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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9941) The context ClassLoader isn't set while calling into a coprocessor
Date Fri, 03 Jan 2014 17:46:06 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13861706#comment-13861706
] 

Ted Yu commented on HBASE-9941:
-------------------------------

{code}
+   * Find a coprocessor environment by class name
+   * @param className the class name
+   * @return the coprocessor, or null if not found
{code}
nit: @return the coprocessor -> @return the coprocessor environment
{code}
+public class CoprocessorInvocationEvaluation extends SimpleBenchmark {
{code}
Add annotation for audience.
{code}
+        cpHost.prePut(put, edit, Durability.SYNC_WAL);
+      } catch (IOException e) {
+      }
{code}
Log the exception above ?


> The context ClassLoader isn't set while calling into a coprocessor
> ------------------------------------------------------------------
>
>                 Key: HBASE-9941
>                 URL: https://issues.apache.org/jira/browse/HBASE-9941
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Coprocessors
>    Affects Versions: 0.96.0
>            Reporter: Benoit Sigoure
>            Assignee: Andrew Purtell
>             Fix For: 0.98.0
>
>         Attachments: 9941.patch, 9941.patch
>
>
> Whenever one of the methods of a coprocessor is invoked, the context {{ClassLoader}}
isn't set to be the {{CoprocessorClassLoader}}.  It's only set properly when calling the coprocessor's
{{start}} method.  This means that if the coprocessor code attempts to load classes using
the context {{ClassLoader}}, it will fail to find the classes it's looking for.



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