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From "Xu Zhang (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (PIG-174) Pig hangs at progress 0% in this case
Date Wed, 02 Apr 2008 21:33:28 GMT

     [ https://issues.apache.org/jira/browse/PIG-174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xu Zhang reopened PIG-174:
--------------------------


It still hangs if a non-existing location for perl is specified in the perl script.  For example,
at the very beginning of the script if you have something like this:

#!/nonexistingpath/bin/perl

However, this should be a negative test case so I will lower the priority of the bug.  On
a related note, if an existing is specified, the test case passes successfully. 

Also, I might have brought down the cluster.  Can someone restart it again?

> Pig hangs at progress 0% in this case
> -------------------------------------
>
>                 Key: PIG-174
>                 URL: https://issues.apache.org/jira/browse/PIG-174
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Xu Zhang
>            Assignee: Arun C Murthy
>
> Pig appears to hang at progress 0% with the following console output:
> {noformat}
> 2008-03-28 13:58:50,398 [main] INFO  org.apache.pig.backend.hadoop.executionengine.HExecutionEngine
- Connecting to hadoop file system at: wilbur11.labs.corp.sp1.yahoo.com:8020
> 2008-03-28 13:58:51,342 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- ----- MapReduce Job -----
> 2008-03-28 13:58:51,343 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Input: [/user/pig/tests/data/singlefile/studenttab10k:org.apache.pig.builtin.PigStorage()]
> 2008-03-28 13:58:51,343 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Map: [[*]->org.apache.pig.impl.eval.StreamSpec@16fa474]
> 2008-03-28 13:58:51,343 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Group: null
> 2008-03-28 13:58:51,343 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Combine: null
> 2008-03-28 13:58:51,344 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Reduce: null
> 2008-03-28 13:58:51,344 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Output: results_7:org.apache.pig.builtin.PigStorage
> 2008-03-28 13:58:51,344 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Split: null
> 2008-03-28 13:58:51,344 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Map parallelism: -1
> 2008-03-28 13:58:51,344 [main] INFO  org.apache.pig.backend.hadoop.executionengine.POMapreduce
- Reduce parallelism: -1
> 2008-03-28 13:58:54,245 [main] INFO  org.apache.pig.backend.hadoop.executionengine.mapreduceExec.MapReduceLauncher
- Pig progress = 0%
> {noformat}
> The contents of the pig script used is as follows:
> {code}
> define X `./streamingscript/MySimpleStreamApp.pl` ship('./streamingscript/MySimpleStreamApp.pl');
> A = load '/user/pig/tests/data/singlefile/studenttab10k';
> B = stream A through X;
> store B into 'results_7';
> {code}
> The streaming script "MySimpleStreamApp.pl" is as follows and it is located under the
streamingscript directory in my home directory.  I issued the pig command from my home directory.
> {code}
> #!/home/y/bin/perl
> while (<>) {
>     chomp;
>     print "$_\n";
> }
> {code}

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