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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Deleted] (HDFS-9976) CLONE - Erasure Coding: consolidate streamer coordination logic and handle failure when writing striped blocks
Date Tue, 15 Mar 2016 09:42:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinayakumar B deleted HDFS-9976:
--------------------------------


> CLONE - Erasure Coding: consolidate streamer coordination logic and handle failure when
writing striped blocks
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-9976
>                 URL: https://issues.apache.org/jira/browse/HDFS-9976
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: dragon
>            Assignee: Tsz Wo Nicholas Sze
>             Fix For: HDFS-7285
>
>
> In *stripping* case, for (6, 3)-Reed-Solomon, a client writes to 6 data blocks and 3
parity blocks concurrently.  We need to handle datanode or network failures when writing a
EC BlockGroup.
> We also refactor the existing code in DFSStripedOutputStream and StripedDataStreamer.



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