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(NfsSecondaryStorageResource.java:365)
at
com.cloud.storage.resource.NfsSecondaryStorageResource.executeRequest(NfsSecondaryStorageResource.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
Thank you for your help,
-John
On Oct 2, 2012, at 5:27 PM, Edison Su <[email protected]> wrote:
> Do you have log message for this NoClassDefFound exception?
>
>> -----Original Message-----
>> From: John Burwell [mailto:[email protected]]
>> Sent: Tuesday, October 02, 2012 1:35 PM
>> To: [email protected]
>> 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
