[
https://issues.apache.org/jira/browse/HDFS-1034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844269#action_12844269
]
Zlatin Balevsky commented on HDFS-1034:
---------------------------------------
How complicated would it be to store the checksum file on a separate mount
point? In JBOD configurations this will enable both reads to happen
simultaneously.
> Enhance datanode to read data and checksum file in parallel
> -----------------------------------------------------------
>
> Key: HDFS-1034
> URL: https://issues.apache.org/jira/browse/HDFS-1034
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
>
> In the current HDFS implementation, a read of a block issued to the datanode
> results in a disk access to the checksum file followed by a disk access to
> the checksum file. It would be nice to be able to do these two IOs in
> parallel to reduce read latency.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
