How to Fix – WordPress Error Establishing a Database Connection AWS

Fix the WordPress error establishing a database connection AWS with step-by-step solutions. Our WordPress team is ready to assist.

How to Fix – WordPress Error Establishing a Database Connection AWS

If you’re dealing with the WordPress error establishing a database connection AWS issue, you’re not alone. This is one of the most frustrating problems WordPress users face, especially when it happens out of nowhere. The error can halt your entire site, confuse your visitors, and leave you scrambling for answers, especially when facing WordPress intermediate errors on CyberPanel. The good news? Fixing it isn’t as complex as it seems.

Below is a concise and focused guide to resolve the WordPress error establishing a database connection AWS issue, with zero fluff.

Common Reasons Behind the Error

This error typically stems from:

• Corrupted database tables
• Remote database connection failure
• Database service being down
• Insufficient disk space
• Wrong database login credentials in your WordPress config file

Step 1: Increase EC2 Swap Memory (If You’re Out of RAM)

On smaller AWS EC2 instances, low memory can crash MySQL. Adding swap solves it:

sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
sudo /sbin/mkswap /var/swap.1
sudo chmod 600 /var/swap.1
sudo /sbin/swapon /var/swap.1Copy Code

For more than 1GB, increase the count value.
To persist after reboot, add this to /etc/fstab:

swap /var/swap.1 swap defaults 0 0Copy Code

Verify swap with:

cat /proc/meminfoCopy Code

Step 2: Check for Corrupted Database Tables

Open your wp-admin page (example.com/wp-admin). If you see:

“One or more database tables are unavailable. The database may need to be repaired.”

It’s time to repair them.

1. Edit wp-config.php:

$ sudo vi wp-config.phpCopy Code

2. Add this line:

define('WP_ALLOW_REPAIR', true);Copy Code

1. Visit: example.com/wp-admin/maint/repair.php
   Run the repair and optimize options.
2. Important: Remove the line you added after the repair. Leaving it poses a security risk.

Step 3: Troubleshoot Remote Database Connections

If your DB_HOST isn’t localhost or 127.0.0.1, then you’re using a remote database.

Check this in wp-config.php:

define('DB_HOST', '192.168.22.9');Copy Code

Try connecting to the DB host using telnet:

telnet 192.168.22.9 3306Copy Code

If it fails:

• The DB server doesn’t allow remote connections.
• A firewall might be blocking port 3306.

Fix either the DB config or firewall to allow traffic.

Step 4: Check if the MySQL Service is Running

Run:

sudo service mysqld statusCopy Code

If it’s inactive, restart it:

sudo service mysqld restartCopy Code

or

/etc/init.d/mysqld restartCopy Code

Still no luck? Try restarting Apache:

sudo systemctl restart apache2Copy Code

or

sudo service apache2 restartCopy Code

Step 5: Check for Full Disk Space

A full disk can also result in the WordPress error establishing a database connection AWS, as MySQL won’t start without write access or if the main WordPress directory not writable.

1. Run:

sudo df -hCopy Code

The preceding command lists the amount of free disk space, as shown in the following example:

Size    Used     Avail      Use%    Mounted on devtmpfs        1.9G     0       1.9G        0%     /dev
tmpfs           1.9G     0       1.9G        0%     /dev/shm
tmpfs           1.9G    400K     1.9G        1%     /run
tmpfs           1.9G     0       1.9G        0%     /sys/fs/cgroup
/dev/nvme0n1p1  8.0G    8.0G      0G        100%    /
tmpfs           389M     0       389M        0%     /run/user/1000Copy Code

1. You can:

• Resize your instance
• Delete unused logs, backups, or temp files

2. Then restart MySQL again.
3. Freeing up space often brings this WordPress error to an end, especially on low-tier EC2s.

[If needed, Our team is available 24/7 for additional assistance.]

Conclusion

The WordPress error establishing a database connection AWS is usually due to common resource or config issues. Follow the steps above and monitor your AWS usage. If it persists, consider scaling or optimizing your setup.