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https://issues.apache.org/jira/browse/HCATALOG-155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151447#comment-13151447
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Ashutosh Chauhan commented on HCATALOG-155:
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Instead of extending SequenceFileOutputFormat, HBaseBullkOSD now contains an
instance of that. Can you explain why this change is needed and how it fixes
the type problem as reported in the jira?
> HBase bulkOSD requires value to be Put rather than HCatRecord
> -------------------------------------------------------------
>
> Key: HCATALOG-155
> URL: https://issues.apache.org/jira/browse/HCATALOG-155
> Project: HCatalog
> Issue Type: Bug
> Components: hbase
> Affects Versions: 0.3
> Reporter: David Capwell
> Assignee: Francis Liu
> Labels: hbase
> Fix For: 0.3
>
> Attachments: HCATALOG-155.patch
>
>
> So I tried running a MR job writing to hcat+hbase and get the following error:
> [INFO] 02:42:47,857 [pool-1-thread-1] JobClient:1287 - Task Id :
> attempt_201111040030_0023_r_000000_0, Status : FAILED
> java.io.IOException: wrong value class: org.apache.hadoop.hbase.client.Put is
> not class org.apache.hcatalog.data.DefaultHCatRecord
> at
> org.apache.hadoop.io.SequenceFile$Writer.append(SequenceFile.java:988)
> at
> org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat$1.write(SequenceFileOutputFormat.java:74)
> at
> org.apache.hcatalog.mapreduce.DefaultRecordWriterContainer.write(DefaultRecordWriterContainer.java:64)
> at
> org.apache.hcatalog.mapreduce.DefaultRecordWriterContainer.write(DefaultRecordWriterContainer.java:33)
> at
> org.apache.hadoop.mapred.ReduceTask$NewTrackingRecordWriter.write(ReduceTask.java:587)
> at
> org.apache.hadoop.mapreduce.TaskInputOutputContext.write(TaskInputOutputContext.java:80)
> It looks like my key has to be ImmutableBytesWritable.class and my value must
> be Put.class? Shouldn't my key be WritableComparible and value
> DefaultHCatRecord (HCatRecord)?
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