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https://issues.apache.org/jira/browse/HDFS-11640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Douglas updated HDFS-11640:
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Attachment: HDFS-11640-HDFS-9806.003.patch
Rebased patch, made a minor tweak to the open in {{ProvidedReplica}} to fail if
the {{PathHandle}} is present, but the underlying {{FileSystem}} claims not to
support it. If the handle was obtained from the FS, it's probably a
misconfiguration if it fails to resolve later.
As followup, it may make sense to propagate the {{BlockAlias}}, rather than the
{{FileRegion}} fields as arguments. Similarly, the {{PathHandle}} could replace
the URI, since it should only resolve if its referent is unmodified. These
changes are broader, and can be deferred.
> [READ] Datanodes should use a unique identifier when reading from external
> stores
> ---------------------------------------------------------------------------------
>
> Key: HDFS-11640
> URL: https://issues.apache.org/jira/browse/HDFS-11640
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Virajith Jalaparti
> Attachments: HDFS-11640-HDFS-9806.001.patch,
> HDFS-11640-HDFS-9806.002.patch, HDFS-11640-HDFS-9806.003.patch
>
>
> Use a unique identifier when reading from external stores to ensure that
> datanodes read the correct (version of) file.
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