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Posted to dev@lucene.apache.org by "Littlestar (JIRA)" <ji...@apache.org> on 2014/09/02 05:19:21 UTC
[jira] [Updated] (LUCENE-5917) complex Query cause luene outMemory
[ https://issues.apache.org/jira/browse/LUCENE-5917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Littlestar updated LUCENE-5917:
-------------------------------
Environment:
256G RAM + 1.5T SSD + 1.2T DATA(10*10000*10000 records).
java heap=128G, G1
was:
128G RAM + 1.5T SSD + 1.2T DATA(10*10000*10000 records).
> complex Query cause luene outMemory
> -----------------------------------
>
> Key: LUCENE-5917
> URL: https://issues.apache.org/jira/browse/LUCENE-5917
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Affects Versions: 4.9
> Environment: 256G RAM + 1.5T SSD + 1.2T DATA(10*10000*10000 records).
> java heap=128G, G1
> Reporter: Littlestar
> Priority: Minor
>
> RangeQuery, prefixQuery and WildcardQuery use FixedBitSet when TERM_COUNT >= 350 or DOC_COUNT_PERCENT >=0.1.
> It use a lots of memory when maxDoc very large.
> MultiTermQueryWrapperFilter<Q extends MultiTermQuery> extends Filter
> a little threads run with query "a* OR b* OR c*.....OR z*“ will cause luene outMemory, but there is no ways to prevent it.
> another thing, some complex query also use a lot of memory too..
> I think query implements Accountable(#ramSizeInBytes), users can throw a exception better than OutOfMemory.
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