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* refresh peers after stalltv12 days2-1/+19
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* add random swarms testtv12 days1-0/+62
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* add clock moduletv12 days3-6/+11
| | | | | The Clock module is the system clock that every unix timestamp new goes through. It comes with an offset that only tests can set.
* avoid stalled sourcetv12 days1-2/+24
| | | | | | | | | | | | | A source given up for not answering our sync messages could become the source again straight away. Whoever asks first after the reset takes the role, and that's often the same peer, which would then stall for another delivery limit. Now, a stalled source isn't chosen again for one more delivery_limit. If it's the only candidate, catching up waits that long and then tries it again. Before, a retry with that peer couldn't have helped any sooner anyway: a source is only given up after a whole delivery limit without a sync message, and that clock restarts when it is chosen again.
* MYCELIUM_DELIVERY_LIMIT -> Timing::delivery_limittv12 days1-6/+3
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* recompute neighbours whenever topology changestv12 days4-5/+40
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* run peer worker when becoming readytv12 days1-0/+8
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* newly added neighbour get a sync attempttv12 days1-3/+12
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* add simulation testtv12 days1-1/+4
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* require catch-up source to make progresstv12 days2-1/+92
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* late messages don't flip peer's epoch backtv12 days3-12/+56
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* allow to persist documenttv12 days1-22/+145
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* add files module to consistently track statstv12 days3-91/+34
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* warn about unresolvable seeds once; log successtv12 days1-7/+22
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* add disk I/O statstv12 days3-24/+78
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* add possibility to start with a documenttv12 days1-4/+61
| | | | The --recover-from option allows a node start with a given document.
* add state filetv12 days4-2/+222
| | | | | This allows storing the swarm ID and additionally discovered seeds, which prevents a formerly genesis node to start a new document.
* put swarm ID into the documenttv12 days1-3/+19
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* add genesis flag and never give uptv12 days1-65/+87
| | | | | | | | | The --genesis flag has been introduced to start with a new document. This prevents restarts to accidentally start with a new document and accept reads/writes, causing a second swarm to appear. Additionally, bootstrapping doesn't timeout anymore as that's of no use for nobody.
* bound stable-hub degreetv13 days1-4/+46
| | | | | | Each stable member can be preferred at most by 4*k members. The budget is spent in key order, which is the same on every node, so the graph stays deterministic, symmetric and connected.
* coalesce announcementstv13 days1-2/+56
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* cache headstv13 days3-6/+11
| | | | To reduce the number of write locks, heads are now cached.
* being caught up needs some headstv13 days1-5/+9
| | | | | | | | | | | A sync message from a ready peer only completes the initial sync if that peer has at least one head. A peer with an empty document can no longer make a joiner ready on an empty store: a misconfigured second swarm, or a genesis node in its first seconds. Effect on a brand-new swarm: a joiner now waits until the genesis node has registered itself in the member list, which happens within about 5 s of it becoming ready.
* put remake content into blobstv13 days1-4/+21
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* add chunked download and use it during rejointv13 days5-1/+502
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* add electoratetv13 days1-8/+101
| | | | | For an upcoming change in remake coordination, nodes now maintain their self-assessed liveness in the document.
* aliases are not in logs (fixup)tv13 days1-1/+1
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* measure document saved-size only after changestv13 days1-17/+39
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* add endpoint to export the documenttv14 days1-0/+9
| | | | GET /admin/document to retrieve the automerge document.
* add node aliasestv14 days1-11/+78
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* add throughput statstv14 days4-1/+192
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* add propagation statstv14 days2-0/+89
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* add swarm statstv14 days7-1/+235
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* add traffic countertv14 days1-0/+4
| | | | | | | | | | 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 neighbourstv14 days1-10/+89
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* assess swarm stabilitytv14 days4-11/+321
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* record RTT sampling instanttv14 days2-27/+95
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* prefer closer sources to catch uptv14 days1-3/+42
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* record RTT from keepalive messagestv14 days4-14/+130
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* pull missing changestv14 days5-5/+159
| | | | | | 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 neighbourstv14 days2-55/+132
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* sync with neighbourstv14 days3-4/+142
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* add neighbour graphtv14 days2-0/+180
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* add member registrytv14 days3-0/+69
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* use nonce in handshaketv14 days1-2/+14
| | | | | 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.
* consolidate backoff codetv14 days1-29/+15
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* retry using fresh messagestv14 days1-158/+127
| | | | | Don't store encoded messages but retry using a newly generated one. That way any accumulated changes can be delivered at once.
* drop stall breaker; resend needed changestv14 days1-65/+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-uptv14 days1-1/+6
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* peers that just became ready get syncstv14 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.