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From Edison Su <Edison...@citrix.com>
Subject RE: AgentHandler Classloading Issue
Date Tue, 02 Oct 2012 22:44:11 GMT
AWSCredentials is missing. You need to put aws-java-sdk*.jar into secondary storage vm, at
/usr/local/cloud/systemvm/

> -----Original Message-----
> From: John Burwell [mailto:jburwell@basho.com]
> Sent: Tuesday, October 02, 2012 2:49 PM
> To: cloudstack-dev@incubator.apache.org
> Subject: Re: AgentHandler Classloading Issue
> 
> Edison,
> 
> The following is the stack track from the log:
> 
> 2012-10-02 14:47:59,663 ERROR [cloud.template.S3SyncTask] (s3-template-
> sync-1:null) Failed to sync S3 objects due to the following error:
> Failed to upload template 5 to S3 from secondary storage due to
> java.lang.NoClassDefFoundError: com/amazonaws/auth/AWSCredentials
>         at
> com.cloud.storage.resource.NfsSecondaryStorageResource.execute(NfsSecon
> daryStorageResource.java:365)
>         at
> com.cloud.storage.resource.NfsSecondaryStorageResource.executeRequest(N
> fsSecondaryStorageResource.java:194)
>         at com.cloud.agent.Agent.processRequest(Agent.java:518)
>         at
> com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:831)
>         at com.cloud.utils.nio.Task.run(Task.java:83)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecut
> or.java:886)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.j
> ava:908)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.ClassNotFoundException:
> com.amazonaws.auth.AWSCredentials
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>         ... 8 more
> 
> Thank you for your help,
> -John
> 
> On Oct 2, 2012, at 5:27 PM, Edison Su <Edison.su@citrix.com> wrote:
> 
> > Do you have log message for this NoClassDefFound exception?
> >
> >> -----Original Message-----
> >> From: John Burwell [mailto:jburwell@basho.com]
> >> Sent: Tuesday, October 02, 2012 1:35 PM
> >> To: cloudstack-dev@incubator.apache.org
> >> Subject: AgentHandler Classloading Issue
> >>
> >> All,
> >>
> >> NoClassDefFound exceptions are occurring when executing code in an
> >> AgentManager-Handler thread pool (specifically calling a utility
> class
> >> from the cloud-utils module while in an NfsSecondaryStorageResource
> >> method).  The same code executes without error in other thread
> contexts
> >> (e.g.  calling the same method from code executing in the ApiServer
> >> thread pool).  I have isolated the NoClassDefFound exception to this
> >> particular thread pool which appears to be started in the
> >> com.cloud.utils.nio.NioConnection class.  I have also been unable to
> >> find log messages from work executing in the AgentManager-Handler
> >> thread pool.  Additionally, breakpoints set do not fire when code is
> >> executing in the AgentManager-Handler, but do in other thread
> contexts.
> >> What is different about code executing in this thread pool?  Are
> there
> >> any special steps that must be taken for this code?
> >>
> >> Thank you for your assistance,
> >> -John


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