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https://issues.apache.org/jira/browse/HDFS-1783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HDFS-1783:
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Attachment: HDFS-1783-trunk-v2.patch
Patch rebased for HDFS-744.
* Added a first simple test
* Fixed a bunch of problems I had introduced when I ported the patch over
> Ability for HDFS client to write replicas in parallel
> -----------------------------------------------------
>
> Key: HDFS-1783
> URL: https://issues.apache.org/jira/browse/HDFS-1783
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: dhruba borthakur
> Assignee: Lars Hofhansl
> Attachments: HDFS-1783-trunk-v2.patch, HDFS-1783-trunk.patch
>
>
> The current implementation of HDFS pipelines the writes to the three
> replicas. This introduces some latency for realtime latency sensitive
> applications. An alternate implementation that allows the client to write all
> replicas in parallel gives much better response times to these applications.
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