Files
usenet-indexer/config/coordinator.ts
T
Daan MeijerandClaude Opus 5.5 fd0f2bde75 Rebuild: the live tail
coordinator:run plans the articles after each group's last range every
TAIL_EVERY_SECONDS (120): one LIST ACTIVE per name prefix gives every
group's newest article, and new articles become ranges at priority -1,
leased and prefetched before any history. A group gets a tail range once
it has TAIL_MIN_ARTICLES (100k, a chunk) new or its last planning is
TAIL_MAX_DELAY_MINUTES (15) ago, so quiet groups don't make a range every
round. History (planAll, hourly) is now only for groups not planned yet.
ranges:plan --tail plans one round.

Found on the way: with XFEATURE COMPRESS GZIP on, Eweka compresses LIST
ACTIVE's reply too ("215 NewsGroups Follow [COMPRESS=GZIP]"), and
listActive waited for a plain end that never came (groups:add --top too).
It reads the compressed reply now; the fake server in the test does both.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-09 10:41:16 +02:00

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import env from '#start/env'
import app from '@adonisjs/core/services/app'
/** The coordinator (REBUILD.md, part 1). */
export default {
/** Articles per range. */
rangeArticles: env.get('RANGE_ARTICLES', 2_000_000),
/**
* Articles per XOVER chunk (spool files, stream frames). Eweka takes
* ~1.5–2 s per command whatever its size: one connection read 9–15k
* lines/s in chunks of 25k, ~20k in 50k, ~30k in 100k and 200k (LOG.md
* 2026-10-09).
*/
chunkArticles: env.get('CHUNK_ARTICLES', 100_000),
/**
* The live tail (REBUILD.md, coordinator): new articles become ranges
* every `everySeconds` (one LIST ACTIVE per name prefix), leased and
* fetched before any history. A group gets a tail range once it has
* `minArticles` new (a chunk) or its oldest unplanned article waited
* `maxDelayMinutes`, so a quiet group doesn't make a range every round.
*/
tail: {
everySeconds: env.get('TAIL_EVERY_SECONDS', 120),
minArticles: env.get('TAIL_MIN_ARTICLES', 100_000),
maxDelayMinutes: env.get('TAIL_MAX_DELAY_MINUTES', 15),
/** Before the history's 0 (oldest) … 1000 (newest). */
priority: -1,
},
/** A leased range without a heartbeat for this long goes back to the queue. */
leaseTtlSeconds: env.get('LEASE_TTL_SECONDS', 15 * 60),
/** NNTP connections the coordinator fetches headers with. */
nntpConnections: env.get('NNTP_CONNECTIONS', 4),
/** A reply with no data for this long fails (old ranges answer slowly). */
nntpTimeoutMs: env.get('NNTP_TIMEOUT_MS', 10 * 60 * 1000),
spool: {
dir: env.get('SPOOL_DIR', app.tmpPath('spool')),
/** Ranges kept fetched ahead, per active lease. */
aheadPerLease: env.get('SPOOL_AHEAD_PER_LEASE', 2),
/** At least this many ranges ahead, so the first leases start at once. */
minAhead: env.get('SPOOL_MIN_AHEAD', 2),
maxBytes: env.get('SPOOL_MAX_GB', 10) * 1e9,
},
}