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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-657) AntiEntropyService causes lots of errors to be logged during unit tests
Date Fri, 22 Jan 2010 05:14:54 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803606#action_12803606
] 

Jonathan Ellis commented on CASSANDRA-657:
------------------------------------------

I'd rather just let it EOF; that is less fragile if we decide to pool streaming connections
later.

We can move the log message to trace if it bothers you. :)

> AntiEntropyService causes lots of errors to be logged during unit tests
> -----------------------------------------------------------------------
>
>                 Key: CASSANDRA-657
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-657
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Stu Hood
>             Fix For: 0.6
>
>         Attachments: 657-short-lived-connections-for-streaming.patch
>
>
> Some examples from a successful test run on trunk:
> java.io.IOException: Reached an EOL or something bizzare occured. Reading from: /127.0.0.1
BufferSizeRemaining: 16
> 	at org.apache.cassandra.net.io.StartState.doRead(StartState.java:44)
> 	at org.apache.cassandra.net.io.ProtocolState.read(ProtocolState.java:39)
> 	at org.apache.cassandra.net.io.TcpReader.read(TcpReader.java:96)
> 	at org.apache.cassandra.net.TcpConnection$ReadWorkItem.run(TcpConnection.java:444)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:619)
> ERROR [TCP Selector Manager] 2009-12-29 16:27:53,244 TcpConnection.java (line 363) Encountered
IOException on connection: java.nio.channels.SocketChannel[closed]
> java.net.ConnectException: Connection refused
> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
> 	at org.apache.cassandra.net.TcpConnection.connect(TcpConnection.java:341)
> 	at org.apache.cassandra.net.SelectorManager.doProcess(SelectorManager.java:143)
> 	at org.apache.cassandra.net.SelectorManager.run(SelectorManager.java:107)
> It's not obvious to me if these are errors in AES, errors in the streaming code, errors
caused because the test environment insufficiently resembles a live one, or errors because
the test is asking the streaming code to do something that doesn't make sense, but AES is
definitely at least immediately responsible.

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