Github user nielsbasjes commented on the pull request: https://github.com/apache/flink/pull/1342#issuecomment-155708227 I created a test topology that puts the current time in an HBase cell several times per second. In the cluster I did this on HBase is configured to use Kerberos and the Kerberos tickets expire after 10 hours. I let this running for 22:15 (so more than twice the expire time) and it continues to successfully update the column in HBase. So from my standpoint this patch is ready to be committed.
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