When you receive the error message 'redis server service failed with result start limit hit', it means that the Redis server was unable to start due to exceeding the system's start limit. This can occur if the Redis server is set to automatically start but fails to do so or repeatedly crashes. As a result, the system restricts the number of times the service can restart within a certain timeframe, leading to this error.
Insufficient memory resources can also cause this error. If there isn't enough memory available for the Redis server to start, it may fail to do so and generate this error.
To resolve this issue, begin by checking the Redis configuration file for any issues. Ensure that the configuration file is accurately configured with the appropriate parameters. Correct any errors if found, and then reattempt starting the Redis server.
If the Redis configuration file is correct, examine the system's memory availability. Utilize system monitoring tools like 'top' or 'htop' to review the system's memory usage. If the system has insufficient memory, free up some memory by stopping unimportant services, or increase the system's memory capacity.
Lastly, try increasing the restart limit for the Redis server service. You can achieve this by modifying the systemd configuration file for the Redis service. Increase the 'StartLimitIntervalSec' and 'StartLimitBurst' parameters to permit the service to restart more frequently within a specified time frame.
Dragonfly is fully compatible with the Redis ecosystem and requires no code changes to implement.