Conversation
…queue Previously: single-entry cache — every new DX click evicted the previous prediction, forcing a fresh ITURHFProp call (10s+ wait). With the service down, users got nothing. Now: - Multi-entry LRU cache (200 entries, 30-min TTL) — clicking between DX targets serves cached P.533-14 results instantly - Background fetch queue — if cache misses, serve built-in model immediately and queue ITURHFProp in background. Next poll (10 min) or re-click gets the precise result - Path coordinates rounded to 0.5° for better cache hit rate - Users always get an instant response (never "loading...") Flow: click DX → cache hit? serve P.533-14 instantly. Cache miss? serve built-in model + fire background ITURHFProp. Next request → P.533-14 from cache. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
When new DX callsigns appear in the cluster, immediately queue background ITURHFProp requests using the server's configured DE location. By the time a user clicks the spot, the precise P.533-14 prediction is already cached — no waiting. Also exposed prewarmPropagation() from propagation module so other routes can trigger pre-warming for known paths. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What does this PR do?
Type of change
How to test
Checklist
server.js: caches have TTLs and size caps (we serve 2,000+ concurrent users)var(--accent-cyan), etc.).bak,.old,console.logdebug lines, or test scripts includedScreenshots (if visual change)