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Pig, mail # user - Multiple files with AvroStorage and comma separated lists


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Re: Multiple files with AvroStorage and comma separated lists
Stan Rosenberg 2012-01-25, 19:05
Hi Guys,

Patch finally submitted: https://issues.apache.org/jira/browse/PIG-2492

Best,

stan

P.S. I classified it as an "improvement" rather than a "bug" since I
don't know what the original author(s) intended.

On Tue, Jan 24, 2012 at 9:45 PM, Russell Jurney
<[EMAIL PROTECTED]> wrote:
> Please submit.
>
> Russell Jurney
> twitter.com/rjurney
> [EMAIL PROTECTED]
> datasyndrome.com
>
> On Jan 24, 2012, at 8:22 AM, Stan Rosenberg
> <[EMAIL PROTECTED]> wrote:
>
>> Philipp,
>>
>> I would say that it is a bug.  I ran into the same problem some time
>> ago.  Essentially, AvroStorage does not recognize globs and does not
>> recognize commas, both of which
>> are supported by hadoop's FileInputFormat.  I ended up patching
>> AvroStorage to make it compatible with hadoop's semantics of input
>> paths.  I haven't submitted a patch though.
>> If there is some interest, I'd be more than glad to submit it.
>>
>> Bets,
>>
>> stan
>>
>>
>> On Tue, Jan 24, 2012 at 4:26 AM, Philipp <[EMAIL PROTECTED]> wrote:
>>> Dear Pig users,
>>>
>>> I tried to load several files with AvroStorage by using a comma separated
>>> list. The statement I used is:
>>>
>>> test_data= LOAD 'repo_1/part-r-00000.avro,repo_2/part-r-00000.avro' USING
>>> org.apache.pig.piggybank.storage.avro.AvroStorage();
>>>
>>> Pig states that no input paths were specified in job. Please see the
>>> stacktrace below.
>>> I tried pig version0.8.1-cdh3u2 and 0.9.1.
>>>
>>> Does anyone observe the same behavior? Is it a bug or a feature?
>>>
>>> Thanks, Philipp
>>>
>>>
>>>
>>>
>>>
>>> /Stacktrace:/
>>>
>>> rg.apache.pig.backend.executionengine.ExecException: ERROR 2118: No input
>>> paths specified in job
>>>    at
>>> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:282)
>>>    at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:885)
>>>    at
>>> org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:779)
>>>    at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:730)
>>>    at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378)
>>>    at
>>> org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247)
>>>    at
>>> org.apache.hadoop.mapred.jobcontrol.JobControl.run(JobControl.java:279)
>>>    at java.lang.Thread.run(Thread.java:679)
>>> Caused by: java.io.IOException: No input paths specified in job
>>>    at
>>> org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:186)
>>>    at
>>> org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:241)
>>>    at
>>> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:270)
>>>    ... 7 more
>>>