[MAPREDUCE-4278] cannot run two local jobs in parallel from the same gateway.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.205.0
• Fix Version/s: 1.2.0, 2.0.3-alpha, 0.23.7
• Hadoop Flags: Reviewed
• Assignee: Sandy Ryza
• Reporter: Araceli Henley
• Created: 22/May/12 19:52
• Updated: 23/Jul/13 23:11
• Resolved: 08/Jan/13 16:38

Description

I cannot run two local mode jobs from Pig in parallel from the same gateway, this is a typical use case. If I re-run the tests sequentially, then the test pass. This seems to be a problem from Hadoop.

Additionally, the pig harness, expects to be able to run Pig-version-undertest against Pig-version-stable from the same gateway.

To replicate the error:

I have two clusters running from the same gateway.
If I run the Pig regression suites nightly.conf in local mode in paralell - once on each cluster. Conflicts in M/R local mode result in failures in the tests.

ERROR1:

org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find
output/file.out in any of the configured local directories
at
org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathToRead(LocalDirAllocator.java:429)
at
org.apache.hadoop.fs.LocalDirAllocator.getLocalPathToRead(LocalDirAllocator.java:160)
at
org.apache.hadoop.mapred.MapOutputFile.getOutputFile(MapOutputFile.java:56)
at org.apache.hadoop.mapred.Task.calculateOutputSize(Task.java:944)
at org.apache.hadoop.mapred.Task.sendLastUpdate(Task.java:924)
at org.apache.hadoop.mapred.Task.done(Task.java:875)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:374)
—

ERROR2:

2012-05-17 20:25:36,762 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
-
HadoopJobId: job_local_0001
2012-05-17 20:25:36,778 [Thread-3] INFO org.apache.hadoop.mapred.Task -
Using ResourceCalculatorPlugin : org.apache.
hadoop.util.LinuxResourceCalculatorPlugin@ffa490e
2012-05-17 20:25:36,837 [Thread-3] WARN
org.apache.hadoop.mapred.LocalJobRunner - job_local_0001
java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
at java.util.ArrayList.RangeCheck(ArrayList.java:547)
at java.util.ArrayList.get(ArrayList.java:322)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getLoadFunc(PigInputFormat.java
:153)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.createRecordReader(PigInputForm
at.java:106)
at
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:489)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
2012-05-17 20:25:41,291 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher

Issue Links

• breaks: SQOOP-821 Hadoop has changed logic for job id in LocalJobRunner that breaks Lob* tests
• is related to: MAPREDUCE-5367 Local jobs all use same local working directory