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https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995704#comment-12995704
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Todd Lipcon commented on HDFS-1629:
-----------------------------------
This patch seems to have broken the MR contrib build:
[javac]
/data/1/scratch/patchqueue/patch-worker-32764/patch_62/svnrepo/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/BlockPlacementPolicyRaid.java:50:
org.apache.hadoop.hdfs.server.namenode.BlockPlacementPolicyRaid is not
abstract and does not override abstract method
chooseTarget(java.lang.String,int,org.apache.hadoop.hdfs.server.namenode.DatanodeDescriptor,java.util.List<org.apache.hadoop.hdfs.server.namenode.DatanodeDescriptor>,boolean,java.util.HashMap<org.apache.hadoop.net.Node,org.apache.hadoop.net.Node>,long)
in org.apache.hadoop.hdfs.server.namenode.BlockPlacementPolicy
[javac] public class BlockPlacementPolicyRaid extends BlockPlacementPolicy {
[javac] ^
as well as a couple other errors there. Should we revert this until we have a
fix ready for MR?
> Add a method to BlockPlacementPolicy for not removing the chosen nodes
> ----------------------------------------------------------------------
>
> Key: HDFS-1629
> URL: https://issues.apache.org/jira/browse/HDFS-1629
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Fix For: 0.23.0
>
> Attachments: h1629_20110216.patch, h1629_20110217.patch
>
>
> {{BlockPlacementPolicy}} supports chosen nodes in some of the
> {{chooseTarget(..)}} methods. The chosen nodes will be removed from the
> output array. For adding new datanodes to an existing pipeline, it is useful
> to keep the chosen nodes in the output array.
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