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From "Phil Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16505) Add AsyncRegion interface to pass deadline and support async operations
Date Wed, 14 Sep 2016 08:32:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15489807#comment-15489807
] 

Phil Yang commented on HBASE-16505:
-----------------------------------

Changing api of Region results in too many following changes just adding a new param and use
CompletableFuture to get the return value. So my plan is use a RegionBase interface to cover
all methods which will not have new version in current Region, eg. getRegionInfo(), and use
two interface extend it: an interface which is same as now and a new one returning CompletableFuture,
although it is still blocking at first. The first interface may be called BlockingRegion and
marked as @Deprecated, and the second one call Region and expected to be used by default.
In future we will change the implementation into fully non-blocking which we can discuss in
HBASE-16583 (maybe not SEDA, but we indeed need async)

[~enis] [~Apache9] What do you think? Thanks.

> Add AsyncRegion interface to pass deadline and support async operations
> -----------------------------------------------------------------------
>
>                 Key: HBASE-16505
>                 URL: https://issues.apache.org/jira/browse/HBASE-16505
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>             Fix For: 2.0.0
>
>         Attachments: HBASE-16505-branch-1-v1.patch, HBASE-16505-v1.patch, HBASE-16505-v10.patch,
HBASE-16505-v10.patch, HBASE-16505-v2.patch, HBASE-16505-v3.patch, HBASE-16505-v4.patch, HBASE-16505-v5.patch,
HBASE-16505-v6.patch, HBASE-16505-v7.patch, HBASE-16505-v8.patch, HBASE-16505-v9.patch
>
>
> If we want to know the correct setting of timeout in read/write path, we need add a new
parameter in operation-methods of Region.



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