[GitHub] chalsliu commented on issue #365: Failed to start Doris BE on centos 7

[GitBox <gi...@apache.org>]

chalsliu commented on issue #365: Failed to start Doris BE on centos 7
URL: https://github.com/apache/incubator-doris/issues/365#issuecomment-442450897
 
 
   ```
   if [ -f $pidfile ]; then
       if kill -0 $(cat $pidfile); then
           echo "Backend running as process `cat $pidfile`. Stop it first."
           exit 1
       else
           rm $pidfile
       fi
   fi
   ```
   
   
   Solution:
   Don't use kill to send a signal to check whether the process is started. A better way is to verify the existence of the /proc/$pid path. This method can further obtain other information about the process for more accurate judgment.

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