Versions Compared

Old Version 20

changes.mady.by.user wangwj

Saved on

compared with

New Version 21

changes.mady.by.user wangwj

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

In each ExecutionJobVertex there is a SpeculativeScheduler thread used for detect the long tail execution in this ExecutionJobVertex periodically based on above three rules.

Image Modified

Because of the introduction of speculative execution, the ExecutionVertex can't default to only one execution is running at the same time.

...