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* use nonce in handshaketv22 hours5-2/+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 startuptv22 hours1-2/+48
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* consolidate backoff codetv22 hours4-49/+99
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* retry using fresh messagestv23 hours3-170/+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 divergencetv23 hours1-6/+27
| | | | | Wait 2*keepalive but at least 20 s to trigger resync so that lost messages can be resent first.
* heal after reply timeouttv25 hours1-0/+3
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* drop stall breaker; resend needed changestv25 hours2-82/+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| | | | | | The stall breaker was superseded by regular re-handshaking Re-handshaking also gets triggered, when a node needs some of the heads its peer believes it has already sent.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-uptv26 hours1-1/+6
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* peers that just became ready get syncstv26 hours1-0/+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 resettv26 hours6-163/+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 triptv27 hours6-85/+74
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* drop pre-membership sync messagestv27 hours4-47/+10
| | | | | The handshake resets the session anyway, and the sender's reply timeout resends what still matters.
* bump number of heads in keepalive messagestv27 hours6-11/+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-uptv27 hours4-109/+28
| | | | This allows changing sources without the fixed 30 s stall duration.
* enrich keepalive contenttv27 hours5-44/+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 sourcetv28 hours4-11/+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 onlytv28 hours3-1/+102
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* introduce announce opening varianttv29 hours1-6/+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 sessiontv29 hours3-12/+74
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* merge sync_reset_at and epoch_unannounced into openingtv29 hours3-56/+67
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* introduce sync sessiontv30 hours4-109/+124
| | | | SyncSession holds all fields that get reset by reset_sync()
* merge membership and authenticate into standingtv30 hours5-43/+47
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* announce epochs by sync instead of pingtv31 hours2-4/+33
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* pick pair leader by hash instead of key ordertv36 hours5-4/+83
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* ping only from one sidetv36 hours2-3/+22
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* allow changing log filtering while node runstv38 hours4-1/+97
| | | | This also changes the default to tracing-subscriber.
* consistently use the words node, peer, and seedtv38 hours7-12/+18
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* open sync only from one sidetv43 hours2-3/+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 peerstv2 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 keytv2 days7-1/+316
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* rename cluster to swarm everywhere!tv3 days14-177/+162
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* make remake switch delay configurabletv3 days3-2/+44
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* install signal handlers early & handle SIGTERMtv3 days2-17/+58
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* handle SIGTERMtv3 days1-0/+11
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* let linux signal supervised mycelium when we dietv3 days1-8/+22
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* resend sync messages that haven't been repliedtv3 days3-6/+90
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* add the replace kind of remaketv4 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 remakestv4 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 readstv4 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 remaketv4 days9-72/+589
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* add store::copy_path_to(src, from, dst, to)tv4 days1-4/+14
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* rename compaction to remaketv4 days16-175/+179
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* reorganize all the modulestv4 days27-44/+55
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* serve stale reads during rejointv5 days5-14/+118
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* bootstrap: mark node ready only after epoch checktv5 days1-1/+3
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* take_keepalive_due: consider added_attv5 days1-0/+1
| | | | This prevents an immediate ping during handshake.
* cleanup loggingtv5 days5-56/+69
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* replace snapshots by quarantine & replaytv5 days13-600/+789
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* fix catch-up / compaction in generaltv5 days5-20/+51
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* fix catch-uptv5 days7-94/+427
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