Github user jerryshao commented on the pull request:
https://github.com/apache/spark/pull/4841#issuecomment-77085933
Hi @srowen , maybe the name is not good. The reason why I add a third value
is that:
1. The difference compared to `coresGranted` is that `coresGranted` will be
changed according to the executor's adding and removing, and it will be zero
when app is finished, so we cannot use this value to reflect the actual cores
requested when app is finished.
2. Also as I said previously `requestedCores` is the number of cores user
configured, different from the actual cores requested from application master.
Probably here `actualCoresRequested` is more likely to be `maxCoresGranted`.
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