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https://issues.apache.org/jira/browse/HADOOP-13105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15272932#comment-15272932
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Chris Nauroth commented on HADOOP-13105:
----------------------------------------

This document discusses the JNDI API calls that can be used to set timeouts.  I 
think we'd want the actual timeout values to be configurable.

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


> Support timeouts in LDAP queries in LdapGroupsMapping.
> ------------------------------------------------------
>
>                 Key: HADOOP-13105
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13105
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>            Reporter: Chris Nauroth
>
> {{LdapGroupsMapping}} currently does not set timeouts on the LDAP queries.  
> This can create a risk of a very long/infinite wait on a connection.



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