Author: stack
Date: Sat Nov 7 23:03:13 2009
New Revision: 833773
URL: http://svn.apache.org/viewvc?rev=833773&view=rev
Log:
Add a note to javadoc
Modified:
hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/mapreduce/package-info.java
Modified:
hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/mapreduce/package-info.java
URL:
http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/mapreduce/package-info.java?rev=833773&r1=833772&r2=833773&view=diff
==============================================================================
---
hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/mapreduce/package-info.java
(original)
+++
hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/mapreduce/package-info.java
Sat Nov 7 23:03:13 2009
@@ -133,7 +133,8 @@
3-4 (See TotalOrderPartitioner up in hadoop for more on what this means).
To achieve total ordering, you will likely need to write a Partitioner
that is intimate with your tables key namespace and that knows how
-to distribute keys among the reducers so a total order is maintained.
+to distribute keys among the reducers so a total order is maintained
+(You need at least hadoop 0.20.1 setting your own Partitioner -- see
MAPREDUCE-565).
</p>
<p>See org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat for an example
that puts together
{...@link org.apache.hadoop.hbase.mapreduce.KeyValueSortReducer} and {...@link
org.apache.hadoop.hbase.mapreduce.HFileOutputFormat}.</p>
