| Commit message (Collapse) | Author | Age | Files | Lines |
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How many writers (Automerge actors) the document's changes have matters: a writer is a
node's run (each start, rejoin or drop makes one, a start keeping the one of before with
`--keep-actor` after a clean stop), and every transfer of the whole history carries a
signature for each. `/admin/stats` now says it (`document.writers`, and
`document_writers` for Prometheus), counted from the changes' metadata alongside the
saved size's measurement in the background (at least a minute apart), as that takes
time proportional to the document too; an export, which measures the size alone, keeps
the count of before. The dashboard's figures show it with the rest.
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Signatures sent on their own (SIGNATURES, every second, to each peer
not sent them yet) flooded every link: a signature made after its
change left, or one that came with changes, went to every neighbour,
whether or not it got the change along with its signature elsewhere.
With every change of a node signed as it leaves (1217) and signatures
going where their changes go (1218), none is left for them to carry:
the message, its task and its traffic counter go (wire version 46).
Signatures waiting for their changes are offered as before when sync
messages bring them, and the changes waiting for signatures judged
again with the next batch.
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A node told (REFUSALS) that it holds a change the swarm's rules refuse,
and whose own rules refuse it too, dropped it and everything built on
it on one peer's word, however much that was; its own writes among them
went to the quarantine, the others' nowhere.
* A drop taking more than 100 changes, or more than ten and a tenth of
the document, now
waits until a second member names the same change: the node's rules
and one peer's word could both be off. Logged as an error, counted in
/admin/stats (sync.dropsHeld).
* The others' changes dropped are listed with the refused (GET
/admin/refused, "taken unjudged, dropped"), for operators to see.
The cheap half of asking the others (future-work.md, Telling a
malicious change from a wrong policy).
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With signatures required, a member whose own change broke a rule is
refused as a whole: sent nothing, shown in /peers (refused), in stats
(sync.refusedPeers) and on the dashboard, until a change of its is
taken again or the epoch changes.
Auth plan M6 (diverged standing).
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Signatures no sync message took go on their own within a second, to
each peer not sent them yet (wire version bumped).
Auth plan M5.
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The dashboard reads every member's links from the members themselves;
LINKS and LINKS_REPLY, swarm::links and their wire tags go (wire
version bumped). Nodes the browser can't reach are drawn from what the
reachable ones measure.
Auth plan M3.
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Introduce two new wire messages, LINKS and LINKS_REPLY (swarm::links).
A member answers with its links: for each peer, the transport, whether
it’s relayed, the RTT, and whether it’s dormant. It answers members
only, at most every 5 s. This bumps wire::VERSION to 7. Every build
answers, with or without the feature, so every node needs this patch
before the map shows anything beyond its own node.
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