# Java.lang.IllegalArgumentException: Too many documents, composite IndexReaders cannot exceed 2147483647
**URL:** https://discuss.elastic.co/t/java-lang-illegalargumentexception-too-many-documents-composite-indexreaders-cannot-exceed-2147483647/17104
**Category:** Elasticsearch
**Created:** [April 21, 2014, 3:45am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-too-many-documents-composite-indexreaders-cannot-exceed-2147483647/17104 "2014-04-21T03:45:08Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@lzw](https://discuss.elastic.co/u/lzw)
#### Post date: [April 21, 2014, 3:45am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-too-many-documents-composite-indexreaders-cannot-exceed-2147483647/17104/1 "2014-04-21T03:45:08Z")
Hello everybody,
I was using lucene 4.6 to create document index, my document has 2737197463 documents in 39G, I was used in SearcherManager to search index,but throw IllegalArgumentException.
Exception in thread "main" java.lang.IllegalArgumentException: Too many documents, composite IndexReaders cannot exceed 2147483647
at org.apache.lucene.index.BaseCompositeReader.(BaseCompositeReader.java:77)
at org.apache.lucene.index.DirectoryReader.(DirectoryReader.java:368)
at org.apache.lucene.index.StandardDirectoryReader.(StandardDirectoryReader.java:42)
at org.apache.lucene.index.StandardDirectoryReader$1.doBody(StandardDirectoryReader.java:72)
at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:843)
at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:52)
at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:66)
at org.apache.lucene.search.SearcherManager.(SearcherManager.java:106)
at com.ctfo.lucene.core.LucSreachCore.(LucSreachCore.java:69)
at com.ctfo.lucene.LucCenter.run(LucCenter.java:93)
at com.ctfo.lucene.LucCenter.main(LucCenter.java:42)
I want to know how fix and set max docment for search index ?
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### Author:  [@lzw](https://discuss.elastic.co/u/lzw)
#### Post date: [April 24, 2014, 7:57am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-too-many-documents-composite-indexreaders-cannot-exceed-2147483647/17104/2 "2014-04-24T07:57:22Z")
pls everyone help me
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:33am UTC](https://discuss.elastic.co/t/java-lang-illegalargumentexception-too-many-documents-composite-indexreaders-cannot-exceed-2147483647/17104/3 "2017-07-06T01:33:50Z")