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nimbus-eth1/tests/test_aristo/test_tx.nim

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# Nimbus
# Copyright (c) 2023-2024 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.
## Aristo (aka Patricia) DB records transaction based merge test
import
std/[algorithm, bitops, sequtils, sets, tables],
eth/common,
results,
unittest2,
stew/endians2,
../../nimbus/db/opts,
../../nimbus/db/core_db/backend/aristo_rocksdb,
../../nimbus/db/aristo/[
aristo_check,
aristo_debug,
aristo_delete,
aristo_desc,
aristo_get,
aristo_hike,
aristo_init/persistent,
aristo_nearby,
aristo_part,
aristo_part/part_debug,
aristo_tx],
../replay/xcheck,
./test_helpers
type
PrngDesc = object
prng: uint32 ## random state
KnownHasherFailure* = seq[(string,(int,AristoError))]
## (<sample-name> & "#" <instance>, (<vertex-id>,<error-symbol>))
const
testRootVid = VertexID(2)
## Need to reconfigure for the test, root ID 1 cannot be deleted as a trie
# ------------------------------------------------------------------------------
# Private helpers
# ------------------------------------------------------------------------------
proc posixPrngRand(state: var uint32): byte =
## POSIX.1-2001 example of a rand() implementation, see manual page rand(3).
state = state * 1103515245 + 12345;
let val = (state shr 16) and 32767 # mod 2^31
(val shr 8).byte # Extract second byte
proc rand[W: SomeInteger|VertexID](ap: var PrngDesc; T: type W): T =
var a: array[sizeof T,byte]
for n in 0 ..< sizeof T:
a[n] = ap.prng.posixPrngRand().byte
when sizeof(T) == 1:
let w = uint8.fromBytesBE(a).T
when sizeof(T) == 2:
let w = uint16.fromBytesBE(a).T
when sizeof(T) == 4:
let w = uint32.fromBytesBE(a).T
else:
let w = uint64.fromBytesBE(a).T
when T is SomeUnsignedInt:
# That way, `fromBytesBE()` can be applied to `uint`
result = w
else:
# That way the result is independent of endianness
(addr result).copyMem(unsafeAddr w, sizeof w)
proc init(T: type PrngDesc; seed: int): PrngDesc =
result.prng = (seed and 0x7fffffff).uint32
proc rand(td: var PrngDesc; top: int): int =
if 0 < top:
let mask = (1 shl (8 * sizeof(int) - top.countLeadingZeroBits)) - 1
for _ in 0 ..< 100:
let w = mask and td.rand(typeof(result))
if w < top:
return w
raiseAssert "Not here (!)"
# -----------------------
proc randomisedLeafs(
db: AristoDbRef;
ltys: HashSet[LeafTie];
td: var PrngDesc;
): Result[seq[(LeafTie,RootedVertexID)],(VertexID,AristoError)] =
var lvp: seq[(LeafTie,RootedVertexID)]
for lty in ltys:
var hike: Hike
?lty.hikeUp(db, Opt.none(VertexRef), hike)
lvp.add (lty,(hike.root, hike.legs[^1].wp.vid))
var lvp2 = lvp.sorted(
cmp = proc(a,b: (LeafTie,RootedVertexID)): int = cmp(a[0],b[0]))
if 2 < lvp2.len:
for n in 0 ..< lvp2.len-1:
let r = n + td.rand(lvp2.len - n)
lvp2[n].swap lvp2[r]
ok lvp2
proc innerCleanUp(db: var AristoDbRef): bool {.discardable.} =
## Defer action
if not db.isNil:
let rx = db.txTop()
if rx.isOk:
let rc = rx.value.collapse(commit=false)
xCheckRc rc.error == 0
db.finish(eradicate=true)
db = AristoDbRef(nil)
true
# --------------------------------
proc saveToBackend(
tx: var AristoTxRef;
relax: bool;
noisy: bool;
debugID: int;
): bool =
var db = tx.to(AristoDbRef)
# Verify context: nesting level must be 2 (i.e. two transactions)
xCheck tx.level == 2
block:
let rc = db.checkTop()
xCheckRc rc.error == (0,0)
# Commit and hashify the current layer
block:
let rc = tx.commit()
xCheckRc rc.error == 0
block:
let rc = db.txTop()
xCheckRc rc.error == 0
tx = rc.value
# Verify context: nesting level must be 1 (i.e. one transaction)
xCheck tx.level == 1
block:
let rc = db.checkBE()
xCheckRc rc.error == (0,0)
# Commit and save to backend
block:
let rc = tx.commit()
xCheckRc rc.error == 0
block:
let rc = db.txTop()
xCheckErr rc.value.level < 0 # force error
block:
let rc = db.schedStow()
xCheckRc rc.error == 0
block:
let rc = db.checkBE()
xCheckRc rc.error == (0,0):
noisy.say "***", "saveToBackend (8)", " debugID=", debugID
# Update layers to original level
tx = db.txBegin().value.to(AristoDbRef).txBegin().value
true
proc fwdWalkVerify(
db: AristoDbRef;
root: VertexID;
leftOver: HashSet[LeafTie];
noisy: bool;
debugID: int;
): bool =
let
nLeafs = leftOver.len
var
leftOver = leftOver
last = LeafTie()
n = 0
for (key,_) in db.rightPairs low(LeafTie,root):
xCheck key in leftOver:
noisy.say "*** fwdWalkVerify", "id=", n + (nLeafs + 1) * debugID
leftOver.excl key
last = key
n.inc
# Verify stop condition
if last.root == VertexID(0):
last = low(LeafTie,root)
elif last != high(LeafTie,root):
last = last.next
let rc = last.right db
xCheck rc.isErr
xCheck rc.error[1] == NearbyBeyondRange
xCheck n == nLeafs
true
proc revWalkVerify(
db: AristoDbRef;
root: VertexID;
leftOver: HashSet[LeafTie];
noisy: bool;
debugID: int;
): bool =
let
nLeafs = leftOver.len
var
leftOver = leftOver
last = LeafTie()
n = 0
for (key,_) in db.leftPairs high(LeafTie,root):
xCheck key in leftOver:
noisy.say "*** revWalkVerify", " id=", n + (nLeafs + 1) * debugID
leftOver.excl key
last = key
n.inc
# Verify stop condition
if last.root == VertexID(0):
last = high(LeafTie,root)
elif last != low(LeafTie,root):
last = last.prev
let rc = last.left db
xCheck rc.isErr
xCheck rc.error[1] == NearbyBeyondRange
xCheck n == nLeafs
true
# ------------------------------------------------------------------------------
# Public test function
# ------------------------------------------------------------------------------
proc testTxMergeAndDeleteOneByOne*(
noisy: bool;
list: openArray[ProofTrieData];
rdbPath: string; # Rocks DB storage directory
): bool =
var
prng = PrngDesc.init 42
db = AristoDbRef(nil)
fwdRevVfyToggle = true
defer:
if not db.isNil:
db.finish(eradicate=true)
for n,w in list:
# Start with brand new persistent database.
db = block:
if 0 < rdbPath.len:
let (dbOpts, cfOpts) = DbOptions.init().toRocksDb()
let rc = AristoDbRef.init(RdbBackendRef, rdbPath, DbOptions.init(), dbOpts, cfOpts, [])
xCheckRc rc.error == 0
rc.value()[0]
else:
AristoDbRef.init(MemBackendRef)
# Start transaction (double frame for testing)
xCheck db.txTop.isErr
var tx = db.txBegin().value.to(AristoDbRef).txBegin().value
xCheck tx.isTop()
xCheck tx.level == 2
# Reset database so that the next round has a clean setup
defer: db.innerCleanUp
# Merge leaf data into main trie
let kvpLeafs = block:
var lst = w.kvpLst.mapRootVid testRootVid
# The list might be reduced for isolation of particular properties,
# e.g. lst.setLen(min(5,lst.len))
lst
for i,leaf in kvpLeafs:
let rc = db.mergeGenericData leaf
xCheckRc rc.error == 0
# List of all leaf entries that should be on the database
var leafsLeft = kvpLeafs.mapIt(it.leafTie).toHashSet
# Provide a (reproducible) peudo-random copy of the leafs list
let leafVidPairs = block:
let rc = db.randomisedLeafs(leafsLeft, prng)
xCheckRc rc.error == (0,0)
rc.value
# Trigger subsequent saving tasks in loop below
let (saveMod, saveRest, relax) = block:
if leafVidPairs.len < 17: (7, 3, false)
elif leafVidPairs.len < 31: (11, 7, false)
else: (leafVidPairs.len div 5, 11, true)
# === Loop over leafs ===
for u,lvp in leafVidPairs:
let
runID = n + list.len * u
tailWalkVerify = 7 # + 999
doSaveBeOk = ((u mod saveMod) == saveRest)
(leaf, lid) = lvp
if doSaveBeOk:
let saveBeOk = tx.saveToBackend(relax=relax, noisy=noisy, runID)
xCheck saveBeOk:
noisy.say "***", "del1by1(2)",
" u=", u,
" n=", n, "/", list.len,
"\n db\n ", db.pp(backendOk=true),
""
# Delete leaf
block:
let rc = db.deleteGenericData(leaf.root, @(leaf.path))
xCheckRc rc.error == 0
# Update list of remaininf leafs
leafsLeft.excl leaf
let deletedVtx = tx.db.getVtx lid
xCheck deletedVtx.isValid == false:
noisy.say "***", "del1by1(8)"
# Walking the database is too slow for large tables. So the hope is that
# potential errors will not go away and rather pop up later, as well.
if leafsLeft.len <= tailWalkVerify:
if u < leafVidPairs.len-1:
if fwdRevVfyToggle:
fwdRevVfyToggle = false
if not db.fwdWalkVerify(leaf.root, leafsLeft, noisy, runID):
return
else:
fwdRevVfyToggle = true
if not db.revWalkVerify(leaf.root, leafsLeft, noisy, runID):
return
when true and false:
noisy.say "***", "del1by1(9)",
" n=", n, "/", list.len,
" nLeafs=", kvpLeafs.len
true
proc testTxMergeAndDeleteSubTree*(
noisy: bool;
list: openArray[ProofTrieData];
rdbPath: string; # Rocks DB storage directory
): bool =
var
prng = PrngDesc.init 42
db = AristoDbRef(nil)
defer:
if not db.isNil:
db.finish(eradicate=true)
for n,w in list:
# Start with brand new persistent database.
db = block:
if 0 < rdbPath.len:
let (dbOpts, cfOpts) = DbOptions.init().toRocksDb()
let rc = AristoDbRef.init(RdbBackendRef, rdbPath, DbOptions.init(), dbOpts, cfOpts, [])
xCheckRc rc.error == 0
rc.value()[0]
else:
AristoDbRef.init(MemBackendRef)
# Start transaction (double frame for testing)
xCheck db.txTop.isErr
var tx = db.txBegin().value.to(AristoDbRef).txBegin().value
xCheck tx.isTop()
xCheck tx.level == 2
# Reset database so that the next round has a clean setup
defer: db.innerCleanUp
# Merge leaf data into main trie (w/vertex ID 2)
let kvpLeafs = block:
var lst = w.kvpLst.mapRootVid testRootVid
# The list might be reduced for isolation of particular properties,
# e.g. lst.setLen(min(5,lst.len))
lst
for i,leaf in kvpLeafs:
let rc = db.mergeGenericData leaf
xCheckRc rc.error == 0
# List of all leaf entries that should be on the database
var leafsLeft = kvpLeafs.mapIt(it.leafTie).toHashSet
# Provide a (reproducible) peudo-random copy of the leafs list
let leafVidPairs = block:
let rc = db.randomisedLeafs(leafsLeft, prng)
xCheckRc rc.error == (0,0)
rc.value
discard leafVidPairs
# === delete sub-tree ===
block:
let saveBeOk = tx.saveToBackend(relax=false, noisy=noisy, 1+list.len*n)
xCheck saveBeOk:
noisy.say "***", "del(1)",
" n=", n, "/", list.len,
"\n db\n ", db.pp(backendOk=true),
""
# Delete sub-tree
block:
let rc = db.deleteGenericTree testRootVid
xCheckRc rc.error == 0:
noisy.say "***", "del(2)",
" n=", n, "/", list.len,
"\n db\n ", db.pp(backendOk=true),
""
block:
let saveBeOk = tx.saveToBackend(relax=false, noisy=noisy, 2+list.len*n)
xCheck saveBeOk:
noisy.say "***", "del(3)",
" n=", n, "/", list.len,
"\n db\n ", db.pp(backendOk=true),
""
when true and false:
noisy.say "***", "del(9) n=", n, "/", list.len, " nLeafs=", kvpLeafs.len
true
# ------------------------------------------------------------------------------
# End
# ------------------------------------------------------------------------------
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