[feat][pip] PIP-426: Enable Consumer Throttling and Accurate Unacknowledged Message Tracking for Exclusive and Failover Subscriptions#24396

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berg223 wants to merge 20 commits intoapache:masterfrom

berg223:fix_consumer_throtting_and_cumulative_unacked_stats

Commits on Jun 3, 2025

[fix][broker] fix unacked message count is zero when using exclusive subscription
berg223
committed

Commits on Jun 4, 2025

[fix][broker] rollback and handle acks when using Exclusive and Failover
berg223
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Update pulsar-broker/src/main/java/org/apache/pulsar/broker/service/Consumer.java

berg223
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lhotari
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[fix][broker] test negative ack
berg223
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Commits on Jun 7, 2025

[fix][broker] support batch mode
berg223
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Commits on Jun 9, 2025

[fix][broker] fix CI failure
berg223
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