do_get: use TTL map to store task state #108
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| pub(super) runtime: Arc<RuntimeEnv>, | ||
| #[allow(clippy::type_complexity)] | ||
| pub(super) stages: DashMap<StageKey, Arc<OnceCell<(SessionState, Arc<ExecutionStage>)>>>, | ||
| pub(super) stages: TTLMap<StageKey, Arc<OnceCell<TaskData>>>, |
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Oncecell must be in an Arc so we can copy the oncecell after it has been initialized without resetting it
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Nice! just some minor comments, +1
The remove() method allows explicit deletion of entries from the TTLMap before they expire naturally.
The do_get call now evicts task state from the map after N calls where N is the number of partitions. This is an approximation because we don't track that unique partition ids are used, so we might evict early in case of retries. The TTLMap will also GC orphaned task state after the configured TTL period.
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TYFR! |
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Closes #90 |
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ttl_map: add remove() method and tests
The remove() method allows explicit deletion of entries from the TTLMap before they expire naturally.
do_get: use TTL map to store task state
The do_get call now evicts task state from the map after N calls where N
is the number of partitions. This is an approximation because we don't
track that unique partition ids are used, so we might evict early in case
of retries.
The TTLMap will also GC orphaned task state after the configured TTL period.