How can you tell if your block chain is synced

Staking & Delegation Setup a Stake Pool
1

How can you tell if your block chain is synced on the relay and producer nodes

2

compare the height of the synced blockchain

cardano-cli query tip --mainnet
{
    "blockNo": 5477930,
    "headerHash": "9729d213d87ed891191687db72e037d0036e2323a9cb78d12f336e5cec1313a4",
    "slotNo": 24529931
}

with Latest Block number in the Cardano explorer

EPOCH / SLOT BLOCK CREATED AT TRANSACTIONS OUTPUT (₳) SIZE (BYTES) CREATED BY
254 / 165131 5477930 2021/03/18 19:37:02 3 251707.207573

in the example "blockNo": 5477930 is equal with BLOCK 5477930 so that means the node is in sync

2 Likes
3

from 1.26.1 the output of cardano-cli query tip --mainnet contains the actual epoch as well.

$ cardano-cli query tip --mainnet
{
    "epoch": 261,
    "hash": "81bc4dee50b6385a1d2fc235753c7af223e4ecf3bcb54633eea62d1d57d7283e",
    "slot": 27451256,
    "block": 5619862
}
4

Does that mean that whole blockchain will be downloaded twice? 1 for relay node, another for block producing node?

I think this is redundant, is there anyway to share the blockchain db for both of these nodes?

CC: @Alexd1985

5

why would you want to share the blockchain db?

6

Relay and BP are all independent computers, each keeps their own copy of the blockchain. If you want to speed up the install, let one sync and copy (scp command) the db folder to all your other nodes.