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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HDFS-5236) Change PathBasedCacheDirective APIs to be a single value rather than batch API
Date Fri, 20 Sep 2013 23:56:51 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on HDFS-5236 started by Andrew Wang.

> Change PathBasedCacheDirective APIs to be a single value rather than batch API
> ------------------------------------------------------------------------------
>
>                 Key: HDFS-5236
>                 URL: https://issues.apache.org/jira/browse/HDFS-5236
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>    Affects Versions: HDFS-4949
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>         Attachments: hdfs-5236-1.patch
>
>
> It's kind of awkward that APIs like {{addPathBasedCacheDirective}} take a list of Directives
and return a list of Fallibles, since end users don't see a checked exception and need to
check each Fallible. It also complicates HDFS code. Let's think about switching these APIs
to instead take only a single Directive.

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