cannot restart a cluster if license key is invalid

[hzxa21]

Describe the bug

Compute node will fail to start up if license key is invalid:

2024-09-04T13:56:29.941094867+08:00 ERROR risingwave_rpc_client::meta_client: failed to register worker, exiting... error=failed to add worker node: gRPC request to meta service failed: Internal error: cannot check CPU core limit due to license key error: invalid license key: InvalidToken

Error message/log

No response

To Reproduce

• ./risedev d full

• psql -h localhost -p 4566 -d dev -U root
  Run in SQL:

ALTER SYSTEM SET license_key TO 'invalid';

• ./risedev k
• ./risedev d full

Expected behavior

No response

How did you deploy RisingWave?

No response

The version of RisingWave

No response

Additional context

No response

[hzxa21]

@BugenZhao Is this a bug or a feature

[BugenZhao]

This is indeed a problem. But I suppose the frontend is still functional and users should be able to update their license key and fix that.

From another perspective, setting an invalid key should be a rare occurrence, unless the user fails to renew their license key on time. In this case, all paid features will no longer work and may even lead to recovery loop, so it is expected that the user will update it as soon as possible.