Attach a fix for those:
TestMRExecutionEngine.testJobConfGeneration: caused by YARN-1748, upgrade build dependency to Hadoop 2.4.0 to solve the problem
TestFRJoin2, TestParser, TestTmpFileCompression: caused by reusing properties in MiniCluster
TestSecondarySortMR: Miss the code checking custom partitioner when doing SecondaryKeyOptimizer refactory
TestSkewedJoin: fail on mr mode, reconfig log4j in test to solve the problem
TestMRCompiler: update golden file
TestTezCompiler: update golden file
TestTezLauncher: fail on MR mode, hard code exectype to tez in test
TestCombiner: use more memory after upgrade to Hadoop 2.4.0, set heap size in test

TestTezLauncher.java - MiniGenericCluster cluster = MiniGenericCluster.buildCluster(MiniGenericCluster.EXECTYPE_TEZ); instead of System.setProperty("test.exec.type", "tez");
MRC18.gld - Is this expected? Don't think trunk has a failure in this test.
TEZC-MQ-2.gld - This change can be reverted for now. Output is different with jdk7 and jdk6. That needs to be fixed in plan printing.

TestTezLauncher.java - MiniGenericCluster cluster = MiniGenericCluster.buildCluster(MiniGenericCluster.EXECTYPE_TEZ); instead of System.setProperty("test.exec.type", "tez");

Sure, will change

MRC18.gld - Is this expected? Don't think trunk has a failure in this test

This is due to OperatorPlan does not define serialVersionUID, default serialVersionUID is susceptible to changes in the class. Here, there's some code change in OperatorPlan on tez, that makes the difference. Once I define OperatorPlan.serialVersionUI, both trunk and tez branch share the same MRC18.gld. I will open a ticket on trunk to add OperatorPlan.serialVersionUID

TEZC-MQ-2.gld - This change can be reverted for now. Output is different with jdk7 and jdk6. That needs to be fixed in plan printing.

Ok, let me revert this change

Opened PIG-3968 for MRC18.gld

+1

Patch committed to tez branch. Thanks Rohini for review!