exp: Add the Zenith (Light Horizon) prototype #4352
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…ry on not-found ledgers (#4582)
…ger downloads. (#4548) * Refactor and simplify Archive abstraction to incorporate MetaArchive * Actually add & use parallel downloads, preparing checkpoint chunks * Fix test structures and mocking * Fix cache to ignore on-disk if lockfile present
* Add ability to 'unset' bits and purge from index store * Simplify empty compression checks * Fix set/unset bugs with fuzzer test
* Add ability to preload cache in parallel after launching webserver * Default to 1 day of ledgers @ 6s each * Add logging instead of silent failure
Shaptic
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Shaptic
approved these changes
Jan 6, 2024
urvisavla
approved these changes
Jan 9, 2024
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PR Checklist
PR Structure
otherwise).
services/friendbot, orallordocif the changes are broad or impact manypackages.
Thoroughness
.mdfiles, etc... affected by this change). Take a look in the
docsfolder for a given service,like this one.
Release planning
needed with deprecations, added features, breaking changes, and DB schema changes.
semver, or if it's mainly a patch change. The PR is targeted at the next
release branch if it's not a patch change.
What
The working branch for the prototype Horizon, serving requests via "just-in-time" ingestion of
history archivestxmeta files.3 services:
/exp/lighthorizon. Serves web requests/exp/lighthorizon/index/batch. map/reduce style index rebuilder/exp/lighthorizon/index/single. non-distributed index rebuilder/exp/services/ledgerexporter. Runs captive-core, and outputs txmeta files.Why
So operators don't need to maintain databases.
Fixes #4317
Known limitations
See: #4317 for todo list