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Pig >> mail # dev >> Review Request 14601: PIG-3502 Initial implementation of TezLauncher

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Review Request 14601: PIG-3502 Initial implementation of TezLauncher

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Review request for pig, Daniel Dai, Mark Wagner, and Rohini Palaniswamy.
Bugs: PIG-3502
Repository: pig-git

Initial implementation of TezLauncher. The patch includes the following changes:
- Refactors Launcher and MapReduceLauncher. Basically, I moved what's MR-specific to MapReduceLauncher and kept what's common in Launcher.
- Removes kill() method from ExecutionEngine interface. It was used merely by Launcher, and it didn't seem useful.
- Implements the DAG submission of TezLauncher. Basically, I overrode the submit() method in TezJob (extension of ControlledJob) that calls DAGClient.submit().
- Adds a skeleton TezStats class that extends PigStats. This class needs to be implemented to monitor job status after submission.
- Adds a unit test called TestTezLauncher. For now, all it does is to compile queries and submit a DAG. More meaningful unit tests will be added after TezStats is implemented.
- Adds a TezLocalExecType. To start up a YARN mini cluster, I needed non-local Tez mode. So I created "tez_local" and "tez" modes.
- Whitespace and indentation fixes.

  build.xml 0439082
  src/META-INF/services/org.apache.pig.ExecType e995cd5
  src/org/apache/pig/backend/executionengine/ExecutionEngine.java 7d480d7
  src/org/apache/pig/backend/hadoop/executionengine/HExecutionEngine.java b886f9d
  src/org/apache/pig/backend/hadoop/executionengine/Launcher.java 77543c2
  src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/MapReduceLauncher.java f3be738
  src/org/apache/pig/backend/hadoop/executionengine/tez/TezExecType.java 8315e76
  src/org/apache/pig/backend/hadoop/executionengine/tez/TezJob.java 04ffba0
  src/org/apache/pig/backend/hadoop/executionengine/tez/TezJobControlCompiler.java b7d4d98
  src/org/apache/pig/backend/hadoop/executionengine/tez/TezLauncher.java ff9e950
  src/org/apache/pig/backend/hadoop/executionengine/tez/TezLocalExecType.java e69de29
  src/org/apache/pig/backend/hadoop/executionengine/tez/TezStats.java e69de29
  src/org/apache/pig/impl/PigContext.java 225526f
  src/org/apache/pig/impl/util/Utils.java 3720c94
  test/org/apache/pig/tez/TestTezCompiler.java b9e6b48
  test/org/apache/pig/tez/TestTezJobControlCompiler.java f14d49d
  test/org/apache/pig/tez/TestTezLauncher.java e69de29

Diff: https://reviews.apache.org/r/14601/diff/

TestTezLauncher is added.

Cheolsoo Park