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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8195) Erasure coding: Fix file quota change when we complete/commit the striped blocks
Date Wed, 30 Sep 2015 19:36:02 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14938453#comment-14938453

Hudson commented on HDFS-8195:

FAILURE: Integrated in Hadoop-Mapreduce-trunk #2408 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2408/])
HDFS-8195. Erasure coding: Fix file quota change when we complete/commit (zhezhang: rev 9798065cbb5cf5de94fe8e17ac22388f70e12dd6)
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-EC-7285.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestQuotaWithStripedBlocks.java

> Erasure coding: Fix file quota change when we complete/commit the striped blocks
> --------------------------------------------------------------------------------
>                 Key: HDFS-8195
>                 URL: https://issues.apache.org/jira/browse/HDFS-8195
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: HDFS-7285
>            Reporter: Takuya Fukudome
>            Assignee: Takuya Fukudome
>             Fix For: HDFS-7285
>         Attachments: HDFS-8195-HDFS-7285.2.patch, HDFS-8195-HDFS-7285.3.patch, HDFS-8195.1.patch
> Fix file quota change when converting a file with striped blocks from complete/under-construction
to under-construction/complete state. When we add a new block (FSDirectory#addBlock) we update
the quota using the full block size (since we do not know how much data the user will write
> the new block), and when we complete/commit the block, the quota is updated based on
the block's real size (FSNamesystem#commitOrCompleteLastBlock). Currently these two places
only support contiguous blocks (using INodeFile#getPreferredBlockSize as the full block size).
We should update them for striped blocks.

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