[
https://issues.apache.org/jira/browse/HADOOP-8469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291515#comment-13291515
]
Hudson commented on HADOOP-8469:
--------------------------------
Integrated in Hadoop-Hdfs-trunk-Commit #2408 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2408/])
HADOOP-8469. Make NetworkTopology class pluggable. Contributed by Junping
Du (Revision 1347867)
Result = SUCCESS
szetszwo :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1347867
Files :
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/NetworkTopology.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/DatanodeInfo.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
> Make NetworkTopology class pluggable
> ------------------------------------
>
> Key: HADOOP-8469
> URL: https://issues.apache.org/jira/browse/HADOOP-8469
> Project: Hadoop Common
> Issue Type: Sub-task
> Affects Versions: 1.0.0, 2.0.0-alpha
> Reporter: Junping Du
> Assignee: Junping Du
> Fix For: 3.0.0
>
> Attachments: HADOOP-8469-NetworkTopology-pluggable-v2.patch,
> HADOOP-8469-NetworkTopology-pluggable-v3.patch,
> HADOOP-8469-NetworkTopology-pluggable-v4.patch,
> HADOOP-8469-NetworkTopology-pluggable-v5.patch,
> HADOOP-8469-NetworkTopology-pluggable.patch
>
>
> The class NetworkTopology is where the three-layer hierarchical topology is
> modeled in the current code base and is instantiated directly by the
> DatanodeManager and Balancer.
> To support alternative topologies, changes were make the topology class
> pluggable, that is to support using a user specified topology class specified
> in the Hadoop configuration file core-defaul.xml. The user specified topology
> class is instantiated using reflection in the same manner as other
> customizable classes in Hadoop. If no use specified topology class is found,
> the fallback is to use the NetworkTopology to preserve current behavior. To
> make it possible to reuse code in NetworkTopology several minor changes were
> made to make the class more extensible. The NetworkTopology class is
> currently annotated with @InterfaceAudience.LimitedPrivate({"HDFS",
> "MapReduce"}) and @InterfaceStability.Unstable.
> The proposed changes in NetworkTopology listed below
> 1. Some fields were changes from private to protected
> 2. Added some protected methods so that sub classes could override behavior
> 3. Added a new method,isNodeGroupAware,to NetworkTopology
> 4. The inner class InnerNode was made a package protected class to it would
> be easier to subclass
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
