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Date: Fri, 17 Jun 2016 19:49:05 +0000 (UTC)
From: "Colin Patrick McCabe (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12962494.1461653191000.26008.1466192945260@Atlassian.JIRA>
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Subject: [jira] [Updated] (HDFS-10328) Add per-cache-pool default
 replication num configuration
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archived-at: Fri, 17 Jun 2016 19:49:12 -0000


     [ https://issues.apache.org/jira/browse/HDFS-10328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Colin Patrick McCabe updated HDFS-10328:
----------------------------------------
    Attachment: HDFS-10328.004.patch

Reposting patch 004 (and rebasing on trunk) to get a Jenkins run

> Add per-cache-pool default replication num configuration
> --------------------------------------------------------
>
>                 Key: HDFS-10328
>                 URL: https://issues.apache.org/jira/browse/HDFS-10328
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: caching
>            Reporter: xupeng
>            Assignee: xupeng
>            Priority: Minor
>             Fix For: 2.3.0
>
>         Attachments: HDFS-10328.001.patch, HDFS-10328.002.patch, HDFS-10328.003.patch, HDFS-10328.004.patch, HDFS-10328.004.patch
>
>
> For now, hdfs cacheadmin can not set a default replication num for cached directive in the same cachepool. Each cache directive added in the same cache pool should set their own replication num individually. 
> Consider this situation, we add daily hive table into cache pool "hive" .Each time i should set the same replication num for every table directive in the same cache pool.  
> I think we should enable setting a default replication num for a cachepool that every cache directive in the pool can inherit replication configuration from the pool. Also cache directive can override replication configuration explicitly by calling "add & modify  directive -replication" command from cli.    


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