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Posted to issues@ozone.apache.org by "Arpit Agarwal (Jira)" <ji...@apache.org> on 2020/07/31 20:21:00 UTC
[jira] [Updated] (HDDS-2949) mkdir : store directory entries in a
separate table
[ https://issues.apache.org/jira/browse/HDDS-2949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arpit Agarwal updated HDDS-2949:
--------------------------------
Status: Patch Available (was: Open)
> mkdir : store directory entries in a separate table
> ---------------------------------------------------
>
> Key: HDDS-2949
> URL: https://issues.apache.org/jira/browse/HDDS-2949
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Components: Ozone Manager
> Reporter: Supratim Deka
> Assignee: Rakesh Radhakrishnan
> Priority: Major
> Labels: backward-incompatible, pull-request-available
>
> As of HDDS-2940, all the directories from the path prefix get created as entries in the key table. as per the namespace proposal attached to HDDS-2939, directory entries need to be stored in a separate "directory" table. Files will continue to be stored in the key table, which can be thought of as the "file" table.
> The advantage of a separate directory table is to make directory lookup more efficient - the entire table would fit into memory for a typical file based dataset.
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