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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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Virajith Jalaparti updated HDFS-11640:
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Attachment: HDFS-11640-HDFS-9806.001.patch
Attaching a PoC patch that is based on the most recent patches available for
HDFS-7878 and HDFS-6984. The patch includes the changes proposed in HDFS-7878
and HDFS-6984 (will be removed once they are committed). This also involves
making {{FileStatus}} a member of {{FileRegion}}, adding a protobuf-based
implementation of {{FileRegion}} (to be able to serialize and deserialize
easily), and renaming {{TextFileRegionFormat}} to {{LocalFileRegionFormat}} (as
it now uses binary files to store the block map).
If HDFS-7878 goes with {{open(InodeId)}} instead of {{open(FileStatus)}}, this
patch will be modified appropriately.
> 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
>
>
> Use a unique identifier when reading from external stores to ensure that
> datanodes read the correct (version of) file.
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