Troubleshooting
Redis service
Checking Status and Restarting Redis
To check the status of the Redis server:
For getting into the Redis container, use the command “redis-cli”.
Inside Redis, use the command “PING” -
- If the response is “PONG” then the server is running.
- If the response is blank or anything else other than “PONG,” the server is not running.
To get out of the Redis container: “exit”.
Process to restart the service if the Redis server is down
Restarting service mainly involves killing the service and starting it again.
Procedure to kill a service:
For killing any service on a Linux machine, we need the process_id of the service. The process_id which we get as the output number for further steps in killing the service by running the command is: $ ps aux|grep redis.
For killing an unresponsive service on a Linux machine, replace the process_id_of_service with the value that you have noted down in the above step:
$ sudo kill -9 process_id_of_service.
To confirm if the service is killed: $ sudo service redis-server status.
Procedure to start a service:
After successfully killing the service, to start the service: $ sudo service redis-server start.
To check the status of the service: $ sudo service redis-server status.
Note: Check the status of the redis-server as mentioned above.
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