flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From StephanEwen <...@git.apache.org>
Subject [GitHub] flink issue #3599: [FLINK-6174][HA]introduce a new election service to make ...
Date Fri, 24 Mar 2017 15:16:53 GMT
Github user StephanEwen commented on the issue:

    I would suggest to fix this the following way:
      - There is an upcoming patch that makes the Flink codebase use the `HighAvailabilityServices`
properly in all places.
      - We introduce a new HA mode called `yarnsimple` or so (next to `none` and `zookeeper`)
and instantiate a new implementation of `HighAvailabilityServices` which is ZooKeeper independent.
      - The new implementation of the High Availability Services does not use ZooKeeper. It
uses a leader service that always grants the JobManager leadership, but also implements a
way for TaskManagers to find the JobManager (to be seen how, possibly a file in HDFS or so).
It also implements a ZooKeeper independent CompletedCheckpointStore that finds checkpoints
by maintaining a file with completed checkpoints.
    That is all not a "proper" HA setup - it only works as long as there is strictly only
one master
    But it comes close and is ZooKeeper independent.
    Is that what you are looking for?

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.

View raw message