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fix(run-queue): prevent concurrency keys from bloating master queue shards #3219

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Merged
ericallam merged 4 commits into from
Mar 14, 2026
Merged

fix(run-queue): prevent concurrency keys from bloating master queue shards #3219

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49b5d9f
fix(run-queue): prevent concurrency keys from bloating master queue s…
ericallam Mar 14, 2026
e2b8446
fix rebalancing master queue shards after expiring a ttl run
ericallam Mar 14, 2026
b20477d
add a server changes file
ericallam Mar 14, 2026
6f7bcc5
fix an existing run queue cooloff issue that was surfaced by this ck …
ericallam Mar 14, 2026
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6 changes: 6 additions & 0 deletions .server-changes/ck-index-master-queue-dedup.md
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---
area: webapp
type: fix
---

Concurrency-keyed queues now use a single master queue entry per base queue instead of one entry per key. Prevents high-CK-count tenants from consuming the entire parentQueueLimit window and starving other tenants on the same shard.
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