Let sync node accept and broadcast transactions

[kladkogex]

If a sync node accepts transactions and broadcasts them to the core 16 nodes, this can
significantly help performance, since transaction broadcast is one of our bottlenecks.

We need to to do two things:

1. Accept transactions on the sync node and broadcast them to the core nodes.

2. Open up firewall ports on the core nodes for the sync node, so it can do the broadcast

Tasks

Beta Give feedback

1. Sync node doesn't broadcasts transactions when moved them from future tx queue into current tx queue #1774
   bug +1
   

[DmytroNazarenko]

What about oracle requests? Should we allow them?

[gannakulikova]

@DmytroNazarenko please update specification according to the changes you are going to make https://github.com/skalenetwork/internal-support/blob/main/docs/specifications/nodes/fullsync-node/fullsync-node-spec.md

[gannakulikova]

• would be good to look at the Polkadot system

[gannakulikova]

Need to review broadcast and DoS protection together with @kladkogex

[DmytroNazarenko]

skaled: 3.18.0-beta.0

[oleksandrSydorenkoJ]

Verified on regression Network
skaled: 3.18.0-beta.0
Skale chain: playful-joyful-angetenar
sync-node: http://34.218.236.149:10195

ubuntu@sync-node: cat .skale/node_data/schains/playful-joyful-angetenar/schain_playful-joyful-angetenar.json | grep  "multiTransactionMode"
 "multiTransactionMode": true,


2024-01-31 16:04:52.216399   http://localhost:33398 >>> {"id":22743,"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":["0xf9010e826925830186a083030d4094adf0cab6023ddf1814b3778c223fb0d2..."]}
2024-01-31 16:04:52.216801   Queued vaguely legit-looking transaction #64dfadad…
2024-01-31 16:04:52.216894   http://localhost:33398 <<< {"id":22743,"jsonrpc":"2.0","result":"0x64dfadadd5b29b22c6e4b23225bfa4a4dd21aa18f3adb4eb61e2a0b6515a1055"}

2024-01-31 16:04:53.757183   http://localhost:41224 >>> {"id":13,"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0x64dfadadd5b29b22c6e4b23225bfa4a4dd21aa18f3adb4eb61e2a0b6515a1055"]}
2024-01-31 16:04:53.757748   http://localhost:41224 <<< {"id":13,"jsonrpc":"2.0","result":{"blockHash":"0x3c6ee7b3019949e6fc255dd4ed53228e2707f1dd7517eaba0734858c3aebe65d","blockNumber":"0xfcbe","contractAddress":null,"cumulativeGasUsed":"0x67deaa","from":"0x2d93455b07bccf38e8d019f7f43a2c2d70b46b4e","gasUsed":"0x18162","logs":[{"address":"0xadf0cab6023ddf1814b3778c223fb0d2be25dc72","blockHash":"0x3c6ee7b3019949e6fc255dd4ed53228e2707f1dd7517eaba0734858c3aebe65d","blockNumber":"0xfcbe","data":"0x000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000","logIndex":"0x0","polarity":false,"topics":["0xcd6e659e4c2e75c3bfe47fecaccf39aeb368116a0ee52afb532e07f6cba6c0d1","0x0000000000000000000000002d93455b07bccf38e8d019f7f43a2c2d70b46b4e","0x00000000000000000000000054e228d8fea148cfe2b109b3b152ff21321d09a2"],"transactionHash":"0x64dfadadd5b29b22c6e4b23225bfa4a4dd21aa18f3adb4eb61e2a0b6515a1055","transactionIndex":"0x44","type":"mined"}],"logsBloom":"0x00000000001000000000000000000000000000000000000000000000000000000000020002001000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000008000001000000200000000000000000000000000000000000000000000000000000000","status":"0x1","to":"0xadf0cab6023ddf1814b3778c223fb0d2be25dc72","transactionHash":"0x64dfadadd5b29b22c6e4b23225bfa4a4dd21aa18f3adb4eb61e2a0b6515a1055","transactionIndex":"0x44"}}