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Posted to common-issues@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (Updated) (JIRA)" <ji...@apache.org> on 2012/02/27 20:38:47 UTC
[jira] [Updated] (HADOOP-7695) RPC.stopProxy can throw unintended
exception while logging error
[ https://issues.apache.org/jira/browse/HADOOP-7695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HADOOP-7695:
-------------------------------------------
Fix Version/s: 0.23.3
I have merged this to 0.23.
> RPC.stopProxy can throw unintended exception while logging error
> ----------------------------------------------------------------
>
> Key: HADOOP-7695
> URL: https://issues.apache.org/jira/browse/HADOOP-7695
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.24.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Fix For: 0.24.0, 0.23.3
>
> Attachments: HADOOP-7695.patch
>
>
> {{RPC.stopProxy}} includes the following lines in case of error:
> {code}
> LOG.error("Could not get invocation handler " + invocationHandler +
> " for proxy " + proxy + ", or invocation handler is not closeable.");
> {code}
> Trouble is, the {{proxy}} object is usually backed by {{WritableRpcEngine}}, which will fail in the event {{toString}} is called on one of its proxy objects. See HADOOP-7694 for more details on that issue. Until that's addressed, we might as well change the log message in {{RPC.stopProxy}} to not call {{toString()}} on {{proxy}}.
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