kowshik commented on a change in pull request #11351:
URL: https://github.com/apache/kafka/pull/11351#discussion_r714401442
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File path: core/src/main/scala/kafka/utils/KafkaScheduler.scala
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@@ -103,11 +103,14 @@ class KafkaScheduler(val threads: Int,
schedule(name, fun, delay = 0L, period = -1L, unit = TimeUnit.MILLISECONDS)
}
- def schedule(name: String, fun: () => Unit, delay: Long, period: Long, unit:
TimeUnit): ScheduledFuture[_] = {
+ def schedule(name: String, fun: () => Unit, delay: Long, period: Long, unit:
TimeUnit): Option[ScheduledFuture[_]] = {
debug("Scheduling task %s with initial delay %d ms and period %d ms."
.format(name, TimeUnit.MILLISECONDS.convert(delay, unit),
TimeUnit.MILLISECONDS.convert(period, unit)))
this synchronized {
- ensureRunning()
+ if (!isStarted) {
+ info("Kafka scheduler is not running at the time task '%s' is
scheduled. The task is ignored.".format(name))
+ return None
Review comment:
With little bit refactor, it looks possible to avoid the `return`
statement here.
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