a946c6128c
Read-SLA fix (rc12→rc13 — cpu-cgroup starvation → multi-second p99 + churning elections): - offload.rs: add SEARCH_GATE semaphore (core_count+1 permits, 50ms shed to 429) so per-shard searches gate on CPU, not reactor threads; concurrent scatter_merge fan-out (join_all) replaces the serial blocking offload_region_read loop - node.rs: scatter_merge → async; per-shard futures run via offload_search (each acquires one SEARCH_GATE permit, moves it into spawn_blocking so the permit is held for the search's full CPU lifetime) - main.rs: explicit tokio runtime with worker_threads floored at 4, independent of the cgroup quota — keeps the control plane (heartbeat/election/apply) on its own workers even when quota < 4 - k8s statefulset: CPU limit 2→3 (was: available_parallelism()=2 → only 2 async workers; search burst starved the reactor) - tidal/wal/compaction.rs: WAL_RETENTION_SEGMENTS 4→16 (64 MiB→256 MiB per-shard catch-up window; a briefly-down follower across a rolling restart streams up instead of forcing snapshot reseed; disk floor 768 MiB/pod, self-trimming) - cluster_reseed.rs: OFFLINE_ITEMS 1800→5600 to exceed the new 16-segment retention window (19 segs > 17); fix sequential quarantine/reseed race via await_status_bool tidalctl S3/R2 backup DR: - tidalctl/Cargo.toml: aws-config, aws-sdk-s3, aws-credential-types, tokio, tempfile - commands/s3.rs: S3Target + export_dir (upload every file, manifest last as atomicity marker) + import_to_dir (download prefix into temp staging dir) - commands/backup.rs: run_backup/run_restore accept Option<&S3Target>; S3 export is additive after local fsync barrier; S3 import stages into TempDir then runs the unchanged verified restore on it - main.rs: --s3-endpoint / --s3-bucket / --s3-prefix flags; all-or-nothing endpoint+bucket validation; usage updated tidal-stress/k8s: recall-rc12-spread-job, soak-nightly-cronjob, soak-monitor, soak-results-pvc, t5-readtput-job manifests
68 lines
2.5 KiB
YAML
68 lines
2.5 KiB
YAML
# T5 read-throughput (the measurable half): how many /vector_search ops/s the
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# 3-node cluster sustains within SLA, spread round-robin across all 3 pods.
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# (T5-as-written's 2.5x WRITE-scaling is structurally impossible on 3-node RF3
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# full placement — proven in docs/profiling/m12p4-t5-sharded-throughput.md.)
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apiVersion: batch/v1
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kind: Job
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metadata:
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name: tidal-t5-readtput
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namespace: tidaldb-cluster
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labels: { app.kubernetes.io/name: tidal-stress, app.kubernetes.io/part-of: tidaldb }
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spec:
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backoffLimit: 0
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ttlSecondsAfterFinished: 7200
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template:
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metadata:
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labels: { app.kubernetes.io/name: tidal-stress, app.kubernetes.io/part-of: tidaldb }
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spec:
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restartPolicy: Never
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automountServiceAccountToken: false
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securityContext: { runAsNonRoot: true, runAsUser: 1000, runAsGroup: 1000, seccompProfile: { type: RuntimeDefault } }
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containers:
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- name: stress
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image: registry.threesix.ai/tidal/stress:m12-rc7-seedretry
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imagePullPolicy: IfNotPresent
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args:
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- --target
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- https://tidaldb-0.tidaldb-peers.tidaldb-cluster.svc.cluster.local:9500
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- --target
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- https://tidaldb-1.tidaldb-peers.tidaldb-cluster.svc.cluster.local:9500
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- --target
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- https://tidaldb-2.tidaldb-peers.tidaldb-cluster.svc.cluster.local:9500
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- --ca-cert
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- /etc/tidaldb/tls/ca.crt
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- --verify-recall
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- --skip-seed
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- --corpus
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- "100000"
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- --embedding-dim
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- "1536"
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- --recall-k
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- "10"
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- --recall-queries
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- "1000"
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- --read-p99-target-ms
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- "10"
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- --recall-target
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- "0.95"
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- --recall-ef-search
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- "64"
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- --ramp
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- "1000:20,2000:20,3000:20,3800:20"
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env:
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- name: TIDAL_API_KEY
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valueFrom: { secretKeyRef: { name: tidaldb-credentials, key: TIDAL_API_KEY } }
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- name: TIDAL_STRESS_LOG
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value: warn
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resources:
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requests: { cpu: "1", memory: 512Mi }
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limits: { cpu: "3", memory: 2Gi }
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securityContext: { allowPrivilegeEscalation: false, readOnlyRootFilesystem: true, capabilities: { drop: ["ALL"] } }
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volumeMounts:
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- { name: cluster-tls, mountPath: /etc/tidaldb/tls, readOnly: true }
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volumes:
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- name: cluster-tls
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secret:
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secretName: tidaldb-cluster-tls
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items: [ { key: ca.crt, path: ca.crt } ]
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