Harmon
73ad03fa59
Scanner - manifest lookup is now depth-bounded and prunes numeric zoom directories, so a scan no longer walks the whole tile payload - rescans only report a version as updated when something actually changed - overlapping runs are refused instead of interleaving their bookkeeping Hot path - token authorisation loads only that token grants and throttles the last_used_at write instead of touching it on every tile - SQLite runs in WAL with a busy timeout and a real connection pool - the catalog lookup used by /tiles no longer loads every basemap Security - the admin surface requires ADMIN_TOKEN (bearer) or ADMIN_USER/ADMIN_PASSWORD (basic), and the service refuses to bind off-host without credentials - CORS is an explicit allow-list; newly minted tokens never reach a redirect URL - client tokens are redacted from the access log Operations - resource health inspection flags a moved or deleted tile root before a 404 - pushes retry with backoff and can be re-queued by hand; the schedule lives in the database so a restart does not lose it - access log plus /metrics counters Image slicing - tile_jobs drive the GDAL bundled with QGIS via scripts/gdal2tiles-qgis.bat - layer_sources remembers what a layer is made of: submit one source to append a flight, or all of them to rebuild the layer as a VRT mosaic with no tile seams; the console exposes both, including a one-click rebuild - slicing is available to integrations through a narrow slice token scope (submit, poll, idempotent by code, completion callback) Console - rebuilt around a fixed rail and single-view navigation with health and outstanding work leading, instead of one long scrolling page Windows service - native install/start/stop/status with crash recovery, auto-start and a rotating log file, so no NSSM wrapper is needed - start-all.bat and stop-all.bat are removed: they killed the process by port with taskkill, which fought the service restart policy Verified with 49 tests and live runs against real tile data and real GDAL.
99 lines
2.2 KiB
Go
99 lines
2.2 KiB
Go
package basemap
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import (
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"context"
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"log"
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"time"
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)
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const (
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// pushRetryInterval is how often due retries are looked for.
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pushRetryInterval = 15 * time.Second
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// tileJobInterval is how often the queue is checked for new jobs.
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tileJobInterval = 2 * time.Second
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)
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// StartBackgroundWorkers launches the periodic maintenance loops: resource
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// health inspection, push retries and the tile slicing queue. Close stops them.
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// Calling it more than once has no additional effect.
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func (s *Store) StartBackgroundWorkers() {
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s.bgOnce.Do(func() {
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ctx, cancel := context.WithCancel(context.Background())
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s.bgCtx = ctx
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s.bgCancel = cancel
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s.bgWG.Add(1)
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go func() {
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defer s.bgWG.Done()
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s.healthLoop(ctx)
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}()
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s.bgWG.Add(1)
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go func() {
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defer s.bgWG.Done()
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s.pushRetryLoop(ctx)
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}()
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s.bgWG.Add(1)
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go func() {
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defer s.bgWG.Done()
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s.tileJobLoop(ctx)
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}()
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})
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}
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func (s *Store) healthLoop(ctx context.Context) {
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// Prime the catalog immediately so a resource that vanished since the last
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// scan shows up without waiting a full interval.
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if _, err := s.CheckHealth(ctx); err != nil && ctx.Err() == nil {
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log.Printf("health check failed: %v", err)
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}
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interval := s.cfg.HealthCheckInterval
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if interval <= 0 {
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return
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}
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ticker := time.NewTicker(interval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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if _, err := s.CheckHealth(ctx); err != nil && ctx.Err() == nil {
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log.Printf("health check failed: %v", err)
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}
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}
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}
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}
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func (s *Store) pushRetryLoop(ctx context.Context) {
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ticker := time.NewTicker(pushRetryInterval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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if err := s.dispatchPushRetries(ctx); err != nil && ctx.Err() == nil {
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log.Printf("push retry dispatch failed: %v", err)
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}
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if err := s.dispatchTileJobCallbacks(ctx); err != nil && ctx.Err() == nil {
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log.Printf("tile job callback dispatch failed: %v", err)
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}
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}
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}
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}
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func (s *Store) tileJobLoop(ctx context.Context) {
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ticker := time.NewTicker(tileJobInterval)
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defer ticker.Stop()
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for {
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s.dispatchTileJobs(ctx)
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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}
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}
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}
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