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https://issues.apache.org/jira/browse/HADOOP-3354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596970#action_12596970
 ] 

lohit vijayarenu commented on HADOOP-3354:
------------------------------------------

This happens quite often of Solaris test. Not sure if this is the reason for 
timeouts we see in our tests
{noformat}
from an unknown user" java.lang.NoClassDefFoundError
{noformat}

Here is the link 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2469/console
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[junit] Exception in thread "IPC Client (47) connection to 
localhost/127.0.0.1:42727 from an unknown user" java.lang.NoClassDefFoundError: 
org/apache/hadoop/net/SocketIOWithTimeout$SelectorPool$ProviderInfo
     [exec]     [junit]         at 
org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.get(SocketIOWithTimeout.java:325)
     [exec]     [junit]         at 
org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:250)
     [exec]     [junit]         at 
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:155)
     [exec]     [junit]         at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:150)
     [exec]     [junit]         at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:123)
     [exec]     [junit]         at 
java.io.FilterInputStream.read(FilterInputStream.java:111)
     [exec]     [junit]         at 
org.apache.hadoop.ipc.Client$Connection$PingInputStream.read(Client.java:266)
     [exec]     [junit]         at 
java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
     [exec]     [junit]         at 
java.io.BufferedInputStream.read(BufferedInputStream.java:235)
     [exec]     [junit]         at 
java.io.DataInputStream.readInt(DataInputStream.java:353)
     [exec]     [junit]         at 
org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:481)
     [exec]     [junit]         at 
org.apache.hadoop.ipc.Client$Connection.run(Client.java:427)
{noformat}

> Test Failure on trunk TestEditLog 
> ----------------------------------
>
>                 Key: HADOOP-3354
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3354
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.18.0
>         Environment: Solaris
>            Reporter: lohit vijayarenu
>
> TestEditLog failed on trunk. Only suspecting exception from log is
> {noformat}
>     [junit] 2008-05-06 11:34:31,441 INFO  ipc.Server (Server.java:run(899)) - 
> IPC Server handler 1 on 36391: exiting
>     [junit] Exception in thread "IPC Client (47) connection to 
> localhost/127.0.0.1:36385 from an unknown user" 
> java.lang.NoClassDefFoundError: org/apache/hadoop/io/IOUtils
>     [junit]   at 
> org.apache.hadoop.ipc.Client$Connection.close(Client.java:527)
>     [junit]   at org.apache.hadoop.ipc.Client$Connection.run(Client.java:430)
>     [junit] 2008-05-06 11:34:31,444 INFO  ipc.Server (Server.java:run(499)) - 
> Stopping IPC Server Responder
>     [junit] 2008-05-06 11:34:31,550 INFO  dfs.DataBlockScanner 
> (DataBlockScanner.java:run(567)) - Exiting DataBlockScanner thread.
>     [junit] Running org.apache.hadoop.dfs.TestEditLog
>     [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
>     [junit] Test org.apache.hadoop.dfs.TestEditLog FAILED (timeout)
> {noformat}
> Here is the console output 
> (http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/482/console)
> There are also these NoClassDefFoundError in many of the timeout test 
> failures. 

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