The error 'memcached set not working' can be caused by several factors. One of the most common reasons is due to memory allocation issues. If the available memory allocated to Memcached is insufficient or not configured properly, it will not be able to store data using the 'set' command.
Another possible cause of this error is network connectivity issues. If there are problems with the network connection between the client and the Memcached server, 'set' commands will fail. Other potential causes include incorrect configuration settings, software bugs or incompatibilities, and hardware failures.
To resolve the 'memcached set not working' error, first, ensure that the memory allocated to Memcached is sufficient and correctly configured. Check the Memcached configuration file to verify that the maximum memory allocation value is appropriate for your system. If necessary, increase the value and restart Memcached.
If memory allocation is not the issue, try checking the network connectivity between the client and the Memcached server. Ensure that the client is connected to the correct IP address and port number, and that there are no firewalls or other network restrictions blocking the connection.
In some cases, software bugs or incompatibilities may be causing the error. Try updating to the latest version of Memcached or switching to an alternative implementation. Finally, if none of these solutions work, consider seeking further assistance from a Memcached expert or support community.