richardss

Registered
Nov 12, 2017
3
0
1
Swindon
cPanel Access Level
Root Administrator
Evening all,

Looking for some advice if possible please?

Running a centos 7 box and on Friday, had a crazy high load issue with what I think was MySQL I ran

"sar -q -s 18:00:00 -e 20:00:00 -f /var/log/sa/sa10"

And got the following output

Linux 3.10.0-693.2.2.el7.x86_64 (pluto.hostname) 10/11/17 _x86_64_ (4 CPU)


18:00:01 runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked

18:10:01 3 213 0.40 0.26 0.17 0

18:20:01 1 208 0.48 0.26 0.23 0

18:30:01 3 211 0.14 0.20 0.21 0

18:40:21 55 411 93.81 42.58 16.54 22

18:50:10 103 457 115.15 100.19 59.64 18

19:00:46 29 483 129.45 105.40 81.24 149

19:10:02 1 231 1.43 41.10 64.70 0

19:20:01 1 226 0.06 5.69 34.13 0

19:30:01 2 228 0.11 0.88 17.96 0

19:40:01 1 225 0.02 0.21 9.47 0

19:50:01 1 232 0.15 0.09 5.00 0

Average: 18 284 31.02 26.99 26.30 17

[[email protected] ~]#


Clearly, there was issues between 18:40 - 19:10 (ish) but I don't how to find out what caused it / where to look in the logs.

Can anyone help me please?

Thank you
 

SysSachin

Well-Known Member
Aug 23, 2015
604
48
28
India
cPanel Access Level
Root Administrator
Twitter
Hello,

You have to monitor server using the "top" command. The command will show the process which is causing the high load on the server.