First we have to check load on server
How to check load on server using top command.
Using top command we can check the load on server.
[root@abc ~]# top
load average: 37.00. 40.04. 70.00
We can see 37.00 is last minute load. 40.04 is last 5 minutes load and 70.00 is the last 15 minutes load on server.
[root@abc ~] #netstat -antupl | grep http
Is there are number of HTTP connections then follow the further steps.
2. Use following command to kill HTTP connections.
[root@abc ~] #killall -9 httpd
3. Restart httpd service.
[root@abc ~] # /etc/init.d/httpd restart
after restarting the service you show load average shows to be down.
[root@abc ~ ]# 2.55. 2.37. 1.92