bitshares研究系列【私链运行】
一直在公链上玩肯定是不合适的，也不是见证人，也不是董事会成员，各种操作都要花钱，要想更多的了解bitshares，避免不了要自己搭建私链，这样就可以为所欲为了！
私链运行
bitshares私链运行：
./witness_node --rpc-endpoint "127.0.0.1:8090" --enable-stale-production --seed-nodes "[]"
在cli_wallet中也可以取一些数据，但是有一些操作却报时间相关异常：
Assert Exception: o.expiration_time <= d.head_block_time() + global_parameters.maximum_proposal_lifetime: Proposal expiration time is too far in the future.
好歹我的VS Code也已经跑起来了，可以调试还有什么不能解决的吗？
void_result proposal_create_evaluator::do_evaluate(const proposal_create_operation& o)
{ try {
const database& d = db();
const auto& global_parameters = d.get_global_properties().parameters;
FC_ASSERT( o.expiration_time > d.head_block_time(), "Proposal has already expired on creation." );
FC_ASSERT( o.expiration_time <= d.head_block_time() + global_parameters.maximum_proposal_lifetime,
"Proposal expiration time is too far in the future.");
...
}
}
找到提示错误的语句，加上断点，还没仔细看时间变量，取d.head_block_time中哪个变量晃了我一眼，blocknum=0，看起来根本没有生成新块啊！！！
记得在bitshares研究系列【bitshares-ui代码分析之api】这篇文章中说过，订阅消息后只要取了对象就会有订阅通知，再试一下：
Chaim:~ Chaim$ wscat -c ws://127.0.0.1:8090
connected (press CTRL+C to quit)
> {"method": "call", "params": [1, "login", ["", ""]], "id": 2}
< {"id":2,"jsonrpc":"2.0","result":true}
> {"method": "call", "params": [1, "database", []], "id": 3}
< {"id":3,"jsonrpc":"2.0","result":2}
> {"method": "call", "params": [2, "set_subscribe_callback", [5, false]], "id": 4}
< {"id":4,"jsonrpc":"2.0","result":null}
> {"method": "call", "params": [2, "get_objects", [["2.1.0"]]], "id": 5}
< {"id":5,"jsonrpc":"2.0","result":[{"id":"2.1.0","head_block_number":0,"head_block_id":"0000000000000000000000000000000000000000","time":"2018-04-27T11:02:35","current_witness":"1.6.0","next_maintenance_time":"1970-01-01T00:00:00","last_budget_time":"1970-01-01T00:00:00","witness_budget":0,"accounts_registered_this_interval":12,"recently_missed_count":0,"current_aslot":0,"recent_slots_filled":"340282366920938463463374607431768211455","dynamic_flags":0,"last_irreversible_block_num":0}]}
这次果真没有订阅通知了，因为根本就没有新块！
私链配置
建立genesis.json
Chaim:witness_node Chaim$ ./witness_node --create-genesis-json genesis.json
924289ms th_a main.cpp:134 create_new_config_fi ] Writing new config file at /Users/Chaim/Documents/workspace/bitshares-core/build/programs/witness_node/witness_node_data_dir/config.ini
Creating example genesis state in file genesis.json
这个genesis.json在bitshares研究系列【operation fee】这篇文章中已有所介绍，通过genesis.json还可以修改资产初始配置、链初始参数、见证人、董事会等参数。
链ID是gensis的哈希值，所以旦这个文件被修改链ID也会改变，而只有相同的链ID节点才有可能同步。
建立数据目录
Chaim:witness_node Chaim$ ./witness_node --genesis-json genesis.json --seed-nodes "[]"
1269852ms th_a witness.cpp:87 plugin_initialize ] witness plugin: plugin_initialize() begin
1269854ms th_a witness.cpp:97 plugin_initialize ] Public Key: BTS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
1269855ms th_a witness.cpp:115 plugin_initialize ] witness plugin: plugin_initialize() end
1269855ms th_a db_management.cpp:153 open ] Wiping object_database due to missing or wrong version
1269855ms th_a object_database.cpp:93 wipe ] Wiping object database...
1269855ms th_a object_database.cpp:95 wipe ] Done wiping object databse.
1269855ms th_a object_database.cpp:106 open ] Opening object database from /Users/Chaim/Documents/workspace/bitshares-core/build/programs/witness_node/witness_node_data_dir/blockchain ...
1269856ms th_a object_database.cpp:111 open ] Done opening object database.
1269857ms th_a application.cpp:330 operator() ] Initializing database...
1269907ms th_a db_debug.cpp:88 debug_dump ] total_balances[asset_id_type()].value: 0 core_asset_data.current_supply.value: 1000000000000000
1269915ms th_a application.cpp:205 reset_p2p_node ] Configured p2p node to listen on 0.0.0.0:53381
1269920ms th_a witness.cpp:120 plugin_startup ] witness plugin: plugin_startup() begin
1269920ms th_a witness.cpp:135 plugin_startup ] No witnesses configured! Please add witness IDs and private keys to configuration.
1269920ms th_a witness.cpp:136 plugin_startup ] witness plugin: plugin_startup() end
1269920ms th_a main.cpp:266 main ] Started BitShares node on a chain with 0 blocks.
1269920ms th_a main.cpp:267 main ] Chain ID is daa4773ef922acf907828b63c308eda9b0ee6d59133d890cac50e0d40f2b259d
这种情况下启动的链是没有新块产生的，提示里也有说明要进行节点配置。
节点配置
修改config.ini，如下：
p2p-endpoint = 127.0.0.1:11010
rpc-endpoint = 127.0.0.1:11011
genesis-json = genesis/my-genesis.json
private-key = ["GPH6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV","5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3"]
witness-id = "1.6.1"
witness-id = "1.6.2"
witness-id = "1.6.3"
witness-id = "1.6.4"
witness-id = "1.6.5"
witness-id = "1.6.6"
witness-id = "1.6.7"
witness-id = "1.6.8"
witness-id = "1.6.9"
witness-id = "1.6.10"
witness-id = "1.6.11"
运行：
Chaim:witness_node Chaim$ ./witness_node --data-dir=witness_node_data_dir --enable-stale-production --seed-nodes "[]"
3175715ms th_a main.cpp:120 load_config_file ] Error parsing logging config from config file /Users/Chaim/Documents/workspace/bitshares-core/build/programs/witness_node/witness_node_data_dir/config.ini, using default config
3175715ms th_a witness.cpp:87 plugin_initialize ] witness plugin: plugin_initialize() begin
3175715ms th_a witness.cpp:97 plugin_initialize ] Public Key: BTS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
3175716ms th_a witness.cpp:115 plugin_initialize ] witness plugin: plugin_initialize() end
3175716ms th_a object_database.cpp:106 open ] Opening object database from /Users/Chaim/Documents/workspace/bitshares-core/build/programs/witness_node/witness_node_data_dir/blockchain ...
3175752ms th_a object_database.cpp:111 open ] Done opening object database.
3175755ms th_a application.cpp:205 reset_p2p_node ] Configured p2p node to listen on 127.0.0.1:11010
3175755ms th_a application.cpp:282 reset_websocket_serv ] Configured websocket rpc to listen on 127.0.0.1:11011
3175760ms th_a witness.cpp:120 plugin_startup ] witness plugin: plugin_startup() begin
3175760ms th_a witness.cpp:125 plugin_startup ] Launching block production for 11 witnesses.
********************************
* *
* ------- NEW CHAIN ------ *
* - Welcome to Graphene! - *
* ------------------------ *
* *
********************************
Your genesis seems to have an old timestamp
Please consider using the --genesis-timestamp option to give your genesis a recent timestamp
3175760ms th_a witness.cpp:136 plugin_startup ] witness plugin: plugin_startup() end
3175760ms th_a main.cpp:266 main ] Started BitShares node on a chain with 0 blocks.
3175761ms th_a main.cpp:267 main ] Chain ID is daa4773ef922acf907828b63c308eda9b0ee6d59133d890cac50e0d40f2b259d
3176002ms th_a witness.cpp:197 block_production_loo ] Not producing block because node didn't wake up within 500ms of the slot time.
3177000ms th_a witness.cpp:197 block_production_loo ] Not producing block because node didn't wake up within 500ms of the slot time.
3178005ms th_a witness.cpp:197 block_production_loo ] Not producing block because node didn't wake up within 500ms of the slot time.
3179000ms th_a witness.cpp:197 block_production_loo ] Not producing block because node didn't wake up within 500ms of the slot time.
3180012ms th_a witness.cpp:181 block_production_loo ] Generated block #1 with timestamp 2018-04-28T07:53:00 at time 2018-04-28T07:53:00
3200006ms th_a witness.cpp:181 block_production_loo ] Generated block #2 with timestamp 2018-04-28T07:53:20 at time 2018-04-28T07:53:20
3205001ms th_a witness.cpp:181 block_production_loo ] Generated block #3 with timestamp 2018-04-28T07:53:25 at time 2018-04-28T07:53:25
3210006ms th_a witness.cpp:181 block_production_loo ] Generated block #4 with timestamp 2018-04-28T07:53:30 at time 2018-04-28T07:53:30
3215002ms th_a witness.cpp:181 block_production_loo ] Generated block #5 with timestamp 2018-04-28T07:53:35 at time 2018-04-28T07:53:35
成功看到“NEW CHAIN”标志了，也可以产生新块了！
至于出现的“Not producing block because node didn't wake up within 500ms of the slot time.”的错误，也可以在代码中找一下：
if( llabs((scheduled_time - now).count()) > fc::milliseconds( 500 ).count() )
{
capture("scheduled_time", scheduled_time)("now", now);
return block_production_condition::lag;
}
看起来这个只是时间引起的一个错误，正常了应该就没问题了！
cli_wallet
bitshares研究系列【初识cli_wallet】
这篇文章已经说过cli_wallet基本使用了，连上去看看：
Chaim:cli_wallet Chaim$ ./cli_wallet --server-rpc-endpoint=ws://127.0.0.1:11011 --chain-id daa4773ef922acf907828b63c308eda9b0ee6d59133d890cac50e0d40f2b259d
Logging RPC to file: logs/rpc/rpc.log
654017ms th_a main.cpp:136 main ] key_to_wif( committee_private_key ): 5KCBDTcyDqzsqehcb52tW5nU6pXife6V2rX9Yf7c3saYSzbDZ5W
654018ms th_a main.cpp:140 main ] nathan_pub_key: BTS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
654018ms th_a main.cpp:141 main ] key_to_wif( nathan_private_key ): 5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3
Chain ID in wallet file does not match specified chain ID
又报这个错误，轻车熟路了，把wallet.json删除，重新运行：
Chaim:cli_wallet Chaim$ rm wallet.json
Chaim:cli_wallet Chaim$ ./cli_wallet --server-rpc-endpoint=ws://127.0.0.1:11011 --chain-id daa4773ef922acf907828b63c308eda9b0ee6d59133d890cac50e0d40f2b259d
Logging RPC to file: logs/rpc/rpc.log
960419ms th_a main.cpp:136 main ] key_to_wif( committee_private_key ): 5KCBDTcyDqzsqehcb52tW5nU6pXife6V2rX9Yf7c3saYSzbDZ5W
960420ms th_a main.cpp:140 main ] nathan_pub_key: BTS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
960420ms th_a main.cpp:141 main ] key_to_wif( nathan_private_key ): 5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3
Starting a new wallet with chain ID daa4773ef922acf907828b63c308eda9b0ee6d59133d890cac50e0d40f2b259d (from CLI)
960420ms th_a main.cpp:188 main ] wdata.ws_server: ws://127.0.0.1:11011
960422ms th_a main.cpp:193 main ] wdata.ws_user: wdata.ws_password:
Please use the set_password method to initialize a new wallet before continuing
可以在这个私链上随意工作了！
cli_wallet命令
以下测试了一些命令，全拷贝上来凑字数吗？真不是，这个结果可能某些时候需要看一下，例如看看operation的执行数据格式。反正我现在有Bandwidth，哈哈！
suggest_brain_key
unlocked >>> suggest_brain_key
suggest_brain_key
{
"brain_priv_key": "CRIPPLY COTYPE FENSIVE DRONA REVOKER UNWHEEL PLEROME KANGA EXPOSER COTYPE CHALLIE ACIFORM SCOPATE BEVER GLASS UPBROOK",
"wif_priv_key": "5JPiy3voZD1qSgZsBPZCczyEkmKQvZ4DE9MLxfxfEthbpe83ELX",
"pub_key": "BTS5g2awh79XezJE7VaKvyjVPK5FVaFCxnDnJyGTFU186q36xG2Qq"
}
create_account_with_brain_key
unlocked >>> create_account_with_brain_key "CRIPPLY COTYPE FENSIVE DRONA REVOKER UNWHEEL PLEROME KANGA EXPOSER COTYPE CHALLIE ACIFORM SCOPATE BEVER GLASS UPBROOK" barnard nathan nathan true
create_account_with_brain_key "CRIPPLY COTYPE FENSIVE DRONA REVOKER UNWHEEL PLEROME KANGA EXPOSER COTYPE CHALLIE ACIFORM SCOPATE BEVER GLASS UPBROOK" barnard nathan nathan true
1754278ms th_a wallet.cpp:779 save_wallet_file ] saving wallet to file wallet.json
{
"ref_block_num": 432,
"ref_block_prefix": 4191092752,
"expiration": "2018-04-28T08:29:40",
"operations": [[
5,{
"fee": {
"amount": 200014257,
"asset_id": "1.3.0"
},
"registrar": "1.2.17",
"referrer": "1.2.17",
"referrer_percent": 0,
"name": "barnard",
"owner": {
"weight_threshold": 1,
"account_auths": [],
"key_auths": [[
"BTS5g2awh79XezJE7VaKvyjVPK5FVaFCxnDnJyGTFU186q36xG2Qq",
1
]
],
"address_auths": []
},
"active": {
"weight_threshold": 1,
"account_auths": [],
"key_auths": [[
"BTS6fD2trehbSEch3F15h5EyUi7m7KqKoqPdKuLuK5J6TMkqJ458b",
1
]
],
"address_auths": []
},
"options": {
"memo_key": "BTS6mPfuvmZjShy5Bfco17ASkDkT5pfQ375WNy8YLCnsRfEnjDous",
"voting_account": "1.2.5",
"num_witness": 0,
"num_committee": 0,
"votes": [],
"extensions": []
},
"extensions": {}
}
]
],
"extensions": [],
"signatures": [
"20142736d9b1e432671767dc27609f4a5ae82a02d59fd49645f1dc313a4dc9b8863fdac49d7578e3ae1b4d7e83e849b1505d48b3546e617622550e3300937d93e9"
]
}
transfer
unlocked >>> transfer nathan barnard 2000000000 BTS "here is some cash" true
transfer nathan barnard 2000000000 BTS "here is some cash" true
{
"ref_block_num": 440,
"ref_block_prefix": 3279184194,
"expiration": "2018-04-28T08:30:20",
"operations": [[
0,{
"fee": {
"amount": 2105468,
"asset_id": "1.3.0"
},
"from": "1.2.17",
"to": "1.2.18",
"amount": {
"amount": "200000000000000",
"asset_id": "1.3.0"
},
"memo": {
"from": "BTS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV",
"to": "BTS6mPfuvmZjShy5Bfco17ASkDkT5pfQ375WNy8YLCnsRfEnjDous",
"nonce": "17223289879256757094",
"message": "eda186d271f055543997859aa2b70463d9c2712dee9a3ed49f47a788e449463f"
},
"extensions": []
}
]
],
"extensions": [],
"signatures": [
"20176d7d2d2256dfd8ce273fe5bc94077355bee3f575e6f56a132cc74ade761ffa7d2955bdfcd27cb3c0b78e55811fea9adbc41067af33f6fda7710bb89e3be1a6"
]
}
list_account_balances
unlocked >>> list_account_balances barnard
list_account_balances barnard
2000000000 BTS
upgrade_account
unlocked >>> upgrade_account barnard true
upgrade_account barnard true
{
"ref_block_num": 593,
"ref_block_prefix": 1425737919,
"expiration": "2018-04-28T08:43:05",
"operations": [[
8,{
"fee": {
"amount": 1000000000,
"asset_id": "1.3.0"
},
"account_to_upgrade": "1.2.18",
"upgrade_to_lifetime_member": true,
"extensions": []
}
]
],
"extensions": [],
"signatures": [
"1f38d3171583fab9bb2c60447c4ddc3fd5a87e93acd96b320f4b0d3eab0cc2334e5719be169931395a72ac9d16cc825bc3749b0e5c73987bdec2a7c19b39a7798a"
]
}
create_witness
unlocked >>> create_witness barnard "http://www.barnard" true
create_witness barnard "http://www.barnard" true
{
"ref_block_num": 659,
"ref_block_prefix": 1089995618,
"expiration": "2018-04-28T08:48:35",
"operations": [[
20,{
"fee": {
"amount": 500000000,
"asset_id": "1.3.0"
},
"witness_account": "1.2.18",
"url": "http://www.barnard",
"block_signing_key": "BTS57DnkAgDKRL8CirBjc9PN83HLXrjxKwPHKVeFEpSceK1YdkLy6"
}
]
],
"extensions": [],
"signatures": [
"1f1c5d26af98fe99359e36cb9aac5fa6f3e01d6758142df29f29d04963dd344c9e6339048f8c52477c9f22273b2d1236681e8c8f895245e3e640f4b4836008f73e"
]
}
create_account_with_brain_key
unlocked >>> create_account_with_brain_key com0 com0 nathan nathan true
create_account_with_brain_key com0 com0 nathan nathan true
2345645ms th_a wallet.cpp:779 save_wallet_file ] saving wallet to file wallet.json
{
"ref_block_num": 551,
"ref_block_prefix": 2502641622,
"expiration": "2018-04-28T08:39:35",
"operations": [[
5,{
"fee": {
"amount": 513964,
"asset_id": "1.3.0"
},
"registrar": "1.2.17",
"referrer": "1.2.17",
"referrer_percent": 0,
"name": "com0",
"owner": {
"weight_threshold": 1,
"account_auths": [],
"key_auths": [[
"BTS5ZYQtrYUPk5ELqJfygsJHnTJ9wDQmFZK4UXH8d6Txqsjg9MdBc",
1
]
],
"address_auths": []
},
"active": {
"weight_threshold": 1,
"account_auths": [],
"key_auths": [[
"BTS5arjFbgDWrqxhuqvvUGpLFCguse3ebKVC4XGcjUnDgdtNT22Dd",
1
]
],
"address_auths": []
},
"options": {
"memo_key": "BTS67M2hU4tdqD53DdiUxsNaPrRehq3q8zvgVuwfVy1umu7EDqQLU",
"voting_account": "1.2.5",
"num_witness": 0,
"num_committee": 0,
"votes": [],
"extensions": []
},
"extensions": {}
}
]
],
"extensions": [],
"signatures": [
"20497e2ad20dee2ec1fbb324f434640e290d787dd27ee9f1113e87235ed1920c4b1a7e2469185a11965dcc735a2f0154292d2adf652617a447fa867f93313d86e3"
]
}
create_committee_member
unlocked >>> create_committee_member barnard "http://www.barnard" true
create_committee_member barnard "http://www.barnard" true
{
"ref_block_num": 707,
"ref_block_prefix": 2667516363,
"expiration": "2018-04-28T08:52:35",
"operations": [[
29,{
"fee": {
"amount": 500000000,
"asset_id": "1.3.0"
},
"committee_member_account": "1.2.18",
"url": "http://www.barnard"
}
]
],
"extensions": [],
"signatures": [
"20378c07b19451f0a035f1f6400de8c2cbec7d839d12213ae8c38580bdff62a71241d52e1b4a9a2c0fc3b83c10cb74e6323a431ca9219b62475cae7a3aa4e7ea05"
]
}
vote_for_committee_member
unlocked >>> vote_for_committee_member nathan barnard true true
vote_for_committee_member nathan barnard true true
{
"ref_block_num": 716,
"ref_block_prefix": 2382867450,
"expiration": "2018-04-28T08:53:20",
"operations": [[
6,{
"fee": {
"amount": 2005664,
"asset_id": "1.3.0"
},
"account": "1.2.17",
"new_options": {
"memo_key": "BTS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV",
"voting_account": "1.2.5",
"num_witness": 0,
"num_committee": 0,
"votes": [
"0:23"
],
"extensions": []
},
"extensions": {}
}
]
],
"extensions": [],
"signatures": [
"201db36fb4f2726df7f201d281961bac510e952adc0e63246431b9426d9eb0a522618e9cb56f3ce6a38103492808f1a8f30743fb4bc11e0aa2c5750c1c4ece849c"
]
}
结论
私链开始运行时，可能已经存在数据目录，导致一些问题。另外指定参数 --seed-nodes "[]" 禁止了连接其它节点，导致也无法更新块！
如果碰到一些莫明其妙的错误，建议把数据目录删掉重来！
同样的道理，我们编译一些代码时也有类似的问题，实在整不明白了，重新建个目录重新下代码重新走一遍流程也是个好方法！
参考
https://github.com/bitshares/bitshares-core/wiki/private-testnet
http://docs.bitshares.org/testnet/private-testnet.html
http://docs.bitshares.org/testnet/3-init-blockchain.html
感谢您阅读 @chaimyu 的帖子，期待您能留言交流！
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