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https://issues.apache.org/jira/browse/HBASE-7747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587453#comment-13587453
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stack commented on HBASE-7747:
------------------------------
On this:
{code}
+ // TODO: puts are not received in sorted order to necessarily buffers all
+ // data. Can HeapSize be used to constrain this reasonably?
{code}
You could use heapsize, yeah.
So, we'll just add up the Puts w/o regard for order. I think that will be
fine. There is no order expected on how Puts arrive at the server (Result is
otherwise, its List of Cells is required ordered).
+1
> Import tools should use a combiner to merge Puts
> ------------------------------------------------
>
> Key: HBASE-7747
> URL: https://issues.apache.org/jira/browse/HBASE-7747
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce, Performance
> Reporter: Nick Dimiduk
> Priority: Minor
> Attachments:
> 0001-HBASE-7747-Import-use-a-Put-combiner-where-possible.patch
>
>
> Multiple Puts to the same row should be combined into a single mutation
> object. This can be done with a Combiner. Import.Importer#writeResult appears
> to do this manually.
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