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[SOLVED] How to Fix Redis Connection Error 127.0.0.1:6379 Failed - connect ECONNREFUSED 127.0.0.1:6379 - redis?

[SOLVED] How to Resolve Redis Connection Error 127.0.0.1:6379 - Troubleshooting ECONNREFUSED Issues

Getting the Redis connection error “127.0.0.1:6379 Failed - connect ECONNREFUSED 127.0.0.1:6379” is really annoying. This is more so when we need Redis for caching or data storage. This error usually means our Redis server is not reachable. There can be many reasons for this. In this article, we will look at easy ways to fix this common Redis connection error. By following these steps, we can find the cause of the problem and get our Redis connection back.

Solutions to Fix Redis Connection Error 127.0.0.1:6379

  • Part 1 - Check if Redis Server is Running
  • Part 2 - Verify Redis Configuration File
  • Part 3 - Ensure Correct Redis Port and Bind Address
  • Part 4 - Restart Redis Service
  • Part 5 - Check Firewall and Security Settings
  • Part 6 - Review Redis Logs for Errors

If you want to learn more about Redis, we can check our articles on how to fix Redis configuration issues and how to run Redis on Windows. By knowing the common mistakes and solutions, we can make sure our Redis runs smoothly and efficiently.

Part 1 - Check if Redis Server is Running

To fix the Redis connection error 127.0.0.1:6379 Failed - connect ECONNREFUSED 127.0.0.1:6379, we first need to check if the Redis server is running. We can use this command to check the Redis service status:

sudo systemctl status redis

If the service is not running, we can start it with:

sudo systemctl start redis

To make sure Redis starts by itself when we boot the computer, we should enable it with:

sudo systemctl enable redis

If we use a different way to install Redis or a different platform, we can check if Redis is running by typing this:

ps aux | grep redis-server

This command shows us any Redis server processes that are running. If we do not see anything that says Redis is running, we can start it by ourselves. If we installed Redis using Docker, we can check with:

docker ps

We need to look for a container that is running Redis. If it is not running, we can start it with:

docker run --name my-redis -d redis

After we start the Redis server, let’s try to reconnect to see if the error still happens. For more help with Redis connection problems, we can check this guide on fixing Redis connection errors.

Part 2 - Verify Redis Configuration File

To fix the Redis connection error 127.0.0.1:6379 Failed - connect ECONNREFUSED 127.0.0.1:6379, we need to check the Redis configuration file. This file is usually found in /etc/redis/redis.conf or /usr/local/etc/redis.conf, based on how you installed it.

  1. Open the Redis Configuration File:

    sudo nano /etc/redis/redis.conf

  2. Check the bind Address: We must make sure the bind setting allows connections from localhost:

    bind 127.0.0.1

    If we want connections from other IPs, we can change it. But we should be careful about security.

  3. Verify the Port: We need to check that the port is set correctly:

    port 6379

  4. Check for protected-mode: If we run Redis in a non-local setup, we should check the protected-mode setting:

    protected-mode yes

  5. Review Other Key Settings:

    • We should set daemonize to yes if we run it as a background service:

      daemonize yes

    • If we use passwords, we need to check that requirepass is set right:

      requirepass yourpassword

  6. Save and Exit: After we make any changes, we save the file and exit the editor.

  7. Restart Redis Server: To apply the changes, we restart the Redis server:

    sudo systemctl restart redis

By checking the Redis configuration file, we can solve the ECONNREFUSED error. This will make sure Redis is reachable at the right address and port. For more help, we can look at the complete guide on fixing Redis connection errors.

Part 3 - Ensure Correct Redis Port and Bind Address

We need to fix the Redis connection error 127.0.0.1:6379 failed - connect ECONNREFUSED 127.0.0.1:6379. First, we check that the Redis server listens on the right port and bind address. By default, Redis uses port 6379 and binds to 127.0.0.1.

  1. Check Redis Configuration: Open the Redis config file. It is usually found at /etc/redis/redis.conf.

    sudo nano /etc/redis/redis.conf

  2. Verify the bind Directive: We need to make sure that the bind line has 127.0.0.1 or the IP address of our server.

    bind 127.0.0.1

  3. Check the port Directive: Let’s confirm the port is set to 6379.

    port 6379

  4. Save Changes and Exit: If we change anything, we should save the file and exit the editor.

  5. Restart Redis: To make the changes work, we have to restart the Redis server.

    sudo systemctl restart redis.service

  6. Test Redis Connection: We can test the connection using Redis CLI.

    redis-cli -h 127.0.0.1 -p 6379

If we still have connection problems, let’s check if we run multiple Redis instances or if another service uses the same port. Also, we might want to learn how to reuse Redis connections if needed.

For more details on Redis configuration, we can look at how to run Redis on Windows or find out more about Redis caching here.

Part 4 - Restart Redis Service

To fix the Redis connection error 127.0.0.1:6379 Failed - connect ECONNREFUSED 127.0.0.1:6379, we can restart the Redis service. This often helps. Here are steps to do this on your system:

On Linux

  1. Stop the Redis service:

    sudo systemctl stop redis

  2. Start the Redis service:

    sudo systemctl start redis

  3. Check the status of the Redis service:

    sudo systemctl status redis

On macOS (using Homebrew)

  1. Restart Redis:

    brew services restart redis

On Windows

  1. Open Command Prompt as Administrator.

  2. Restart Redis service:

    net stop redis
net start redis

After we restart the Redis service, we should try to connect again using our Redis client. If we still have problems, we can check the Redis logs for any errors or wrong settings. For more help on Redis settings, we can visit this link.

Part 5 - Check Firewall and Security Settings

To fix the Redis connection error 127.0.0.1:6379 - connect ECONNREFUSED, we need to check if our firewall or security settings are blocking the Redis server.

  1. Check Firewall Rules:

    • If we use iptables, we can see the current rules by typing:

      sudo iptables -L -n

    • We need to make sure that port 6379 is open for incoming connections. If it is not open, we can add a rule like this:

      sudo iptables -A INPUT -p tcp --dport 6379 -j ACCEPT

  2. For UFW (Uncomplicated Firewall):

    • We can check the status by running:

      sudo ufw status

    • To allow Redis through the firewall, we type:

      sudo ufw allow 6379

  3. SELinux Settings (if we use it):

    • We check SELinux status by running:

      sestatus

    • If it is enforcing, we might need to allow Redis like this:

      sudo setsebool -P redis_connect_any 1

  4. Third-party Security Software:

    • We should check that any third-party firewall or security software lets traffic through port 6379.

  5. Testing the Connection:

    • After we change the firewall settings, we can test the connection by typing:

      redis-cli -h 127.0.0.1 -p 6379 ping

    • If everything is okay, we will get a response of PONG.

For more help on fixing Redis connection problems, we can visit this article.

Part 6 - Review Redis Logs for Errors

To fix the Redis connection error 127.0.0.1:6379 Failed - connect ECONNREFUSED 127.0.0.1:6379, we need to check the Redis logs. These logs can show us error messages that tell us what is wrong.

  1. Locate the Redis Log File: Normally, we find the log file at /var/log/redis/redis-server.log. This path can change depending on our operating system or setup.

  2. View Log Contents: We can see the log file by using this command:

    tail -f /var/log/redis/redis-server.log

    This command shows us the latest entries right away.

  3. Check for Errors: We should look for errors like:

    • Error: Unable to bind to 127.0.0.1
    • Error: Cannot connect to Redis
    • Any other errors that tell us why the server is not accepting connections.

  4. Adjust Log Level: If we want more details in the logs, we can change the log level in the Redis config file (/etc/redis/redis.conf):

    loglevel debug

    After we change this, we need to restart the Redis service to use the new log level:

    sudo systemctl restart redis

  5. Monitor the Log for New Errors: After we change the log level, let’s keep checking the log file for any new errors when we try to connect again.

For more information on common Redis errors, we can look at this article. This can help us understand specific log entries that we find.

Frequently Asked Questions

1. What causes the Redis connection error 127.0.0.1:6379 - connect ECONNREFUSED?

The Redis connection error ‘127.0.0.1:6379 - connect ECONNREFUSED’ usually happens when the Redis server is not running or can’t be reached. This can happen if the Redis service is stopped or if settings are wrong. Sometimes network problems also cause this error. For more help, we can look at our article on how to fix Redis connection errors here.

2. How can I check if the Redis server is running?

To check if the Redis server is running, we can use the command redis-cli ping in your terminal. If the server is working, it will reply with ‘PONG’. If we get connection errors, we can follow our step-by-step guide on fixing the Redis connection error for more details here.

3. What should I do if Redis is not starting?

If Redis is not starting, we should check the Redis configuration file for mistakes. Look in the redis.conf file for problems with the port or bind address. Also, make sure no other processes are using the same port. For more help on settings problems, we can check our troubleshooting guide here.

4. How do I change the default Redis port?

To change the default Redis port, we need to edit the redis.conf file. Find the line that says port 6379 and change it to a port number we want, like port 6380. After saving, we must restart the Redis service so the changes work. For a full guide on Redis settings, visit this article.

5. Why is my Redis service refusing connections?

The Redis service may refuse connections for many reasons. It could be that the server is not running or that the bind address settings are wrong. Sometimes firewall settings can block connections too. We should make sure the Redis server is running and check firewall settings to allow traffic on the Redis port. For more tips on troubleshooting, see our guide on fixing Redis connection errors here.

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