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https://issues.apache.org/jira/browse/HADOOP-1274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arun C Murthy updated HADOOP-1274:
----------------------------------
Status: Open (was: Patch Available)
Amareshwari, the patch still doesn't deprecate {{ClusterStatus.getMaxTasks}}...
{noformat}
Index: src/java/org/apache/hadoop/mapred/ClusterStatus.java
===================================================================
--- src/java/org/apache/hadoop/mapred/ClusterStatus.java (revision
593416)
+++ src/java/org/apache/hadoop/mapred/ClusterStatus.java (working copy)
@@ -111,10 +117,31 @@
* @return the maximum capacity for running tasks in the cluster.
*/
public int getMaxTasks() {
- return max_tasks;
+ LOG.warn("ClusterStatus.getMaxTasks()is deprecated. Use " +
+ "ClusterStatus.getMaxMapTasks() and " +
+ "ClusterStatus.getMaxReduceTasks() instead.");
+ return (max_map_tasks + max_reduce_tasks);
+ }
{noformat}
should look like:
{noformat}
Index: src/java/org/apache/hadoop/mapred/ClusterStatus.java
===================================================================
--- src/java/org/apache/hadoop/mapred/ClusterStatus.java (revision
593416)
+++ src/java/org/apache/hadoop/mapred/ClusterStatus.java (working copy)
@@ -111,10 +117,31 @@
* @return the maximum capacity for running tasks in the cluster.
+ * @deprecated Use [EMAIL PROTECTED] #getMaxMapTasks()} and/or [EMAIL
PROTECTED] #getMaxReduceTasks()}
*/
public int getMaxTasks() {
- return max_tasks;
+ LOG.warn("ClusterStatus.getMaxTasks()is deprecated. Use " +
+ "ClusterStatus.getMaxMapTasks() and " +
+ "ClusterStatus.getMaxReduceTasks() instead.");
+ return (max_map_tasks + max_reduce_tasks);
+ }
{noformat}
Also, could you consider submitting a test case for this one? Thanks!
> Configuring different number of mappers and reducers per TaskTracker
> --------------------------------------------------------------------
>
> Key: HADOOP-1274
> URL: https://issues.apache.org/jira/browse/HADOOP-1274
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Reporter: Koji Noguchi
> Assignee: Amareshwari Sri Ramadasu
> Fix For: 0.16.0
>
> Attachments: patch-1274.txt, patch-1274.txt, patch-1274.txt,
> patch-1274.txt
>
>
> Depending on the application, it sometimes make sense to have more mappers
> than reducers assigned to each node.
> (I'm assuming user either has a dedicated cluster or use HOD.)
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