Bad Block error after using Snapshot

[JukLee0ira]

I am trying to catch up with the mainnet synchronization progress using a snapshot. After I extracted the files from the snapshot to use as the data directory, I restarted the node and encountered the following errors:

WARN [06-05|12:29:17] Head state missing, repairing chain      number=84044732 hash=90ca27…e81ae9
WARN [06-05|12:29:49] [initial] initial v2 related parameters
WARN [06-05|12:29:49] [initial] miner wait period              period=2
WARN [06-05|12:29:49] [initial] finish initialisation
WARN [06-05|13:21:22] Failed to unregister sync peer           peer=d838ae731fa6849b err="peer is not registered"
WARN [06-05|13:21:27] Full stats report failed                 err="ping timed out"
WARN [06-05|13:21:28] Failed to retrieve stats server message  err="read tcp 172.18.0.2:47678->45.82.64.150:3000: use of closed network connection"
ERROR[06-05|13:23:42] [V2 Hook Penalty] parentHeader is nil, wait too long not written to disk parentNumber=84085192
ERROR[06-05|13:23:42] [calcMasternodes] Adaptor v2 HookPenalty has error err="parentHeader is nil"
ERROR[06-05|13:23:42] [verifyHeader] Fail to calculate master nodes list with penalty Number=84085193 Hash=45599a…27a65a
WARN [06-05|13:23:42] [VerifyHeaders] Fail to verify header    fullVerify=true blockNum=84085193 blockHash=45599a…27a65a error="parentHeader is nil"
ERROR[06-05|13:23:52]
########## BAD BLOCK #########
Chain config: {"chainId":50,"homesteadBlock":1,"eip150Block":2,"eip150Hash":"0x0000000000000000000000000000000000000000000000000000000000000000","eip155Block":3,"eip158Block":3,"byzantiumBlock":4,"XDPoS":{"period":2,"epoch":900,"reward":5000,"rewardCheckpoint":900,"gap":450,"foundationWalletAddr":"0x92a289fe95a85c53b8d0d113cbaef0c1ec98ac65","SkipV1Validation":false,"v2":{"switchBlock":80370000,"config":{"maxMasternodes":108,"switchRound":3200000,"minePeriod":2,"timeoutSyncThreshold":3,"timeoutPeriod":10,"certificateThreshold":0.667},"allConfigs":{"0":{"maxMasternodes":108,"switchRound":0,"minePeriod":2,"timeoutSyncThreshold":3,"timeoutPeriod":30,"certificateThreshold":0.667},"2000":{"maxMasternodes":108,"switchRound":2000,"minePeriod":2,"timeoutSyncThreshold":2,"timeoutPeriod":600,"certificateThreshold":0.667},"220000":{"maxMasternodes":108,"switchRound":220000,"minePeriod":2,"timeoutSyncThreshold":2,"timeoutPeriod":30,"certificateThreshold":0.667},"3200000":{"maxMasternodes":108,"switchRound":3200000,"minePeriod":2,"timeoutSyncThreshold":3,"timeoutPeriod":10,"certificateThreshold":0.667},"460000":{"maxMasternodes":108,"switchRound":460000,"minePeriod":2,"timeoutSyncThreshold":2,"timeoutPeriod":20,"certificateThreshold":0.667},"8000":{"maxMasternodes":108,"switchRound":8000,"minePeriod":2,"timeoutSyncThreshold":2,"timeoutPeriod":60,"certificateThreshold":0.667}},"SkipV2Validation":false}}}

Number: 84085193
Hash: 0x45599a157336acafd6e3a7f17560460eb7605389b430585374c362947f27a65a

Round: 3766501
Error: parentHeader is nil
##############################

• The steps I followed and the snapshot file came from: XDC Network Documentation.
• The docker image I am using：xinfinorg/xdposchain:v2.4.1

[gzliudan]

In the following log messages, I saw the block 71540209 is not exist when verify header of block 71540210. Then block 71540209 is inserted into database. So I disable the function of prefetch next block for dev-upgrade branch. Please test again if you are using dev-upgrade branch.

INFO [06-06|15:20:30.200] Successfully commit and confirm block from continuous 3 blocks num=71,540,097 round=14872387 hash=16fa7b..cb0fab
INFO [06-06|15:20:30.201] [setNewRound] new round and reset pools and workers round=14872390
INFO [06-06|15:20:30.396] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:31.396] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:32.397] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:33.398] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:34.399] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:35.399] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:36.400] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:37.401] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:38.402] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:39.404] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:40.404] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:41.405] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:42.406] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:43.406] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:44.406] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:45.408] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:46.408] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:47.408] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:48.409] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:49.410] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:50.411] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:51.412] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:52.412] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:53.417] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:54.418] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:55.419] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:56.420] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:57.420] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:58.421] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:20:59.421] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:21:00.422] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
INFO [06-06|15:21:01.423] [V2 Hook Penalty] parentHeader is nil, wait block to be writen in disk parentNumber=71,540,209
ERROR[06-06|15:21:02.424] [V2 Hook Penalty] parentHeader is nil, wait too long not writen in to disk parentNumber=71,540,209
ERROR[06-06|15:21:02.425] [calcMasternodes] Adaptor v2 HookPenalty has error err="parentHeader is nil"
ERROR[06-06|15:21:02.425] [verifyHeader] Fail to calculate master nodes list with penalty Number=71,540,210 Hash=9a5f49..cb45c3
WARN [06-06|15:21:02.425] [VerifyHeaders] Fail to verify header    fullVerify=true blockNum=71,540,210 blockHash=9a5f49..cb45c3 error="parentHeader is nil"
INFO [06-06|15:21:02.426] Imported new chain segment               blocks=109 txs=313 mgas=36.954 elapsed=32.212s   mgasps=1.147  number=71,540,209 hash=463559..3f146c age=3mo2w5d dirty=0.00B