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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2013/10/28 20:40:31 UTC
[jira] [Resolved] (CASSANDRA-6258) Need the root clause in
FBUtilities.classForName when there is exception loading class
[ https://issues.apache.org/jira/browse/CASSANDRA-6258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams resolved CASSANDRA-6258.
-----------------------------------------
Resolution: Fixed
Fix Version/s: 2.0.3
1.2.12
Reviewer: Brandon Williams
Assignee: Jackson Chung
Committed.
> Need the root clause in FBUtilities.classForName when there is exception loading class
> --------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6258
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6258
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jackson Chung
> Assignee: Jackson Chung
> Fix For: 1.2.12, 2.0.3
>
> Attachments: cassandra-6258.patch, cassandra-6258.patch.v2
>
>
> We have a custom snitch that works in 1.1, but the same does not work in 1.2 . It throws a ConfigurationException:
> {panel}
> ERROR 11:39:37,936 Fatal configuration error
> org.apache.cassandra.exceptions.ConfigurationException: Unable to find snitch class 'com.apigee.cassandra.OldEC2Snitch'
> at org.apache.cassandra.utils.FBUtilities.classForName(FBUtilities.java:432)
> at org.apache.cassandra.utils.FBUtilities.construct(FBUtilities.java:444)
> at org.apache.cassandra.config.DatabaseDescriptor.createEndpointSnitch(DatabaseDescriptor.java:530)
> at org.apache.cassandra.config.DatabaseDescriptor.loadYaml(DatabaseDescriptor.java:350)
> at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:126)
> at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:216)
> at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:447)
> at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:490)
> Unable to find snitch class 'com.apigee.cassandra.OldEC2Snitch'
> {panel}
> However the above exception does not help us understand what's wrong (jar is in the classpath and readable). I've to add the root clause to the ConfigurationException to see the real problem:
> {panel}
> ERROR 11:42:20,020 Fatal configuration error
> org.apache.cassandra.exceptions.ConfigurationException: Unable to find snitch class 'com.apigee.cassandra.OldEC2Snitch'
> at org.apache.cassandra.utils.FBUtilities.classForName(FBUtilities.java:432)
> at org.apache.cassandra.utils.FBUtilities.construct(FBUtilities.java:444)
> at org.apache.cassandra.config.DatabaseDescriptor.createEndpointSnitch(DatabaseDescriptor.java:530)
> at org.apache.cassandra.config.DatabaseDescriptor.loadYaml(DatabaseDescriptor.java:350)
> at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:126)
> at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:216)
> at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:447)
> at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:490)
> Caused by: java.lang.NoClassDefFoundError: org/apache/cassandra/config/ConfigurationException
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:169)
> at org.apache.cassandra.utils.FBUtilities.classForName(FBUtilities.java:424)
> ... 7 more
> Caused by: java.lang.ClassNotFoundException: org.apache.cassandra.config.ConfigurationException
> 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)
> ... 10 more
> Unable to find snitch class 'com.apigee.cassandra.OldEC2Snitch'
> {panel}
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