[HBASE-13028] Cleanup mapreduce API changes - ASF JIRA

XML

Word

Printable

JSON

Release Note:

Hide
The bindings for reading data from HBase using both the Hadoop MapReduce mapred and mapreduce libraries now are initialized the same way. Subclasses wishing to build on TableInputFormatBase that use the new initialize method will have access to job configuration information.

Show
The bindings for reading data from HBase using both the Hadoop MapReduce mapred and mapreduce libraries now are initialized the same way. Subclasses wishing to build on TableInputFormatBase that use the new initialize method will have access to job configuration information.

The API changes made in ~~HBASE-12798~~ need to be cleaned up so their common use makes more sense.

initialize should take some kind of configuration object that can be used in setting up a Connection (e.g. JobConf)
initialize should be called at the start of getSplits and getRecordReader rather than across the class when a member is needed
the same changes should be present in the mapred package since it is not longer deprecated
examples should rely on idiomatic MapReduce (specifically they should not be relying on JobConfigurable to get a JobConf instance)

links to

reviewboard