<feed xmlns='http://www.w3.org/2005/Atom'>
<title>meshbay.git/packages/meshbay-node/tests/test_stream_capacity_config.py, branch v0.9.0</title>
<subtitle>MeshBay — read-only public mirror</subtitle>
<id>https://git.meshbay.org/meshbay.git/atom?h=v0.9.0</id>
<link rel='self' href='https://git.meshbay.org/meshbay.git/atom?h=v0.9.0'/>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/'/>
<updated>2026-08-18T00:15:02Z</updated>
<entry>
<title>feat(node): several named roots per group, and one implementation per operation</title>
<updated>2026-08-18T00:15:02Z</updated>
<author>
<name>Christophe Besson</name>
<email>cbesson@gmail.com</email>
</author>
<published>2026-08-18T00:15:02Z</published>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/commit/?id=e9d5e979fdab9a1cc3c729d602e6f27207b9480c'/>
<id>urn:sha1:e9d5e979fdab9a1cc3c729d602e6f27207b9480c</id>
<content type='text'>
Stage A — a group's content is a set of named roots
---------------------------------------------------
`shared_dir` becomes a list of {name, path, kind}. The name is the directory's
basename, derived once at add time and *stored*: recomputing it would
re-identify a whole library the day someone renames a folder on disk. Duplicate
names are refused case-insensitively and no root may contain another — both
compared with NFC folding, because most of these directories live on exFAT or
NTFS where `Films` and `films` are one directory.

Every index path carries its root name, in a one-root group as much as in a
five-root one. One path shape has to be got right once; two have to be kept
right for ever.

**A root that goes away freezes; it never empties.** Unmounting a volume makes
watchdog report every file under it as deleted, or presents an empty directory
to the next scan. Acting on either propagates deletions for a whole library to
every member, as though the owner had erased it. So a deletion is acted on only
once its root is confirmed readable, and availability is tracked per root — one
unplugged drive leaves the others serving. 12 tests, verified to fail against an
indexer without the check.

Events are not trusted to be complete either: ReadDirectoryChangesW drops them
under load and inotify on a FUSE mount misses changes made outside it. A
periodic reconciliation sweep is the only thing that recovers a missed event.

MNP 0.2 → 0.3 (additive). The hub needs no change: SwarmSource carries a content
hash, a node id and an endpoint — no paths, no filenames — and private groups
register nothing (H7).

Stage B — one implementation behind every front door
----------------------------------------------------
C1 and C6 were both "a second path into the node with its own weaker
handshake". Two implementations of `revoke` with two authorization checks is
that shape one size down. `meshbay_node/ops.py` holds each operation once,
takes the daemon state, and knows nothing about HTTP, argv or MNP. The loopback
API is one `_op(...)` line per endpoint; the MNP handlers call the same
functions. test_ops.py asserts the shape rather than trusting it.

Phase 14 is finished on top of it — `group list`, `gek init|rotate`, `reload`
(SIGHUP), `denylist show|clear`, `file list|rm`. **No operator action requires a
browser any more.** Plus `gek_rotate` and `member_unpin` as operator-signed MNP
operations: rotation is the half of revocation that revocation cannot do, since
the ex-member holds the current key, and the node generates the replacement
with its own CSPRNG — no key material crosses the wire, which is what the C5b
rule is actually about.

Two bugs found by running it rather than by testing it
------------------------------------------------------
GroupIndex is keyed by **content hash**, so the same bytes at two paths are one
entry — which is also why a scan reports ten files and indexes nine.
Reconciliation compared paths, so it decided the second path was a missed event
every 60 s, rewrote the entry and pushed an index update to every connected
peer. Seen in a live node's log.

`meshbay-node reload` crashed on first use with `subprocess` unimported: the
module compiles fine, which is the "syntax, not names" trap already recorded for
the SPA. test_cli_dispatch.py now walks every verb and refuses to let one be
added to the parser without an entry there.

Also corrected: protocol.py declared a second MNP_VERSION of "0.1" while the
wire carried "0.2" — harmless only because nothing imported it. And
_do_dir_create/_do_dir_delete referenced an undefined `filename` on their error
path.

740 tests pass; QE/deploy/e2e.py passes end to end against the live deployment.

Co-Authored-By: Claude Opus 5 &lt;noreply@anthropic.com&gt;
</content>
</entry>
<entry>
<title>feat(node): the stream capacity is the operator's to set, and a log that says who stopped</title>
<updated>2026-08-16T18:58:08Z</updated>
<author>
<name>Christophe Besson</name>
<email>cbesson@gmail.com</email>
</author>
<published>2026-08-16T18:58:08Z</published>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/commit/?id=e012b7e9ce55079f411943c7a1f6ccbfbd629a5f'/>
<id>urn:sha1:e012b7e9ce55079f411943c7a1f6ccbfbd629a5f</id>
<content type='text'>
Bounding the client's read-ahead changed what a transcode slot is. It used to
be a burst — the browser took segments as fast as it could append them, so a
slot came back within the minute whatever the length of the film. Now it is
held for as long as someone is watching, so the cap counts simultaneous
viewers, and two of them meant the third was refused for the next hour and a
half.

The right number depends on the machine, so it belongs to the operator:
`[node] max_concurrent_streams` in node.toml, or
MESHBAY_MAX_CONCURRENT_STREAMS. Default 8 — one ffmpeg per viewer, remuxing
rather than encoding, idle on a pipe for most of the film. Zero, a negative
number, a non-number and a bool are refused with a warning naming the setting:
`Semaphore(0)` is not "no limit", it is a node where no video ever plays and
nothing says why, and TOML `true` would have become 1 by way of `int()`.

A stream also ends on the peer's silence now rather than on its stinginess. A
viewer buffered well ahead deliberately grants nothing for minutes, and the
old budget accumulated over the whole wait, so a keepalive that granted no
credit could not keep a paused film alive.

The rest is diagnosis, which is what this cost. `client_diag` carries the
player's own view — readyState, refused appends, buffered ranges, the video
element's error — into the node's log at DEBUG, next to the node's view of the
same stream. It is the only window into a phone, and every field is
stringified and cut short because all of it is peer-controlled. The node also
logs the first keepalive, which distinguishes a paced client from an unpaced
one at a glance, and progress every hundred segments, whose last line says
where a stream stopped and which side stopped it.
</content>
</entry>
</feed>
