Got error: 2066: Connection failed due to wrongly configured compression algorithm #78

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opened 2026-04-05 16:15:42 +02:00 by MrUnknownDE · 0 comments
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Originally created by @mrtungdev on 3/9/2026

Databasus version

2.18.0

Operating system and architecture

Coolify

Planetscale MySQL 8.0

Describe the bug (please write manually, do not ask AI to summarize)

I am trying to back up a PlanetScale MySQL database, but the backup fails with a MySQL connection/authentication error.

What happened:
MySQL connection or authentication error. stderr: -- Connecting to aws..... mysqldump: Got error: 2066: Connection failed due to wrongly configured compression algorithm when trying to connect

What I expected:

Have you asked AI how to solve the issue?

  • Claude Sonnet 4.6 or newer
  • ChatGPT 5.4
  • No

Additional context / logs

*Originally created by @mrtungdev on 3/9/2026* ## Databasus version 2.18.0 ## Operating system and architecture Coolify ## Database type and version (optional, for DB-related bugs) Planetscale MySQL 8.0 ## Describe the bug (please write manually, do not ask AI to summarize) I am trying to back up a PlanetScale MySQL database, but the backup fails with a MySQL connection/authentication error. **What happened:** MySQL connection or authentication error. stderr: -- Connecting to aws..... mysqldump: Got error: 2066: Connection failed due to wrongly configured compression algorithm when trying to connect **What I expected:** ## Have you asked AI how to solve the issue? <!-- Using AI to diagnose issues before filing a bug report helps narrow down root causes. --> - [ ] Claude Sonnet 4.6 or newer - [x] ChatGPT 5.4 - [ ] No ## Additional context / logs <!-- Screenshots, error messages, relevant log output, etc. -->
MrUnknownDE added the bugbugbugbugbugbugbugbugbugbugbugbugbugbugbugbug labels 2026-04-05 16:15:42 +02:00
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Reference: github/databasus#78