Share the same blockchain database???

[gojimgo]

Can two different programs running independent bitcoin core use the same blocks, chainstate and fee_estimates data folder?
In other words, can two computers share the same blockchain database folder?

[achow101]

No. They would end up overwriting each other and be extremely confused when something changes to the files that it didn't add. There is also a lockfile used to prevent this from happening.

[2c0de]

They can read blocks, because blocks are append-only.

Only one program can write new blocks.

But they cannot share chainstate and the other.

[Frodomaga]

you may also take a look here

http://bitcoin.stackexchange.com/questions/10723/separate-wallets-sharing-the-same-blockchain