bvolpato commented on code in PR #27702:
URL: https://github.com/apache/beam/pull/27702#discussion_r1276660690
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sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/ReadFromKafkaDoFn.java:
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@@ -311,17 +324,26 @@ public OffsetRangeTracker restrictionTracker(
if (restriction.getTo() < Long.MAX_VALUE) {
return new OffsetRangeTracker(restriction);
}
- Map<String, Object> updatedConsumerConfig =
- overrideBootstrapServersConfig(consumerConfig, kafkaSourceDescriptor);
- KafkaLatestOffsetEstimator offsetPoller =
- new KafkaLatestOffsetEstimator(
- consumerFactoryFn.apply(
Review Comment:
I may not follow why we need a pool. This proposal is to reuse the same
consumer / estimator for the same topic partition over and over -- so not more
than 1 connection.
The intent was already to use memoization, so it's clearly just an estimate
of the backlog.
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