tidaldb/tidalctl/src/commands/mod.rs
jx12n a946c6128c fix(m12-rc13): read-SLA collapse + WAL_RETENTION_SEGMENTS 16 + tidalctl S3 DR
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
2026-06-17 15:47:37 -06:00

15 lines
509 B
Rust

//! The `tidalctl` subcommands, one module each.
//!
//! Each module exposes a single `run(...)` entry point returning
//! `(rendered_output, exit_code)`; `main` dispatches to them and prints the
//! output. The exit-code contract (0 = ok/empty, 1 = usage/internal, 2 =
//! degraded/unreadable) is documented in the crate-root `//!` header.
pub(crate) mod backup;
pub(crate) mod diagnostics;
pub(crate) mod paths;
pub(crate) mod recover;
pub(crate) mod s3;
pub(crate) mod scope_stats;
pub(crate) mod status;