Incorrect results when there is a dump in between statements.
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Key: PIG-153
URL: https://issues.apache.org/jira/browse/PIG-153
Project: Pig
Issue Type: Bug
Environment: Pig + Hadoop
Reporter: Amir Youssefi
Following scenario is with Pig + Hadoop.
A similar run with Local Pig showed correct results.
Here is test file data/test/test2.txt:
a1 1 5700
b1 2 2001
c2 2
I run the following script step by step:
grunt> a = load 'data/test/test2.txt';
grunt> dump a;
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - ----- MapReduce Job
--- --
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Input:
[/user/amiry/dat a/test/test2.txt:org.apache.pig.builtin.PigStorage()]
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Map: [[*]]
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Group: null
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Combine: null
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Reduce: null
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Output:
/tmp/temp135967 7959/tmp-246846292:org.apache.pig.builtin.BinStorage
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Split: null
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Map parallelism: -1
2008-03-18 06:41:55,163 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Reduce parallelism:
-1
2008-03-18 06:41:57,472 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 0%
2008-03-18 06:41:58,477 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 50%
2008-03-18 06:42:04,495 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 100%
(a1, 1, 5700)
(b1, 2, 2001)
(c2, 2, )
grunt> b = filter a by $0 eq 'a1';
grunt> dump b;
2008-03-18 06:42:23,881 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - ----- MapReduce Job
--- --
2008-03-18 06:42:23,881 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Input:
[/tmp/temp135967 7959/tmp-246846292:org.apache.pig.builtin.BinStorage]
2008-03-18 06:42:23,881 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Map: [[*]->[FILTER
BY ( [PROJECT $0] eq ['a1'])]]
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Group: null
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Combine: null
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Reduce: null
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Output:
/tmp/temp135967 7959/tmp1851797397:org.apache.pig.builtin.BinStorage
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Split: null
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Map parallelism: -1
2008-03-18 06:42:23,882 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Reduce parallelism:
-1
2008-03-18 06:42:25,938 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 0%
2008-03-18 06:42:28,946 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 50%
2008-03-18 06:42:34,963 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 100%
(a1, 1, 5700)
grunt> c = filter a by $0 eq 'b1';
grunt> dump c;
2008-03-18 06:42:59,884 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - ----- MapReduce Job
--- --
2008-03-18 06:42:59,884 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Input:
[/tmp/temp135967 7959/tmp1851797397:org.apache.pig.builtin.BinStorage]
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Map: [[*]->[FILTER
BY ( [PROJECT $0] eq ['b1'])]]
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Group: null
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Combine: null
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Reduce: null
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Output:
/tmp/temp135967 7959/tmp-1157182212:org.apache.pig.builtin.BinStorage
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Split: null
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Map parallelism: -1
2008-03-18 06:42:59,885 [main] INFO
org.apache.pig.backend.hadoop.executionengine.POMapreduce - Reduce parallelism:
-1
2008-03-18 06:43:01,964 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 0%
2008-03-18 06:43:04,974 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 50%
2008-03-18 06:43:06,980 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher -
Pig progress = 100%
grunt>
Meaning c is empty.
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