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Under a strict policy the rules read user data: the value at a signed
place (prev) and what holds one. A batch judged at its frontier missed
a signed write earlier in the same batch, so two successive signed
writes at one path received together were refused on some nodes and
taken on others. A change at, within or above a signed path now goes
in before the next is judged.
Review finding 2.
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The rules read the policy at the change's dependencies only for strict
mode, so history from before the policy was judged by today's rules
when a late node caught up, or when REFUSALS had it judged again. A
change written while the document had no policy, or one this node
doesn't know, is now judged by none.
Review finding 6.
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A node refusing changes a peer brought tells it which broke a rule; the
peer judges them itself, and if its rules refuse them too, drops them
with all built on them (its document forked without them, a fresh
actor), quarantining its own writes among them. Wire version 42.
Auth plan M6 (rejoin on taint).
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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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A refused change is remembered by its hash: offered again it is refused
without decoding, judging or logging, so is one built on it, and a peer
offering nothing else is answered later each time, up to a minute.
Auth plan M6 (re-sending).
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Inspection gives each operation's kind; under strict every node
refuses, at a signed place, anything but an envelope that checks and
replaces the one there (deleting first as replacing does), anything
within one, and above one anything replacing what holds one.
Auth plan M7.
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"signatures": "required": a change counts only once a signature by its
committer vouches for it, and waits until then; every node then signs
every change it makes.
Auth plan M6.
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_continuum/access/policy ({"version": 1}) has every node screen every
change it receives, on every path changes come in. A policy a node
doesn't know stops its writes through the API. GET /admin/refused.
Auth plan M6.
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access::screen: a batch of received changes judged change by change,
those that change what rules read applied before the next is judged;
a refused change stays out with whatever builds on it, kept aside for
operators; changes missing dependencies wait.
Auth plan M6.
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