Two processes, one NNTP connection each (the coordinator 40 -> 38):
- spots:read (service spotter): free.pt's overviews after the last article
seen, each spot's full header verified (lib/spotnet from voyager 1, as
Spotweb), its description, website and NZB articles; the password its
title or text names; delete/dispose messages applied.
- spots:inspect (service spot-inspector): each spot's compressed NZB read,
its files listed (spot_files), each matched to the header pass's release
by the same release identity in one of its groups within 48 h
(release_spots); unmatched spots matched again hourly, after 24 h a
release of their own (source spot) with the spot's NZB.
- release_passwords: per release and password, its source (nzb, spot-title,
spot-text) and spot; the catalog keeps only passworded.
XoverClient.head(); PROBE_CONNECTIONS default 10.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- XoverClient.bodies: PROBE_PIPELINE (8) BODY commands per connection at
once, replies read in order (one at a time it ran 3-10 articles/s on 6
connections against a queue of 1M).
- Claims in tiers: lone files first, then par2 sets and archives of
releases without a readable name (what the par2 merge needs), then those
of readable releases.
- probe_cache: final answers by message-id (status, inspection with the
16 KiB hash and par2 file list), PROBE_VERSION 2. A reset empties the
probe queue, not the cache; recreated candidates of probed articles are
answered from it without the news server.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
probe:run (compose service prober, PROBE_CONNECTIONS, default 6) claims
waiting candidates of settled releases (lone, then par2, then archive),
fetches each article with BODY over connections of its own (no
compression) and inspects it: the yEnc name and size, the content type
from the first bytes, a par2 set's files, a RAR volume's entries and
whether they're encrypted. Results per release and kind in
release_inspections (CHUNK_TABLESPACE, the HDD); on the release
passworded, inner_name (the largest content name) and inspected_at.
430 = missing, not yEnc = error, both final; connection trouble puts
the candidate back.
Fetch and parse in one process: an article takes ~0.1 s per connection,
parsing a few ms (no queue in between). Parsers from voyager 1 (lib/yenc,
lib/rar, lib/par2, lib/content sniff) with their tests; XoverClient.body;
yencode.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A worker waited on one chunk of a leased range for an hour (range
146477: five 15-minute stream timeouts, then the range took 63 s; 88
"stream: Peer disconnected" overnight). The silence timeout doesn't
catch a reply that trickles: a chunk still coming in after
NNTP_CHUNK_DEADLINE_SECONDS (300) is given up, its connection closed,
and fetched again. The report names the oldest request in flight (range,
chunk, age, bytes in) and counts deadlines.
Batches failed with "Maximum call stack size exceeded" (8 overnight):
Math.min(...segments) on a fragment with more segments than the stack
takes arguments.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Once a second: pool connections with a command in flight, loops
fetching/writing/idle; per request GROUP time, XOVER time to the status
line and the transfer, transfers with a silence over 5 s. The old
"connections busy" (fetch time of the chunks finished in the minute)
said 59-75% while all 40 connections were in flight all the time:
dropped.
Homelab: 39-40 of 40 in flight, no idle loops; the status line comes at
once, the whole 8-35 s is the transfer, with data flowing (few gaps
over 5 s): ~3 MB per chunk at 0.1-0.4 MB/s per connection.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A chunk not in after NNTP_HEDGE_AFTER_SECONDS (10) is asked again on one
of NNTP_HEDGE_CONNECTIONS spare connections; the first answer wins and
the other connection is closed (lib/nntp/hedge.ts, tested). Connections
can be retired after NNTP_CONNECTION_MAX_MINUTES (±25%). The prefetch
report counts hedges and slow first requests by connection age.
Homelab, 15 min each: hedging on (40 + 6) 280k articles/s, off 273k.
The second request won about half of its races, but ~25-35% of first
requests were slow (>10 s) at every connection age, so neither helps:
Eweka is slow under our load, not on particular connections. Both
off by default; the age statistics stay.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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>
On homelab (1 Gbit, 20 connections, ~630k articles/s) the coordinator
used 1.3-1.7 cores, mostly GC of the text it inflated only to know a
compressed reply was complete, plus a copy of every reply. A raw reply
is now complete when it ends in ".\r\n" (no copy): 0.4-0.5 cores at
the same rate.
".\r\n" can also end a network read inside the compressed data (~1 in
16M reads, a few dozen times over the whole target). Such a chunk
doesn't inflate on the worker: it reports it (POST ranges/:id/corrupt),
the spooled chunk is removed and the range goes back to the queue; the
prefetcher fetches it again. The rest of that reply breaks the
connection's next command, so the connection is replaced.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
It waited for every chunk in flight, and a connection the server held
back (after killed coordinators left sessions open) waits up to the
10-minute reply timeout: it never seemed to stop. It now waits at most
15 s, then closes all connections, busy ones too; the greeting and login
time out after 30 s. And run() ends with terminate(), as edge:node does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The coordinator logs a line a minute: chunks fetched, articles/s,
seconds a chunk, how busy its connections were. It showed the
workstation's runs are bound by its 100 Mbit line now (10 connections
99% busy, ~89 Mbit/s: compressed XOVER is ~69 B an article on recent
boneless), not by the code.
The check that a compressed reply is complete (inflating it) ran on the
coordinator's event loop, ~60 ms a chunk; now on a thread-pool thread.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
XoverClient joined all received pieces into one buffer on every arrival
(quadratic for a 2.6 MB reply), and turned the inflated check into text
the raw path doesn't use. The coordinator under load (3 workers, 4
connections): busy 40% → 13% of a core, Buffer.concat gone from the
profile. (master's relay uses the same client.)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- groups:add / ranges:plan / nodes:create / coordinator:run commands
- the node API: lease, the range's chunks as one framed stream from the
spool, batches, heartbeat, finish, release (node guard, token per node)
- edge:node: needs COORDINATOR_URL and NODE_TOKEN only (placeholders for
the rest), posts a batch every 10 chunks, gives its range back on SIGTERM
- releases are gathered per batch: 1.04 chunk rows per release at 10
chunks per batch (1.35 when built per XOVER chunk)
- partitions are checked per batch instead of remembered
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
lib/nntp (XOVER client, Xref, GROUP), lib/headers (subjects, file keys,
segments from overview lines; the yEnc path stays behind for phase 2),
lib/release (identity, random names, now in lib), lib/files (aggregator,
volume names), lib/rules (posting tools, owner by priority, release
verdicts), lib/chunks (release chunk codec). Their unit tests came along;
new ones for codec, rules and volumes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The rebuild branch starts over (REBUILD.md): the API starter kit, with
Postgres instead of SQLite (its own database, DB_SEARCH_PATH for a
shared one in development) and the #lib alias. Phase 1's code is
imported from the current app module by module.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
For 2026 a.b.ath articles Eweka's gzip replies have a long tail (p90 12.4 s
per 20k vs 3.9 s plain; 6.1k vs 10.5k headers/s). SEED_NNTP_COMPRESS turns
compression back on; plain replies are deflated for nodes asynchronously.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Five ranges "never answered" in 10 minutes, yet their chunk came back in
0.3 s on a fresh connection: the news server drops idle connections
without telling, and the pool's next request on one waited for the
10-minute inactivity timeout. Now: SEED_NNTP_TIMEOUT_MS 90 s (inactivity;
slow ranges keep streaming), one retry on a fresh connection, and pooled
connections idle over 60 s are replaced before use.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The seed API keeps a pool of NNTP connections (SEED_NNTP_CONNECTIONS) and
serves GET /api/v1/seed/ranges/:id/chunk?from=&to= for leased ranges:
the gzip stream the news server sent, passed on unopened. seed:node fetches
that way by default (SEED_FETCH=relay), so a node needs only a token and
SEED_CONNECTIONS; SEED_FETCH=direct keeps its own NNTP connections. All
fetching then comes from the indexer's IP (the account allows two).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- seed:node logs in to NNTP before taking a range and keeps the connection
across ranges (replaced after 2 minutes idle or a failed range). A node
that can't reach its news server takes no range: two ranges were set
aside as failed while an office node's tunnel was being set up
(ECONNREFUSED 127.0.0.1:1563, five leases each). After an IP-address
limit refusal it waits 5 minutes.
- NNTP_TLS_SERVERNAME: the hostname the TLS certificate is checked
against when NNTP_HOST is a tunnel ("Hostname/IP does not match
certificate's altnames: Host: localhost").
- seed-node/README: the IP-address limit and tunnelling.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A seeding node that waited over two minutes for the seed API (restarting)
had its idle NNTP connection closed by its own timeout, and gave its range
back. Now the timeout runs only while a reply is awaited.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- lib/nntp/xover_client: a minimal one-connection client for seed:range
with XFEATURE COMPRESS GZIP (a zlib stream after "224 … [COMPRESS=GZIP]",
then a "." line; 420 for an empty range). About 6x less header traffic.
Overviews come out with the field names nntp-js uses.
- SfvService.claimAll: one sfv_entries lookup per stored batch.
- Fragments go through the regular ingest path beside fetching (at most
two batches in flight); a failure fails the run at the end.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Spotnet (CONCEPT D29):
- Index free.pt fully and import spots with their descriptions, categories
and NZBs; a spot renames its release, since Spotnet names are more
trustworthy than names derived from subjects.
- Find passwords in spot descriptions too, and tell "needs a password we
have" from "needs a password we don't have".
Content inspection:
- List the contents of 7z (.7z.001) archives, SFV sets, nicovideo uploads
and other archive-like files; mark yEncBin .bin containers as encrypted.
- Take real names from yEnc headers for randomly named files, and merge
uploads that were split across posts.
Storage (D31, D32):
- Store segment lists zstd-compressed behind the FileStore accessor.
- group:backfill indexes older headers at low priority and pauses when
the NVMe or HDD part of the database gets too large.
Grouping (D35, D36):
- Lone header segments wait in staged_segments until a second segment of
their file arrives, which drops the per-article junk binaries.
- Counter grouping joins random-subject uploads by poster, [i/M] counter,
part count and day.
Search and maintenance (D33, D34):
- A trigram-indexed search_text column, smaller indexes, estimated stats.
- Passes that clean up nonsense names; weekly index maintenance; GC budgets
per kind.
- Web UI: grey out stale results while a search runs and cancel superseded
requests. Count only up to 1,000 matches for the page, which made filter
clicks take seconds (Newznab keeps the 10,000 cap).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
