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https://issues.apache.org/jira/browse/STORM-3128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572168#comment-16572168
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Stig Rohde Døssing commented on STORM-3128:
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It looks like the test is doing a partial mock of LocalFsBlobStore, where the
parts that would be hitting Zookeeper are stubbed. It's kind of an unfortunate
way to do this kind of test (partial mocks usually point to the class doing too
much), but the test itself looks correct to me. I don't think this points to a
bug, it's just that the test probably should have been written differently (and
LocalFsBlobStore split up).
> Connection refused error in AsyncLocalizerTest
> ----------------------------------------------
>
> Key: STORM-3128
> URL: https://issues.apache.org/jira/browse/STORM-3128
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-server
> Affects Versions: 2.0.0
> Reporter: Zhengdai Hu
> Priority: Major
>
> In AsyncLocalizerTest testKeyNotFoundException, a localBlobStore is created
> and tries but failed to connect to zookeeper due to connection error. I'm not
> sure if this compromises the test even though it is passed after connection
> retry timeout. But it's nice to keep in mind.
> {noformat}
> 2018-06-27 13:05:28.005 [main-SendThread(localhost:2181)] INFO
> org.apache.storm.shade.org.apache.zookeeper.ClientCnxn - Opening socket
> connection to server localhost/0:0:0:0:0:0:0:1:2181. Will not attempt to
> authenticate using SASL (unknown error)
> 2018-06-27 13:05:28.032 [main] INFO
> org.apache.storm.shade.org.apache.curator.framework.imps.CuratorFrameworkImpl
> - Default schema
> 2018-06-27 13:05:28.035 [main-SendThread(localhost:2181)] WARN
> org.apache.storm.shade.org.apache.zookeeper.ClientCnxn - Session 0x0 for
> server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> ~[?:1.8.0_171]
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> ~[?:1.8.0_171]
> at
> org.apache.storm.shade.org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
> ~[shaded-deps-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
> at
> org.apache.storm.shade.org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
> [shaded-deps-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
> {noformat}
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