Memcached is a high-performance, distributed memory caching system designed to speed up dynamic web applications by alleviating database load. It stores data in memory for quick retrieval, making it an essential tool for improving application performance and scalability.
When using Memcached, you might encounter the error message: SERVER_ERROR failed to initialize network. This error indicates that Memcached is unable to start due to network initialization issues.
The server fails to start, and the error message is logged, preventing Memcached from functioning correctly. This can lead to application performance degradation as caching is not operational.
The error SERVER_ERROR failed to initialize network typically arises when Memcached cannot set up its network configurations. This could be due to incorrect network settings, insufficient permissions, or conflicts with other network services.
To resolve the network initialization error in Memcached, follow these steps:
Check the Memcached configuration file (usually /etc/memcached.conf) for network settings. Ensure that the IP address and port are correctly specified and not conflicting with other services.
sudo nano /etc/memcached.conf
Look for lines specifying -l (listen) and -p (port) options.
Ensure that Memcached has the necessary permissions to bind to the specified network interface. You may need to run Memcached with elevated privileges or adjust user permissions.
sudo memcached -u memcache
Use the netstat or ss command to check if the port Memcached is trying to use is already occupied by another service.
sudo netstat -tuln | grep [port_number]
If a conflict is found, either change the Memcached port in the configuration file or stop the conflicting service.
After making the necessary changes, restart the Memcached service to apply the new configurations.
sudo systemctl restart memcached
For further reading and troubleshooting, consider the following resources:
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