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From David Medinets <david.medin...@gmail.com>
Subject Re: Program runs fine in NetBeans fails the shutdown properly running via Maven
Date Sun, 30 Nov 2014 14:10:23 GMT
Right again. I changed the package name to "jaredwinick" and the
"sealing violation" issue was resolved. But the JIRA ticket comments
were correct about the code's being brittle. It has a String literal
that refers to "org.apache.accumulo.core.zookeeper.ZooSession"which
does not exist in Accumulo v1.6.1.

On Sun, Nov 30, 2014 at 12:05 AM, Josh Elser <josh.elser@gmail.com> wrote:
> I believe that means you re-used the package org.apache.accumulo.core.util
> which was already defined in accumulo-core.jar.
>
> Don't do that.
>
>
> David Medinets wrote:
>>
>> Thanks Josh. That explanation makes sense. I added the referenced
>> ClientThreads.shutdownNow() method to my code and ran into the
>> following:
>>
>>     java.lang.SecurityException: sealing violation: package
>> org.apache.accumulo.core.util is sealed
>>
>>
>> I can live with this issue until v2.0 since it happens when the JVM is
>> exiting. And I'm just writing demonstration code for no particular
>> reason. At the least, we'll have a small project to test the fix
>> against.
>>
>>
>> On Sat, Nov 29, 2014 at 10:35 PM, Josh Elser<josh.elser@gmail.com>  wrote:
>>>
>>>  From http://mojo.codehaus.org/exec-maven-plugin/usage.html,
>>>
>>> "By default daemon threads are joined and interrupted once all known non
>>> daemon threads have quitted"
>>>
>>> So, your main thread finished, but before the exec plugin stopped the
>>> application, it tried to interrupt the other non-daemon threads that were
>>> still running (which should be a sign for them quit on their own).
>>>
>>> However, it's a known issue[1] that we have ZooKeeper and Thrift
>>> resources
>>> that are not cleaned up (a problem which is slated to be fixed by
>>> Christopher's 2.0 API refactoring).
>>>
>>> Hope that makes sense.
>>>
>>> [1] https://issues.apache.org/jira/browse/ACCUMULO-2113
>>>
>>>
>>> David Medinets wrote:
>>>>
>>>> This might be a stupid David issue but it's at least marginally
>>>> related to Accumulo so I'm hoping someone will recognize the problem
>>>> and help.
>>>>
>>>> I am seeing this error when my program is run via maven:
>>>>
>>>>     java.lang.InterruptedException: sleep interrupted
>>>>
>>>> The program connects to a MiniAccumuloCluster and creates a table if
>>>> it does not exist. The program works fine inside Netbeans.
>>>>
>>>> In both NetBeans and Maven, the program connects to the
>>>> MiniAccumuloCluster just fine. The shutdown is the problem.
>>>>
>>>> I have a github project which should demonstrate the issue.
>>>>
>>>> # First clone the project
>>>> git clone https://github.com/medined/jodoc.git
>>>> cd jodoc
>>>>
>>>> # Then build the java image
>>>> cd java_zulu7
>>>> ./build_image.sh
>>>>
>>>> # Then compile and create a jar file
>>>> mvn package
>>>>
>>>> # Then build the jodoc image
>>>> ./build_image.sh
>>>>
>>>> # And run the jodoc image. This image runs a MiniAccumuloCluster
>>>> # using port 20000 for Zookeeper.
>>>> ./run_image.sh
>>>>
>>>> # Finally run the client program via Maven
>>>> mvn exec:java -Dexec.mainClass="com.codebits.jodoc.WriteAndReadDriver"
>>>> -DZOOKEEPER_PORT=20000
>>>>
>>>> Here is the full error stack:
>>>>
>>>> java.lang.InterruptedException: sleep interrupted
>>>>       at java.lang.Thread.sleep(Native Method)
>>>>       at
>>>>
>>>> org.apache.accumulo.core.client.impl.ThriftTransportPool$Closer.closeConnections(ThriftTransportPool.java:137)
>>>>       at
>>>>
>>>> org.apache.accumulo.core.client.impl.ThriftTransportPool$Closer.run(ThriftTransportPool.java:147)
>>>>       at java.lang.Thread.run(Thread.java:745)
>>>> 2014-11-29 21:05:18,011 ERROR
>>>> [com.codebits.jodoc.WriteAndReadDriver.main()-EventThread]
>>>> zookeeper.ClientCnxn (ClientCnxn.java:run(513)) - Event thread exiting
>>>> due to interruption
>>>> java.lang.InterruptedException
>>>>       at
>>>>
>>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2014)
>>>>       at
>>>>
>>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2048)
>>>>       at
>>>>
>>>> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
>>>>       at
>>>> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
>>>> 2014-11-29 21:05:18,012 INFO
>>>> [com.codebits.jodoc.WriteAndReadDriver.main()-EventThread]
>>>> zookeeper.ClientCnxn (ClientCnxn.java:run(516)) - EventThread shut
>>>> down
>>>> 2014-11-29 21:05:28,010 WARN
>>>> [com.codebits.jodoc.WriteAndReadDriver.main(localhost:20000)]
>>>> zookeeper.ClientCnxn (ClientCnxn.java:run(1185)) - Session
>>>> 0x149fe6a2c5a0007 for server localhost/127.0.0.1:20000, unexpected
>>>> error, closing socket connection and attempting reconnect
>>>> java.nio.channels.ClosedByInterruptException
>>>>       at
>>>>
>>>> java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:202)
>>>>       at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:477)
>>>>       at
>>>> org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:890)
>>>>       at
>>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1154)
>>>> 2014-11-29 21:05:29,596 INFO
>>>> [com.codebits.jodoc.WriteAndReadDriver.main(localhost:20000)]
>>>> zookeeper.ClientCnxn (ClientCnxn.java:startConnect(1058)) - Opening
>>>> socket connection to server localhost/127.0.0.1:20000
>>>> 2014-11-29 21:05:29,596 INFO
>>>> [com.codebits.jodoc.WriteAndReadDriver.main(localhost:20000)]
>>>> zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(947)) - Socket
>>>> connection established to localhost/127.0.0.1:20000, initiating
>>>> session
>>>> 2014-11-29 21:05:29,598 INFO
>>>> [com.codebits.jodoc.WriteAndReadDriver.main(localhost:20000)]
>>>> zookeeper.ClientCnxn (ClientCnxn.java:readConnectResult(736)) -
>>>> Session establishment complete on server localhost/127.0.0.1:20000,
>>>> sessionid = 0x149fe6a2c5a0007, negotiated timeout = 30000
>>>> [WARNING] thread
>>>>
>>>>
>>>> Thread[com.codebits.jodoc.WriteAndReadDriver.main(localhost:20000),5,com.codebits.jodoc.WriteAndReadDriver]
>>>> was interrupted but is still alive after waiting at least 15000msecs
>>>> [WARNING] thread
>>>>
>>>>
>>>> Thread[com.codebits.jodoc.WriteAndReadDriver.main(localhost:20000),5,com.codebits.jodoc.WriteAndReadDriver]
>>>> will linger despite being asked to die via interruption
>>>> [WARNING] thread Thread[Thrift Connection Pool
>>>> Checker,5,com.codebits.jodoc.WriteAndReadDriver] will linger despite
>>>> being asked to die via interruption
>>>> [WARNING] NOTE: 2 thread(s) did not finish despite being asked to  via
>>>> interruption. This is not a problem with exec:java, it is a problem
>>>> with the running code. Although not serious, it should be remedied.
>>>> [WARNING] Couldn't destroy threadgroup
>>>>
>>>>
>>>> org.codehaus.mojo.exec.ExecJavaMojo$IsolatedThreadGroup[name=com.codebits.jodoc.WriteAndReadDriver,maxpri=10]
>>>> java.lang.IllegalThreadStateException
>>>>       at java.lang.ThreadGroup.destroy(ThreadGroup.java:778)
>>>>       at
>>>> org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:328)
>>>>       at
>>>>
>>>> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:133)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
>>>>       at
>>>>
>>>> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
>>>>       at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
>>>>       at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
>>>>       at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
>>>>       at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
>>>>       at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
>>>>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>       at
>>>>
>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>>>       at
>>>>
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>>>       at java.lang.reflect.Method.invoke(Method.java:483)
>>>>       at
>>>>
>>>> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
>>>>       at
>>>>
>>>> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
>>>>       at
>>>>
>>>> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
>>>>       at
>>>>
>>>> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
>>>>
>>>> ----
>>>>
>>>> Any ideas?

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