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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11537) Block Storage : add cache layer
Date Mon, 20 Mar 2017 17:53:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15933178#comment-15933178
] 

Chen Liang commented on HDFS-11537:
-----------------------------------

Thanks [~xyao] for the comments! But this patch still requires HDFS-11361 to be checked in
first. This is where the Jenkins error came from. [~anu] could you please take a look on HDFS-11361?

> Block Storage : add cache layer
> -------------------------------
>
>                 Key: HDFS-11537
>                 URL: https://issues.apache.org/jira/browse/HDFS-11537
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-11537-HDSF-7240.001.patch, HDFS-11537-HDSF-7240.002.patch
>
>
> This JIRA adds the cache layer. Specifically, this JIRA implements the cache interface
in HDFS-11361 and adds the code that actually talks to containers. The upper layer can simply
view the storage as a cache with simple put and get interface, while in the backend the get
and put are actually talking to containers. This is a critical part to the cblock performance.




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