From c9c7807bf0f068474ce5c853244bcb392bdfcce3 Mon Sep 17 00:00:00 2001 From: tv Date: Sun, 8 Nov 2026 19:16:10 +0000 Subject: roots: an epoch's root pinned, and named in every handshake Review 2, N7, the care it raised: a joining node's empty document took as the first epoch's root whatever dependency-less change came first, from whichever peer it joined through; the first epoch's ID is all zeros, so nothing pinned it. A remake's epoch has its ID, the snapshot change's hash, which the rules hold its root to. * Every node names its epoch's root in HELLO and HELLO_REPLY (the epoch's ID for a remake's, its genesis change for the first; wire version 45). A node whose document starts from another root of the same epoch refuses the handshake, logging it: another history under the swarm's ID, a forged root or a genesis started again. * A joining node with an empty document takes as its root only the one it was given (--genesis-root, new), else the one its peers name, and none while they name different ones (access::screen::RootPin, kept in Screening across documents): one peer hands it another root only if it is all the joiner hears, or never, with --genesis-root. A root refused is listed with the refused, what builds on it with it. * The genesis node logs the root (`The swarm's root`); GET /admin/epochs shows it (`root`). A genesis started again under a remembered swarm ID used to merge with the nodes of it still running; they now refuse it (another root), and the docs say to join them with seeds instead. The epoch's identity stays as it is (generation 0 all zeros): records and epoch metadata name it so, and every comparison of epochs with them. --- docs/lifecycle.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'docs/lifecycle.md') diff --git a/docs/lifecycle.md b/docs/lifecycle.md index 9fe9442..829e425 100644 --- a/docs/lifecycle.md +++ b/docs/lifecycle.md @@ -62,7 +62,7 @@ Then the node is either ready at once or joining: | Start | Without a remembered swarm | With one (state file) | |---|---|---| -| `--genesis` | a new swarm, ready at once | that swarm again, empty; nodes of it still running merge with this one | +| `--genesis` | a new swarm, ready at once | that swarm again, empty, from a new root, which nodes of it still running refuse (to join them, give seeds) | | document file holding a document | ready at once, on the document's swarm and epoch | the same; the two must name the same swarm | | `--recover-from` | ready at once, on the backup's swarm and epoch | the same; the two must name the same swarm | | seeds, or none | joining through the seeds | joining that swarm, through the seeds and the remembered members | -- cgit v1.3.1