leventov commented on a change in pull request #7038: Fix and document
concurrency of EventReceiverFirehose and TimedShutoffFirehose; Refine
concurrency specification of Firehose
URL: https://github.com/apache/incubator-druid/pull/7038#discussion_r255669175
##########
File path:
server/src/main/java/org/apache/druid/segment/realtime/firehose/EventReceiverFirehoseFactory.java
##########
@@ -411,13 +506,31 @@ public Response shutdown(
}
try {
- DateTime shutoffAt = shutoffTime == null ? DateTimes.nowUtc() :
DateTimes.of(shutoffTime);
- log.info("Setting Firehose shutoffTime to %s", shutoffTime);
- exec.schedule(
- this::close,
- shutoffAt.getMillis() - System.currentTimeMillis(),
- TimeUnit.MILLISECONDS
- );
+ DateTime shutoffAt = shutoffTimeMillis == null ? DateTimes.nowUtc() :
DateTimes.of(shutoffTimeMillis);
+ log.info("Setting Firehose shutoffTime to %s", shutoffTimeMillis);
+ long shutoffTimeoutMillis = Math.max(shutoffAt.getMillis() -
System.currentTimeMillis(), 0);
+
+ requestedShutdownTimeNsHolder.set(System.nanoTime() +
TimeUnit.MILLISECONDS.toNanos(shutoffTimeoutMillis));
+ Thread delayedCloseExecutor = this.delayedCloseExecutor;
+ // Need to interrupt delayedCloseExecutor because a newly specified
shutdown time might be closer than idle
+ // timeout or previously specified shutdown. Interruption of
delayedCloseExecutor lets it adjust the sleep time
+ // (see the logic of this thread in createDelayedCloseExecutor()).
+ boolean needToInterruptDelayedCloseExecutor = true;
+ if (delayedCloseExecutor == null) {
Review comment:
This is fair, removed double-checked locking.
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