How to fix ERROR 1076: MySQL ready for connections in MySQL

Check your MySQL error log to confirm Error 1076 appears exactly once when you start the service:

# View the error log
tail -f /var/log/mysql/error.log

# Expected output:
# 2025-01-15T10:30:45.123456Z 0 [Note] [MY-010820] [Server] mysqld (mysqld 8.0.32) ready for connections.

If the message appears multiple times in quick succession (e.g., every few seconds), the server may be crashing and restarting—investigate further. If it appears once and the server runs normally, no action is needed.

Update your log aggregation, monitoring, and alerting tools to ignore or downgrade Error 1076. Most systems allow filtering by error code or severity level:

If using syslog/journald:

# Filter out Error 1076 from MySQL logs
# Add to rsyslog configuration or journalctl filter
journalctl -u mysql.service | grep -v "1076"

If using ELK Stack, Datadog, or CloudWatch:
- Add a filter rule: error_code = 1076 → ignore
- Or filter by severity = "Note" instead of severity = "Error"

If using custom log parsing:

grep -v "ERROR 1076" error.log  # Remove false positives

If Error 1076 appears and you want to verify the server is truly ready, test a connection:

# Test with mysql client
mysql -u root -p -e "SELECT VERSION();"

# Or from another machine
mysql -h hostname -u root -p -e "SELECT VERSION();"

# Expected output:
# +-------------------+
# | VERSION()         |
# +-------------------+
# | 8.0.32-0ubuntu0.22.04.1 |
# +-------------------+

If the connection succeeds, the server is operational. Error 1076 can be safely ignored.

Repeated Error 1076 messages in quick succession indicate the server is crashing and restarting. Check:

Check server logs for crash messages:

# View full error log
tail -200 /var/log/mysql/error.log

# Look for InnoDB crashes, out-of-memory, or permission errors

Common causes of repeated crashes:
- Insufficient disk space: df -h /var/lib/mysql
- Out of memory: free -h
- Corrupted InnoDB files: Run mysqlcheck -u root -p --all-databases
- Permission issues: ls -l /var/lib/mysql
- Configuration errors: Check /etc/mysql/my.cnf for syntax issues

Restart MySQL and monitor:

systemctl restart mysql
# Monitor logs
journalctl -u mysql.service -f