Robert Kanter created MAPREDUCE-5529:
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Summary: Binary incompatibilities in
mapred.lib.TotalOrderPartitioner between branch-1 and branch-2
Key: MAPREDUCE-5529
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5529
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv1, mrv2
Affects Versions: 2.1.1-beta
Reporter: Robert Kanter
Assignee: Robert Kanter
Priority: Blocker
{{mapred.lib.TotalPartitioner}} in branch-1 has these two methods:
{code:java}
public static String getPartitionFile(JobConf job)
public static void setPartitionFile(JobConf job, Path p)
{code}
In branch-2, {{mapred.lib.TotalPartitioner}} is now a subclass of
{{mapreduce.lib.TotalPartitioner}}, from which it inherits the similar methods:
{code:java}
public static String getPartitionFile(Configuration conf)
public static void setPartitionFile(Configuration conf, Path p)
{code}
This means that any code that does either of the following:
{code:java}
TotalOrderPartitioner.setPartitionFile(new JobConf(), new Path("/"));
String str = TotalOrderPartitioner.getPartitionFile(new JobConf());
{code}
will not be binary compatible (that is, if compiled against branch-1, it will
throw a {{NoSuchMethodError}} if run against branch-2).
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