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From Michael McCandless <>
Subject Re: OutOfMemoryError using IndexWriter
Date Wed, 24 Jun 2009 08:48:57 GMT
How large is the RAM buffer that you're giving IndexWriter?  How large
a heap size do you give to JVM?

Can you post one of the OOM exceptions you're hitting?


On Wed, Jun 24, 2009 at 4:08 AM, stefan<> wrote:
> Hi,
> I am using Lucene 2.4.1 to index a database with less than a million records. The resulting
index is about 50MB in size.
> I keep getting an OutOfMemory Error if I re-use the same IndexWriter to index the complete
database. This is though
> recommended in the performance hints.
> What I now do is, every 10000 Objects I close the index (and every 50 close actions optimize
it) and create a new
> IndexWriter to continue. This process works fine, but to me seems hardly the recommended
way to go.
> I've been using jhat/jmap as well as Netbeans profiler and am fairly sure that this is
a problem related to Lucene.
> Any Ideas - or post this to Jira ? Jira has quite a few OutOfMemory postings but they
all seem closed in Version 2.4.1.
> Thanks,
> Stefan
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