Thanks Doug & Sanjit, keep on going :)

--Gordon

On Sat, Mar 19, 2011 at 2:11 AM, Naveen Koorakula
<[email protected]>wrote:

> Thank you Doug, for the hard work!
>
> --Naveen
> founder & ceo, campfire labs. 415 425 5412. We're hiring!
> http://www.campfirelabs.com/jobs
>
>
>
> On Fri, Mar 18, 2011 at 6:10 PM, Doug Judd <[email protected]> wrote:
>
>> We've found part of the problem.  In an attempt to fix a RangeServer
>> shutdown hang problem, I made a change to the CommitLog destructor to close
>> the commit log fragment asynchronously.  This introduced a race condition
>> since the CommitLog class is also used for the split log and under certain
>> conditions, the log would be read by the receiving range server _before_ the
>> asynchronous close operation completed.  The split log would appear to be
>> empty, even though it contained valid commits, which caused all of those
>> commits to disappear.
>>
>> Unfortunately, we've also noticed a similar symptom (though much more
>> infrequently), in a prior commit.  We've built tools to diagnose the problem
>> and we're running tests this weekend.  We should have some more results by
>> Monday.  My apologies to those of you who have been waiting on this release.
>>  We're on this 100% and are doing everything we can to get to the bottom of
>> it as soon as possible.
>>
>> - Doug
>>
>> On Tue, Mar 15, 2011 at 10:10 AM, Doug Judd <[email protected]> wrote:
>>
>>> This is an update on the status of the 0.9.5.0 pre-release.  This release
>>> is aimed at fixing the stability problems that have been reported under
>>> certain scenarios.  It has involved some major code changes, including a
>>> re-write of the client scanner logic and a complete overhaul of the master.
>>>  We're essentially "code complete" on the release, but a showstopper bug
>>> (data loss) turned up in our final testing.  We're in the process of
>>> isolating the commit that introduced the bug, but it's slow going, taking
>>> about 2-4 hours to reproduce.  We'll keep you updated on our progress.
>>>
>>> - Doug
>>>
>>>
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-- 
Gordon Rios -- Scalable Intelligence & FactLink
http://www.linkedin.com/in/gordonrios

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