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ASF GitHub Bot commented on FLINK-7457: --------------------------------------- GitHub user tillrohrmann opened a pull request: https://github.com/apache/flink/pull/4548 [FLINK-7457] Make Dispatcher highly available ## What is the purpose of the change This commit introduces a dispatcher leader election and retrieval service to the HighAvailabilityServices. Moreover it adds code such that the Dispatcher now takes part in the leader election process using the afore-mentioned services. Let Dispatcher participate in leader election Add test for Dispatcher leader election ## Brief change log - Introduce `LeaderElectionService` and `LeaderElectionRetrievalService` for the `Dispatcher` to the `HighAvailabililtyServices` - Let the `Dispatcher participate in the leader election process - Guard `Dispatcher#submitJob` with leader session id ## Verifying this change This change added tests and can be verified as follows: - Added `DispatcherTest#testLeaderElection` which simulates a leader election process ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable) You can merge this pull request into a Git repository by running: $ git pull https://github.com/tillrohrmann/flink addDispatcherHA Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/4548.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #4548 ---- commit 9be93a9814ac0727015710f6764ce5e6a4166ea7 Author: Till Rohrmann <trohrm...@apache.org> Date: 2017-08-16T12:36:13Z [FLINK-7457] Make Dispatcher highly available This commit introduces a dispatcher leader election and retrieval service to the HighAvailabilityServices. Moreover it adds code such that the Dispatcher now takes part in the leader election process using the afore-mentioned services. Let Dispatcher participate in leader election Add test for Dispatcher leader election ---- > Make dispatcher highly available > -------------------------------- > > Key: FLINK-7457 > URL: https://issues.apache.org/jira/browse/FLINK-7457 > Project: Flink > Issue Type: Improvement > Components: Distributed Coordination > Affects Versions: 1.4.0 > Reporter: Till Rohrmann > Assignee: Till Rohrmann > Labels: flip-6 > > The dispatcher component should be made highly available similar to the > {{ResourceManager}} and the {{JobMasters}}. -- This message was sent by Atlassian JIRA (v6.4.14#64029)