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https://issues.apache.org/jira/browse/HBASE-16968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15624478#comment-15624478
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ramkrishna.s.vasudevan commented on HBASE-16968:
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Belated +1.
> Refactor FanOutOneBlockAsyncDFSOutput
> -------------------------------------
>
> Key: HBASE-16968
> URL: https://issues.apache.org/jira/browse/HBASE-16968
> Project: HBase
> Issue Type: Sub-task
> Components: io, wal
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0
>
> Attachments: HBASE-16968-v1.patch, HBASE-16968.patch
>
>
> As we have moved to jdk8, and dropped the support of hadoop-2.4.x and
> hadoop-2.5.x on master, we could use CompletableFuture instead of
> CompletionHandler to make the code more clear, and also remove the support of
> hadoop-2.4.x and hadoop-2.5.x to remove lots of the reflection code.
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