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https://issues.apache.org/jira/browse/HDFS-14390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813586#comment-16813586
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Daryn Sharp commented on HDFS-14390:
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Jason asked me to take a look. Which change actually fixed the unavailability
of the kerberos credentials (ugi context) in the block report processing
thread? All I see are formerly cited unrelated acl/authz changes that really
should be a separate jira.
The only ugi context change I see is in {{FSTreeWalk}} which is part of a tool.
How does that affect the block report processing thread? (Aside: I'm rather
astounded that block report processing is apparently calling out to a DN RPC
service?)
> Provide kerberos support for AliasMap service used by Provided storage
> ----------------------------------------------------------------------
>
> Key: HDFS-14390
> URL: https://issues.apache.org/jira/browse/HDFS-14390
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ashvin
> Assignee: Ashvin
> Priority: Major
> Attachments: HDFS-14390.001.patch, HDFS-14390.002.patch,
> HDFS-14390.003.patch
>
>
> With {{PROVIDED}} storage (-HDFS-9806)-, HDFS can address data stored in
> external storage systems. This feature is not supported in a secure HDFS
> cluster. The {{AliasMap}} service does not support kerberos, and as a result
> the cluster nodes will fail to communicate with it. This JIRA is to enable
> kerberos support for the {{AliasMap}} service.
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