[
https://issues.apache.org/jira/browse/NUTCH-1148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ferdy Galema closed NUTCH-1148.
-------------------------------
Resolution: Cannot Reproduce
Wow this really boggles my mind: I tried to do a final check with and without
patch, but I cannot reproduce the error anymore.
I must have had a different issue back then, which I accidentally repaired,
tricking me into thinking changing the classloader fixed it. Apparently it
didn't.
Well, that's another way to resolve an issue. :)
> Nutchgora job jar functionalilty is broken: PluginManifestParser cannot load
> plugins from system classloader.
> -------------------------------------------------------------------------------------------------------------
>
> Key: NUTCH-1148
> URL: https://issues.apache.org/jira/browse/NUTCH-1148
> Project: Nutch
> Issue Type: Bug
> Affects Versions: nutchgora
> Reporter: Ferdy Galema
> Priority: Critical
> Attachments: NUTCH-1148-v1.patch
>
>
> This affects running nutchgora using Hadoop it's RunJar mechanism (hadoop jar
> ...). The mr tasks are perfectly able to load the plugins (please note
> NUTCH-937). But, when the plugins are loaded from the *job submitter* process
> itself, loading plugins might fail due to classloading issues. This is caused
> by the fact that PluginManifestParser does not use the contextClassLoader
> that is set by RunJar. This classloader contains the plugins folder. At least
> the FetcherJob is affected by this, because the job submitter uses getFields
> of Protocol implementations, therefore loading the plugins.
> The current 1.x is not affected because it does not load plugins at any point
> during the job submission. This might of course change so I propose to 'fix'
> the issue in the 1.x branch as well.
> The solution is fairly simple, PluginManifestParser should use the
> contextClassLoader of the current thread instead of using the system
> classloader. I will attach patch right away. It currently works but it still
> needs some further testing.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
