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https://issues.apache.org/jira/browse/HDFS-17540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yu Zhang updated HDFS-17540:
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Affects Version/s: 3.3.6
(was: 2.8.0)
> Namenode retry to warmup EDEK cache forever
> --------------------------------------------
>
> Key: HDFS-17540
> URL: https://issues.apache.org/jira/browse/HDFS-17540
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: encryption, namenode
> Affects Versions: 3.3.6
> Reporter: Yu Zhang
> Priority: Major
> Labels: pull-request-available
>
> https://issues.apache.org/jira/browse/HDFS-9405 adds a background thread to
> pre-warm EDEK cache.
> However this fails and retries continuously if key retrieval fails for one
> encryption zone. In our usecase, we have temporarily removed keys for certain
> encryption zones. Currently namenode and kms log is filled up with errors
> related to background thread retrying warmup for ever .
> The pre-warm thread should
> * Continue to refresh other encryption zones even if it fails for one
> * Should retry only if it fails for all encryption zones, which will be the
> case when kms is down.
>
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