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From adrena.keat...@nl.abnamro.com
Subject [users@httpd] Lucene/Tomcat Memory Issue
Date Fri, 11 Aug 2006 15:22:13 GMT

Hello,  Does anyone have any suggestions on how to solve the following
issue:


Following a Tomcat restart, our web based application has Lucene creating a
single
new index in a RAMDirectory, followed by continuous creation of
additional index entries as new content is published.

During the initial index creation process, Heap Memory utilization jumps
to over 300 MB and never drops back down, even though the new index
itself is ~15 MB in size. Then, as additional index entries are added,
the Heap Memory utilization continues to increase until we max out the
available Heap Memory and Tomcat crashes.

Relevant configuration items:
      Windows 2000 5.0
      4 Processors, 2GB RAM
      Tomcat 5.0.27
      JDK 1.5.0_06
      Lucene 1.9.1
      VM arguments:
            -Djava.io.tmpdir=D:\Appldata\Lucene\lockDir
            -Dorg.apache.lucene.commitLockTimeout=60000
            -Dorg.apache.lucene.writeLockTimeout=60000
            -XX:PermSize=256m
            -XX:MaxPermSize=512m
            -Xrs
            -Xms256m
            -Xmx1024m
            -Xss512k
      lucene.searcher.keep.open=true
      lucene.searcher.retries=6

Has anyone experienced similar conditions? Any suggestions?"


Kind Regards
Adrena Keating



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