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Posted to hdfs-issues@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2011/02/16 08:38:58 UTC
[jira] Created: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
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
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
{{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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[jira] [Commented] (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13022537#comment-13022537 ]
Hudson commented on HDFS-1629:
------------------------------
Integrated in Hadoop-Hdfs-trunk #643 (See [https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk/643/])
> 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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995224#comment-12995224 ]
Hadoop QA commented on HDFS-1629:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12471163/h1629_20110216.patch
against trunk revision 1071023.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed these core unit tests:
org.apache.hadoop.hdfs.server.datanode.TestBlockReport
org.apache.hadoop.hdfs.server.namenode.TestReplicationPolicy
org.apache.hadoop.hdfs.TestFileConcurrentReader
-1 contrib tests. The patch failed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/166//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/166//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/166//console
This message is automatically generated.
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h1629_20110216.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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995720#comment-12995720 ]
Tsz Wo (Nicholas), SZE commented on HDFS-1629:
----------------------------------------------
Created MAPREDUCE-2334 to update {{BlockPlacementPolicyRaid}}.
> 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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[jira] Resolved: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE resolved HDFS-1629.
------------------------------------------
Resolution: Fixed
MAPREDUCE-2334 is committed. Feel free to reopen this if you find any problem.
> 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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Status: Patch Available (was: Open)
Thanks Dhruba for review the patch.
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> 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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Attachment: h1629_20110216.patch
h1629_20110216.patch: added a new method.
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h1629_20110216.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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Attachment: h1629_20110217.patch
h1629_20110217.patch: fixed the new unit test.
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> 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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995710#comment-12995710 ]
Tsz Wo (Nicholas), SZE commented on HDFS-1629:
----------------------------------------------
Let me take a look. The fix seems obvious.
> 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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Status: Open (was: Patch Available)
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> 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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[jira] Reopened: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Todd Lipcon (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon reopened HDFS-1629:
-------------------------------
> 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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Resolution: Fixed
Fix Version/s: 0.23.0
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
I have committed this.
> 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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Todd Lipcon (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995704#comment-12995704 ]
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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Status: Patch Available (was: Open)
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h1629_20110216.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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[jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------
Component/s: (was: hdfs client)
(was: data-node)
name-node
> 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
> 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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "dhruba borthakur (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995445#comment-12995445 ]
dhruba borthakur commented on HDFS-1629:
----------------------------------------
+1, looks fine to me.
> 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: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h1629_20110216.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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995696#comment-12995696 ]
Hudson commented on HDFS-1629:
------------------------------
Integrated in Hadoop-Hdfs-trunk-Commit #544 (See [https://hudson.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/544/])
HDFS-1629. Add a method to BlockPlacementPolicy for keeping the chosen nodes in the output array.
> 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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[jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy
for not removing the chosen nodes
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995654#comment-12995654 ]
Hadoop QA commented on HDFS-1629:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12471247/h1629_20110217.patch
against trunk revision 1071023.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/169//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/169//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/169//console
This message is automatically generated.
> 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
> 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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