Jordan Hrycaj 7688148565
Snap sync can start on saved checkpoint (#1327)
* Stop negotiating pivot if peer repeatedly replies w/usesless answers

why:
  There is some fringe condition where a peer replies with legit but
  useless empty headers repetely. This goes on until somebody stops.
  We stop now.

* Rename `missingNodes` => `sickSubTries`

why:
  These (probably missing) nodes represent in reality fully or partially
  missing sub-tries. The top nodes may even exist, e.g. as a shallow
  sub-trie.

also:
  Keep track of account healing on/of by bool variable `accountsHealing`
  controlled in `pivot_helper.execSnapSyncAction()`

* Add `nimbus` option argument `snapCtx` for starting snap recovery (if any)

also:
+ Trigger the recovery (or similar) process from inside the global peer
  worker initialisation `worker.setup()` and not by the `snap.start()`
  function.
+ Have `runPool()` returned a `bool` code to indicate early stop to
  scheduler.

* Can import partial snap sync checkpoint at start

details:
 + Modified what is stored with the checkpoint in `snapdb_pivot.nim`
 + Will be loaded within `runDaemon()` if activated

* Forgot to import total coverage range

why:
  Only the top (or latest) pivot needs coverage but the total coverage
  is the list of all ranges for all pivots -- simply forgotten.
2022-11-25 14:56:42 +00:00

78 lines
2.1 KiB
Nim

# Nimbus
# Copyright (c) 2021 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed
# except according to those terms.
import
eth/[common, p2p],
chronicles,
chronos,
stew/[interval_set, sorted_set],
"."/[full/worker, sync_desc, sync_sched, protocol]
{.push raises: [Defect].}
logScope:
topics = "full-sync"
type
FullSyncRef* = RunnerSyncRef[CtxData,BuddyData]
# ------------------------------------------------------------------------------
# Virtual methods/interface, `mixin` functions
# ------------------------------------------------------------------------------
proc runSetup(ctx: FullCtxRef; ticker: bool): bool =
worker.setup(ctx,ticker)
proc runRelease(ctx: FullCtxRef) =
worker.release(ctx)
proc runDaemon(ctx: FullCtxRef) {.async.} =
discard
proc runStart(buddy: FullBuddyRef): bool =
worker.start(buddy)
proc runStop(buddy: FullBuddyRef) =
worker.stop(buddy)
proc runPool(buddy: FullBuddyRef; last: bool): bool =
worker.runPool(buddy, last)
proc runSingle(buddy: FullBuddyRef) {.async.} =
await worker.runSingle(buddy)
proc runMulti(buddy: FullBuddyRef) {.async.} =
await worker.runMulti(buddy)
# ------------------------------------------------------------------------------
# Public functions
# ------------------------------------------------------------------------------
proc init*(
T: type FullSyncRef;
ethNode: EthereumNode;
chain: Chain;
rng: ref HmacDrbgContext;
maxPeers: int;
enableTicker = false): T =
new result
result.initSync(ethNode, chain, maxPeers, enableTicker)
result.ctx.data.rng = rng
proc start*(ctx: FullSyncRef) =
doAssert ctx.startSync()
proc stop*(ctx: FullSyncRef) =
ctx.stopSync()
# ------------------------------------------------------------------------------
# End
# ------------------------------------------------------------------------------