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https://issues.apache.org/jira/browse/RATIS-252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16538987#comment-16538987
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Tsz Wo Nicholas Sze edited comment on RATIS-252 at 7/10/18 5:25 PM:
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[~ljain], I like to clarify:
# do you think that the patch is very complicated and it deserves a
complicated test? Or,
# do you think that your suggestion is a very simple test?
I am open for adding more tests. However, I doubt if it is worth the effort,
provided that TestArithmetic already is able to show the correctness of the
patch.
was (Author: szetszwo):
[~ljain], I like to clarify:
# do you think that the patch is very complicated and it deserves a complicated
test? Or,
# do you think that your suggestion is a very simple test?
I am open for adding more tests. However, I doubt if it is worth the effort.
> Add an API for state machine to determining server role
> -------------------------------------------------------
>
> Key: RATIS-252
> URL: https://issues.apache.org/jira/browse/RATIS-252
> Project: Ratis
> Issue Type: New Feature
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Tsz Wo Nicholas Sze
> Priority: Major
> Attachments: r252_20180710.patch
>
>
> In some applications, the state machine may update external database/systems
> while applying a transaction. When there are multiple servers in a raft
> group, all servers will submit the same update to the external systems. It
> unnecessarily overloads the external system. Ideally, only the leader should
> send the update and the followers should not.
> In this JIRA, we provide an API so that the state machine can query its
> server role in order to determine if it should send the update.
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