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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-583) DataNode should enforce a max block size
Date Wed, 02 Sep 2009 00:40:32 GMT

    [ https://issues.apache.org/jira/browse/HDFS-583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750205#action_12750205
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Tsz Wo (Nicholas), SZE commented on HDFS-583:
---------------------------------------------

Should this also be enforced in the NameNode?  Otherwise, we might be able to create a file
with some huge block size but not able to write anything (since Datanodes forbids).

> DataNode should enforce a max block size
> ----------------------------------------
>
>                 Key: HDFS-583
>                 URL: https://issues.apache.org/jira/browse/HDFS-583
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>            Reporter: Hairong Kuang
>
> When DataNode creates a replica, it should enforce a max block size, so clients can't
go crazy. One way of enforcing this is to make BlockWritesStreams to be filter steams that
check the block size.

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