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Date: Thu, 15 Oct 2009 17:34:31 -0700 (PDT)
From: "Sanjay Radia (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Commented: (HDFS-222) Support for concatenating of files
 into a single file
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    [ https://issues.apache.org/jira/browse/HDFS-222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12766348#action_12766348 ] 

Sanjay Radia commented on HDFS-222:
-----------------------------------

Handling quotas correctly is going to be hard. Especially given the new problems we saw in HDFS-677 wrt to renaming
between directories when the quota is exhausted in the target.
While this can be coded, I don't think the complexity is worth it. 
Perhaps we should restrict the operation to concat files in the same directory.

> Support for concatenating of files into a single file
> -----------------------------------------------------
>
>                 Key: HDFS-222
>                 URL: https://issues.apache.org/jira/browse/HDFS-222
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Venkatesh S
>            Assignee: Boris Shkolnik
>         Attachments: HDFS-222-1.patch, HDFS-222-2.patch, HDFS-222-3.patch, HDFS-222-4.patch, HDFS-222-5.patch, HDFS-222-6.patch, HDFS-222-7.patch, HDFS-222.patch
>
>
> An API to concatenate files of same size and replication factor on HDFS into a single larger file.

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