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* introduce majority voting on remakestv3 days7-95/+406
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* add electoratetv3 days3-8/+109
| | | | | For an upcoming change in remake coordination, nodes now maintain their self-assessed liveness in the document.
* aliases are not in logs (fixup)tv3 days2-2/+2
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* measure document saved-size only after changestv3 days2-18/+43
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* allow import remake using the raw documenttv4 days1-6/+85
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* add the import kind of remaketv4 days3-49/+200
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* add endpoint to export the documenttv4 days3-0/+88
| | | | GET /admin/document to retrieve the automerge document.
* add node aliasestv4 days6-11/+147
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* expose stats for prometheus to scrapetv4 days2-7/+514
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* add throughput statstv4 days8-2/+231
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* add propagation statstv4 days4-1/+126
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* add per peer incident statstv4 days4-4/+52
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* expose stats via the APItv4 days2-0/+136
| | | | GET /admin/stats to retrieve all stats.
* add swarm statstv4 days9-1/+238
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* add traffic countertv4 days9-12/+270
| | | | | | | | | | This introduces a new wrapper that counts messages and payload bytes per peer, split by kind (hello, helloReply, sync, ping, pong), each sent, received and refused. The traffic counter goes around the firewall, which means messages dropped outbound are still counted as sent, and messages dropped inbound don't count as received.
* nodes prefer stable neighbourstv4 days1-10/+89
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* assess swarm stabilitytv4 days8-11/+330
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* record RTT sampling instanttv4 days4-30/+104
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* prefer closer sources to catch uptv4 days3-3/+49
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* record RTT from keepalive messagestv4 days7-20/+148
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* pull missing changestv4 days7-5/+162
| | | | | | Nodes push changes to their neighbours but don't relay them directly. In a partial mesh, nodes can learn about missing changes via keepalive messages and can pull them from their neighbours.
* find reachable neighbourstv4 days3-55/+162
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* sync with neighbourstv4 days6-4/+171
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* add neighbour graphtv4 days2-0/+180
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* add member registrytv4 days4-1/+73
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* use nonce in handshaketv4 days5-2/+39
| | | | | To prevent stale hello replies to cause joins and thus stale sessions, each run gets a random ID, which used as nonce in the handshake.
* drain queued messages on startuptv4 days1-2/+48
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* consolidate backoff codetv4 days4-49/+99
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* retry using fresh messagestv4 days3-170/+180
| | | | | Don't store encoded messages but retry using a newly generated one. That way any accumulated changes can be delivered at once.
* heal from noticed divergencetv4 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 timeouttv4 days1-0/+3
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* drop stall breaker; resend needed changestv4 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-uptv4 days1-1/+6
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* peers that just became ready get syncstv4 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 resettv4 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 triptv4 days6-85/+74
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* drop pre-membership sync messagestv4 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 messagestv4 days6-11/+1069
| | | | | 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-uptv4 days4-109/+28
| | | | This allows changing sources without the fixed 30 s stall duration.
* enrich keepalive contenttv4 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 sourcetv4 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 onlytv4 days3-1/+102
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* introduce announce opening varianttv4 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 sessiontv4 days3-12/+74
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* merge sync_reset_at and epoch_unannounced into openingtv4 days3-56/+67
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* introduce sync sessiontv4 days4-109/+124
| | | | SyncSession holds all fields that get reset by reset_sync()
* merge membership and authenticate into standingtv4 days5-43/+47
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* announce epochs by sync instead of pingtv4 days2-4/+33
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* pick pair leader by hash instead of key ordertv4 days5-4/+83
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* ping only from one sidetv4 days2-3/+22
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