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From Daniel Penning <>
Subject Re: Lucene multithreaded indexing problems
Date Sat, 23 Nov 2013 16:21:51 GMT
Maybe you should turn on Garbage Collection logging to confirm that you 
are running into some kind of memory problem. (start JVM with -verbose:gc)
If the GC is running very often as soon as your indexing process slows 
down, i would suggest you to create a heapdump and check what the memory 
is used for.

Am 23.11.2013 16:45, schrieb Igor Shalyminov:
> So we return to the initially described setup: multiple parallel workers, each making
"parse + indexWriter.addDocument()" for single documents with no synchronization at my side.
This setup was also bad on memory consumption and thread blocking, as I reported.
> Or did I misunderstand you?

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