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From "David Sitsky (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2511) OutOfMemoryError should not be wrapped in an IllegalStateException, as it is misleading for fault-tolerant programs
Date Thu, 24 Jun 2010 06:28:50 GMT
OutOfMemoryError should not be wrapped in an IllegalStateException, as it is misleading for
fault-tolerant programs
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                 Key: LUCENE-2511
                 URL: https://issues.apache.org/jira/browse/LUCENE-2511
             Project: Lucene - Java
          Issue Type: Bug
          Components: Index
    Affects Versions: 2.4.1
            Reporter: David Sitsky
            Priority: Minor


I have a program, which does explicit commits.  On one occasion, I saw the following exception
thrown:

java.lang.IllegalStateException: this writer hit an OutOfMemoryError; cannot commit
at org.apache.lucene.index.IndexWriter.prepareCommit(IndexWriter.java:4061)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:4136)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:4114)

In our program, we treat all errors as fatal and terminate the program (and restart).  Runtime
exceptions are sometimes handled differently, since they are usually indicative of a programming
bug that might be recoverable. in some situations.

I think the OutOfMemoryError should not be wrapped as a runtime exception.. as this can mask
a serious issue from a fault-tolerant application.

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