Address tokio contention messages - #6279

Merged

lutter merged 13 commits into

Jan 21, 2026

Commits on Jan 20, 2026

graph, store: Replace std::sync::RwLock with parking_lot::RwLock for pool metrics

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5201212
graph: Replace std::sync::RwLock with parking_lot::RwLock in LoadManager

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121b41e
store: Replace std::sync::RwLock with parking_lot::RwLock in store_events

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4bd926c
store: Replace std::sync::RwLock with parking_lot::RwLock in writable

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ed3fd40
graph: Replace std::sync::RwLock with parking_lot::RwLock in TimedCache

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c935301
store: Replace std::sync::RwLock with parking_lot::RwLock in BlockStore

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4ada602
graph: Replace std::sync::RwLock with parking_lot::RwLock in MetricsRegistry

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ed76c2c
core: Replace std::sync::RwLock with parking_lot::RwLock in SubgraphKeepAlive

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d92d94f
store: Add adaptive TTL cache for chain_head_ptr()

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4d84021
graph, store: Add lock-free AtomicMovingStats for pool wait tracking

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898b62d
store: Add HerdCache to chain_head_ptr() to prevent thundering herd

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06fa27a
graph, store: Add time-based connection validation to skip health checks for active connections

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36faa01
graph, store: Add periodic probe for unavailable database recovery

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b8d7458