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From "ANURAG SINGH (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (MESOS-4610) MasterContender/MasterDetector should be loadable as modules
Date Mon, 28 Mar 2016 15:23:25 GMT

    [ https://issues.apache.org/jira/browse/MESOS-4610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15197665#comment-15197665
] 

ANURAG SINGH edited comment on MESOS-4610 at 3/28/16 3:22 PM:
--------------------------------------------------------------

We've proceeded further with the review and here's the updated list of changes:

https://reviews.apache.org/r/44287/: Added MasterContender and MasterDetector abstract classes.
https://reviews.apache.org/r/44288/: Changed MasterDetector/Contender namespace.
https://reviews.apache.org/r/44543/: Removed unnecessary MasterContender and MasterDetector
definitions.
https://reviews.apache.org/r/44544/: Moved contender and detector definitions into separate
directories.
https://reviews.apache.org/r/44545/: Instead of keeping standalone and zookeper contender/detector
class
definitions and implementations in the same file, separated them. Also
made the necessary changes in users of class headers to point to the
new locations.
https://reviews.apache.org/r/44546/: Moved functions in promises to a common header file.
https://reviews.apache.org/r/44547/: Added functions in promises to the collect header.
https://reviews.apache.org/r/44289/: Added support for contender and detector modules.
https://reviews.apache.org/r/44669/: Added createFromModule methods to MasterContender and
MasterDetector.
https://reviews.apache.org/r/44670/: Added master_detector and master_contender flags.


was (Author: anurag.prakash.singh):
We've proceeded further with the review and here's the updated list of changes:

https://reviews.apache.org/r/44287/
https://reviews.apache.org/r/44288/
https://reviews.apache.org/r/44543/
https://reviews.apache.org/r/44544/
https://reviews.apache.org/r/44545/
https://reviews.apache.org/r/44546/
https://reviews.apache.org/r/44547/
https://reviews.apache.org/r/44289/
https://reviews.apache.org/r/44669/
https://reviews.apache.org/r/44670/

> MasterContender/MasterDetector should be loadable as modules
> ------------------------------------------------------------
>
>                 Key: MESOS-4610
>                 URL: https://issues.apache.org/jira/browse/MESOS-4610
>             Project: Mesos
>          Issue Type: Improvement
>          Components: master
>            Reporter: Mark Cavage
>            Assignee: Mark Cavage
>              Labels: mesosphere
>
> Currently mesos depends on Zookeeper for leader election and notification to slaves,
although there is a C++ hierarchy in the code to support alternatives (e.g., unit tests use
an in-memory implementation). From an operational perspective, many organizations/users do
not want to take a dependency on Zookeeper, and use an alternative solution to implementing
leader election. Our organization in particular, very much wants this, and as a reference
there have been several requests from the community (see referenced tickets) to replace with
etcd/consul/etc.
> This ticket will serve as the work effort to modularize the MasterContender/MasterDetector
APIs such that integrators can build a pluggable solution of their choice; this ticket will
not fold in any implementations such as etcd et al., but simply move this hierarchy to be
fully pluggable.



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