[jira] [Commented] (SOLR-8538) Kerberos ticket is not renewed automatically when storing index on secured HDFS

["Kevin Risden (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-8538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15746074#comment-15746074 ] 

Kevin Risden commented on SOLR-8538:
------------------------------------

Just want to add a note here in case anyone else stumbles across this:

The Kerberos ticket renewal issue is fixed as stated above in Hadoop 2.6.1 and 2.7.0. Solr 6.2.0 updated to Hadoop 2.7.2 dependencies. As far as I can tell, if you are using > JDK 1.7.9_79 or JDK 1.8 then you need to use Hadoop 2.6.1+ dependencies for Solr <6.2.0 and want to store indices on Kerberized HDFS.

> Kerberos ticket is not renewed automatically when storing index on secured HDFS
> -------------------------------------------------------------------------------
>
>                 Key: SOLR-8538
>                 URL: https://issues.apache.org/jira/browse/SOLR-8538
>             Project: Solr
>          Issue Type: Bug
>          Components: Hadoop Integration, hdfs, security
>    Affects Versions: 5.2.1
>         Environment: HDP 2.3
>            Reporter: Andrew Bumstead
>
> It seems that when Solr is configured to stores its index files on a Kerberized HDFS, there is no built in mechanism by which Solr will renew its Kerberos ticket before it expires.
> The impact is that after the default ticket lifetime has elapsed (typically 24 hours) Solr becomes unable to connect to HDFS to read/write and requires a restart or a manual kinit command to be run.



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