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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3929) Support for Kerberos Authentication with Keytab Credential
Date Tue, 02 Aug 2016 13:56:20 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15404000#comment-15404000
] 

ASF GitHub Bot commented on FLINK-3929:
---------------------------------------

Github user mxm commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2275#discussion_r73159038
  
    --- Diff: flink-core/src/main/java/org/apache/flink/util/Preconditions.java ---
    @@ -293,6 +293,16 @@ private static String format(@Nullable String template, @Nullable
Object... args
     
     		return builder.toString();
     	}
    +
    +	/**
    +	 * Returns {@code true} if the given string is null or is the empty string.
    +	 * @param string a string reference to check
    +	 * @return {@code true} if the string is null or is the empty string
    +	 */
    +	public static boolean isNullOrEmpty(@Nullable String string) {
    --- End diff --
    
    Yes, even better :)


> Support for Kerberos Authentication with Keytab Credential
> ----------------------------------------------------------
>
>                 Key: FLINK-3929
>                 URL: https://issues.apache.org/jira/browse/FLINK-3929
>             Project: Flink
>          Issue Type: New Feature
>            Reporter: Eron Wright 
>            Assignee: Vijay Srinivasaraghavan
>              Labels: kerberos, security
>   Original Estimate: 672h
>  Remaining Estimate: 672h
>
> _This issue is part of a series of improvements detailed in the [Secure Data Access|https://docs.google.com/document/d/1-GQB6uVOyoaXGwtqwqLV8BHDxWiMO2WnVzBoJ8oPaAs/edit?usp=sharing]
design doc._
> Add support for a keytab credential to be associated with the Flink cluster, to facilitate:
> - Kerberos-authenticated data access for connectors
> - Kerberos-authenticated ZooKeeper access
> Support both the standalone and YARN deployment modes.
>  



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