System is working on some queries already

Cause

You see this message if in the MOR menu:

Setup/Settings/Server Load TAB you have setup values

Server Load is too high when one of these conditions are met:

1. HDD utilisation higher than:

2. CPU General load higher than:

3. CPU Ruby process higher than:

And other

Why it happens ?

1. Many queres goes to mysql

2. Many calls.

3. Working with rates.

4. Working with reports.

5. In other cases when many users logged into the webgui and pressing different buttons to learn menu.

Also possible bad hard disk condition, which must be replaced.

Solutions

1. Log in to the server over SSH.

2. Check server load

top

[root@mor /]# top
top - 10:18:18 up 8 days,  4:33,  3 users,  load average: 0.00, 0.02, 0.00
Tasks: 175 total,   1 running, 172 sleeping,   0 stopped,   2 zombie
Cpu(s):  0.2%us,  0.6%sy,  0.1%ni, 99.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   4056240k total,  3502792k used,   553448k free,   150176k buffers
Swap:  4063228k total,   131476k used,  3931752k free,   402968k cached

 PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                        
  22 root      20   0     0    0    0 S  0.3  0.0   4:32.51 events/3                                                                        
1886 mysql     20   0 2539m 574m 4716 S  0.3 14.5  19:32.47 mysqld                                                                          
2165 root      20   0 2530m  15m 4196 S  0.3  0.4  20:10.94 asterisk                                                                        
3561 root      20   0  949m 4584 2732 S  0.3  0.1  10:36.30 PassengerHelper                                                                 
25893 root      20   0 15020 1388 1008 R  0.3  0.0   0:00.01 top                                                                             
   1 root      20   0 19360 1064  880 S  0.0  0.0   0:01.87 init 

3. Check Active calls

asterisk -rx "core show channels"

4. Check HDD

atop -d 

Kill MySQL Query

1. Log in to the server over SSH.

2. Connect to the mysql

mysql -u root -pkolmisoft

3. Check processlist

select * from INFORMATION_SCHEMA.PROCESSLIST where db = 'mor'\g

4. Kill process which is overloading mysql

mysql> kill 2488509;

Precaution

Setting for users to limit for how many days they can watch statistics

Check slow query log