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From Benson Margulies <bimargul...@gmail.com>
Subject Re: Here a merge thread, there a merge thread ...
Date Fri, 24 Feb 2012 18:03:23 GMT
On Fri, Feb 24, 2012 at 10:59 AM, Michael McCandless
<lucene@mikemccandless.com> wrote:
> This is from ConcurrentMergeScheduler (the default MergeScheduler).
>
> But, are you sure the threads are sleeping, not exiting?  (They should
> be exiting).
>
> This merge scheduler starts a new thread when a merge is needed,
> allows that thread to do another merge (if one is immediately
> available), else the thread exits.

They seem to exit eventually, but not quite as soon as they arrive.


>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Sun, Feb 19, 2012 at 9:05 PM, Benson Margulies <bimargulies@gmail.com> wrote:
>> A long-running program of mine (which Uwe's read a model of) slowly
>> keeps adding merge threads. I count 22 at the moment. Each one shows
>> up, runs for a bit, and then goes to sleep for, seemingly ever. I
>> don't do anything explicit to control merging behavior.
>>
>> They name themselves "Lucene Merge Thread #xxx" where xxx is a
>> non-contiguous but ever-growing number.
>>
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