[TEZ-2366] Pig tez MiniTezCluster unit tests fail intermittently after TEZ-2333

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.7.0
• Target Version/s: 0.7.0
• Assignee: Prakash Ramachandran
• Reporter: Daniel Dai
• Created: 24/Apr/15 18:49
• Updated: 30/Jun/15 04:53
• Resolved: 06/May/15 23:20

Description

There are around 20 unit tests (out of around 2000) fail intermittently after TEZ-2333. Here is a stack:

org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find output/attempt_1429899954360_0001_1_01_000000_1_10003/file.out.index in any of the configured local directories
        at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathToRead(LocalDirAllocator.java:449)
        at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathToRead(LocalDirAllocator.java:164)
        at org.apache.tez.runtime.library.common.shuffle.Fetcher.getShuffleInputFileName(Fetcher.java:611)
        at org.apache.tez.runtime.library.common.shuffle.Fetcher.getTezIndexRecord(Fetcher.java:591)
        at org.apache.tez.runtime.library.common.shuffle.Fetcher.doLocalDiskFetch(Fetcher.java:536)
        at org.apache.tez.runtime.library.common.shuffle.Fetcher.setupLocalDiskFetch(Fetcher.java:517)
        at org.apache.tez.runtime.library.common.shuffle.Fetcher.callInternal(Fetcher.java:190)
        at org.apache.tez.runtime.library.common.shuffle.Fetcher.callInternal(Fetcher.java:72)
        at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

To reproduce that in Pig test, using the following commands:
svn co http://svn.apache.org/repos/asf/pig/trunk
ant -Dhadoopversion=23 -Dtest.exec.type=tez -Dtestcase=TestTezAutoParallelism test

Note in Pig codebase, we already set TEZ_RUNTIME_OPTIMIZE_LOCAL_FETCH to "true" (http://svn.apache.org/viewvc/pig/trunk/src/org/apache/pig/backend/hadoop/executionengine/tez/TezLauncher.java?view=markup). I tried changing TEZ_RUNTIME_OPTIMIZE_LOCAL_FETCH to "false" in Pig and does not help.