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https://issues.apache.org/jira/browse/HDFS-11885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16142232#comment-16142232
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Rushabh S Shah commented on HDFS-11885:
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bq. Rushabh, we'd still appreciate your patch if you have it.
I apologize for not replying earlier.
I will create a new jira as soon as I have some cycles to upmerge internal
working 2.8 patch with trunk and writing new test cases.
> createEncryptionZone should not block on initializing EDEK cache
> ----------------------------------------------------------------
>
> Key: HDFS-11885
> URL: https://issues.apache.org/jira/browse/HDFS-11885
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: encryption
> Affects Versions: 2.6.5
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Attachments: HDFS-11885.001.patch, HDFS-11885.002.patch,
> HDFS-11885.003.patch, HDFS-11885.004.patch
>
>
> When creating an encryption zone, we call {{ensureKeyIsInitialized}}, which
> calls {{provider.warmUpEncryptedKeys(keyName)}}. This is a blocking call,
> which attempts to fill the key cache up to the low watermark.
> If the KMS is down or slow, this can take a very long time, and cause the
> createZone RPC to fail with a timeout.
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