Make DocumentsWriter more robust on hitting OOM
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Key: LUCENE-1171
URL: https://issues.apache.org/jira/browse/LUCENE-1171
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 2.3
Reporter: Michael McCandless
Assignee: Michael McCandless
Priority: Minor
Fix For: 2.4
I've been stress testing DocumentsWriter by indexing wikipedia, but not
giving enough memory to the JVM, in varying heap sizes to tickle the
different interesting cases. Sometimes DocumentsWriter can deadlock;
other times it will hit a subsequent NPE or AIOOBE or assertion
failure.
I've fixed all the cases I've found, and added some more asserts. Now
it just produces plain OOM exceptions. All changes are contained to
DocumentsWriter.java.
All tests pass. I plan to commit in a day or two!
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