Common SQL Errors

MySQL Error 59: EE_SSL_ERROR_FROM_FILE - How to Fix and Prevent

Galaxy Team
August 5, 2025

Error 59 EE_SSL_ERROR_FROM_FILE appears when MySQL cannot read or validate an SSL certificate, key, or CA file specified in configuration or a statement.

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What is MySQL error 59 EE_SSL_ERROR_FROM_FILE?

MySQL Error 59 EE_SSL_ERROR_FROM_FILE means the server failed to load the SSL certificate, key, or CA file referenced by your configuration or CREATE USER ... REQUIRE SSL clause. Check file path, permissions, and certificate format, then restart the server with valid SSL files to resolve the issue.

Error Highlights

Typical Error Message

SSL error: %s from '%s'. EE_SSL_ERROR_FROM_FILE was added in 8.0.13.

Error Type

Connection Error

Language

MySQL

Symbol

EE_SSL_ERROR_FROM_FILE

Error Code

59

SQL State

Explanation

Table of Contents

What does MySQL Error 59 EE_SSL_ERROR_FROM_FILE mean?

The server reports EE_SSL_ERROR_FROM_FILE when it tries to initialize TLS but encounters a problem loading a certificate, private key, or CA file. The placeholder values in the message show the exact OpenSSL error and the file that triggered it.

The condition was introduced in MySQL 8.0.13. It appears during server startup, SET PERSIST ssl_xxx variables, or any statement that forces TLS validation, such as CREATE USER ...

REQUIRE SSL.

Why is fixing it critical?

When TLS fails, the server either refuses to start or falls back to unencrypted connections, exposing data in transit. Production environments that enforce REQUIRE SSL clauses will block all clients until the certificates load correctly.

When is the error most common?

Admins typically see it after rotating certificates, migrating to a new host, changing my.cnf paths, or upgrading to a version that tightens certificate parsing rules.

.

Common Causes

Incorrect file path

my.cnf points to a non-existent or misspelled certificate, key, or CA bundle.

Wrong file permissions

mysqld lacks read permission on the certificate or key, especially when files are owned by root and mysqld runs as mysql.

Mismatched certificate and key

The private key does not match the public certificate, causing OpenSSL to abort the handshake during initialization.

Unsupported file format

Files are in DER or PFX format instead of PEM, or include an encrypted key without a passphrase loader.

Corrupted certificate

The certificate was truncated during transfer or contains invalid ASCII characters.

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Related Errors

FAQs

Does this error only occur on the server side?

Yes. Error 59 is generated by the MySQL server during SSL initialization, not by the client library.

Will MySQL start without SSL if this error occurs?

By default MySQL exits with a fatal error. Setting --ssl=OFF lets it start insecurely, but this is not recommended for production.

Can I reload certificates without downtime?

Yes. From 8.0.16 you can run ALTER INSTANCE RELOAD TLS to reload certificates in place once the paths are fixed.

How does Galaxy help?

Galaxy highlights SSL startup errors in its connection pane, suggests corrected my.cnf settings, and stores secure file paths in encrypted local vaults to prevent mismatches.

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