Hi, it means that you can now modify the parallelism of a running job with a new „modify“ command in the CLI, see [1]. Adding task manager will add their offered slots to the pool of available slots, it will not automatically change the parallelism.
Best, Stefan [1] https://ci.apache.org/projects/flink/flink-docs-master/ops/cli.html <https://ci.apache.org/projects/flink/flink-docs-master/ops/cli.html> > Am 12.06.2018 um 11:50 schrieb Sampath Bhat <sam414255p...@gmail.com>: > > Hello > In flink 1.5 release notes - > https://flink.apache.org/news/2018/05/25/release-1.5.0.html#release-notes > > Various Other Features and Improvements: > Applications can be rescaled without manually triggering a savepoint. Under > the hood, Flink will still take a savepoint, stop the application, and > rescale it to the new parallelism. > > What exactly does this statement mean? > How to rescale the application ? > If i'm running my flink job application with parallelism of 5 and then I > execute the following command > flink run <jar_path> -p 10 then will the application rescale to 10 > parallelism? > > Adding on what will be the behavior in flink 1.5 if I increase the number > of task manager in a flink cluster? > > So if i have a flink job running on flink cluster having 1 task manager and > i increase the number of task manager to 2 will the flink rescale the flink > job also or will the flink job be unaffected?
