Xintong Song created FLINK-16734:
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Summary: Remove ClusterSpecification
Key: FLINK-16734
URL: https://issues.apache.org/jira/browse/FLINK-16734
Project: Flink
Issue Type: Improvement
Components: Command Line Client
Reporter: Xintong Song
Currently, {{ClusterSpecification}} has the following three fields.
* masterMemoryMB
* taskManagerMemoryMB
* slotsPerTaskManager
Among the three fields, {{taskManagerMemoryMB}} is only used in
{{YarnClusterDescriptor#validateClusterResources}}. It can be replaced by
"taskmanager.memory.process.size" in the configuration. Moreover, there are
consistency risks for keeping the process memory in two places with different
precision (MB vs. MemorySize).
{{masterMemoryMB}} should be the same as {{taskManagerMemoryMB}} after
finishing [FLIP-116 Unified Memory Configuration for Job
Managers|https://cwiki.apache.org/confluence/display/FLINK/FLIP+116%3A+Unified+Memory+Configuration+for+Job+Managers].
That leaves only {{slotsPerTaskManager}}, which can easily get from the
configuration.
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