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https://issues.apache.org/jira/browse/CRUNCH-481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306041#comment-14306041
]
Ryan Brush commented on CRUNCH-481:
-----------------------------------
This may be more appropriate for the related CDK-756 bug, but has anyone gotten
this to work with a Hadoop 2 or CDH setup? I get the stack trace below when
doing so.
Interestingly, when debugging against a Hadoop 1 build I don't see the
CompositeOutputCommitter.setupJob being called at all, which avoids the
creation of the redundant dataset.
(This can be reproduced by running the crunch_write_multiple_datasets.patch on
CDK-756 against this code with a Hadoop 2 profile.)
15/02/04 15:30:21 INFO jobcontrol.CrunchControlledJob: Job status available at:
http://localhost:8080/
15/02/04 15:30:21 INFO mapred.LocalJobRunner: OutputCommitter is
org.apache.crunch.io.CrunchOutputs$CompositeOutputCommitter
15/02/04 15:30:21 WARN mapred.LocalJobRunner: job_local1926953006_0002
org.kitesdk.data.DatasetExistsException: Descriptor directory already exists:
file:/var/folders/wy/tcxd96vx4vb_8m98zsjrn1vnlv9lnn/T/1423085421414-0/ns/.temp/job_local1926953006_0002/mr/job_local1926953006_0002/.metadata
at
org.kitesdk.data.spi.filesystem.FileSystemMetadataProvider.create(FileSystemMetadataProvider.java:192)
at
org.kitesdk.data.spi.filesystem.FileSystemDatasetRepository.create(FileSystemDatasetRepository.java:136)
at
org.kitesdk.data.mapreduce.DatasetKeyOutputFormat.createJobDataset(DatasetKeyOutputFormat.java:537)
at
org.kitesdk.data.mapreduce.DatasetKeyOutputFormat.access$200(DatasetKeyOutputFormat.java:64)
at
org.kitesdk.data.mapreduce.DatasetKeyOutputFormat$MergeOutputCommitter.setupJob(DatasetKeyOutputFormat.java:358)
at
org.apache.crunch.io.CrunchOutputs$CompositeOutputCommitter.setupJob(CrunchOutputs.java:302)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:371)
> Support independent output committers for multiple outputs
> ----------------------------------------------------------
>
> Key: CRUNCH-481
> URL: https://issues.apache.org/jira/browse/CRUNCH-481
> Project: Crunch
> Issue Type: Bug
> Components: Core
> Reporter: Aniket Kulkarni
> Assignee: Josh Wills
> Priority: Minor
> Fix For: 0.12.0
>
> Attachments: CRUNCH-481.patch, CRUNCH-481.patch, CRUNCH-481.patch,
> CRUNCH-481c.patch
>
>
> I faced this issue while trying to write to Kite and HDFS in the same
> pipeline. A similar issue was logged for Kite[1][2].
> I was attempting to write a PCollection to Kite and a different PTable to
> HDFS as a text file. The write to Kite succeeded, however the write to HDFS
> only produced a _SUCCESS file with no text file.
> Commenting out the write to Kite seems to solve the issue and I can see the
> text file being written.
> [1] - https://issues.cloudera.org/browse/CDK-756
> [2] -
> http://mail-archives.apache.org/mod_mbox/crunch-dev/201401.mbox/%3ccaf-wd4qcue0toh3qewpdnnom3u786pvjlgh7t6go_abctpl...@mail.gmail.com%3E
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