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https://issues.apache.org/jira/browse/HBASE-4677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140725#comment-13140725
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Ming Ma commented on HBASE-4677:
--------------------------------

What is the general recommendation to application developer w.r.t HBase major 
upgrade?  We have some application built on 0.90.4 that uses 
LoadIncrementalHFiles on the application machines. In that scenario, the 
application jar that use HBase 0.90.4 jar won't work with 0.92.0 HBase cluster.

In the long term do we want to get to a point where we have HBase_client.jar 
and HBase_server.jar? In that scenario, application can continue to use an old 
version of HBase_client.jar to talk to newer version of HBase_server.jar. The 
old IPC methods will need to be maintained for that scenario. Or perhaps such 
kind of compatibility support should be done on a higher leverl like Thift?

Perhaps it isn't a major issue until we have lots of HBase applications running 
and HBase is used as a service.




                
> Remove old single bulkLoadHFile method
> --------------------------------------
>
>                 Key: HBASE-4677
>                 URL: https://issues.apache.org/jira/browse/HBASE-4677
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>             Fix For: 0.92.0
>
>         Attachments: hbase-4677.patch
>
>
> In review for HBASE-4649, there is some debate as whether to remove, 
> deprecate, or leave the HRegionServer.bulkLoadHFile method. 
> https://reviews.apache.org/r/2545/ .   This jira will take care of that for 
> the 0.92 and trunk releases, and allow the same patch to remain for an 
> optional 0.90.x patch.

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