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feat(consumer): Add metrics for partitions assigned and revoked #497

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Merged
lvthanh03 merged 2 commits into from
Oct 9, 2025
Merged

feat(consumer): Add metrics for partitions assigned and revoked #497

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feat(consumer): Add metrics for partitions assigned and revoked
lvthanh03 Oct 8, 2025
576b4bb
Use gauge sets
lvthanh03 Oct 8, 2025
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6 changes: 6 additions & 0 deletions src/kafka/consumer.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,9 @@ impl ConsumerContext for KafkaContext {
info!("Partition assignment event sent, waiting for rendezvous...");
let _ = rendezvous_receiver.recv();
info!("Rendezvous complete");
metrics::counter!("arroyo.consumer.partitions_assigned.count")
.increment(tpl.count() as u64);
metrics::gauge!("arroyo.consumer.current_partitions").increment(tpl.count() as f64);
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}
Rebalance::Revoke(tpl) => {
debug!("Got pre-rebalance callback, kind: Revoke");
Expand All @@ -165,6 +168,9 @@ impl ConsumerContext for KafkaContext {
info!("Partition revocation event sent, waiting for rendezvous...");
let _ = rendezvous_receiver.recv();
info!("Rendezvous complete");
metrics::counter!("arroyo.consumer.partitions_revoked.count")
.increment(tpl.count() as u64);
metrics::gauge!("arroyo.consumer.current_partitions").decrement(tpl.count() as f64);
}
Rebalance::Error(err) => {
debug!("Got pre-rebalance callback, kind: Error");
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