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https://issues.apache.org/jira/browse/HDFS-12735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244243#comment-16244243
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Lokesh Jain commented on HDFS-12735:
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[~jnp] [~anu] The ratis StateMachine#applyTransaction does not guarantee that
the calls will be ordered according to the log commit order and this function
is the one which is implemented in this patch(Source: StateMachine.java file in
ratis). I had discussed it with [~msingh] and we still have to think upon this
issue.
> Make ContainerStateMachine#applyTransaction async
> -------------------------------------------------
>
> Key: HDFS-12735
> URL: https://issues.apache.org/jira/browse/HDFS-12735
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Labels: performance
> Attachments: HDFS-12735-HDFS-7240.000.patch,
> HDFS-12735-HDFS-7240.001.patch
>
>
> Currently ContainerStateMachine#applyTransaction makes a synchronous call to
> dispatch client requests. Idea is to have a thread pool which dispatches
> client requests and returns a CompletableFuture.
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