danielsinai commented on a change in pull request #11446:
URL: https://github.com/apache/pulsar/pull/11446#discussion_r677262895
##########
File path:
pulsar-common/src/main/java/org/apache/pulsar/common/util/RateLimiter.java
##########
@@ -257,14 +271,15 @@ public synchronized TimeUnit getRateTimeUnit() {
}
synchronized void renew() {
- acquiredPermits = isDispatchRateLimiter ? Math.max(0, acquiredPermits
- permits) : 0;
+ acquiredPermits = isDispatchOrPrecisePublishRateLimiter ? Math.max(0,
acquiredPermits - permits) : 0;
if (permitUpdater != null) {
long newPermitRate = permitUpdater.get();
if (newPermitRate > 0) {
setRate(newPermitRate);
}
}
- if (rateLimitFunction != null) {
+ // release the back-pressure by applying the rateLimitFunction only
when there are available permits
+ if (rateLimitFunction != null && this.getAvailablePermits() > 0) {
Review comment:
is that still relevant?
and can you also review the test refactor?
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