vinoyang created FLINK-12362:
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Summary: Add container number config option for Flink on yarn job
cluster mode
Key: FLINK-12362
URL: https://issues.apache.org/jira/browse/FLINK-12362
Project: Flink
Issue Type: Bug
Components: Deployment / YARN
Reporter: vinoyang
Assignee: vinoyang
Recently, the {{-n}} config option has been removed from the document, the
commit is here:
[https://github.com/apache/flink/commit/60507b8baf5fba999b7c2c45c150914f38f5ce38#diff-8ae07fac4c1f4137fc1ef062aef70115L100]
I can understand that maybe this option is useless for Flink session. But for
job cluster mode, remove this option would confuse the users:
* the {{-n}} has been deprecated and replaced with {{-p}}?
* {{-p}} means the job level parallelism, but if users want to set a single
operator's parallelism? how to calculate the number of containers
* the {{-n}} option still exists in {{FlinkYarnSessionCli}}
* we have customized the source code which broken the rule: one container one
slot, so the {{-n}} is still useful
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