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Subject: Re: AgentHandler Classloading Issue
From: John Burwell <jburwell@basho.com>
In-Reply-To: <79A95262-ED5B-4A08-ACDF-7AC9C3AE6E04@basho.com>
Date: Tue, 2 Oct 2012 19:02:35 -0400
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 <C66C814C1ABFA8449FF65CB44953A8B4012CBB65BD77@SJCPMAILBOX01.citrite.net>
 <79A95262-ED5B-4A08-ACDF-7AC9C3AE6E04@basho.com>
To: cloudstack-dev@incubator.apache.org

Edison,

I am running on a devcloud VM, and that directory does not appear to be =
present.  Is there an alternative directory for the devcloud =
environment?  Also, how do I modify the build process to include the AWS =
client jars and associated dependencies in the system vm?

Thank you for your help,
-John

On Oct 2, 2012, at 5:49 PM, John Burwell <jburwell@basho.com> wrote:

> Edison,
>=20
> The following is the stack track from the log:
>=20
> 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(NfsSecondar=
yStorageResource.java:365)
>        at =
com.cloud.storage.resource.NfsSecondaryStorageResource.executeRequest(NfsS=
econdaryStorageResource.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(ThreadPoolExecutor.=
java:886)
>        at =
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java=
: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
>=20
> Thank you for your help,
> -John
>=20
> On Oct 2, 2012, at 5:27 PM, Edison Su <Edison.su@citrix.com> wrote:
>=20
>> Do you have log message for this NoClassDefFound exception?
>>=20
>>> -----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
>>>=20
>>> All,
>>>=20
>>> 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?
>>>=20
>>> Thank you for your assistance,
>>> -John
>=20