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From "Robert Muir (JIRA)" <>
Subject [jira] Commented: (LUCENE-2907) termsenum bug when running with multithreaded search
Date Sun, 06 Feb 2011 09:45:30 GMT


Robert Muir commented on LUCENE-2907:

bq. Have you found out what happens or where a thread-safety issue could be?

Yes, i found the bug... unfortunately it is actually my automaton problem :(
I will create a nice patch today.

bq. The information on this issue is too small, there seems to be lots of IRC/GTalk communication
in parallel.

what do you mean? mike was working a long time on the bug, but quickly had to stop working
on it, so he emailed me all of his state. I took over from there for a while, and i opened
this issue with my debugging... though I didn't have much time to work on it yesterday (only
like 1 hour), because I already had plans.

I tried to be completely open and dump all of my state/debugging information/brainstorming
on this JIRA issue, but it only resulted in me reporting misleading and confusing information...
so I think the information on this issue is actually too much?

> termsenum bug when running with multithreaded search
> ----------------------------------------------------
>                 Key: LUCENE-2907
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: Robert Muir
>         Attachments: LUCENE-2907_repro.patch, correct_seeks.txt, incorrect_seeks.txt,
> This one popped in hudson (with a test that runs the same query against fieldcache, and
with a filter rewrite, and compares results)
> However, its actually worse and unrelated to the fieldcache: you can set both to filter
rewrite and it will still fail.

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