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fix: use least loaded broker to refresh metadata #2645

Merged
merged 1 commit into from
Sep 12, 2023
Merged

fix: use least loaded broker to refresh metadata #2645

merged 1 commit into from
Sep 12, 2023

Commits on Sep 12, 2023

  1. fix: use least loaded broker to refresh metadata 

    Seed brokers never change after client initialization. If the first seed
broker became stale (still online, but moved to other Kafka cluster),
Sarama client may use this stale broker to get the wrong metadata. To
avoid using the stale broker to do metadata refresh, we will choose the
least loaded broker in the cached broker list which is the similar to
how the Java client implementation works:

https://github.com/apache/kafka/blob/7483991a/clients/src/main/java/org/apache/kafka/clients/NetworkClient.java#L671-L736

Contributes-to: IBM#2637

Signed-off-by: Hao Sun <haos@uber.com>
    @HaoSunUber
    HaoSunUber committed Sep 12, 2023
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