xleoken commented on code in PR #2119:
URL:
https://github.com/apache/incubator-celeborn/pull/2119#discussion_r1458506800
##########
master/src/main/scala/org/apache/celeborn/service/deploy/master/Master.scala:
##########
@@ -678,16 +679,9 @@ private[celeborn] class Master(
if (requestSlots.maxWorkers <= 0) slotsAssignMaxWorkers
else Math.min(slotsAssignMaxWorkers, requestSlots.maxWorkers)),
numAvailableWorkers)
- val startIndex = Random.nextInt(numAvailableWorkers)
- val selectedWorkers = new util.ArrayList[WorkerInfo](numWorkers)
- selectedWorkers.addAll(availableWorkers.subList(
- startIndex,
- Math.min(numAvailableWorkers, startIndex + numWorkers)))
- if (startIndex + numWorkers > numAvailableWorkers) {
- selectedWorkers.addAll(availableWorkers.subList(
- 0,
- startIndex + numWorkers - numAvailableWorkers))
- }
+ Collections.rotate(availableWorkers, Random.nextInt(numAvailableWorkers))
Review Comment:
@onebox-li, make sense. In most case, availableWorkers is enough.
```
// select workers from availableWorkers randomly
Collections.rotate(availableWorkers, Random.nextInt(numAvailableWorkers))
val selectedWorkers =
if (numWorkers == numAvailableWorkers) availableWorkers
else availableWorkers.subList(0, numWorkers)
```
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
