[
https://issues.apache.org/jira/browse/CLOUDSTACK-1173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582052#comment-13582052
]
Dave Cahill commented on CLOUDSTACK-1173:
-----------------------------------------
After a long and messy debugging session, I think I see what's wrong here.
Using jdb, I traced the source of the exception to this line:
com.cloud.agent.AgentShell:498
ServerResource resource = (ServerResource) constructor
.newInstance();
constructor in this case has a clazz of
com.cloud.agent.resource.consoleproxy.ConsoleProxyResource(), and this line
fails.
The line is trying to create an instance of
com.cloud.agent.resource.consoleproxy.ConsoleProxyResource, however during the
Spring refactor, this class was changed to be abstract - see commit [1]. I'm
guessing trying to instantiate an abstract class would cause an
InstantiationException:
diff --git
a/agent/src/com/cloud/agent/resource/consoleproxy/ConsoleProxyResource.java
b/agent/src/com/cloud/agent/resource/consoleproxy/ConsoleProxyResource.java
index 48f5079..8a3a271 100644
--- a/agent/src/com/cloud/agent/resource/consoleproxy/ConsoleProxyResource.java
+++ b/agent/src/com/cloud/agent/resource/consoleproxy/ConsoleProxyResource.java
@@ -77,7 +77,7 @@ import com.google.gson.Gson;
* server.
*
*/
-public class ConsoleProxyResource extends ServerResourceBase implements
+public abstract class ConsoleProxyResource extends ServerResourceBase
implements
ServerResource {
static final Logger s_logger =
Logger.getLogger(ConsoleProxyResource.class);
So my guess is that either this abstract modifier needs ro be removed again, or
we need to change systemvm/conf/agent.properties, which points ConsoleProxy at
this abstract class:
root@v-2-VM:/usr/local/cloud/systemvm# tail -3 conf/agent.properties
instance=ConsoleProxy
resource=com.cloud.agent.resource.consoleproxy.ConsoleProxyResource
The Spring commit is Kelven's, so hopefully he'll know whether the above guess
makes sense, and which fix is better.
[1]
https://git-wip-us.apache.org/repos/asf?p=incubator-cloudstack.git;a=commitdiff;h=176523254e211abef4f0e77278be8af587d7d5ad#patch4
> ConsoleProxyResource instantiation exception
> --------------------------------------------
>
> Key: CLOUDSTACK-1173
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1173
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: VNC Proxy
> Affects Versions: 4.1.0
> Environment: devcloud
> Reporter: Marcus Sorensen
> Fix For: 4.1.0
>
>
> Looks like ConsoleProxy software is not coming up in the latest branches:
> log4j:WARN No appenders could be found for logger
> (org.apache.commons.httpclient.params.DefaultHttpParams).
> log4j:WARN Please initialize the log4j system properly.
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more
> info.
> Unable to start agent: Instantiation excetion when loading resource:
> com.cloud.agent.resource.consoleproxy.ConsoleProxyResource due to:
> java.lang.InstantiationException
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
