Package | Description |
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org.apache.hadoop.hive.ql.exec |
Hive QL execution tasks, operators, functions and other handlers.
|
org.apache.hadoop.hive.ql.exec.mr | |
org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast | |
org.apache.hadoop.hive.ql.io.merge | |
org.apache.hadoop.hive.ql.io.rcfile.stats | |
org.apache.hadoop.hive.ql.io.rcfile.truncate | |
org.apache.hadoop.hive.ql.optimizer.physical |
Class and Description |
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ExecDriver
ExecDriver is the central class in co-ordinating execution of any map-reduce task.
|
ExecMapperContext |
Class and Description |
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ExecDriver
ExecDriver is the central class in co-ordinating execution of any map-reduce task.
|
ExecMapperContext |
HadoopJobExecHelper |
HadoopJobExecHook |
Class and Description |
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ExecMapperContext |
Class and Description |
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HadoopJobExecHook |
Class and Description |
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HadoopJobExecHelper |
HadoopJobExecHook |
Class and Description |
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HadoopJobExecHelper |
HadoopJobExecHook |
Class and Description |
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MapRedTask
Extension of ExecDriver:
- can optionally spawn a map-reduce task from a separate jvm
- will make last minute adjustments to map-reduce job parameters, viz:
* estimating number of reducers
* estimating whether job should run locally
|
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