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From "Walter Su (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9206) Inconsistent default value of dfs.datanode.stripedread.buffer.size
Date Wed, 07 Oct 2015 02:22:26 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Walter Su updated HDFS-9206:
----------------------------
    Issue Type: Sub-task  (was: Bug)
        Parent: HDFS-8031

> Inconsistent default value of dfs.datanode.stripedread.buffer.size
> ------------------------------------------------------------------
>
>                 Key: HDFS-9206
>                 URL: https://issues.apache.org/jira/browse/HDFS-9206
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: erasure-coding
>            Reporter: Walter Su
>            Priority: Trivial
>
> {noformat}
> DFS_DATANODE_STRIPED_READ_BUFFER_SIZE_DEFAULT = 64 * 1024;
> <property>
>   <name>dfs.datanode.stripedread.buffer.size</name>
>   <value>262144</value>
>   <description>Datanode striped read buffer size.
>   </description>
> </property>
> {noformat}
> Once before we used 256k cellSize, now we changed to 64k as default value.



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