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https://issues.apache.org/jira/browse/PIG-3813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suhas Satish updated PIG-3813:
------------------------------
Description:
When the following script is run, pig goes into an infinite loop. This was
reproduced on pig trunk as of March 12, 2014 on apache hadoop 1.2.
test_data.txt has been attached.
test.pig
tWeek = LOAD '/tmp/test_data.txt' USING PigStorage ('|') AS (WEEK:int,
DESCRIPTION:chararray, END_DATE:chararray, PERIOD:int);
gTWeek = FOREACH tWeek GENERATE WEEK AS WEEK, PERIOD AS PERIOD;
pWeek = FILTER gTWeek BY PERIOD == 201312;
pWeekRanked = RANK pWeek BY WEEK ASC DENSE;
gpWeekRanked = FOREACH pWeekRanked GENERATE $0;
store gpWeekRanked into 'gpWeekRanked';
describe gpWeekRanked;
---------------------------------------------------
The res object of class Result, gets its value from leaf.getNextTuple()
This gets an empty tuple
()
with STATUS_OK.
SO the while(true) condition never gets an End of Processing (EOP) and so does
not exit.
was:
When the following script is run, pig goes into an infinite loop. This was
reproduced on pig trunk as of March 12, 2014 on apache hadoop 1.2.
test_data.txt has been attached.
test.pig
tWeek = LOAD '/tmp/test_data.txt' USING PigStorage ('|') AS (WEEK:int,
DESCRIPTION:chararray, END_DATE:chararray, PERIOD:int);
gTWeek = FOREACH tWeek GENERATE WEEK AS WEEK, PERIOD AS PERIOD;
pWeek = FILTER gTWeek BY PERIOD == 201312;
pWeekRanked = RANK pWeek BY WEEK ASC DENSE;
gpWeekRanked = FOREACH pWeekRanked GENERATE $0;
store gpWeekRanked into 'gpWeekRanked';
describe gpWeekRanked;
---------------------------------------------------
> runPipeline() method returns empty tuples and goes into infinite loop under
> certain conditions
> -----------------------------------------------------------------------------------------------
>
> Key: PIG-3813
> URL: https://issues.apache.org/jira/browse/PIG-3813
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.12.0
> Reporter: Suhas Satish
> Priority: Critical
> Attachments: test_data.txt
>
>
> When the following script is run, pig goes into an infinite loop. This was
> reproduced on pig trunk as of March 12, 2014 on apache hadoop 1.2.
> test_data.txt has been attached.
> test.pig
> tWeek = LOAD '/tmp/test_data.txt' USING PigStorage ('|') AS (WEEK:int,
> DESCRIPTION:chararray, END_DATE:chararray, PERIOD:int);
> gTWeek = FOREACH tWeek GENERATE WEEK AS WEEK, PERIOD AS PERIOD;
> pWeek = FILTER gTWeek BY PERIOD == 201312;
> pWeekRanked = RANK pWeek BY WEEK ASC DENSE;
> gpWeekRanked = FOREACH pWeekRanked GENERATE $0;
> store gpWeekRanked into 'gpWeekRanked';
> describe gpWeekRanked;
> ---------------------------------------------------
> The res object of class Result, gets its value from leaf.getNextTuple()
> This gets an empty tuple
> ()
> with STATUS_OK.
> SO the while(true) condition never gets an End of Processing (EOP) and so
> does not exit.
>
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