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From Siraj Haider <>
Subject Lucene going non-responsive under heavy load
Date Tue, 22 Dec 2009 22:19:01 GMT
Hello guys,
We have a dilemma on a few of our lucene machines.  We have a tomcat 
running our servlets for searching and indexing on each of these 
machines.  Its a live index where documents are being added to index 
while online searches are also being served at the same time.  Indexing 
happens every 5 minutes and if there are new documents added, the index 
gets reopend.  For most of the times the performance is very good, but 
under heavy load of searches, the machine goes non-responsive.  We can 
still telnet to machine and see that cpu-wise its not bad, but I/O seems 
to be a problem.  Is there anything we might be doing to cause it or 
anything that we can do to avoid it.  I know I did not provide a lot of 
information about how we are indexing and searching but I will answer 
any question anyone might have.

thanks in advance

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