DevNet validator-app 0.9.0 fails at startup: "No serial provided" from dso-sequencers → ConsensusNotReached

Hi all,

We’re upgrading our DevNet validator from Splice 0.8.4 to 0.9.0 and the validator app won’t start.

What we’re seeing

• Participant 0.9.0 upgraded fine and is healthy.
• validator-app 0.9.0 keeps failing at startup when it fetches /api/scan/v0/dso-sequencers.
• The Scan HTTP requests return 200 OK, but validator-app rejects most of the responses with:

  UNAVAILABLE: No serial provided

• The BFT lookup then fails:

  Bft call with 5 out of 9 matching responses
  ConsensusNotReached

• /api/validator/readyz stays at 503.

What we’ve tried

• Rolling validator-app back to 0.8.4 fixes it right away, and /api/validator/readyz returns 200. We’re staying on 0.8.4 for now.

Questions

1. Is this expected on DevNet while 0.9.0 is still rolling out, for example because not all SVs have upgraded their Scan yet?
2. If not, is there a prerequisite or config change we need before upgrading validator-app to 0.9.0 that isn’t in the release notes?

Environment

• Network: DevNet
• Participant: 0.9.0
• validator-app: 0.9.0 (failing), 0.8.4 (working)
• Deployment: [Helm / Docker Compose]

Its probably was a bit too early to run upgrade to v0.9.0
SV readiness was reported like 10+ hrs after your post
Have you tried it again by now?

could have been for sure as the issue has been fixed