my server get high load from mysql server

[selvamurali]

hi all i get mysql server load very high
this is showing process list


Pid Owner Priority CPU % Memory % Command
26781 (Trace) (Kill) mytitbit 0 18.0 1.0 /usr/bin/php /disk1/mytitbit/public_html/user.php
25381 (Trace) (Kill) mysql 0 17.9 2.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/vmclouds.vmclouds.net.pid --skip-external-locking
26764 (Trace) (Kill) mytitbit 0 16.2 0.0

 <defunct>
26802 (Trace) (Kill)	mytitbit	0	  14.0	     0.6	/usr/bin/php /disk1/mytitbit/public_html/404error.php
26754 (Trace) (Kill)	mytitbit	0	  12.1	     1.4	/usr/bin/php /disk1/mytitbit/public_html/search.php

what to do now
i am running mysql tunner it will given the followning result

[QUOTE]>>  MySQLTuner 1.1.2 - Major Hayden <[email protected]>
 >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/
 >>  Run with '--help' for additional options and output filtering

-------- General Statistics --------------------------------------------------
[--] Skipped version check for MySQLTuner script
[OK] Currently running supported MySQL version 5.0.92-community
[!!] Switch to 64-bit OS - MySQL cannot currently use all of your RAM

-------- Storage Engine Statistics -------------------------------------------
[--] Status: +Archive -BDB -Federated +InnoDB -ISAM -NDBCluster
[--] Data in MyISAM tables: 383M (Tables: 5179)
[--] Data in InnoDB tables: 13M (Tables: 804)
[--] Data in MEMORY tables: 0B (Tables: 1)
[!!] Total fragmented tables: 34

-------- Performance Metrics -------------------------------------------------
[--] Up for: 3h 50m 57s (748K q [54.021 qps], 10K conn, TX: 860M, RX: 76M)
[--] Reads / Writes: 98% / 2%
[--] Total buffers: 34.0M global + 2.7M per thread (100 max threads)
[OK] Maximum possible memory usage: 302.7M (14% of installed RAM)
[OK] Slow queries: 0% (8/748K)
[OK] Highest usage of available connections: 11% (11/100)
[OK] Key buffer size / total MyISAM indexes: 8.0M/185.0M
[OK] Key buffer hit rate: 99.7% (261M cached / 776K reads)
[!!] Query cache is disabled
[OK] Sorts requiring temporary tables: 8% (3K temp sorts / 39K sorts)
[!!] Joins performed without indexes: 2978
[!!] Temporary tables created on disk: 39% (14K on disk / 35K total)
[!!] Thread cache is disabled
[!!] Table cache hit rate: 0% (64 open / 42K opened)
[OK] Open file limit used: 10% (107/1K)
[OK] Table locks acquired immediately: 99% (770K immediate / 770K locks)
[!!] InnoDB data size / buffer pool: 13.1M/8.0M

-------- Recommendations -----------------------------------------------------
General recommendations:
    Run OPTIMIZE TABLE to defragment tables for better performance
    MySQL started within last 24 hours - recommendations may be inaccurate
    Enable the slow query log to troubleshoot bad queries
    Adjust your join queries to always utilize indexes
    When making adjustments, make tmp_table_size/max_heap_table_size equal
    Reduce your SELECT DISTINCT queries without LIMIT clauses
    Set thread_cache_size to 4 as a starting value
    Increase table_cache gradually to avoid file descriptor limits

Variables to adjust:

    query_cache_size (>= 8M)
    join_buffer_size (> 128.0K, or always use indexes with joins)
    tmp_table_size (> 32M)
    max_heap_table_size (> 16M)
    thread_cache_size (start at 4)
    table_cache (> 64)
    innodb_buffer_pool_size (>= 13M)[/QUOTE]

kindle help

 

[selvamurali]

can any one help me

 

[ramindia]

Hi

kindly post your existing my.conf

 

[selvamurali]

how i get the information of my.conf

 

[selvamurali]

i seen my my.cnf via ssh

its told only one line
[mysqld]

there is no line after that.
pls guide me

 

[cPanelTristan]

Hello,

If /etc/my.cnf only has that line in it, then put the following into that file:

[mysqld]
innodb_buffer_pool_size = 13M
max_heap_table_size = 48M
query_cache_limit = 1M
query_cache_size = 8M
query_cache_type = 1
table_cache = 80
thread_cache_size = 4
tmp_table_size = 48M

After setting the above variables, you could then restart MySQL:

/etc/init.d/mysql restart

Thanks!

 

[huggys]

I have the same issue and I was wondering if you could take the time to look at mine as well?

[mysqld]
old_passwords=1
datadir=/var/lib/mysql
skip-locking
safe-show-database
tmp_table_size = 64M
max_heap_table_size = 64M
query_cache_limit=2M
query_cache_size=32M ## 32MB for every 1GB of RAM
query_cache_type=1
max_user_connections=25
max_connections=100

collation_server=utf8_unicode_ci
character_set_server=utf8

delayed_insert_timeout=40

interactive_timeout=10
wait_timeout=3600
connect_timeout=20
thread_cache_size=128
key_buffer=32M ## 32MB for every 1GB of RAM
join_buffer=1M
max_connect_errors=20
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=1M ## 1MB for every 1GB of RAM
read_buffer_size=1M ## 1MB for every 1GB of RAM
read_rnd_buffer_size=1M  ## 1MB for every 1GB of RAM
thread_concurrency=2 ## Number of CPUs x 2
myisam_sort_buffer_size=32M
server-id=1

[mysql.server]
user=mysql

[safe_mysqld]
err-log=/var/log/mysqld.log
pid-file=/var/lib/mysql/mysql.pid

[mysqldump]
quick
max_allowed_packet=16M

[mysql]
no-auto-rehash
log-slow-queries=/var/log/mysql_slow_queries.log

Thank you!

 

[cPanelTristan]

Hello huggys,

If you post it into your own thread, we could look at it. It isn't normally advisable to post your issue into another thread when it's a discussion on configuring specific server options.

If you'd like, I would be happy to move your post into your own thread.

Thanks!