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https://issues.apache.org/jira/browse/HDFS-17583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Palakur Eshwitha Sai updated HDFS-17583:
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Summary: Support auto-refresh of latest ViewDFS mount configuration (was:
Support auto-refresh of latest viewDFS mount configuration)
> Support auto-refresh of latest ViewDFS mount configuration
> ----------------------------------------------------------
>
> Key: HDFS-17583
> URL: https://issues.apache.org/jira/browse/HDFS-17583
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ViewHDFS
> Reporter: Palakur Eshwitha Sai
> Assignee: Palakur Eshwitha Sai
> Priority: Major
>
> Currently, the central mount table configuration feature for viewDFS loads
> the latest mounts each time the viewDFS initialize function is called. But in
> the case of use cases with hive, hive does the call to initialize the fs only
> for the first time after HS2 restart. From then on, it fetches the
> filesystem/ resolved mount points from the cache.
> This requires HS2 restart each time some data is moved to S3 or other hadoop
> compatible file systems and a new mount-table.xml file is added to the
> viewDFS central mount config directory, which is not ideal.
> Should implement a way in which the mount table is auto loaded at specific
> intervals/ each time the central mount-table directory is updated with a new
> mount-table.xml file.
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