Metric Catalog

Generated from crates/astra-core/src/metrics.rs.

Metric	Type	Description
astra_bg_io_sqe_throttle_events_total	counter	Total background SQE throttle wait events.
astra_bg_io_sqe_tokens_available	gauge	Current available tokens in the background SQE token bucket.
astra_bg_io_sqe_wait_seconds	histogram	Time spent waiting for background SQE operation budget.
astra_bg_io_throttle_events_total	counter	Total background IO throttle wait events.
astra_bg_io_throttle_wait_seconds	histogram	Time spent waiting for background IO token-bucket budget.
astra_bg_io_tokens_available	gauge	Current available tokens in the background IO token bucket.
astra_forward_retry_attempts_total	counter	Total forwarded RPC retry attempts.
astra_gateway_read_ticket_hits_total	counter	Total gateway read requests that reused an active read ticket.
astra_gateway_read_ticket_misses_total	counter	Total gateway read requests that required a fresh quorum check.
astra_gateway_singleflight_leader_total	counter	Total gateway read requests elected as singleflight leaders.
astra_gateway_singleflight_overflow_total	counter	Total gateway read requests that bypassed singleflight due to waiter cap.
astra_gateway_singleflight_waiter_timeouts_total	counter	Total gateway waiter requests that timed out waiting for singleflight leader completion.
astra_gateway_singleflight_waiter_total	counter	Total gateway read requests collapsed behind an in-flight leader request.
astra_large_value_hydrate_cache_hits_total	counter	Total hydrate cache hits for large-value tier references.
astra_large_value_hydrate_cache_misses_total	counter	Total hydrate cache misses for large-value tier references.
astra_large_value_hydrate_seconds	histogram	Duration of large-value hydrate read operations from object tier.
astra_large_value_upload_failures_total	counter	Total failed large-value tier upload attempts.
astra_large_value_upload_seconds	histogram	Duration of large-value tier upload operations.
astra_list_prefetch_hits_total	counter	LIST prefetch cache hits.
astra_list_prefetch_misses_total	counter	LIST prefetch cache misses.
astra_list_prefix_filter_hits_total	counter	LIST requests processed after prefix filter positive hit.
astra_list_prefix_filter_skips_total	counter	LIST requests skipped by prefix negative filter.
astra_list_revision_filter_hits_total	counter	LIST requests processed after prefix+revision filter hit.
astra_list_revision_filter_skips_total	counter	LIST requests skipped by prefix+revision filter.
astra_list_stream_bytes_total	counter	Total bytes emitted via admin StreamList chunks.
astra_list_stream_chunks_total	counter	Total streamed LIST chunks emitted via admin StreamList.
astra_list_stream_hydrated_bytes_total	counter	Total hydrated payload bytes emitted via admin StreamList.
astra_list_stream_hydrated_values_total	counter	Total tiered values hydrated while emitting admin StreamList chunks.
astra_lsm_synth_l0_files	gauge	Synthetic L0 file pressure estimate derived from WAL queues.
astra_profile_active_auto	gauge	Active profile gauge (1 when active).
astra_profile_active_gateway	gauge	Active profile gauge (1 when active).
astra_profile_active_kubernetes	gauge	Active profile gauge (1 when active).
astra_profile_active_omni	gauge	Active profile gauge (1 when active).
astra_profile_applied_bg_io_tokens_per_sec	gauge	Last profile-applied background IO token rate.
astra_profile_applied_prefetch_entries	gauge	Last profile-applied list prefetch cache entry cap.
astra_profile_applied_put_linger_microseconds	gauge	Last profile-applied put linger in microseconds.
astra_profile_applied_put_max_requests	gauge	Last profile-applied put max_requests.
astra_profile_switch_total	counter	Total profile transitions applied by the governor.
astra_put_batch_requests_total	counter	Total put requests dispatched through the batcher.
astra_put_batch_size	histogram	Number of put operations per dispatched batch.
astra_put_batches_total	counter	Total dispatched put batches.
astra_put_inflight_requests	gauge	Current estimated in-flight put requests (queued + dispatched).
astra_put_normal_queue_depth	gauge	Current estimated queued normal put requests.
astra_put_queue_wait_normal_seconds	histogram	Queue wait time between enqueue and batch dispatch for normal put requests.
astra_put_queue_wait_seconds	histogram	Queue wait time between enqueue and batch dispatch for put requests.
astra_put_queue_wait_tier0_seconds	histogram	Queue wait time between enqueue and batch dispatch for tier0 put requests.
astra_put_quorum_ack_seconds	histogram	Time from batch submit to commit advancement signal.
astra_put_raft_client_write_seconds	histogram	Duration of raft client_write for put batches.
astra_put_tier0_bypass_write_pressure_total	counter	Total tier0 requests bypassing write-pressure control.
astra_put_tier0_dispatch_total	counter	Total tier0 batches dispatched.
astra_put_tier0_enqueued_total	counter	Total tier0 put requests enqueued.
astra_put_tier0_queue_depth	gauge	Current estimated queued tier0 put requests.
astra_raft_append_rpc_client_seconds	histogram	Leader-side append_entries RPC duration.
astra_raft_append_rpc_failures_total	counter	Total failed append_entries RPC attempts.
astra_raft_append_rpc_server_seconds	histogram	Follower-side append_entries handler duration.
astra_raft_install_snapshot_rpc_client_seconds	histogram	Leader-side install_snapshot RPC duration.
astra_raft_install_snapshot_rpc_failures_total	counter	Total failed install_snapshot RPC attempts.
astra_raft_install_snapshot_rpc_server_seconds	histogram	Follower-side install_snapshot handler duration.
astra_raft_snapshot_build_seconds	histogram	Duration of raft snapshot materialization.
astra_raft_snapshot_install_deserialize_seconds	histogram	Duration of follower snapshot payload deserialization.
astra_raft_snapshot_install_load_seconds	histogram	Duration of follower snapshot state load into the KV store.
astra_read_isolation_dispatch_total	counter	Total read requests routed through isolated read lane.
astra_read_isolation_failures_total	counter	Total isolated read dispatch failures that required inline fallback.
astra_read_quorum_checks_total	counter	Total linearizable read quorum checks attempted.
astra_read_quorum_failures_total	counter	Total linearizable read quorum check failures.
astra_read_quorum_internal_total	counter	Total quorum-related internal read errors.
astra_request_delete_total	counter	Total delete range requests.
astra_request_get_total	counter	Total GET-like range requests.
astra_request_lease_total	counter	Total lease API requests.
astra_request_list_total	counter	Total LIST/prefix range requests.
astra_request_put_total	counter	Total put requests.
astra_request_tier0_total	counter	Total requests classified as tier0 critical.
astra_request_txn_total	counter	Total txn requests.
astra_request_watch_total	counter	Total watch stream requests.
astra_semantic_cache_hits_total	counter	Total semantic hot-cache hits.
astra_semantic_cache_misses_total	counter	Total semantic hot-cache misses.
astra_transport_closed_conn_unavailable_total	counter	Total unavailable responses attributed to closed transport connections.
astra_wal_allocated_bytes	gauge	Current allocated WAL file bytes on disk.
astra_wal_checkpoint_reclaimed_bytes_total	counter	Total physical WAL bytes reclaimed by checkpoint compaction.
astra_wal_checkpoint_seconds	histogram	Duration of WAL checkpoint compaction rewrites.
astra_wal_checkpoint_total	counter	Total WAL checkpoint compaction rewrites.
astra_wal_effective_linger_microseconds	gauge	Effective WAL linger currently applied.
astra_wal_logical_bytes	gauge	Current durable WAL bytes containing replayable records.
astra_wal_queue_bytes	gauge	Current queued WAL payload bytes waiting for flush.
astra_wal_queue_depth	gauge	Current queued WAL frames waiting for flush.
astra_watch_active_streams	gauge	Current number of active watch streams.
astra_watch_delegate_accept_total	counter	Total watch requests accepted on non-leader nodes by delegation policy.
astra_watch_delegate_reject_total	counter	Total watch requests rejected by watch role policy.
astra_watch_dispatch_queue_depth	gauge	Current watch stream response queue depth estimate.
astra_watch_emit_batch_size	histogram	Number of watch events emitted per streamed watch response.
astra_watch_emit_lag_seconds	histogram	Delay between commit timestamp and watch event emission.
astra_watch_lagged_skipped_events_total	counter	Total watch events skipped by lagged watch receivers.
astra_watch_lagged_total	counter	Total watch lag events observed from the broadcast ring.
astra_watch_resync_keys_total	counter	Total keys emitted via watch lag-compression resync.
astra_watch_resync_total	counter	Total watch lag-compression resync attempts.
astra_watch_slow_cancels_total	counter	Total watch streams canceled due to slow consumer backpressure.
astra_write_reject_events_total	counter	Total write requests rejected by L0 pressure control.
astra_write_stall_band_5_events_total	counter	Total writes delayed by the L0==5 pressure band.
astra_write_stall_band_6_events_total	counter	Total writes delayed by the L0==6 pressure band.
astra_write_stall_band_7_plus_events_total	counter	Total writes delayed by the L0>=7 pressure band.
astra_write_stall_delay_seconds	histogram	Write stall delay injected by L0 pressure controller.
astra_write_stall_events_total	counter	Total write requests delayed by L0 pressure control.