How to determine whether redis is successfully started

Determine whether Redis is started successfully: Check whether the process exists and is running. Use the Telnet client to connect to the Redis server and see if you receive a command prompt. Enter the ping command and check if you receive a "PONG" response. Check the Redis log file for errors or warning messages. On some systems, you can also check the system logs for messages about Redis startup status.

How to determine whether Redis is started successfully

The steps to determine whether Redis is successfully started are as follows:

1. Check the process

• Use the ps aux | grep redis command to check whether the Redis process is running.

• Redis started successfully if the output resembles the following:

   <code>redis-server 774 0.0 0.2 131792 16316 ? Ssl Jan05 0:04 /usr/local/bin/redis-server 127.0.0.1:6379</code>

2. Telnet connection

• Connect to a Redis server using the Telnet client:

   <code>telnet 127.0.0.1 6379</code>

• If the connection is successful, you will see the Redis command prompt:

   <code>redis 127.0.0.1:6379></code>

3. Ping command

• Enter the ping command at the Redis command prompt:

   <code>redis 127.0.0.1:6379> ping PONG</code>

• If a "PONG" response is received, Redis is running and accessible.

4. Check log files

• Check the Redis log file (usually located in /var/log/redis/redis.log ) for error or warning messages.
• If the log file is empty or there is no error message, Redis may have started successfully.

5. System log

• On some systems, you can also check the system logs (for example /var/log/messages) to find messages about Redis startup status.

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