.10.2011 00:36, skrev Myrna van Lunteren:
>> <  snip>
>>
>>>>> Any issues anyone is working on backporting?
>>>> Hi  Myrna,
>>>>
>>>> I'm working on DERBY-5447, which is a Java deadlock involving the
>>>> automatic
>>>> index statistics daemon. It causes two threads to hang indefinitely.
>>>> I have two patches, one ran for 1099 iterations of the hanging test suite
>>>> without hitting the problem, the other is currently at 879 iterations
>>>> (each
>>>> iteration takes 60 - 90 seconds). Without the fix(es) the test ususally
>>>> hangs after 9 to 30 iterations.
>>>>
>>>> The good news is that the second patch is an isolated change to the istat
>>>> daemon itself, instead of modifying the core code in
>>>> BasePage.releaseExclusive. I wouldn't be afraid to port this to 10.8
>>>> immediately after the fix goes into trunk.
>>>>
>>>> I don't want you to hold back the release because of this issue (as
>>>> several
>>>> factors have to come into play to trigger it), but it would be good to
>>>> know
>>>> when you plan to produce the next release candidate.
>>>>
>>>>
>>>> Regards, and thank you for your continued efforts for a solid 10.8.2,
>>>> --
>>>> Kristian
>>>>
>>>>> Regards,
>>>>> Myrna
>>>>
>>> I really wanted to make a release candidate on Monday, but I think
>>> it's not useful while we're analyzing various error conditions after
>>> Rick's backing out work for DERBY-5448.
>>> So, at this point, I don't think I'll make a release candidate on
>>> Monday. Let's see where we are at the end of Monday.
>> Ok.
>> In any case, I backported DERBY-5447 to 10.8 with revision 1180811.
>>
>>
>> --
>> Kristian
>>
>>> Myrna
>>
> Thank you all for your feedback.
>
> It seems to me that apart from another deadlock situation which Rick
I regard the evidence as inconclusive. So far no one has reproduced the 
identity generator deadlock in 10.8.1. There could still be a regression 
introduced by 10.8.2. We don't understand the problem yet.
> and Mike suspect is pre-existing 10.8.2 and a worrying but likely
> unreproducible error (DERBY-5450) there is nothing more to be done for
> this release.
>
> I'll spin a release candidate now.
>
> Myrna
>