corestario/tendermint

Tendermint with an embedded BLS random beacon

tendermint's Issues

Find out if the application can work using light client

• Does CosmosSDK use light client
• Make an example application

Dont panic while initing genesis with BLS config

If BLS genesis feilds are empty, the Tendermint init stage will panic.

Make voting power of all validators equal

Run a DKG round on chain start (optional, leave the "load pre-generated keys" scenario)

Add tests for flipcoin app

DKG panic after a while

I[19026-02-19|12:05:39.548] Executed block                               module=state height=11110 validTxs=0 invalidTxs=0
I[19026-02-19|12:05:39.758] Committed state                              module=state height=11110 txs=0 appHash=FBAE78476CE901680D5686DB0867DA1E02C123BCE22286111094C7A75BABB584
fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0x3c0 pc=0x7f6fa16e8682]

runtime stack:
runtime.throw(0xf6d5ba, 0x2a)
	/snap/go/3129/src/runtime/panic.go:608 +0x72
runtime.sigpanic()
	/snap/go/3129/src/runtime/signal_unix.go:374 +0x2f2

goroutine 92 [syscall]:
runtime.cgocall(0xd25f5f, 0xc0008acf08, 0x29)
	/snap/go/3129/src/runtime/cgocall.go:128 +0x5e fp=0xc0008aced0 sp=0xc0008ace98 pc=0x40793e
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/dgaming-crypto/go/bls._Cfunc_blsSign(0xc0001abcb0, 0xc00098b980, 0xc0008bc120, 0x30)
	_cgo_gotypes.go:186 +0x45 fp=0xc0008acf08 sp=0xc0008aced0 pc=0xa5ee65
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/dgaming-crypto/go/bls.(*SecretKey).Sign.func1(0xc0008bc120, 0x30, 0x30, 0xc0001abcb0, 0xc00098b980, 0xc0008bc120, 0x30)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/dgaming-crypto/go/bls/bls.go:323 +0xf8 fp=0xc0008acf60 sp=0xc0008acf08 pc=0xa64858
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/dgaming-crypto/go/bls.(*SecretKey).Sign(0xc00098b980, 0xc0008bc0f0, 0x30, 0x30)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/dgaming-crypto/go/bls/bls.go:323 +0xa1 fp=0xc0008acfb0 sp=0xc0008acf60 pc=0xa62671
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/types.(*BLSVerifier).Sign(0xc00082be20, 0xc000893f80, 0x30, 0x30, 0x20, 0x1, 0xc00226de00)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/types/signable.go:58 +0x84 fp=0xc0008ad018 sp=0xc0008acfb0 pc=0xa93fc4
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).enterPrecommit(0xc00054b500, 0x2b67, 0x0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:1098 +0xcbe fp=0xc0008ad688 sp=0xc0008ad018 pc=0xc9d26e
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).addVote(0xc00054b500, 0xc003f5e0c0, 0x0, 0x0, 0x4c75ed, 0xc0000df2c0, 0xc0022ed200)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:1646 +0xeea fp=0xc0008ada88 sp=0xc0008ad688 pc=0xca40aa
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).tryAddVote(0xc00054b500, 0xc003f5e0c0, 0x0, 0x0, 0x42ff82, 0xc000000008, 0xc0008adb80)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:1503 +0x59 fp=0xc0008adb08 sp=0xc0008ada88 pc=0xca2c99
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).handleMsg(0xc00054b500, 0x1185ea0, 0xc000f67920, 0x0, 0x0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:678 +0x696 fp=0xc0008adc28 sp=0xc0008adb08 pc=0xc97dd6
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).receiveRoutine(0xc00054b500, 0x0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:638 +0x555 fp=0xc0008adfd0 sp=0xc0008adc28 pc=0xc97585
runtime.goexit()
	/snap/go/3129/src/runtime/asm_amd64.s:1333 +0x1 fp=0xc0008adfd8 sp=0xc0008adfd0 pc=0x460d91
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).OnStart
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:327 +0x132

goroutine 1 [select (no cases), 974 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server.startInProcess(0xc00000c840, 0x10b6220, 0x1d, 0x0, 0x0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server/start.go:150 +0x639
github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server.StartCmd.func1(0xc00020ec80, 0x1bc7008, 0x0, 0x0, 0x0, 0x0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server/start.go:42 +0xab
github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra.(*Command).execute(0xc00020ec80, 0x1bc7008, 0x0, 0x0, 0xc00020ec80, 0x1bc7008)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra/command.go:762 +0x473
github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc0000fca00, 0xc00000c9e0, 0xc0004cfe90, 0x80c9cd)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra/command.go:852 +0x2fd
github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra.(*Command).Execute(0xc0000fca00, 0x80c27b, 0xc00007cc70)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra/command.go:800 +0x2b
github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/libs/cli.Executor.Execute(0xc0000fca00, 0x10b6648, 0x2, 0xc000aaa040)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/libs/cli/setup.go:89 +0x4e
main.main()
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/cmd/flipd/main.go:63 +0x1ef

goroutine 19 [syscall, 974 minutes]:
os/signal.signal_recv(0x0)
	/snap/go/3129/src/runtime/sigqueue.go:139 +0x9c
os/signal.loop()
	/snap/go/3129/src/os/signal/signal_unix.go:23 +0x22
created by os/signal.init.0
	/snap/go/3129/src/os/signal/signal_unix.go:29 +0x41

goroutine 11 [select]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util.(*BufferPool).drain(0xc000ac82a0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:206 +0x12a
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util.NewBufferPool
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:237 +0x177

goroutine 12 [select, 375 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0xc000abe9c0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go:90 +0xd3
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:142 +0x40c

goroutine 13 [select]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).mpoolDrain(0xc000abe9c0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_state.go:101 +0xe7
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:143 +0x42e

goroutine 14 [select, 375 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0xc000abe9c0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go:825 +0x242
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:149 +0x58c

goroutine 15 [select, 375 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0xc000abe9c0)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go:762 +0x12e
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:150 +0x5ae

goroutine 16 [select]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util.(*BufferPool).drain(0xc000ac8460)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:206 +0x12a
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util.NewBufferPool
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:237 +0x177

goroutine 27 [select, 172 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0xc000abf520)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go:90 +0xd3
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:142 +0x40c

goroutine 28 [select]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).mpoolDrain(0xc000abf520)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_state.go:101 +0xe7
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:143 +0x42e

goroutine 29 [select, 172 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0xc000abf520)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go:825 +0x242
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:149 +0x58c

goroutine 30 [select, 172 minutes]:
github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0xc000abf520)
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go:762 +0x12e
created by github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb.openDB
	/mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/syndtr/goleveldb/leveldb/db.go:150 +0x5ae

Convert benchmarks into stress tests scenatios

We want to run benchmarks as stress tests, also we need to have an arbitrary number of 'dead' nodes.

Stress test scenarios can be seen #6

Move Arcade to DKGLib

Fix Arcade tests (Arcade)

DKGData -> Signed message

Implement flipcoin application using CosmosSDK

related to #26

Run local cluster on an arbitrary number of nodes

At the moment a local cluster has 2 issues

• it runs only 4 nodes
• docker-compose is hardcoded

install_bls doesnt work on linux

DKG tests implementation

• Success test
• A node sends an incorrect deal
• A node hasn't sent a deal
• A node hasn't sent any deals
• A node hasn't sent a response
• A node hasn't sent any responses
• A node hasn't sent a justification
• A node sends an incorrect justification
• A node sends more than one deal
• A node sends more than one Response
• A node sends more than one justification
• A losers nodes are slashed
• A node can't fail dkg if it sends messages from further steps
• A node adds an incorrect data to NumEntities in DKGCommits
• A node sends more than one secret commit
• Messages with wrong round id
• not validator dkg messages can't fail dkg
• msgInfo with low round can't fail ConsensusState.handleDKGShare
• msgInfo with huge round can't fail ConsensusState.handleDKGShare

Select BLS go library

Check which BLS library suits us better

Post-PR Kyber refactoring

There was some after-review propositions that were cumbersome and not a dealbreaker for PR acceptance. This is an issue to deal with them

Use kyber for DKG in Tendermint

Implement running off-chain DKG after validator set updates

Rename tendermint w/dkg to Arcade

We must eventually rename this repo to Arcade; I propose to do it after the upstream review

Fix NewDKGBasic: remove hardcoded configuration (Arcade)

Cluster panics after mock-dkg PR

Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.683] Starting ABCI with Tendermint                module=main
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.713] Starting multiAppConn                        module=proxy impl=multiAppConn
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.713] Starting localClient                         module=abci-client connection=query impl=localClient
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.713] Starting localClient                         module=abci-client connection=mempool impl=localClient
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.713] Starting localClient                         module=abci-client connection=consensus impl=localClient
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.713] ABCI Handshake App Info                      module=consensus height=0 hash= software-version= protocol-version=0
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.714] ABCI Replay Blocks                           module=consensus appHeight=0 storeHeight=0 stateHeight=0
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.716] Completed ABCI Handshake - Tendermint and App are synced module=consensus appHeight=0 appHash=
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.716] Version info                                 module=node software=0.28.1 block=8 p2p=5
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: I[19036-03-19|09:39:31.716] This node is a validator                     module=consensus addr=EC1983192C1C87C83D258770A6E5C623FCFEE6F6 pubKey=PubKeyEd25519{869DF2536623E3E3ECAD083077C1A561FFCA6B75765A173A62496BC0C409FD5A}
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: load bls from /root/.nsd/config/bls_key.json
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: panic: runtime error: invalid memory address or nil pointer dereference
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0xd24776]
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: goroutine 1 [running]:
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).startDKGRound(0xc000088a80, 0x3ff0000000000000)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/dkg.go:69 +0x46
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).updateHeight(0xc000088a80, 0x1)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:459 +0x9b
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).updateToState(0xc000088a80, 0x8, 0x0, 0xc000981380, 0x6, 0xc0009813f0, 0xc, 0x0, 0x0, 0x0, ...)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:556 +0x15c
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus.NewConsensusState(0xc0000a7560, 0x8, 0x0, 0xc000981380, 0x6, 0xc0009813f0, 0xc, 0x0, 0x0, 0x0, ...)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/consensus/state.go:189 +0x58c
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/node.NewNode(0xc000101180, 0x12c8ba0, 0xc000a9ad20, 0xc00003f010, 0x12b25a0, 0xc00000ffe0, 0xc00003f250, 0x1179900, 0xc00003f260, 0x12ce5e0, ...)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/node/node.go:345 +0x2243
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server.startInProcess(0xc00000ed20, 0x117a150, 0x1d, 0x0, 0x0)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server/start.go:124 +0x4c2
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server.StartCmd.func1(0xc00018ef00, 0xc000a84a20, 0x0, 0x3, 0x0, 0x0)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/cosmos/cosmos-sdk/server/start.go:42 +0xb5
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra.(*Command).execute(0xc00018ef00, 0xc000a84990, 0x3, 0x3, 0xc00018ef00, 0xc000a84990)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra/command.go:762 +0x465
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc0000dea00, 0x2, 0xc00000ef00, 0x10288da)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra/command.go:852 +0x2ec
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra.(*Command).Execute(...)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/spf13/cobra/command.go:800
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/libs/cli.Executor.Execute(0xc0000dea00, 0x117a578, 0x2, 0xc000a86060)
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/vendor/github.com/tendermint/tendermint/libs/cli/setup.go:89 +0x3c
Mar 19 09:39:31 flipcoin-node0 flipd[17387]: main.main()
Mar 19 09:39:31 flipcoin-node0 flipd[17387]:         /mnt/sdb/go/src/github.com/dgamingfoundation/flipcoin/cmd/flipd/main.go:72 +0x244

Add bad random evidance

As it defined in types/evidence.go we should add new evidence and the handle for wrong random//BLS signature case.
Such evidence should be added to consensus/state.go tryAddVote method.

related to tendermint/tendermint#2871

Chose type of key for signing messages

Problem

We don't understand well which type of key should we use for signing dkg messages
The current implementation uses a key from the first part of dkg which is incorrect.

Acceptance Criteria

A comment here which justifies which key we should use and why.

related to:
#64
#65

Testing scenarios

Ability to create dead nodes

We need an ability to deploy dead nodes to a testing cluster for stress tests.
see #15

move bls keypair from genesis to file

Collect benchmarks from large scale testing

Block time with large number of geodistributed validators
DKG time with large number of validators
TPS with large number of geodistributed validators

StressTest/LoadTest CI

Problem

We are interested in a sort of ci which allows us to run a stress test by clicking a button.
Parameters:

• number of nodes
• number of dead nodes
• type of DO node
• DO datacenters
  and ability to run it on a custom branch of https://github.com/dgamingfoundation/tendermint

The deployed cluster should also send stats to our Prometheus node.

Implementation

TBD after discussion.

Build a simple application to demonstrate random number usage

Build a simple Tendermint ABCI application to demonstrate random number usage.

It should be a simple Flip Coin game. The game generates Heads or Tails randomly. A user tries to guess what side is generated by sending a corresponding flip-coin transaction to the application. If the user sends the value (Heads or Tails) which is the same as the guessed one, s/he wins the game.

For simplicity reasons, let's suppose that a user can flip a coin once per block only.

The simplest web ui possible

Node monitoring setup

The random number is not replayed

The random number is not loaded from the blockchain when Tendermint replays the blocks while syncing with an application

Pull upstream to Arcade

Implement epoch-style validator set updates

License for Arcade (apache 2.0)?

Default option for Arcade is Apache 2.0
Check if us using kyber is compatible

Nil or zero vote or block should be handled properly

Fast cluster deployment with key generation/distribution

On nil votes cluster panics and stops

Plug DKGLib (On-chain) into consensus

Add evidence for corrupt off-chain DKG data

flip coin use lite client

CI for Tendermint

Tendemint defualt CI fails for dcr-random. Need to fix that

Update tendermint to v0.32.2

Implement Slashing (On-chain)

Log random related data

Benchmark script for local and remote load tests

Consensus DKG: react to on-chain DKG (settle an API)

Implement switch to On-chain DKG

Save stats about last blocks in benchmarks

In terms of testing scenarios, we should check block time and stop stress testing if it's too high. Also, we need to show some data about the last blocks.

After the issue, we can make our CI with stress tests - #19

Massive testnet

At least 30 geodistributed validators, at least for a day

Add Node statistics to prometheus

Problem

We need to see basic machine statistic on a node(e.g. CPU, disk io ...)

Implementation

https://github.com/prometheus/node_exporter could be used

Acceptance Criteria

Prometheus collects CPU usage, disk io, LA, memory usage, network io

related to corestario/tendermint_fork#3