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https://issues.apache.org/jira/browse/SOLR-857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12649374#action_12649374
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Ruben Jimenez commented on SOLR-857:
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Sorry I've been sick all week and am just getting back on my feet today.
I haven't been able to reproduce the issue by duplicating a single file and
modifying it to allowDups. i've also tried by duplicating a random set of
about 3 files.
By looking through the heap dump I noticed that the "$Norms" memory usage was
pretty high, so I modified the schema to have the text field omitNorms. This
helped but simply delayed the problem.
As of right now we believe that the issue might be related to the fact that we
are creating a large number of dynamic fields, hence the large number of
FieldInfo instances in memory in the heap dump. I'll try to see what is the
minimum number of files required to reproduce the issue, but I have a feeling
it will be on the order of 23 or so.
> Memory Leak during the indexing of large xml files
> --------------------------------------------------
>
> Key: SOLR-857
> URL: https://issues.apache.org/jira/browse/SOLR-857
> Project: Solr
> Issue Type: Bug
> Affects Versions: 1.3
> Environment: Verified on Ubuntu 8.0.4 (1.7GB RAM, 2.4GHz dual core)
> and Windows XP (2GB RAM, 2GHz pentium) both with a Java5 SDK
> Reporter: Ruben Jimenez
> Attachments: OQ_SOLR_00001.xml.zip, schema.xml, solr256MBHeap.jpg
>
>
> While indexing a set of SOLR xml files that contain 5000 document adds within
> them and are about 30MB each, SOLR 1.3 seems to continually use more and more
> memory until the heap is exhausted, while the same files are indexed without
> issue with SOLR 1.2.
> Steps used to reproduce.
> 1 - Download SOLR 1.3
> 2 - Modify example schema.xml to match fields required
> 3 - start example server with following command java -Xms512m -Xmx1024m
> -XX:MaxPermSize=128m -jar start.jar
> 4 - Index files as follow java -Xmx128m -jar
> .../examples/exampledocs/post.jar *.xml
> Directory with xml files contains about 100 xml files each of about 30MB
> each. While indexing after about the 25th file SOLR 1.3 runs out of memory,
> while SOLR 1.2 is able to index the entire set of files without any problems.
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