nimbus-eth2/ncli/ncli_db.nim

568 lines
18 KiB
Nim

import
os, stats, strformat, tables,
chronicles, confutils, stew/byteutils, eth/db/kvstore_sqlite3,
../beacon_chain/networking/network_metadata,
../beacon_chain/[beacon_chain_db, extras],
../beacon_chain/consensus_object_pools/blockchain_dag,
../beacon_chain/spec/[beaconstate, crypto, datatypes, digest, helpers,
state_transition, presets, validator],
../beacon_chain/ssz, ../beacon_chain/ssz/sszdump,
../research/simutils, ./e2store
type Timers = enum
tInit = "Initialize DB"
tLoadBlock = "Load block from database"
tLoadState = "Load state from database"
tAdvanceSlot = "Advance slot, non-epoch"
tAdvanceEpoch = "Advance slot, epoch"
tApplyBlock = "Apply block, no slot processing"
tDbLoad = "Database load"
tDbStore = "Database store"
type
DbCmd* = enum
bench
dumpState
dumpBlock
pruneDatabase
rewindState
exportEra
validatorPerf
# TODO:
# This should probably allow specifying a run-time preset
DbConf = object
databaseDir* {.
defaultValue: ""
desc: "Directory where `nbc.sqlite` is stored"
name: "db" }: InputDir
eth2Network* {.
desc: "The Eth2 network preset to use"
name: "network" }: Option[string]
case cmd* {.
command
desc: ""
.}: DbCmd
of bench:
benchSlot* {.
defaultValue: 0
name: "start-slot"
desc: "Starting slot, negative = backwards from head".}: int64
benchSlots* {.
defaultValue: 50000
name: "slots"
desc: "Number of slots to run benchmark for, 0 = all the way to head".}: uint64
storeBlocks* {.
defaultValue: false
desc: "Store each read block back into a separate database".}: bool
storeStates* {.
defaultValue: false
desc: "Store a state each epoch into a separate database".}: bool
printTimes* {.
defaultValue: true
desc: "Print csv of block processing time".}: bool
resetCache* {.
defaultValue: false
desc: "Process each block with a fresh cache".}: bool
of dumpState:
stateRoot* {.
argument
desc: "State roots to save".}: seq[string]
of dumpBlock:
blockRootx* {.
argument
desc: "Block roots to save".}: seq[string]
of pruneDatabase:
dryRun* {.
defaultValue: false
desc: "Don't write to the database copy; only simulate actions; default false".}: bool
keepOldStates* {.
defaultValue: true
desc: "Keep pre-finalization states; default true".}: bool
verbose* {.
defaultValue: false
desc: "Enables verbose output; default false".}: bool
of rewindState:
blockRoot* {.
argument
desc: "Block root".}: string
slot* {.
argument
desc: "Slot".}: uint64
of exportEra:
era* {.
defaultValue: 0
desc: "The era number to write".}: uint64
eraCount* {.
defaultValue: 1
desc: "Number of eras to write".}: uint64
of validatorPerf:
perfSlot* {.
defaultValue: -128 * SLOTS_PER_EPOCH.int64
name: "start-slot"
desc: "Starting slot, negative = backwards from head".}: int64
perfSlots* {.
defaultValue: 0
name: "slots"
desc: "Number of slots to run benchmark for, 0 = all the way to head".}: uint64
proc getBlockRange(dag: ChainDAGRef, startSlot: int64, count: uint64): seq[BlockRef] =
# Range of block in reverse order
let
start =
if startSlot >= 0: Slot(startSlot)
elif uint64(-startSlot) >= dag.head.slot: Slot(0)
else: Slot(dag.head.slot - uint64(-startSlot))
ends =
if count == 0: dag.head.slot + 1
else: start + count
var
blockRefs: seq[BlockRef]
cur = dag.head
while cur != nil:
if cur.slot < ends:
if cur.slot < start or cur.slot == 0: # skip genesis
break
else:
blockRefs.add cur
cur = cur.parent
blockRefs
proc cmdBench(conf: DbConf, runtimePreset: RuntimePreset) =
var timers: array[Timers, RunningStat]
echo "Opening database..."
let
db = BeaconChainDB.new(
runtimePreset, conf.databaseDir.string,)
dbBenchmark = BeaconChainDB.new(runtimePreset, "benchmark")
defer:
db.close()
dbBenchmark.close()
if not ChainDAGRef.isInitialized(db):
echo "Database not initialized"
quit 1
echo "Initializing block pool..."
let dag = withTimerRet(timers[tInit]):
ChainDAGRef.init(runtimePreset, db, {})
var
blockRefs = dag.getBlockRange(conf.benchSlot, conf.benchSlots)
blocks: seq[TrustedSignedBeaconBlock]
echo &"Loaded {dag.blocks.len} blocks, head slot {dag.head.slot}, selected {blockRefs.len} blocks"
doAssert blockRefs.len() > 0, "Must select at least one block"
for b in 0..<blockRefs.len:
withTimer(timers[tLoadBlock]):
blocks.add db.getBlock(blockRefs[blockRefs.len - b - 1].root).get()
let state = newClone(dag.headState)
var
cache = StateCache()
rewards = RewardInfo()
loadedState = new BeaconState
withTimer(timers[tLoadState]):
dag.updateStateData(
state[], blockRefs[^1].atSlot(blockRefs[^1].slot - 1), false, cache)
for b in blocks.mitems():
while getStateField(state[], slot) < b.message.slot:
let isEpoch = (getStateField(state[], slot) + 1).isEpoch()
withTimer(timers[if isEpoch: tAdvanceEpoch else: tAdvanceSlot]):
let ok = process_slots(
state[].data, getStateField(state[], slot) + 1, cache, rewards, {})
doAssert ok, "Slot processing can't fail with correct inputs"
var start = Moment.now()
withTimer(timers[tApplyBlock]):
if conf.resetCache:
cache = StateCache()
if not state_transition(
runtimePreset, state[].data, b, cache, rewards, {slotProcessed}, noRollback):
dump("./", b)
echo "State transition failed (!)"
quit 1
if conf.printTimes:
echo b.message.slot, ",", toHex(b.root.data), ",", nanoseconds(Moment.now() - start)
if conf.storeBlocks:
withTimer(timers[tDbStore]):
dbBenchmark.putBlock(b)
if getStateField(state[], slot).isEpoch and conf.storeStates:
if getStateField(state[], slot).epoch < 2:
dbBenchmark.putState(state[].data.root, state[].data.data)
dbBenchmark.checkpoint()
else:
withTimer(timers[tDbStore]):
dbBenchmark.putState(state[].data.root, state[].data.data)
dbBenchmark.checkpoint()
withTimer(timers[tDbLoad]):
doAssert dbBenchmark.getState(state[].data.root, loadedState[], noRollback)
if getStateField(state[], slot).epoch mod 16 == 0:
doAssert hash_tree_root(state[].data.data) == hash_tree_root(loadedState[])
printTimers(false, timers)
proc cmdDumpState(conf: DbConf, preset: RuntimePreset) =
let db = BeaconChainDB.new(preset, conf.databaseDir.string)
defer: db.close()
for stateRoot in conf.stateRoot:
try:
let root = Eth2Digest(data: hexToByteArray[32](stateRoot))
var state = (ref HashedBeaconState)(root: root)
if not db.getState(root, state.data, noRollback):
echo "Couldn't load ", root
else:
dump("./", state[])
except CatchableError as e:
echo "Couldn't load ", stateRoot, ": ", e.msg
proc cmdDumpBlock(conf: DbConf, preset: RuntimePreset) =
let db = BeaconChainDB.new(preset, conf.databaseDir.string)
defer: db.close()
for blockRoot in conf.blockRootx:
try:
let root = Eth2Digest(data: hexToByteArray[32](blockRoot))
if (let blck = db.getBlock(root); blck.isSome):
dump("./", blck.get())
else:
echo "Couldn't load ", root
except CatchableError as e:
echo "Couldn't load ", blockRoot, ": ", e.msg
proc copyPrunedDatabase(
db: BeaconChainDB, copyDb: BeaconChainDB,
dryRun, verbose, keepOldStates: bool) =
## Create a pruned copy of the beacon chain database
let
headBlock = db.getHeadBlock()
tailBlock = db.getTailBlock()
doAssert headBlock.isOk and tailBlock.isOk
doAssert db.getBlock(headBlock.get).isOk
doAssert db.getBlock(tailBlock.get).isOk
var
beaconState: ref BeaconState
finalizedEpoch: Epoch # default value of 0 is conservative/safe
prevBlockSlot = db.getBlock(db.getHeadBlock().get).get.message.slot
beaconState = new BeaconState
let headEpoch = db.getBlock(headBlock.get).get.message.slot.epoch
# Tail states are specially addressed; no stateroot intermediary
if not db.getState(
db.getBlock(tailBlock.get).get.message.state_root, beaconState[],
noRollback):
doAssert false, "could not load tail state"
if not dry_run:
copyDb.putState(beaconState[])
for signedBlock in getAncestors(db, headBlock.get):
if not dry_run:
copyDb.putBlock(signedBlock)
copyDb.checkpoint()
if verbose:
echo "copied block at slot ", signedBlock.message.slot
for slot in countdown(prevBlockSlot, signedBlock.message.slot + 1):
if slot mod SLOTS_PER_EPOCH != 0 or
((not keepOldStates) and slot.epoch < finalizedEpoch):
continue
# Could also only copy these states, head and finalized, plus tail state
let stateRequired = slot.epoch in [finalizedEpoch, headEpoch]
let sr = db.getStateRoot(signedBlock.root, slot)
if sr.isErr:
if stateRequired:
echo "skipping state root required for slot ",
slot, " with root ", signedBlock.root
continue
if not db.getState(sr.get, beaconState[], noRollback):
# Don't copy dangling stateroot pointers
if stateRequired:
doAssert false, "state root and state required"
continue
finalizedEpoch = max(
finalizedEpoch, beaconState.finalized_checkpoint.epoch)
if not dry_run:
copyDb.putStateRoot(signedBlock.root, slot, sr.get)
copyDb.putState(beaconState[])
if verbose:
echo "copied state at slot ", slot, " from block at ", shortLog(signedBlock.message.slot)
prevBlockSlot = signedBlock.message.slot
if not dry_run:
copyDb.putHeadBlock(headBlock.get)
copyDb.putTailBlock(tailBlock.get)
proc cmdPrune(conf: DbConf, preset: RuntimePreset) =
let
db = BeaconChainDB.new(preset, conf.databaseDir.string)
# TODO: add the destination as CLI paramter
copyDb = BeaconChainDB.new(preset, "pruned_db")
defer:
db.close()
copyDb.close()
db.copyPrunedDatabase(copyDb, conf.dryRun, conf.verbose, conf.keepOldStates)
proc cmdRewindState(conf: DbConf, preset: RuntimePreset) =
echo "Opening database..."
let db = BeaconChainDB.new(preset, conf.databaseDir.string)
defer: db.close()
if not ChainDAGRef.isInitialized(db):
echo "Database not initialized"
quit 1
echo "Initializing block pool..."
let dag = init(ChainDAGRef, preset, db)
let blckRef = dag.getRef(fromHex(Eth2Digest, conf.blockRoot))
if blckRef == nil:
echo "Block not found in database"
return
let tmpState = assignClone(dag.headState)
dag.withState(tmpState[], blckRef.atSlot(Slot(conf.slot))):
echo "Writing state..."
dump("./", hashedState, blck)
proc atCanonicalSlot(blck: BlockRef, slot: Slot): BlockSlot =
if slot == 0:
blck.atSlot(slot)
else:
blck.atSlot(slot - 1).blck.atSlot(slot)
proc cmdExportEra(conf: DbConf, preset: RuntimePreset) =
let db = BeaconChainDB.new(preset, conf.databaseDir.string)
defer: db.close()
if not ChainDAGRef.isInitialized(db):
echo "Database not initialized"
quit 1
echo "Initializing block pool..."
let
dag = init(ChainDAGRef, preset, db)
let tmpState = assignClone(dag.headState)
for era in conf.era..<conf.era + conf.eraCount:
let
firstSlot = if era == 0: Slot(0) else: Slot((era - 1) * SLOTS_PER_HISTORICAL_ROOT)
endSlot = Slot(era * SLOTS_PER_HISTORICAL_ROOT)
slotCount = endSlot - firstSlot
name = &"ethereum2-mainnet-{era.int:08x}-{1:08x}"
canonical = dag.head.atCanonicalSlot(endSlot)
if endSlot > dag.head.slot:
echo "Written all complete eras"
break
var e2s = E2Store.open(".", name, firstSlot).get()
defer: e2s.close()
dag.withState(tmpState[], canonical):
e2s.appendRecord(state).get()
var
ancestors: seq[BlockRef]
cur = canonical.blck
if era != 0:
while cur != nil and cur.slot >= firstSlot:
ancestors.add(cur)
cur = cur.parent
for i in 0..<ancestors.len():
let
ancestor = ancestors[ancestors.len - 1 - i]
e2s.appendRecord(db.getBlock(ancestor.root).get()).get()
type
# Validator performance metrics tool based on
# https://github.com/paulhauner/lighthouse/blob/etl/lcli/src/etl/validator_performance.rs
# Credits to Paul Hauner
ValidatorPerformance = object
attestation_hits: uint64
attestation_misses: uint64
head_attestation_hits: uint64
head_attestation_misses: uint64
target_attestation_hits: uint64
target_attestation_misses: uint64
first_slot_head_attester_when_first_slot_empty: uint64
first_slot_head_attester_when_first_slot_not_empty: uint64
delays: Table[uint64, uint64]
proc cmdValidatorPerf(conf: DbConf, runtimePreset: RuntimePreset) =
echo "Opening database..."
let
db = BeaconChainDB.new(
runtimePreset, conf.databaseDir.string,)
defer:
db.close()
if not ChainDAGRef.isInitialized(db):
echo "Database not initialized"
quit 1
echo "# Initializing block pool..."
let dag = ChainDAGRef.init(runtimePreset, db, {})
var
blockRefs = dag.getBlockRange(conf.perfSlot, conf.perfSlots)
perfs = newSeq[ValidatorPerformance](
dag.headState.data.data.validators.len())
cache = StateCache()
rewards = RewardInfo()
blck: TrustedSignedBeaconBlock
doAssert blockRefs.len() > 0, "Must select at least one block"
echo "# Analyzing performance for epochs ",
blockRefs[^1].slot.epoch, " - ", blockRefs[0].slot.epoch
let state = newClone(dag.headState)
dag.updateStateData(
state[], blockRefs[^1].atSlot(blockRefs[^1].slot - 1), false, cache)
proc processEpoch() =
let
prev_epoch_target_slot =
state[].data.data.get_previous_epoch().compute_start_slot_at_epoch()
penultimate_epoch_end_slot =
if prev_epoch_target_slot == 0: Slot(0)
else: prev_epoch_target_slot - 1
first_slot_empty =
state[].data.data.get_block_root_at_slot(prev_epoch_target_slot) ==
state[].data.data.get_block_root_at_slot(penultimate_epoch_end_slot)
let first_slot_attesters = block:
let committee_count = state[].data.data.get_committee_count_per_slot(
prev_epoch_target_slot, cache)
var indices = HashSet[ValidatorIndex]()
for committee_index in 0..<committee_count:
for validator_index in state[].data.data.get_beacon_committee(
prev_epoch_target_slot, committee_index.CommitteeIndex, cache):
indices.incl(validator_index)
indices
for i, s in rewards.statuses.pairs():
let perf = addr perfs[i]
if RewardFlags.isActiveInPreviousEpoch in s.flags:
if s.is_previous_epoch_attester.isSome():
perf.attestation_hits += 1;
if RewardFlags.isPreviousEpochHeadAttester in s.flags:
perf.head_attestation_hits += 1
else:
perf.head_attestation_misses += 1
if RewardFlags.isPreviousEpochTargetAttester in s.flags:
perf.target_attestation_hits += 1
else:
perf.target_attestation_misses += 1
if i.ValidatorIndex in first_slot_attesters:
if first_slot_empty:
perf.first_slot_head_attester_when_first_slot_empty += 1
else:
perf.first_slot_head_attester_when_first_slot_not_empty += 1
if s.inclusion_info.isSome():
perf.delays.mGetOrPut(s.inclusion_info.get().delay, 0'u64) += 1
else:
perf.attestation_misses += 1;
for bi in 0..<blockRefs.len:
blck = db.getBlock(blockRefs[blockRefs.len - bi - 1].root).get()
while getStateField(state[], slot) < blck.message.slot:
let ok = process_slots(
state[].data, getStateField(state[], slot) + 1, cache, rewards, {})
doAssert ok, "Slot processing can't fail with correct inputs"
if getStateField(state[], slot).isEpoch():
processEpoch()
if not state_transition(
runtimePreset, state[].data, blck, cache, rewards, {slotProcessed}, noRollback):
echo "State transition failed (!)"
quit 1
# Capture rewards from the epoch leading up to the last block
let nextEpochStart = (blck.message.slot.epoch + 1).compute_start_slot_at_epoch
doAssert process_slots(state[].data, nextEpochStart, cache, rewards, {})
processEpoch()
echo "validator_index,attestation_hits,attestation_misses,head_attestation_hits,head_attestation_misses,target_attestation_hits,target_attestation_misses,delay_avg,first_slot_head_attester_when_first_slot_empty,first_slot_head_attester_when_first_slot_not_empty"
for (i, perf) in perfs.pairs:
var
count = 0'u64
sum = 0'u64
for delay, n in perf.delays:
count += n
sum += delay * n
echo i,",",
perf.attestation_hits,",",
perf.attestation_misses,",",
perf.head_attestation_hits,",",
perf.head_attestation_misses,",",
perf.target_attestation_hits,",",
perf.target_attestation_misses,",",
if count == 0: 0.0
else: sum.float / count.float,",",
perf.first_slot_head_attester_when_first_slot_empty,",",
perf.first_slot_head_attester_when_first_slot_not_empty
when isMainModule:
var
conf = DbConf.load()
runtimePreset = getRuntimePresetForNetwork(conf.eth2Network)
case conf.cmd
of bench:
cmdBench(conf, runtimePreset)
of dumpState:
cmdDumpState(conf, runtimePreset)
of dumpBlock:
cmdDumpBlock(conf, runtimePreset)
of pruneDatabase:
cmdPrune(conf, runtimePreset)
of rewindState:
cmdRewindState(conf, runtimePreset)
of exportEra:
cmdExportEra(conf, runtimePreset)
of validatorPerf:
cmdValidatorPerf(conf, runtimePreset)