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dash/test/functional/feature_llmq_data_recovery.py

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#!/usr/bin/env python3
# Copyright (c) 2021 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
import time
from test_framework.mininode import logger
from test_framework.test_framework import DashTestFramework
from test_framework.util import force_finish_mnsync, connect_nodes
'''
feature_llmq_data_recovery.py
Tests automated recovery of DKG data and the related command line parameters:
-llmq-data-recovery
-llmq-qvvec-sync
'''
# LLMQ types available in regtest
llmq_test = 100
llmq_test_v17 = 102
llmq_type_strings = {llmq_test: 'llmq_test', llmq_test_v17: 'llmq_test_v17'}
class QuorumDataRecoveryTest(DashTestFramework):
def set_test_params(self):
extra_args = [["-vbparams=dip0020:0:999999999999:10:8:6:5"] for _ in range(9)]
self.set_dash_test_params(9, 7, fast_dip3_enforcement=True, extra_args=extra_args)
self.set_dash_llmq_test_params(4, 3)
def restart_mn(self, mn, reindex=False, qvvec_sync=[], qdata_recovery_enabled=True):
args = self.extra_args[mn.nodeIdx] + ['-masternodeblsprivkey=%s' % mn.keyOperator,
'-llmq-data-recovery=%d' % qdata_recovery_enabled]
if reindex:
args.append('-reindex')
for llmq_sync in qvvec_sync:
args.append('-llmq-qvvec-sync=%s:%d' % (llmq_type_strings[llmq_sync[0]], llmq_sync[1]))
self.restart_node(mn.nodeIdx, args)
force_finish_mnsync(mn.node)
connect_nodes(mn.node, 0)
self.sync_blocks()
def restart_mns(self, mns=None, exclude=[], reindex=False, qvvec_sync=[], qdata_recovery_enabled=True):
for mn in self.mninfo if mns is None else mns:
if mn not in exclude:
self.restart_mn(mn, reindex, qvvec_sync, qdata_recovery_enabled)
self.wait_for_sporks_same()
def test_mns(self, quorum_type_in, quorum_hash_in, valid_mns=[], all_mns=[], test_secret=True, expect_secret=True,
recover=False, timeout=120):
for mn in all_mns:
if mn not in valid_mns:
assert not self.test_mn_quorum_data(mn, quorum_type_in, quorum_hash_in, test_secret, False)
self.wait_for_quorum_data(valid_mns, quorum_type_in, quorum_hash_in, test_secret, expect_secret, recover, timeout)
def get_mn(self, protx_hash):
for mn in self.mninfo:
if mn.proTxHash == protx_hash:
return mn
return None
def get_member_mns(self, quorum_type, quorum_hash):
members = self.nodes[0].quorum("info", quorum_type, quorum_hash)["members"]
mns = []
for member in members:
if member["valid"]:
mns.append(self.get_mn(member["proTxHash"]))
return mns
def get_subset_only_in_left(self, quorum_members_left, quorum_members_right):
quorum_members_subset = quorum_members_left.copy()
for mn in list(set(quorum_members_left) & set(quorum_members_right)):
quorum_members_subset.remove(mn)
return quorum_members_subset
def test_llmq_qvvec_sync(self, llmq_sync_entries):
self.log.info("Test with %d -llmq-qvvec-sync option(s)" % len(llmq_sync_entries))
for llmq_sync in llmq_sync_entries:
llmq_type = llmq_sync[0]
llmq_sync_mode = llmq_sync[1]
self.log.info("Validate -llmq-qvvec-sync=%s:%d" % (llmq_type_strings[llmq_type], llmq_sync_mode))
# First restart with recovery thread triggering disabled
self.restart_mns(qdata_recovery_enabled=False)
# If mode=0 i.e. "Sync always" all nodes should request the qvvec from new quorums
if llmq_sync_mode == 0:
quorum_hash = self.mine_quorum()
member_mns = self.get_member_mns(llmq_type, quorum_hash)
# So far the only the quorum members of the quorum should have the quorum verification vector
self.test_mns(llmq_type, quorum_hash, valid_mns=member_mns, all_mns=self.mninfo,
test_secret=False, recover=False)
# Now restart with recovery enabled
self.restart_mns(qvvec_sync=llmq_sync_entries)
# All other nodes should now request the qvvec from the quorum
self.test_mns(llmq_type, quorum_hash, valid_mns=self.mninfo, test_secret=False, recover=True)
# If mode=1 i.e. "Sync only if type member" not all nodes should request the qvvec from quorum 1 and 2
elif llmq_sync_mode == 1:
# Create quorum_1 and a quorum_2 so that we have subsets (members_only_in_1, members_only_in_2) where
# each only contains nodes that are members of quorum_1 but not quorum_2 and vice versa
quorum_hash_1 = None
quorum_hash_2 = None
members_only_in_1 = []
members_only_in_2 = []
while len(members_only_in_1) == 0 or len(members_only_in_2) == 0:
quorum_hash_1 = self.mine_quorum()
quorum_hash_2 = self.mine_quorum()
member_mns_1 = self.get_member_mns(llmq_type, quorum_hash_1)
member_mns_2 = self.get_member_mns(llmq_type, quorum_hash_2)
members_only_in_1 = self.get_subset_only_in_left(member_mns_1, member_mns_2)
members_only_in_2 = self.get_subset_only_in_left(member_mns_2, member_mns_1)
# So far the nodes of quorum_1 shouldn't have the quorum verification vector of quorum_2 and vice versa
self.test_mns(llmq_type, quorum_hash_2, valid_mns=[], all_mns=members_only_in_1, expect_secret=False)
self.test_mns(llmq_type, quorum_hash_1, valid_mns=[], all_mns=members_only_in_2, expect_secret=False)
# Now restart with recovery enabled
self.restart_mns(qvvec_sync=llmq_sync_entries)
# Members which are only in quorum 2 should request the qvvec from quorum 1 from the members of quorum 1
self.test_mns(llmq_type, quorum_hash_1, valid_mns=members_only_in_2, expect_secret=False, recover=True)
# Members which are only in quorum 1 should request the qvvec from quorum 2 from the members of quorum 2
self.test_mns(llmq_type, quorum_hash_2, valid_mns=members_only_in_1, expect_secret=False, recover=True)
def run_test(self):
node = self.nodes[0]
node.spork("SPORK_17_QUORUM_DKG_ENABLED", 0)
node.spork("SPORK_21_QUORUM_ALL_CONNECTED", 0)
self.wait_for_sporks_same()
self.activate_dip8()
logger.info("Test automated DGK data recovery")
# This two nodes will remain the only ones with valid DKG data
last_resort_test = None
last_resort_v17 = None
while True:
# Mine the quorums used for the recovery test
quorum_hash_recover = self.mine_quorum()
# Get all their member masternodes
member_mns_recover_test = self.get_member_mns(llmq_test, quorum_hash_recover)
member_mns_recover_v17 = self.get_member_mns(llmq_test_v17, quorum_hash_recover)
# All members should initially be valid
self.test_mns(llmq_test, quorum_hash_recover, valid_mns=member_mns_recover_test)
self.test_mns(llmq_test_v17, quorum_hash_recover, valid_mns=member_mns_recover_v17)
try:
# As last resorts find one node which is in llmq_test but not in llmq_test_v17 and one other vice versa
last_resort_test = self.get_subset_only_in_left(member_mns_recover_test, member_mns_recover_v17)[0]
last_resort_v17 = self.get_subset_only_in_left(member_mns_recover_v17, member_mns_recover_test)[0]
break
except IndexError:
continue
assert last_resort_test != last_resort_v17
# Reindex all other nodes the to drop their DKG data, first run with recovery disabled to make sure disabling
# works as expected
recover_members = member_mns_recover_test + member_mns_recover_v17
exclude_members = [last_resort_test, last_resort_v17]
# Reindex all masternodes but exclude the last_resort for both testing quorums
self.restart_mns(exclude=exclude_members, reindex=True, qdata_recovery_enabled=False)
# Validate all but one are invalid members now
self.test_mns(llmq_test, quorum_hash_recover, valid_mns=[last_resort_test], all_mns=member_mns_recover_test)
self.test_mns(llmq_test_v17, quorum_hash_recover, valid_mns=[last_resort_v17], all_mns=member_mns_recover_v17)
# If recovery would be enabled it would trigger after the mocktime bump / mined block
self.bump_mocktime(self.quorum_data_request_expiration_timeout + 1)
node.generate(1)
time.sleep(10)
# Make sure they are still invalid
self.test_mns(llmq_test, quorum_hash_recover, valid_mns=[last_resort_test], all_mns=member_mns_recover_test)
self.test_mns(llmq_test_v17, quorum_hash_recover, valid_mns=[last_resort_v17], all_mns=member_mns_recover_v17)
# Mining a block should not result in a chainlock now because the responsible quorum shouldn't have enough
# valid members.
self.wait_for_chainlocked_block(node, node.generate(1)[0], False, 5)
# Now restart with recovery enabled
self.restart_mns(mns=recover_members, exclude=exclude_members, reindex=True, qdata_recovery_enabled=True)
# Validate that all invalid members recover. Note: recover=True leads to mocktime bumps and mining while waiting
# which trigger CQuorumManger::TriggerQuorumDataRecoveryThreads()
self.test_mns(llmq_test, quorum_hash_recover, valid_mns=member_mns_recover_test, recover=True)
self.test_mns(llmq_test_v17, quorum_hash_recover, valid_mns=member_mns_recover_v17, recover=True)
# Mining a block should result in a chainlock now because the quorum should be healed
self.wait_for_chainlocked_block_all_nodes(node.getbestblockhash())
logger.info("Test -llmq-qvvec-sync command line parameter")
# Run with one type separated and then both possible (for regtest) together, both calls generate new quorums
# and are restarting the nodes with the other parameters
self.test_llmq_qvvec_sync([(llmq_test, 0)])
self.test_llmq_qvvec_sync([(llmq_test_v17, 1)])
self.test_llmq_qvvec_sync([(llmq_test, 0), (llmq_test_v17, 1)])
logger.info("Test invalid command line parameter values")
node.stop_node()
node.wait_until_stopped()
# Test -llmq-qvvec-sync entry format
node.assert_start_raises_init_error(["-llmq-qvvec-sync="],
"Error: Invalid format in -llmq-qvvec-sync:")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=0"],
"Error: Invalid format in -llmq-qvvec-sync: 0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=0:"],
"Error: Invalid format in -llmq-qvvec-sync: 0:")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=:0"],
"Error: Invalid format in -llmq-qvvec-sync: :0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=0:0:0"],
"Error: Invalid format in -llmq-qvvec-sync: 0:0:0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=0::"],
"Error: Invalid format in -llmq-qvvec-sync: 0::")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=::0"],
"Error: Invalid format in -llmq-qvvec-sync: ::0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=:0:"],
"Error: Invalid format in -llmq-qvvec-sync: :0:")
# Test llmqType
node.assert_start_raises_init_error(["-llmq-qvvec-sync=0:0"],
"Error: Invalid llmqType in -llmq-qvvec-sync: 0:0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=llmq-test:0"],
"Error: Invalid llmqType in -llmq-qvvec-sync: llmq-test:0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=100:0", "-llmq-qvvec-sync=0"],
"Error: Invalid llmqType in -llmq-qvvec-sync: 100:0")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=llmq_test:0", "-llmq-qvvec-sync=llmq_test:0"],
"Error: Duplicated llmqType in -llmq-qvvec-sync: llmq_test:0")
# Test mode
node.assert_start_raises_init_error(["-llmq-qvvec-sync=llmq_test:-1"],
"Error: Invalid mode in -llmq-qvvec-sync: llmq_test:-1")
node.assert_start_raises_init_error(["-llmq-qvvec-sync=llmq_test:2"],
"Error: Invalid mode in -llmq-qvvec-sync: llmq_test:2")
if __name__ == '__main__':
QuorumDataRecoveryTest().main()
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