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https://issues.apache.org/jira/browse/HDFS-7672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14529516#comment-14529516
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Zhe Zhang commented on HDFS-7672:
---------------------------------

I started reviewing HDFS-8288 patch but it seems outdated. It might be easier 
to close it as dup and just update this JIRA's description / summary. Below is 
my half-finished review for HDFS-8288.

{quote}
Thanks Nicholas for the work. The patch looks good overall and I like the idea 
of having a {{Coordinator}} class.

# Patch needs a minor rebase
# Patch needs to incorporate naming changes discussed under HDFS-7672
# {{endBlocks}} should be a list of queues (HDFS-7672 patch does it right)
# {{coordinator}} can be converted to a local variable
{quote}

> Erasure Coding: handle write failure for stripping coding blocks
> ----------------------------------------------------------------
>
>                 Key: HDFS-7672
>                 URL: https://issues.apache.org/jira/browse/HDFS-7672
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>         Attachments: h7672_20150504.patch, h7672_20150504b.patch, 
> h7672_20150504c.patch, h7672_20150505.patch, h7672_20150505b.patch
>
>
> 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.



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