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* heal from noticed divergencetv5 days1-6/+27
| | | | | Wait 2*keepalive but at least 20 s to trigger resync so that lost messages can be resent first.
* heal after reply timeouttv5 days1-0/+3
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* drop stall breaker; resend needed changestv5 days2-82/+21
| | | | | | The stall breaker was superseded by regular re-handshaking Re-handshaking also gets triggered, when a node needs some of the heads its peer believes it has already sent. In that case the peer now resends what's needed.
* no heal during catch-uptv5 days1-1/+6
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* peers that just became ready get syncstv5 days1-0/+9
| | | | | | When keepalive says ready and we didn't have taht on record before, the peer is queued for sync. Hello and hello reply don't do this because the handshake already queues a sync.
* both sides may open sync after resettv5 days6-163/+64
| | | | | | | | | | Ready nodes will leave the first message to the pear that isn't ready. Hello and hello reply now carry ready, so readiness is known from the very first contact, before any sync. Together with the sync messages and keepalives, reports_ready is always current. After epoch switch, pings go to everyone except ready members already on the new epoch, these learn from the lagging peer's opening.
* perform handshake in one round triptv5 days6-85/+74
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* drop pre-membership sync messagestv5 days4-47/+10
| | | | | The handshake resets the session anyway, and the sender's reply timeout resends what still matters.
* bump number of heads in keepalive messagestv5 days5-11/+94
| | | | | Instead of arbitrarily limiting the number to 16, allow filling keepalive messages as long as they don't cause mycelium to chunk it.
* probe sync source during catch-uptv5 days4-109/+28
| | | | This allows changing sources without the fixed 30 s stall duration.
* enrich keepalive contenttv5 days5-44/+307
| | | | | | | Add ready and syncs_with_you flags as well as actual heads, so the peer - ready: same meaning as in the sync message - syncs_with_you: sender counts recipient as member and in same epoch - heads: allows to tell who's behind or if both sides have changes
* use only ready peers as sync sourcetv5 days4-11/+65
| | | | | | Sync messages now carries a ready flag, telling whether the sending peer itself is joined or is itself still (re-)joining. In the latter case, the peer won't be used as sync source.
* catch up with a single source onlytv5 days3-1/+102
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* introduce announce opening varianttv5 days1-6/+14
| | | | | This prevents a fall back to the 3 s grace period if a reset happens between the epoch switch and our opening went out.
* record the cause that started a sync sessiontv5 days3-12/+74
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* merge sync_reset_at and epoch_unannounced into openingtv5 days3-56/+67
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* introduce sync sessiontv5 days4-109/+124
| | | | SyncSession holds all fields that get reset by reset_sync()
* merge membership and authenticate into standingtv5 days5-43/+47
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* announce epochs by sync instead of pingtv5 days2-4/+33
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* pick pair leader by hash instead of key ordertv5 days5-4/+83
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* ping only from one sidetv5 days2-3/+22
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* allow changing log filtering while node runstv5 days4-1/+97
| | | | This also changes the default to tracing-subscriber.
* consistently use the words node, peer, and seedtv5 days7-12/+18
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* open sync only from one sidetv6 days2-3/+45
| | | | | | | | | If both sides open, the openings cross, and an empty node's answer to the other opening (empty heads) makes the other side send the whole document a second time. Now after a sync reset, only the side with the smaller public key opens the sync; the other answers it, or opens itself if nothing arrives.
* don't resend sync messages to up-to-date peerstv6 days3-9/+34
| | | | | | | | | | | When an sync messages arrives and automerge has nothing to say about it, then no reply is generated. With c9279e4 it was assumed that every sync message gets an answer, so missing replies caused unnecessary resends. Now a reply is only awaited if the peer's last reported heads differ from ours. If the peer's heads become equal through a third peer without replying, the waiting will also abort if a ping or pong showss the same heads digest on both sides.
* introduce pre-shared swarm keytv6 days7-1/+316
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* rename cluster to swarm everywhere!tv7 days14-177/+162
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* make remake switch delay configurabletv7 days3-2/+44
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* install signal handlers early & handle SIGTERMtv7 days2-17/+58
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* handle SIGTERMtv7 days1-0/+11
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* let linux signal supervised mycelium when we dietv7 days1-8/+22
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* resend sync messages that haven't been repliedtv7 days3-6/+90
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* add the replace kind of remaketv8 days4-4/+256
| | | | | | | | | | | | | | POST /admin/remakes accepts specs with replace kind, e.g.: { "kind": "replace", "baseHeads": ["..."], "spec": { "document": { "accounts": { ... } }, "rules": [ { "from": "users", "to": "accounts" }, { "from": "users/admin", "drop": true }, { "from": "", "to": "" } ] } }
* allow choosing the base in remakestv8 days2-5/+54
| | | | | | | | | POST /admin/remakes accepts "baseHeads": ["<hex>", ...], for example the heads of an earlier GET /store?heads=true. Every head must be in the coordinating node's document, otherwise the request gets a 400. Without it, the base is the current heads. This works for any kind.
* add heads to readstv8 days2-9/+67
| | | | | | | | | | GET /store?heads=true and GET /store/{key}?heads=true add the header x-continuum-heads (sorted, comma-separated hex). The heads come from the same moment as the read. - It's opt-in because reading the heads takes the write lock. Reads without the flag don't change. - Stale reads during a rejoin never carry heads.
* turn compaction into a kind of remaketv8 days9-72/+589
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* add store::copy_path_to(src, from, dst, to)tv8 days1-4/+14
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* rename compaction to remaketv8 days16-175/+179
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* reorganize all the modulestv8 days27-44/+55
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* serve stale reads during rejointv9 days5-14/+118
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* bootstrap: mark node ready only after epoch checktv9 days1-1/+3
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* take_keepalive_due: consider added_attv9 days1-0/+1
| | | | This prevents an immediate ping during handshake.
* cleanup loggingtv9 days5-56/+69
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* replace snapshots by quarantine & replaytv9 days13-600/+789
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* fix catch-up / compaction in generaltv9 days5-20/+51
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* fix catch-uptv9 days7-94/+427
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* add epoch catch-up / snapshotstv9 days13-34/+831
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* add force param to POST /admin/compactiontv9 days1-5/+21
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* fix compactiontv9 days2-26/+97
| | | | | - introduce DELETE /admin/compaction to abort local compaction proposal - continue coordination if a POST /admin/compaction?wait=true terminates
* add epoch switchtv9 days13-12/+1813
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