frankgh commented on code in PR #211:
URL: https://github.com/apache/cassandra-sidecar/pull/211#discussion_r2004420771
##########
server/src/main/java/org/apache/cassandra/sidecar/coordination/ClusterLeaseClaimTask.java:
##########
@@ -144,7 +147,13 @@ public ScheduleDecision scheduleDecision()
@Override
public DurationSpec initialDelay()
{
- return periodicTaskConfiguration.initialDelay();
+ // Return a randomized delay to introduce jitter among all the
instances participating
+ // in the lease claim process
+ MillisecondBoundConfiguration initialDelay =
periodicTaskConfiguration.initialDelay();
+ long millis = initialDelay.toMillis();
+ return millis <= 0
+ ? initialDelay
+ : new
MillisecondBoundConfiguration(ThreadLocalRandom.current().nextLong(millis),
TimeUnit.MILLISECONDS);
Review Comment:
it cannot be negative, it's restricted by `DurationSpec` however
`ThreadLocalRandom.current().nextLong` throws when you provide it a value that
is 0
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