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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3006) DataNode sends wrong length in header while pipelining.
Date Wed, 12 Mar 2008 20:10:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12578006#action_12578006

Raghu Angadi commented on HADOOP-3006:

This affects pipelining while replicating data, and not when client writes the data first
time. That explains why benchmark performance was not affected.

> DataNode sends wrong length in header while pipelining.
> -------------------------------------------------------
>                 Key: HADOOP-3006
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3006
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
>             Fix For: 0.17.0
> Bug introduced by HADOOP-2758. This part is removed in HADOOP-1702, but 1702 is not yet
ready. I will submit a patch. 
> The first datanode in the pipeline receives data with non-interleaving checksum and sends
interleaving checksum to mirror (this mismatch is temporary till HADOOP-1702). The packet
size differs in these two cases and DataNode did not correct the packet size in the header.

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