Dawid Weiss created LUCENE-4320:
-----------------------------------

             Summary: testDistribSearch test timeout (progress stalled)
                 Key: LUCENE-4320
                 URL: https://issues.apache.org/jira/browse/LUCENE-4320
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Dawid Weiss
            Priority: Minor
         Attachments: lucene.log

This build:
https://builds.apache.org/job/Lucene-Solr-Tests-4.x-java7/326/

resulted in JVM crash. Event logs from the crashed JVM are truncated so it 
really was a JVM crash but what happened before is also interesting -- 
testDistribSearch stalled without any progress for a looong time as seen in the 
logs (note the timestamps):
{code}
43076 T971 C105 P31455 UPDATE [oneInstanceCollection23] webapp=/solr 
path=/update 
params={waitSearcher=true&commit=true&wt=javabin&commit_end_point=true&softCommit=false&version=2}
 {commit=} 0 133
43077 T957 C106 P31455 UPDATE [oneInstanceCollection21] webapp=/solr 
path=/update 
params={waitSearcher=true&wt=javabin&commit=true&softCommit=false&version=2} 
{commit=} 0 210
7200065 T844 ccr.ThreadLeakControl$2.evaluate WARNING Suite execution timed 
out: org.apache.solr.cloud.BasicDistributedZkTest
{code}

There were about ~70 different threads active at the time the suite timed out, 
jstack shows the main test thread was pending io on a socket. Grep for "jstack" 
in the attached log file to see which threads were active and where.


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