The Database connections panel drew idle connections as their own line, which
sits on the max for ten minutes after any burst and read as the pool maxing out,
while at most two were ever in use. It now draws in use against the max, with
open dashed behind them. The pool itself goes from sqlx's ten to twenty: the
server allows 100 and had about 13 open across every app.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Kept bytes against the limit was a flat line once the cache filled. Now a
percentage of the limit beside the share served from disk, and the images each
sweep evicts. The counter shipped minutes ago as ipx_art_trimmed_total is
renamed ipx_art_evicted_total before anything came to read it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The sweep trims the cache to its limit, so the kept bytes it reports are the
limit every time once the cache has filled: the panel was two lines flat at
500 MiB. A counter of images thrown out says whether the limit is too small.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The clean-up of DeadAir's old copies probed for its table on every open, and on
Postgres each failed probe is an ERROR in the server's log: 120 an hour from the
healthcheck alone. Production ran it already and is the only database.
A scan sent a not-due skip for each of ~1,535 feeds into a broadcast of 1,024,
so a page slow to read lagged and dropped events: 443 counted in five hours.
Nothing listening uses them; the terminal and the log still get them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The healthcheck answers while the worker is stuck on one job, and nothing
showed which job or for how long. STATS, one static of atomics, is kept as
the work happens: the worker's job and since when (a guard, so a failed or
stopped job is counted too), jobs and their seconds by kind, when a scan
last finished, web requests, feed fetches and downloads in progress, bytes
downloaded, live updates dropped for a listener that fell behind, DeadAir's
backlog and how long it has been on its file, and the artwork kept. With
the event queue, the DNS retries and the healthcheck's last counts, /metrics
still reads memory only. The dashboard's Daemon row and the prod-check
skill take them up.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
/metrics shared the web server's threads, and answered after a token
lookup and three counting queries, so a pool run dry, one of the things it
is there to show, would have stalled it, and a slow scrape held a web
thread. Now [web] metrics_bind starts a listener on its own OS thread with
a current-thread runtime, reading only what is in memory: pool counts,
channel capacity, the daemon runtime's metrics through its handle, /proc.
No sign-in, as exporters have none; publish the port to the LAN only. The
feed, pending and downloaded counts stay with the healthcheck's log lines,
which the dashboard already reads.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Logs and traces show requests, scans and downloads; nothing showed what
the daemon holds meanwhile. /metrics, behind sign-in, gives database
connections in use and idle against the pool's maximum, commands waiting
for the worker, live-update listeners, free torrent slots, episodes
playing through DeadAir, the library's counts, the tokio runtime's
workers, tasks and queue, and the process's memory and open files, in
Prometheus's text format, written by hand rather than with a client
library. Not logged or traced: Prometheus asks every 15 s. The iPX
dashboard gains a Daemon row of them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
stale_unsubscribed takes the newest item of every unsubscribed feed, 2-5 s
warm and up to 12 s in production, and reap ran it before each scan, every
few minutes, holding up the sequential worker's scans and downloads. Its
thresholds are a month dead and a year quiet, so a day is plenty. Kept in
memory: a restart looks again at once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
hls.js sends traceparent on its own requests (xhrSetup); a beacon, which
cannot set a header, and Safari's player, fetching the playlist itself,
carry it in the query, which the server reads where there is no header.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
All Subscriptions took 130-170 ms when used a minute before, and 0.5-1.9 s
the first time after a quiet spell. Its sort needs each item's date, which
was only in the item's row, so every one of a person's 13,700 rows was
read, show notes inline and all, and cold that came off disk; count_in,
which needs no date, took 20 ms throughout. entries_by_time holds the keys
and dates, the page's keys are sorted and cut from it, and only the rows
shown are read. On a copy of the shape in the test database: 619 pages
read against 4,174, with no visit to the table. Neither change alone
helped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Nothing the page did in the browser reached the logs: a DeadAir playback
failure on the phone was a toast and nothing more. POST /api/client takes
page errors, unhandled rejections, hls.js and media errors, the time from
play to sound and the length of a stall, and logs them as ev lines under
ipx::client, inside the request's span. Only those kinds are taken, the
text cut to 500 characters, and the page sends each at most once a minute.
The page's API requests send traceparent, a new trace id for each tap or
key, and the server's request span takes it as its parent, so one action's
requests are one trace in Tempo, the report included. The stub DOM the
smoke and native-bridge tests run in gains crypto and performance, which
every browser the page runs in has.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Played from ipodderx.sdf1.net, DeadAir's audio reached ipx as one request
with no Range header: Cloudflare caches by extension, deadair.mp3 has one,
and /media said nothing about caching, so Cloudflare fetched the whole file
and served ranges from its own copy, to anyone Access let in, without the
subscriber check (#129). /media/{id} has no extension and was never cached.
Cache-Control: private on every media response, the save included.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A 47 s reap had a trace of one span, so whether the time went on checking
every file on disk, the database or deleting could not be told. The reap's
steps are spans now, with what it removed on the reap span; an episode
list's query, sanitising, DeadAir and count are steps; and DeadAir's work
on a file is a trace of its own (probe, silencedetect, frame_bytes,
store_plans), only for files it looks at, not the idle passes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The save button fetched the original while the player played it shortened.
/media/{id}/deadair sends the original's ID3 tag and then the pieces of the
person's plan one after another, read as it goes: MP3 and ADTS frames each
stand alone, so that is a file any player takes, and nothing is stored, as
with the playlist. The tag stops at the first kept frame, since what can
follow it, the Xing frame, gives the original's length.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
DeadAir made a shortened copy of each episode with ffmpeg: as much disk
again as the original, one pause length for everyone, and a minutes-long
wait after the download. Seeking past silences instead was tried on an
iPhone and left about 1.3 s of nothing at every cut (#178).
Now it finds a file's silences once (silencedetect, plus ffprobe for
each frame's byte position) and stores a plan for each pause a person
can choose, 0.2 to 0.5 s: the cuts, and the frames kept as byte ranges
of the original. /media/{id}/deadair.m3u8 hands this person's plan out
as an HLS playlist of ranges of /media/{id}/deadair.mp3, the original.
Tested on iOS Safari first (#180): no gap at the cuts, plays locked,
seeks exactly, and needs no ID3 timestamp in front of each piece.
Other browsers get hls.js (1.6.19, the light build), loaded only when
needed. Not where canPlayType says it can play HLS: Chromium answers
"maybe" and then fails on MP3 ranges with "stream parsing failed", so
only Apple's browsers play the playlist themselves.
The pause is per person and per show, on deadair_prefs.pause_ms, 0.3 s
unless chosen; 0.2 s, what the copies left, made speech sound rushed.
AAC in MP4 has no ranges a playlist can use, so only MP3 and ADTS AAC
are shortened (the library is 803 MP3s and no .m4a). The copies, their
table and #179's expiry go: the first start drops the table and deletes
the files it names, only those named name.deadair.*.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A copy is nearly the size of its original and was kept as long as the
original. Now `deadair.played_at` notes when one was last served (at
most once an hour, since a player asks again at every seek), and each
pass of the maker removes copies unplayed, or unmade, for 7 days. Only
the file goes: the row keeps its cuts with its path cleared, which
tells an expired copy apart from a file that cannot have one (no cuts)
and keeps the background queue from making it again straight away.
Serving the original of such an episode deletes the row, which puts it
back on the queue; the copy then comes back within a pass, though the
page does not switch to it mid-play (#178).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A new download in a show with DeadAir on plays at full length until its
copy is made, and nothing said so. Each file now carries
deadair_pending while DeadAir is on for its show and the copy is still
to come (not for one heard through, which it passes over), and the
episode's line and details say "Cutting dead air…". The maker sends a
deadair_done event when it finishes a file, and the page takes the list
again, so the line becomes how much shorter the episode is without a
reload.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Production's ffmpeg, Debian's 5.1, refused the copy of Brad & Will's
359: "Error initializing bitstream filter: bsf_list". The frames to drop
went to it as between(...)+between(...)+..., which nests a level a term,
and 5.1 takes 100 terms and refuses 200; the 6.1 the tests ran on took
all 520. Summed as a balanced tree the same 520 nest about 10 deep, and
5.1 takes 4000 that way, checked in the production container.
The failure was also stored as the file having no copy, so nothing would
have tried it again after this fix. Failures are now remembered until
the next start instead. The cap on cuts drops to 3500, so the argument
stays under Linux's 128 KiB with frame numbers in the millions.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The copy maker skips an episode everyone who would hear the copy has
finished, and took finished to be the read mark. Opening an item sets it
as well, so 359: Potatoes From the Sky, opened and downloaded with
DeadAir on for its show, got no copy. Finished is now a place at 90% of
the length or past it, as Currently Listening has it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A DeadAir switch in each show's settings, and the same switch beside
the speed for the show that is playing, drawn as a waveform with its gap
closed up, outlined when off and solid when on, with aria-pressed. A
file the server gives a copy for plays from /media/{id}/deadair. An
episode's line says how much shorter it is, and Settings says how much
DeadAir has saved you.
Turning it on or off mid-episode saves the place with a request it waits
for, not a beacon, then asks for the entry again from the new
GET /api/entries/{feed}/{guid}, whose position is in the clock of the
version it now plays, and carries on there. A copy not made yet plays
from the next time. Turning a show on wakes the copy maker, so the copy
is there in seconds rather than at its next pass.
The browser test plays a real MP3 with long silences, quiet.mp3, from a
show it adds and removes itself.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
There was one switch for everything, with a feed kept out by hand; any
feed already subscribed would have been in it the moment the switch was
turned on. Now each feed, or the group it came in, is turned on by
itself, and a feed of a group turned on can still be kept out. The
general switch and /api/me's deadair are gone; /api/me keeps
deadair_saved.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
For anyone who turns DeadAir on, a background task makes each episode a
copy with every silence quieter than -38 dB for over 0.35 s shortened to
0.2 s. Nothing is re-encoded: ffmpeg copies the original's frames and
leaves the silent ones out, about 11 s for an hour of MP3 in a release
build. On Brad & Will's episode 359 that is 520 cuts and 3.3 minutes
saved, the copy decodes clean, and it has no isolated spikes in its
silences that the original lacks.
Cuts are made from the middle of each silence, keeping 0.1 s at each
end, so the frames either side of a cut are silent: decoding blends a
frame with the one before it, and an MP3 frame can begin in the bytes of
the frame before, so the first frame after a cut decodes against the
wrong neighbour. Inside a silence nobody hears that; at a word they would.
Positions stay in the original's time and the server converts them both
ways. The iOS and Android apps save positions themselves from their own
player, even while the page is asleep, so converting in the page would
have stored the copy's times as the original's. /media/{id}/deadair
serves the copy at its own address and records that this person is
playing it; a position saved meanwhile is converted from the copy's
clock, as is the length a player measures.
The copy is made by a task of its own, not the worker: a first pass over
a library is hours of ffmpeg, and scans must not wait behind it. It
checks every two minutes, which covers new downloads, files already
downloaded, a switch turned on and a file downloaded again with one rule.
Episodes everyone who would hear the copy has finished get none.
download::remove deletes a copy with its original, and the quota counts
copies.
Settings: the switch is PATCH /api/me {deadair}, a feed kept out is
PATCH /api/feeds/{id} {deadair: false}. GET /api/me gives the switch and
deadair_saved, the seconds saved on episodes heard 75% or more on a copy,
each counted once. Three new tables, so no ALTER.
The image gains Debian's ffmpeg, about 480 MB, in a layer that stays
cached until the base image changes. The player's switch, the feed
setting and the stat come next, after mockups.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
axum 0.7 set TCP_NODELAY on every accepted connection; 0.8 stopped, and serve
never set it, so each response sent in parts held its last small segment
until the browser's delayed ACK came back. On production's light traffic
nothing showed: small responses go out in one write. Under load it did.
tests/load, Nagle on then off: media range requests median 41.8 ms to
10.3 ms, p95 44.4 to 13.2, throughput 39 to 149 MB/s. Browse and sign-in
unchanged within noise; flag saves vary 80-195 ms either way, behind the
scan's writes, not the network.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Five Glass Cannon Network feeds name Patreon covers of about 7 MB, over the
5 MB limit on /api/art. Each page load fetched them all again, refused them,
and logged a 502 per cover, about 84 a day, with nothing in the log to say
which image or why: the reason went only to the browser. The limit is now
20 MB, a failure is answered from memory for an hour, and the fetch failure
is logged with its address and reason.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The feed settings dialog says 0 means every episode, the whole back catalogue, and as the server's
default it does. But merge_policy's cap() made only the server-wide 0 unlimited: a 0 set on a feed,
or on one person's subscription, became a budget of 0, hold_back held every file, and nothing
downloaded. Now 0 is unlimited at every level, as the dialog has always said.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Counting a person's files through enclosures_entry, once the count was of their own feeds only, read
every file row of their 146 feeds to find the few with a file: 58 ms of a feed list, more than the
37-50 ms the count over every row of the table had taken. Production holds 15 files among many
thousand rows. A partial index on the rows with a path holds just those, and serves the healthcheck's
count and the Downloaded filter too.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The traces #164 added showed feed_list as nearly all of GET /api/feeds, and in it the item count at
184-316 ms, about 70% of the request: it counted every item of every feed in the database, 1534
feeds, for someone reading 146, on every feed list and every live update of one. The file count did
the same over every file row, 37-50 ms.
Both now join the person's subscriptions, as the unread count already did, and so read only their
feeds' rows, through the entries key and the enclosures_entry index, both on feed_id first. The
Directory also reads feed_list, for every feed's title and artwork, and uses no count; a feed the
person does not read is still listed, with none.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
GET /api/feeds took 250-300 ms in production with nothing under it in its trace but feed_summary
spans of a millisecond, so there was no telling where the time went. feed_rows now wraps the
catalogue, the person's subscriptions, the subscriber counts, the pins and feed_list in a step
span each, and feed_list each of its five queries.
db::step makes a span only inside one already: the healthcheck's status every 30 s and the page's
live updates run the same code outside any trace, where each span would be a trace of its own, as
feed_summary's already are.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
patch_feed asked whether you subscribe, then asked again for the subscription, with a fallback for
none that could never run, since it only got there when there was one. One if-let does both.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
POST /api/enclosures/{id}/download and DELETE /api/enclosures/{id} raised a missing row with
anyhow!, which ApiError makes a 500 and logs as an api error. A page left open after a feed was
forgotten asks for exactly that: the caller's mistake, a 404 like /media/{id} already answers, and
as a 500 it turned up as a server error in the production check.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
`ipx add` and the page's Add feed were the same steps written twice: find the feed, look for it in
the catalogue by same_feed, add_one, store. They had drifted, and #153's lock had to be put into
both by hand. add_to_catalogue() now does the shared part, under the lock, and answers the id and
whether the feed was there already; each caller still finds the feed itself, so the page can call a
bad address the caller's mistake (400), and then does its own part: the CLI lists or categorises,
the page subscribes and scans. add_one is private to it now.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A feed's Directory page and subscribing from it checked the feed may be listed by building the whole
Directory, every feed's listing, every file row for Podcasts and Blogs, every subscription, and
looking for the id in it: 0.57 s for a feed's page in production, nearly all of it that.
The rule (not an OPML or creator itself, neither the feed nor its group private) is now listable(),
which the Directory filters by and the two ask of the catalogue directly. One rule, so the
Directory and the check cannot drift apart; a test covers it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
subscriptions() names each feed derived from an OPML or a Patreon creator after its group when the
group has no folder, and asked feed_summary, three queries, for the group's title once for every
feed in it: the same title each time. Production's 32 Glass Cannon Network shows made that about 96
queries each time it ran, which is every feed list, every live update the page receives, every scan
and every wait between scans. It now asks once a group per call.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A torrent of several files is recorded as its folder. /media could not serve a folder, and the
reaper's remove_file failed on it, warned "could not delete" on every pass and freed nothing, so it
counted against the quota for good; Delete in the page failed the same way.
download::remove deletes a file or a whole folder, for the reaper and Delete alike, and the reaper
counts a folder by its recorded size, as a directory's own size is not its contents'.
download::playable answers the path itself, or for a folder the largest file in it, which is the
episode, and /media serves that.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Removing an account deleted the user, and the foreign keys took their subscriptions with them, but
nothing did what unsubscribing does next: a feed nobody subscribes to any more leaves the catalogue
(or stays, if listed, for the Directory). A feed only that person read stayed with no subscribers,
and a feed with none downloads by its own settings, so it went on fetching each new episode, daily,
for no one, until it had been quiet for a year.
remove_feed's body is now leave(), and remove_user() leaves each of the person's feeds with it before
deleting the account, from the page and from `ipx user rm` alike; a feed inside a group of theirs
goes with the group. `ipx user rm` now tells a running daemon to reload, as add and rm do (#120),
since it can change the catalogue.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The reaper counted read marks and pins in entry_state from anyone and compared them with the feed's
subscribers. Unsubscribing leaves your rows behind, and the flags endpoint writes them for feeds you
do not subscribe to as well. So an episode read by someone who had left and by one subscriber of
two counted as heard by everyone, and went first under the quota though the other had not played
it; and a pin of a person who had left kept a file, and its item, for good, which can leave the
quota impossible to meet.
Both queries, the reaper's candidates and prune_entries, now count only the marks of people who
subscribe to the item's feed. The old prune test's pin had no subscriber behind it; it has one now.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
An enclosure advertised as audio whose body is a .torrent was handed to torrent_one from inside
fetch_one, which returned without mark_downloaded, and in a scan nothing else recorded it. It
stayed pending: the page never showed it downloaded, and every scan of its feed fetched the
.torrent again and ran the torrent again, on the worker, for up to the stall limit and then the
seeding time (30 and 60 minutes in production), with no other feed checked meanwhile.
It now goes the way an advertised torrent does: in the daemon, marked downloading and handed to
spawn_torrent, which records it when it finishes; in a one-off CLI run, run there and recorded.
fetch_one answers None for the first, which a scan counts as a torrent.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The worker's queue held 64 commands, and a web request that queues work waits inside itself for a
free place. Download latest lets you ask for up to 100 and sends one command a file, so past 64
the request waited for the worker to finish whole downloads, one after another, an hour for 100;
Cloudflare gave up on it after 100 s and the page said it failed, though most were queued. Until
it finished, adding a feed, Refresh, Download and socket commands all waited for a place too. A
command is a few bytes; the queue now has room for any one request's.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Each change to the catalogue or the server settings stored the whole thing from a copy it took
earlier, and nothing kept two from overlapping. Adding a feed copied it first and then spent up to
a minute finding and reading the feed, so another person's new feed, an unsubscribe, an admin's
settings, or the scan's own changes (a moved feed's address, a category) made in that minute were
stored over when it finished, with no error. A feed dropped that way left its subscriber's list.
Every change now takes its copy through Ctx::edit_cfg, which holds a lock until store_cfg keeps it,
and store_cfg takes nothing else, so no writer can skip it. Adding a feed takes its copy once it
has found the feed, and before the duplicate check, so two people adding one feed add it once.
reload takes the lock too. `ipx add`, `rm` and `import`, in a process of their own, are outside it,
as the comment on the lock says.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The download client had a connect timeout and nothing else, so that a long download is never cut
off (#108). But nothing bounded a read either: a server that stops sending partway without closing
the connection left the download waiting for good, on the one worker, with every scan and download
behind it, while the healthcheck, which the socket answers itself, went on reading healthy. A read
timeout fires only when no bytes arrive, so a long download is untouched.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
205 of the Directory's 208 feeds without a category had never been read: on 2026-10-05 at 03:24
UTC every one failed with "dns error: ... Temporary failure in name resolution" within a minute,
during an outage on Tower that also stopped iPX's log reaching Loki until Tower rebooted at 11:56.
They are working podcasts, NPR's, Megaphone's, Acast's, which resolve now. A feed nobody
subscribes to is read once a day and a failing one backs off up to a day (#99), so each sat
failing, unread and so uncategorised (#117) until the next day, and explain_failure called every
DNS error "This address no longer resolves; the site is gone.", on its page and since #142 on its
Directory page. A forced check of the 208 read 205; each has its items, its description and its
own category now.
A temporary lookup failure, EAI_AGAIN, is not recorded on the feed at all: no last_error, no
error_since to back off from or call it gone by. The daemon notes it in Ctx::retry and the feed
is due again in ten minutes, which the scan's due check and the sleep until the next scan both
honour; a restart forgets it, which only makes the retry sooner. A name that does not exist is
still the feed's error, explained as "may be gone", and the Directory page, like the feed's own,
names a cause only once a feed has been failing a day; before that its last check failed.
The page also drops "Nobody here subscribes yet", which said nothing worth a line.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
daily-quests, one subscriber and no items, showed "Nothing read from it yet. A feed nobody here
subscribes to is checked once a day." on its page in the Directory: the second sentence was
written whatever the count, and the feed had been failing since #119 said so, which the page
never showed, /api/directory/{id} sending no error.
It sends `failing` now, the reason a feed's own page gives (explain_failure), or that the last
check failed, never the error itself, which can name the feed's address, and the Directory names
none. The page shows it under the header in the error colour, and says a feed is checked once a
day only when nobody subscribes and nothing is wrong.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
"APPOFENIACS - A Technology Movie about Human Behavior" in Ain't It Cool News showed 66,170
characters: the feed's own HTTP headers and then the whole feed, tags stripped, and every other
item of the feed carried the text of the one before it. The publisher's feed had served it that
way, as only its XML could make a shift like that, and has since been fixed; ipx had read the
fixed feed and kept the broken text. Since 57ab419 (#96) a scan called record_entry only for a
guid it had not stored, so its UPDATE of title, description, image and duration was never
reached, and no correction, retitled episode or fixed length arrived.
Db::changed_items reads back what is stored for the items the feed lists, not the archive, and
names those it now gives a different title, text, artwork, length or number, a field it leaves
out counting as unchanged; the scan writes those again too. A corrected item keeps its read
state. A test serves a feed broken and then fixed from a socket of its own.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
SeaORM gives a SQLite pool one connection unless told otherwise, and connect() did not say, so
every request, every scan write and every read went through it in turn. Twenty-five people
browsing in the load tests (#133) got 50 requests a second out of 12 cores, the fastest answers
in 3-30ms and the medians ten times that.
SQLite now gets eight. In WAL readers run beside the one writer. Every transaction here writes
first, so it takes the write lock or waits out the busy timeout for it; SQLite refuses at once
only a transaction holding a snapshot a write has moved past, and none here does. Db::memory
switches its file to WAL too, as Db::open does, so the tests share it as the daemon does. A test
holds a write open and reads beside it, and fails with one connection.
The same browsing: a feed's items at p95 10ms where it was 133, a search 22 where 119, the feed
list 89 where 242. The load tests' SQLite budgets are tightened to match; the Rust tests take
2.8s where they took 7.5.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
`docker exec iPX ipx rm make` printed "removed make" and took it out of the catalogue table, but
the web UI went on listing it. add, rm and import run in a process of their own and write the
whole catalogue there; the daemon kept its own copy in memory, and its next change of its own --
an admin's edit, a feed categorised (#117), a moved feed followed (#115) -- wrote the removed
feed back and dropped any the command line had added.
A new socket command, reload, has the daemon read the catalogue and settings again from the
database. The socket answers it at once, as it answers status, with the counts after it: queued
behind a scan, the web UI could write the old copy back in the meantime. add, rm and import send
it when a daemon is live, and say so if it does not answer. User commands need nothing: the
daemon reads accounts from the database on every request.
A browser test runs the real `ipx add --list` and `ipx rm` against the test daemon, with an
admin's edit after each, and fails without this.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
daily-quests and hots-dots had 0 items and no error, so their subscribers saw shows that had not
posted yet rather than feeds that are gone. Both domains have lapsed, and this network's DNS
filter answers for a parked domain with its block page, over http a 200 with an empty body.
scan_one took a body of nothing but whitespace for "nothing yet" and recorded no error.
It still does for a feed that has stored items, which is what the Antarctic Survey's empty 202
means, but a feed that has never stored one now fails with "the feed's address answered with
nothing at all", which the feed's page explains as an address that answers with nothing, the
site maybe gone. The next real read clears it. A test serves both from a socket of its own.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Running the load tests on Postgres (#139) found a scan reading 1.2 feeds a second: after ten
minutes the first of 1,500 had reached 1,136, where SQLite does them in 27s since #135. On the
databases project's server, production's, 200 single-row inserts took 2,565ms as commits of their
own, 12.8ms each waiting for the WAL to reach the disk (synchronous_commit=on), 56ms with
synchronous_commit=off, and 67ms in one transaction. A feed's entries and enclosures are written
a row at a time, about fifty commits for 20 new items, and production's scans paid the same.
ipx's own sessions now set synchronous_commit=off, through sqlx's connect options, so it holds
on top of whatever options a URL sets, the tests' search_path included. A crash of the Postgres
server can lose the last commits, about the last 0.6s, and never corrupts anything; a crash of ipx
loses nothing; other databases on the server keep their setting. The same first scan takes 20s,
and the Rust tests on Postgres 3.3s instead of 7.1s. The test of SQLite's setting checks this one
too when it runs on Postgres.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The load tests (#133) sent forty clients' wrong passwords to /api/login, 54 attempts a second,
which takes no account. Everyone else's requests took 4s (median 3.96s for /api/feeds, about 20ms
otherwise) and `ipx status`, the healthcheck, 1.3s (#137): each attempt was an Argon2id check,
tens of milliseconds of CPU, run inside the handler on one of the runtime's workers, so a handful
at once held every worker the rest of the server answers on. And a wrong password for an
account's name was refused a median 31ms later than one for a made-up name (#138), since only a
name with a hash was checked: the answer read the same, the time said which names are accounts.
auth::check_password runs the check on the blocking pool, at most half the cores at once, so a
flood waits on itself, and checks a name with no account, or no password, against a fixed decoy
hash, false in the same time. Under the same flood the rest of the site answers at p95 57ms,
`ipx status` at most 90ms, the gap is 0.2ms, and twice as many attempts are answered.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The load tests (#133) found a daemon on SQLite scanning 1.3s a feed of 20 items served from the
same machine: 1,500 feeds would have taken about 50 minutes. On Tower's /tmp, a loop device, one
synchronous 4 KB write takes 52ms, and SQLite was in WAL mode with its default synchronous=FULL,
which waits for the disk on every commit; nearly every statement is a commit of its own, a
feed's entries and enclosures being written a row at a time. Subscribing the first admin to an
imported catalogue of 1,500 feeds took 39s, before the web server listened.
Every SQLite connection now sets synchronous=NORMAL, SQLite's own advice for WAL: it syncs at
checkpoints. A crash of ipx loses nothing; a power cut can lose the last transactions, and never
corrupts the file. The same scan takes 27s and the same subscribing 0.75s. Postgres, which
production runs on, is unaffected.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A feed's page in the Directory (#128) had its cover, category and latest items, but not the
feed's own description, which Apple's show page leads with: iPX read every item's description
and threw the channel's away, and the feeds table had nowhere to keep it.
It is parsed now, RSS's <description>, or iTunes' summary when that is empty, or Atom's
subtitle, kept in feeds.description (kept when a later read has none, as title and image are),
and sent, sanitized, with the items from /api/directory/{id}, which is now an object, not a
list. The page shows it as plain text under the header, three lines of it, with More when there
is more. A description that only repeats the title is left out.
feeds.description is the first column added to a table that already exists. create_missing
looks for it with a SELECT and runs the ALTER only when it is missing, since it runs on every
open, the healthcheck's included, and an ALTER's lock is what made that time out before. The
same once-only step forgets every feed's ETag and Last-Modified: a feed is read whole only when
it has changed, so its description would otherwise wait for its next item.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
