sv2000 commented on a change in pull request #2907: [GOBBLIN-1068]Clean up
cyclic logic in task cancellation
URL: https://github.com/apache/incubator-gobblin/pull/2907#discussion_r404219750
##########
File path:
gobblin-runtime/src/main/java/org/apache/gobblin/runtime/GobblinMultiTaskAttempt.java
##########
@@ -152,13 +155,15 @@ public void run()
}
CountUpAndDownLatch countDownLatch = new CountUpAndDownLatch(0);
- this.tasks = runWorkUnits(countDownLatch);
+ Pair<List<Task>, List<Future<?>>> taskExecutionResult =
runWorkUnits(countDownLatch);
+ this.tasks = taskExecutionResult.getLeft();
+ this.taskFutures = taskExecutionResult.getRight();
log.info("Waiting for submitted tasks of job {} to complete in container
{}...", jobId, containerIdOptional.or(""));
try {
while (countDownLatch.getCount() > 0) {
if (this.interruptionPredicate.test(this)) {
log.info("Interrupting task execution due to satisfied predicate.");
- interruptTaskExecution(countDownLatch);
+ interruptTaskExecution(Optional.of(countDownLatch));
Review comment:
Optional is not intended to be used as a function parameter and should be
used only as a return value.
[Here](https://www.quora.com/Why-is-using-java-util-Optional-as-a-method-parameter-not-recommended)
is one of several references describing the problems with using Optional as a
function parameter.
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