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https://issues.apache.org/jira/browse/HADOOP-6656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12915957#action_12915957
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Owen O'Malley commented on HADOOP-6656:
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There are two advantages for kinit:
1. The kinit re-writes the file so that later processes get the refreshed key.
2. I couldn't get the renew to work at all. It returned without actually
renewing anything. I didn't track down why it didn't work.
The disadvantage for kinit is the race condition while you are re-writing the
file.
If you want to track down why it didn't work, I can post my patch.
> Security framework needs to renew Kerberos tickets while the process is
> running
> -------------------------------------------------------------------------------
>
> Key: HADOOP-6656
> URL: https://issues.apache.org/jira/browse/HADOOP-6656
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Owen O'Malley
> Assignee: Devaraj Das
> Fix For: 0.22.0
>
> Attachments: 6656-trunk-1.patch, 6656-trunk-2.patch,
> 6656-trunk-3.patch, 6656-trunk-4.patch, 6656-trunk-4.patch,
> 6656-trunk-4.patch, 6656-trunk-4.patch, c-6656-y20-internal.patch,
> refresh.patch
>
>
> While a client process is running, there should be a thread that periodically
> renews the Kerberos credentials to ensure they don't expire.
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