Azure Database for MySQL
An Azure managed MySQL database service for app development and deployment.
986 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(188.79999999999998, 4%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
It may be the issue that https://github.com/prisma/prisma/issues/16886.
App service cannot connect to database: ERROR 08S01 (1043): Bad handshake
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(230.39999999999998, 59%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMD%3C/text%3E%3C/svg%3E)
Marc de Jong
20
Reputation points
Our app service is suddenly not able to connect to the database anymore.
App service gives the following log:
2023-02-11T12:05:43.842683709Z throw new PrismaClientInitializationError(error2.message, this.config.clientVersion, error2.error_code);
2023-02-11T12:05:43.842690510Z ^
2023-02-11T12:05:43.846452593Z Error: Error querying the database: Server error: `ERROR 08S01 (1043): Bad handshake'
I've tried restarting everything, but to no avail
Anyone got suggestions on what to do?
Azure Database for MySQL
Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
8,930 questions
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Ryan Hill 30,281 Reputation points Microsoft Employee Moderator2023-02-14T02:31:53.73+00:00 @Marc de Jong I see that you've engaged in a support request. The error message does seem more on the MySQL side of things but, one thing I could think is if you were using ODBC connection and your app service (plan) underwent a recent upgrade.
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Guillaume 0 Reputation points2023-02-15T17:44:56.49+00:00 Same here,
Everything was working fine this morning on MYSQL v8.0.29 after the maintenance updating to MySQL v8.0.31,
I was suddenly, without changing the code or some settings, not able to connect to my database locally and from my production server... I spent my day with support ! Raise your hand if you experiment the same problem it will help-
Guillaume 0 Reputation points
2023-02-15T17:53:44.6966667+00:00 Release notes of MySQL 8.0.30 https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-30.html
Important Change: For platforms on which OpenSSL libraries are bundled, the linked OpenSSL library for MySQL Server has been updated to version 1.1.1o. Issues fixed in OpenSSL version 1.1.1o are described at https://www.openssl.org/news/cl111.txt and https://www.openssl.org/news/vulnerabilities.html. (Bug #34133985)
Release notes of MySQL 8.0.31 https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-31.html
Important Change: For platforms on which OpenSSL libraries are bundled, the linked OpenSSL library for MySQL Server has been updated to version 1.1.1q. Issues fixed in OpenSSL version 1.1.1q are described at https://www.openssl.org/news/cl111.txt and https://www.openssl.org/news/vulnerabilities.html. (Bug #34414695)
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