1575
MariaDBERRORCriticalBinary LogHIGH confidence

Cannot activate binary log

Production Risk

High — binary logging is critical for replication and recovery.

What this means

MySQL failed to activate or open the binary log file.

Why it happens
  1. 1Disk full or I/O error when creating a new binary log file.
  2. 2Permissions issue on the binary log directory.
  3. 3Binary log index file is corrupted.
How to reproduce
trigger — this will error
trigger — this will error
-- Internal error; typically surfaces at startup or FLUSH LOGS when disk is full.

expected output

ERROR 1575 (HY000): Can't activate '%s' log

Fix 1

Free disk space

Free disk space
-- Purge old binary logs:
PURGE BINARY LOGS BEFORE DATE_SUB(NOW(), INTERVAL 7 DAY);

Why this works

Freeing disk space allows MySQL to create new binary log files.

Fix 2

Fix directory permissions

Fix directory permissions
-- chown -R mysql:mysql /var/lib/mysql/binlogs

Why this works

The MySQL process must have write access to the binary log directory.

What not to do

Sources
Official documentation ↗

MySQL 8.0 — 1575 ER_CANT_ACTIVATE_LOG

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