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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13103) Group resolution from LDAP may fail on javax.naming.ServiceUnavailableException
Date Thu, 05 May 2016 18:58:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15272848#comment-15272848
] 

Chris Nauroth commented on HADOOP-13103:
----------------------------------------

Hello [~szetszwo].

Something that has been bugging me for a while is that we also don't support timeouts on these
LDAP connections.  This page has documentation on how to set the timeouts through the JNDI
APIs.

https://docs.oracle.com/javase/tutorial/jndi/newstuff/readtimeout.html

Would you be interested in doing timeouts as part of this patch, or do you prefer if I file
a separate JIRA for timeouts?  I'm fine either way, and I can help code review whatever you
decide to do here.

Thanks!


> Group resolution from LDAP may fail on javax.naming.ServiceUnavailableException
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-13103
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13103
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>            Priority: Minor
>         Attachments: c13103_20160505.patch
>
>
> According to the [javadoc|https://docs.oracle.com/javase/7/docs/api/javax/naming/ServiceUnavailableException.html],
ServiceUnavailableException is thrown when attempting to communicate with a directory or naming
service and that service is not available. It might be unavailable for different reasons.
For example, the server might be too busy to service the request, or the server might not
be registered to service any requests, etc.
> We should retry on it.



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