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From David McLaughlin <dmclaugh...@apache.org>
Subject Re: [Design Doc] Hot Standby in Replicas to Reduce Failover Time
Date Tue, 05 Sep 2017 22:07:21 GMT
+1, this proposal looks sound to me. I'll leave any minor feedback on the
doc but none of it will be blocking.

On Mon, Sep 4, 2017 at 10:31 AM, Erb, Stephan <Stephan.Erb@blue-yonder.com>
wrote:

> Thanks for the detailed design document and the in-depth walkthrough [1]!
> Your proposal seems to be sound. (But be warned, I don’t have much
> experience in this part of Aurora or Mesos :-))
>
> [1] https://docs.google.com/presentation/d/1fQMfNLaRex9rJyq3h08HIujtpULoY
> npFFV7-P6p6Zt0/edit#slide=id.p4
>
> On 31.08.17, 04:18, "Jordan Ly" <jordan.ly8@gmail.com> wrote:
>
>     Hi everyone,
>
>     Following up on the discussion here:
>     https://lists.apache.org/thread.html/e31d7dbcb054ed570f969ae2043ead
> fc090383edfe0751cec59b29d3@%3Cdev.aurora.apache.org%3E
>
>     I've created a design document detailing the implementation of a "hot
>     standby" mechanism where scheduler followers would eagerly read and
>     apply entries from the replicated log. The goal of this change is
>     that, in the event of a failover, the newly elected follower will not
>     have to replay as many entries to rebuild its state and thus can start
>     serving traffic faster.
>
>     https://docs.google.com/document/d/1DOtKA4-
> vrtxat1MaUYMQ6Y1iXhA8ob6Mfztzt-R1Oss/edit?usp=sharing
>
>     I have a working prototype of the above design running on a test
>     cluster. Please feel free to comment on the doc!
>
>     This document references a current proposal in Mesos by Ilya Pronin
>     here: https://lists.apache.org/thread.html/
> 1b8fd10e151054a85c9ea3dc808f7fecb9a87fe5f5e87b10caa46e2a@%
> 3Cdev.mesos.apache.org%3E
>
>     Cheers,
>
>     Jordan Ly
>
>
>

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