Skip to main content

linux - Server performance affected by MySQL memory consuption and CPU usage

Everyday during the peak time my server getting slow or down. Our hosting provider insisting us to upgrade the server but I think some performance tuning issue is there.



Adding the process information, server configuration and my.cnf parameters below.



Process Information 



 PID  USER       PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                  

 60848 mysql     20   0 34.8g  23g 6416 S 2196.2 82.1  16027:29 mysqld


Dedicated Server Configuration



Size:   'Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz', 2600MHz, 6 Core, Sockets: 2    
Image:  CentOS 6 64-bit with cPanel Fully-managed   
CPU:    Intel Dual Xeon E5-2620 v3
Speed:  2600MHz 
RAM:    32067MB 

CPUs:   2 Physical CPUs
Cores:  12 
Total Cores RAID:   Level 10
Disks:  4
Size:   917GB   
Type:   SSD


MySQL Configuration




[mysqld]
slow_query_log = 1
#long_query_time = 2
long_query_time = 2
slow_query_log_file = /var/lib/mysql/vps-slow.log
performance-schema=0
max_connections = 250
max_allowed_packet=128M
#skip-external-locking
key_buffer_size = 256M

open_files_limit = 50000
table_open_cache = 15000
sort_buffer_size = 6M
join_buffer_size = 6M
read_buffer_size = 1M
read_rnd_buffer_size = 15M
myisam_sort_buffer_size = 64M
query_cache_type=1
query_cache_limit=2M
query_cache_size=128M

max_heap_table_size = 96M
tmp_table_size = 96M
#low_priority_updates=1

thread_cache_size = 32
wait_timeout = 300
connect_timeout=15
interactive_timeout = 800

innodb_buffer_pool_size=4096M

innodb_buffer_pool_instances = 4

group_concat_max_len=1000000

default-storage-engine=MyISAM
innodb_file_per_table=1

[mysqldump]
quick



Please help me if there is anything wrong with the configuration ?



Or



Do I really need to upgrade the server ?



PS: Hosted web application in the same server. Also WHM enabled for easy management.

Comments

Post a Comment

Popular posts from this blog

iLO 3 Firmware Update (HP Proliant DL380 G7)

The iLO web interface allows me to upload a .bin file ( Obtain the firmware image (.bin) file from the Online ROM Flash Component for HP Integrated Lights-Out. ) The iLO web interface redirects me to a page in the HP support website ( http://www.hp.com/go/iLO ) where I am supposed to find this .bin firmware, but no luck for me. The support website is a mess and very slow, badly categorized and generally unusable. Where can I find this .bin file? The only related link I am able to find asks me about my server operating system (what does this have to do with the iLO?!) and lets me download an .iso with no .bin file And also a related question: what is the latest iLO 3 version? (for Proliant DL380 G7, not sure if the iLO is tied to the server model)
Post a Comment
Read more

linux - Awstats - outputting stats for merged Access_logs only producing stats for one server's log

I've been attempting this for two weeks and I've accessed countless number of sites on this issue and it seems there is something I'm not getting here and I'm at a lost. I manged to figure out how to merge logs from two servers together. (Taking care to only merge the matching domains together) The logs from the first server span from 15 Dec 2012 to 8 April 2014 The logs from the second server span from 2 Mar 2014 to 9 April 2014 I was able to successfully merge them using the logresolvemerge.pl script simply enermerating each log and > out_putting_it_to_file Looking at the two logs from each server the format seems exactly the same. The problem I'm having is producing the stats page for the logs. The command I've boiled it down to is /usr/share/awstats/tools/awstats_buildstaticpages.pl -configdir=/home/User/Documents/conf/ -config=example.com awstatsprog=/usr/share/awstats/wwwroot/cgi-bin/awstats.pl dir=/home/User/Documents/parced -month=all -year=all...
Post a Comment
Read more

linux - How can I get my mediawiki to stop thinking I have cookies disabled?

I've searched half a day for how to resolve this issue, and can't figure it out. Shortly after I made my wiki a simple private wiki according to the instructions at Mediawiki's website, it started giving me this weird login error message: Wiki uses cookies to log in users. You have cookies disabled. Please enable them and try again. If I remove those private wiki settings, the error disappears, even if I try logging in. But I need it to be a private wiki for only my team. So what do I do? Here's what I've done so far. Just to be safe, after ever change, I try rebooting Apache using: sudo /etc/init.d/apache2 restart In my php.ini file, I have the following set: session.save_path = "/var/lib/php5" session.cookie_secure = secure session.cookie_path = /tmp session.cookie_domain = my server's internal URL (should I even set this? this field was blank before, but not commented out) session.referer_check = Off I ran the following to ensure that the fold...
Post a Comment
Read more