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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4807) Allow MapOutputBuffer to be pluggable
Date Thu, 29 Nov 2012 21:16:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506805#comment-13506805
] 

Chris Douglas commented on MAPREDUCE-4807:
------------------------------------------

Asokan, can you explain this part of the diff?
{noformat}
-    final int partitions;
-    final JobConf job;
-    final TaskReporter reporter;
-    final Class<K> keyClass;
-    final Class<V> valClass;
-    final RawComparator<K> comparator;
-    final SerializationFactory serializationFactory;
-    final Serializer<K> keySerializer;
-    final Serializer<V> valSerializer;
-    final CombinerRunner<K,V> combinerRunner;
-    final CombineOutputCollector<K, V> combineCollector;
+    private int partitions;
+    private JobConf job;
+    private TaskReporter reporter;
+    private Class<K> keyClass;
+    private Class<V> valClass;
+    private RawComparator<K> comparator;
+    private SerializationFactory serializationFactory;
+    private Serializer<K> keySerializer;
+    private Serializer<V> valSerializer;
+    private CombinerRunner<K,V> combinerRunner;
+    private CombineOutputCollector<K, V> combineCollector;
{noformat}
                
> Allow MapOutputBuffer to be pluggable
> -------------------------------------
>
>                 Key: MAPREDUCE-4807
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4807
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>    Affects Versions: 2.0.2-alpha
>            Reporter: Arun C Murthy
>            Assignee: Mariappan Asokan
>             Fix For: 2.0.3-alpha, MR-2454
>
>         Attachments: COMBO-mapreduce-4809-4807.patch, COMBO-mapreduce-4809-4807.patch,
COMBO-mapreduce-4809-4807.patch, mapreduce-4807.patch, mapreduce-4807.patch, mapreduce-4807.patch,
mapreduce-4807.patch, mapreduce-4807.patch, mapreduce-4807.patch
>
>
> Allow MapOutputBuffer to be pluggable

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