Github user yanghua commented on a diff in the pull request: https://github.com/apache/flink/pull/6297#discussion_r202071052 --- Diff: flink-yarn/src/main/java/org/apache/flink/yarn/cli/FlinkYarnSessionCli.java --- @@ -386,10 +386,10 @@ private ClusterSpecification createClusterSpecification(Configuration configurat } // JobManager Memory - final int jobManagerMemoryMB = MemorySize.parse(configuration.getString(JobManagerOptions.JOB_MANAGER_HEAP_MEMORY)).getMebiBytes(); + final int jobManagerMemoryMB = MemorySize.parse(configuration.getString(JobManagerOptions.JOB_MANAGER_HEAP_MEMORY), MemorySize.MemoryUnit.MEGA_BYTES).getMebiBytes(); --- End diff -- to @GJL we can not use `.withDeprecatedKeys("jobmanager.heap.mb")` because `jobmanager.heap.size` and `jobmanager.heap.mb` has different meaning. The former can use different unit such **1g** but the latter can just measure with **MB**. to @dawidwys and @GJL , now the `jobmanager.heap.mb` just used in config file, and can be calculated accurately, this is used for backwards compatibility, but in the project, it is useless, all the place can be replaced with `jobmanager.heap.size`, and the key in the code could not been exposed to the user?
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