grep - 请问监测linux服务关键进程主要是参考哪个值

Question

做一个服务器监控程序，需要监控核心进程，有几个疑问请教一下：

指令

ps -ef|grep -v  grep|grep redis

结果：
redis 20508 1 1 Jan21 ? 01:30:10 /usr/sbin/redis-server /etc/redis.conf

疑问
1.以上结果中哪个值（字段）可以作为进程监控的依据？
2.如果以上指令不能很好的监控，请问有什么更好的指令？

Answer 1

ps -ef|grep command is mainly to filter out whether the process you want to check is running, and it will return the process ID which can be used for subsequent operations;
The above results show:

1. The redis process exists, that is, redis has been started and did not exit abnormally;

2. The redis process number is 20508, you can kill it by kill 20508;

3. This redis process is started through the /usr/sbin/redis-server file, and the configuration file used is /etc/redis.conf

4. The start time of this redis process is Jan21 (January 21) 01:30:10

5. This redis process is started using the ? account (the user is not displayed, only the ? number is displayed)

Answer 2

Is the poster referring to the process ID?

Answer 3

Looking at this can tell whether the process is dead or not, but there is not a lot of useful information

First think clearly about the purpose of your monitoring and which indicators can meet your purpose