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https://issues.apache.org/jira/browse/ACCUMULO-2554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13972919#comment-13972919
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Keith Turner commented on ACCUMULO-2554:
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Earlier when I looked for {{dt_socket}} I was looking in
{{test/target/mini-test}} and found nothing. I tried looking in
{{minicluster/target/mini-test}} and did find {{dt_socket}} messages.
{noformat}
$ pwd
/local/disk1/jenkins/workspace/accumulo16/minicluster/target/mini-tests
$ find . -name "*Zoo*.out" | xargs grep "dt_socket"
./org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImplTest/logs/ZooKeeperServerMain_1826463271.out:Listening
for transport dt_socket at address: 37923
./org.apache.accumulo.minicluster.MiniAccumuloClusterTest/logs/ZooKeeperServerMain_523145999.out:Listening
for transport dt_socket at address: 48270
{noformat}
Looking into this further, this dt_socket message is not the zookeeper port.
{noformat}
$ cd ./org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImplTest/logs/
$ grep dt_socket ZooKeeperServerMain_1826463271.out
Listening for transport dt_socket at address: 37923
$ grep inding ZooKeeperServerMain_1826463271.out
2014-04-16 15:30:26,212 [server.NIOServerCnxn] INFO : binding to port
0.0.0.0/0.0.0.0:2617
$ grep 2617 ../conf/zoo.cfg
clientPort=2617
{noformat}
Maybe the dt_socket port is a debug or jmx port??? Whatever it is, its the
very first think printed and if you see nothing else, then it implies zookeeper
is hung. I think it would be really useful to jstack one of these hung
zookeeper servers if you can catch it.
> MiniCluster Tests fail due to zookeeper
> ---------------------------------------
>
> Key: ACCUMULO-2554
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2554
> Project: Accumulo
> Issue Type: Sub-task
> Components: maven-plugin, mini
> Affects Versions: 1.6.0
> Environment: Maven 3.0.4 on JDK 6u31 on Jenkins
> Reporter: Mike Drob
> Fix For: 1.6.1
>
>
> I've seen the following three tests fail multiple times over nightly builds.
> {noformat}
> Test Result (3 failures / +3)
> org.apache.accumulo.minicluster.MiniAccumuloClusterTest.org.apache.accumulo.minicluster.MiniAccumuloClusterTest
> org.apache.accumulo.minicluster.impl.MiniAccumuloClusterGCTest.org.apache.accumulo.minicluster.impl.MiniAccumuloClusterGCTest
> org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImplTest.org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImplTest
> {noformat}
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