Kafka cluster username may not be longer than 96 characters

[kocic11]

Code of Conduct

• I agree to follow this project's Code of Conduct

On what operating system are you seeing the problem?

macOS (Apple/arm64)

VS Code version

Version: 1.110.0-insider
Commit: 404102fc70f6f15e1aba226b6d56f4c75bd5fa4e
Date: 2026-02-26T17:40:44.245Z
Electron: 39.6.1
ElectronBuildId: 13369494
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.3.0

Version of Confluent extension

2.2.0

To Reproduce

Create a new connection and enter username longer than 96 characters.

Current vs. Expected behavior

Expected to be able to create a new connection.

Relevant log output

x Failed to test connection. {"status":"400","code":"invalid_input","title":"Invalid input","id":"705e985b-db7a-4b60-b742-5e1804d66142","errors":[{"detail":"Kafka cluster username may not be longer than 96 characters","source":"kafka_cluster.credentials.username"}]}

Which area(s) are affected? (Select all that apply)

Connections

Additional context

Issue happens all the time.

The username is long because the Oracle Cloud Streaming appends a pool id to the user name.

[leeec1993]

Hi Aleksandar Kocic (@kocic11), thanks for bringing this to our attention.

I’m the Product Manager for the Confluent VS Code extension. I want to confirm I have the right understanding here: it sounds like our current 96-character limit on the Kafka username field is blocking Oracle Cloud Streaming users, as usernames require a concatenation of Tenancy/Identity/User/StreamPoolOCID.

To support Oracle Cloud Streaming and similar providers, we can consider expanding this limit (likely to 256 characters).

This is based off character length estimates that totals ~250 characters

• Tenancy- 25
• Identity Provider- 26
• User/Email- 100
• OCID- 95
• Delimiters- 3

Does this sound like it would fully resolve the bottleneck you're seeing?

[kocic11]

Hi there, Yes, that should suffice for now. Thanks!

…

On Sun, Mar 1, 2026 at 12:50 PM Erick Lee ***@***.***> wrote: *leeec1993* left a comment (confluentinc/vscode#3306) <#3306 (comment)> Hi Aleksandar Kocic ***@***.***) <https://github.com/kocic11>, thanks for bringing this to our attention. I’m the Product Manager for the Confluent VS Code extension. I want to confirm I have the right understanding here: it sounds like our current 96-character limit on the Kafka username field is blocking Oracle Cloud Streaming users, as usernames require a concatenation of Tenancy/Identity/User/StreamPoolOCID. To support Oracle Cloud Streaming and similar providers, we can consider expanding this limit (likely to 256 characters). This is based off character length estimates that totals ~250 characters - Tenancy- 25 - Identity Provider- 26 - User/Email- 100 - OCID- 95 - Delimiters- 3 Does this sound like it would fully resolve the bottleneck you're seeing? — Reply to this email directly, view it on GitHub <#3306 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGA56TWPIMABJU2BYH2GS5T4ORZ7PAVCNFSM6AAAAACWBHWWKKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTSOBQGYYTKMZXGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>