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https://issues.apache.org/jira/browse/HDFS-3701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13450330#comment-13450330
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Uma Maheswara Rao G commented on HDFS-3701:
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Thanks N, for the update on patch. sorry for the late on this.
@Nicholas, I think both patches may required to apply. First we have to apply
other patch and then HDFS-3701.ontopof.v1.patch. Because he mentioned
'ontopof'.
Today, If I get time, I will merge both and provide a single one after
reviewing his changes. After that it should be possible for you to apply and
check. Thanks a lot, Nicholas for your time.
> HDFS may miss the final block when reading a file opened for writing if one
> of the datanode is dead
> ---------------------------------------------------------------------------------------------------
>
> Key: HDFS-3701
> URL: https://issues.apache.org/jira/browse/HDFS-3701
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 1.0.3
> Reporter: nkeywal
> Priority: Critical
> Attachments: HDFS-3701.ontopof.v1.patch, HDFS-3701.patch
>
>
> When the file is opened for writing, the DFSClient calls one of the datanode
> owning the last block to get its size. If this datanode is dead, the socket
> exception is shallowed and the size of this last block is equals to zero.
> This seems to be fixed on trunk, but I didn't find a related Jira. On 1.0.3,
> it's not fixed. It's on the same area as HDFS-1950 or HDFS-3222.
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