Running multiple nodes with the same account address for HA

[marcmacmac]

Background:

• For a HA setup, where tx are signed on the node, we want to run several nodes with the same account address.
• sys info

Semantic version: v0.21.5-mocha
Commit: 4bdd1db6cc26b3b8022c199ba8e39f6483cba8e9
Build Date: Fri Feb 21 16:58:42 UTC 2025
System version: amd64/linux
Golang version: go1.23.6

Observation for 3 restarted and synced nodes:

• only the node that processed the first tx can process further tx
• the other nodes quit new tx submissions with

{
  "result": "broadcast tx error: "
}

• once I restart the "broken" nodes, I can send a tx and "disable" the other nodes with it.

Expected behaviour:
No matter to which node a tx is sent, it gets processed

[Wondertan]

For this to work node needs to listen to nounce state changes. This should be possible.

• What do you use node for? Reading blobs, writing blobs or both?
• Do you experience any particular crashes or issues that forces you to go with multiple node HA setup? Or do you follow HA best practices in case issues arise?

[marcmacmac]

Thanks for your quick reply @Wondertan,

What do you use node for? Reading blobs, writing blobs or both?

Both.

Do you experience any particular crashes or issues that forces you to go with multiple node HA setup? Or do you follow HA best practices in case issues arise?

No incidences at all, just HA aspirations.

So currently it is not possible and might become a feature request for a future release?