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https://issues.apache.org/jira/browse/CRUNCH-212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13678717#comment-13678717
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Gabriel Reid commented on CRUNCH-212:
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Yeah, writing directly to HFiles is *way* faster than HTableOutputFormat.
Having this in Crunch would be really great. I looked at it quickly in the
past, and at the time it would have been non-trivial due to the way output file
handling is done in Crunch, but I think that situation may have changed a bit
recently, which could make it easier to integrate with Crunch.
It is indeed possible to call HBase to load the data in automatically.
Coincidentally (or maybe not) I did just this a while back at work -- it's also
Apache-licensed, and the relevant code is here:
https://github.com/NGDATA/lilyproject/blob/master/cr/bulk-import/src/main/java/org/lilyproject/repository/bulk/mapreduce/BulkImportTool.java#L103-L111
> Need target wrapper for HFileOuptutFormat
> -----------------------------------------
>
> Key: CRUNCH-212
> URL: https://issues.apache.org/jira/browse/CRUNCH-212
> Project: Crunch
> Issue Type: Improvement
> Components: IO
> Reporter: Chao Shi
>
> I need to import data to hbase from MR. I found HFileOutputFormat is ~5x more
> efficient than HTableOutputFormat. So maybe we need a target wrapper for it.
> Future more, is it possible to call HBase to load it automatically after
> HFiles are generated?
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