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https://issues.apache.org/jira/browse/HDFS-9206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14946208#comment-14946208
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Jing Zhao commented on HDFS-9206:
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+1. I will commit this after Jenkins approves.
> 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
> Assignee: Walter Su
> Priority: Trivial
> Attachments: HDFS-9206.patch
>
>
> {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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