ijuma commented on a change in pull request #11722:
URL: https://github.com/apache/kafka/pull/11722#discussion_r799828526
##########
File path:
clients/src/main/java/org/apache/kafka/clients/producer/internals/RecordAccumulator.java
##########
@@ -448,40 +448,48 @@ public ReadyCheckResult ready(Cluster cluster, long
nowMs) {
boolean exhausted = this.free.queued() > 0;
for (Map.Entry<TopicPartition, Deque<ProducerBatch>> entry :
this.batches.entrySet()) {
Deque<ProducerBatch> deque = entry.getValue();
+
+ final ProducerBatch batch;
+ final long waitedTimeMs;
+ final boolean backingOff;
+ final boolean full;
+
+ // Collect as little as possible inside critical region, determine
outcome after release
synchronized (deque) {
- // When producing to a large number of partitions, this path
is hot and deques are often empty.
- // We check whether a batch exists first to avoid the more
expensive checks whenever possible.
Review comment:
I think the useful context that was removed is:
> When producing to a large number of partitions, this path is hot and
deques are often empty.
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