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From "Andrzej Bialecki (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-4083) RateLimited.pause() throws unchecked exception
Date Tue, 29 May 2012 16:19:22 GMT
Andrzej Bialecki  created LUCENE-4083:
-----------------------------------------

             Summary: RateLimited.pause() throws unchecked exception
                 Key: LUCENE-4083
                 URL: https://issues.apache.org/jira/browse/LUCENE-4083
             Project: Lucene - Java
          Issue Type: Bug
          Components: core/store
    Affects Versions: 4.0
            Reporter: Andrzej Bialecki 
             Fix For: 4.0


The while() loop in RateLimiter.pause() invokes Thread.sleep() with potentially large values,
which occasionally results in InterruptedException being thrown from Thread.sleep(). This
is wrapped in an unchecked ThreadInterruptedException and re-thrown, and results in high-level
errors like this:
{code}
    [junit] 2012-05-29 15:50:15,464 ERROR core.SolrCore - org.apache.lucene.util.ThreadInterruptedException:
java.lang.InterruptedException: sleep interrupted
    [junit] 	at org.apache.lucene.store.RateLimiter.pause(RateLimiter.java:82)
    [junit] 	at org.apache.lucene.store.MockIndexOutputWrapper.writeBytes(MockIndexOutputWrapper.java:82)
    [junit] 	at org.apache.lucene.store.MockIndexOutputWrapper.writeByte(MockIndexOutputWrapper.java:73)
    [junit] 	at org.apache.lucene.store.DataOutput.writeVInt(DataOutput.java:191)
    [junit] 	at org.apache.lucene.codecs.lucene40.Lucene40PostingsWriter.addPosition(Lucene40PostingsWriter.java:237)
    [junit] 	at org.apache.lucene.index.FreqProxTermsWriterPerField.flush(FreqProxTermsWriterPerField.java:519)
    [junit] 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:92)
    [junit] 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:117)
    [junit] 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
    [junit] 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
    [junit] 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:475)
    [junit] 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:422)
    [junit] 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:553)
    [junit] 	at org.apache.lucene.index.IndexWriter.prepareCommit(IndexWriter.java:2416)
    [junit] 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2548)
    [junit] 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2530)
    [junit] 	at org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:414)
    [junit] 	at org.apache.solr.update.processor.RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:82)
{code}

I believe this is a bug - the while() loop already ensures that the total time spent in pause()
is correct even if InterruptedException-s are thrown, so they should not be re-thrown.

The patch is trivial - simply don't re-throw.

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