Github user WangTaoTheTonic commented on a diff in the pull request:
https://github.com/apache/flink/pull/3408#discussion_r104855322
--- Diff:
flink-yarn/src/main/java/org/apache/flink/yarn/cli/FlinkYarnSessionCli.java ---
@@ -317,6 +319,10 @@ public AbstractYarnClusterDescriptor
createDescriptor(String defaultApplicationN
if (cmd.hasOption(SLOTS.getOpt())) {
int slots =
Integer.valueOf(cmd.getOptionValue(SLOTS.getOpt()));
yarnClusterDescriptor.setTaskManagerSlots(slots);
+ } else if (config.containsKey(ConfigConstants.YARN_VCORES)) {
--- End diff --
And in document, there still has introduction of YARN_VCORES.
```
yarn.containers.vcores The number of virtual cores (vcores) per YARN
container. By default, the
number of vcores is set to the number of slots per TaskManager, if set, or
to 1, otherwise.
```
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