Un sacco di processi mysql Sleep

Question

Ho ancora problemi con il mio server mysql. Sembra che da quando lo ottimizzo, i tavoli sono cresciuti e ora a volte è molto lenta. Non ho idea di come ottimizzare di più.

server mySQL ha 48 GB di RAM e mysqld utilizza circa 8, la maggior parte delle tabelle sono innoDB.

Il sito ha circa 2000 utenti online. Eseguo anche spiegazioni su ogni query e ognuna di esse è indicizzata.

processi di MySQL: http://www.pik.ba/mysqlStanje.php

my.cnf: "SELEZIONA tablename *"

# The MySQL database server configuration file. 
# 
# You can copy this to one of: 
# - "/etc/mysql/my.cnf" to set global options, 
# - "~/.my.cnf" to set user-specific options. 
# 
# One can use all long options that the program supports. 
# Run program with --help to get a list of available options and with 
# --print-defaults to see which it would actually understand and use. 
# 
# For explanations see 
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html 

# This will be passed to all mysql clients 
# It has been reported that passwords should be enclosed with ticks/quotes 
# escpecially if they contain "#" chars... 
# Remember to edit /etc/mysql/debian.cnf when changing the socket location. 
[client] 
port   = 3306 
socket   = /var/run/mysqld/mysqld.sock 

# Here is entries for some specific programs 
# The following values assume you have at least 32M ram 

# This was formally known as [safe_mysqld]. Both versions are currently parsed. 
[mysqld_safe] 
socket   = /var/run/mysqld/mysqld.sock 
nice   = 0 

[mysqld] 
# 
# * Basic Settings 
# 
user   = mysql 
pid-file  = /var/run/mysqld/mysqld.pid 
socket   = /var/run/mysqld/mysqld.sock 
port   = 3306 
basedir   = /usr 
datadir   = /var/lib/mysql 
tmpdir   = /tmp 
language  = /usr/share/mysql/english 
skip-external-locking 
# 
# Instead of skip-networking the default is now to listen only on 
# localhost which is more compatible and is not less secure. 
bind-address   = 10.100.27.30 
# 
# * Fine Tuning 
# 
key_buffer    = 64M 
key_buffer_size = 512M 
max_allowed_packet  = 16M 
thread_stack   = 128K 
thread_cache_size  = 8 
# This replaces the startup script and checks MyISAM tables if needed 
# the first time they are touched 
myisam-recover   = BACKUP 
max_connections  = 1000 
table_cache   = 1000 
join_buffer_size  = 2M 
tmp_table_size   = 2G 
max_heap_table_size  = 2G 
innodb_buffer_pool_size = 3G 
innodb_additional_mem_pool_size = 128M 
innodb_log_file_size = 100M 
log-slow-queries  = /var/log/mysql/slow.log 
sort_buffer_size  = 5M 
net_buffer_length  = 5M 
read_buffer_size  = 2M 
read_rnd_buffer_size = 12M 
thread_concurrency  = 10 
ft_min_word_len = 3 
#thread_concurrency  = 10 
# 
# * Query Cache Configuration 
# 
query_cache_limit  = 1M 
query_cache_size  = 512M 
# 
# * Logging and Replication 
# 
# Both location gets rotated by the cronjob. 
# Be aware that this log type is a performance killer. 
#log   = /var/log/mysql/mysql.log 
# 
# Error logging goes to syslog. This is a Debian improvement :) 
# 
# Here you can see queries with especially long duration 
#log_slow_queries  = /var/log/mysql/mysql-slow.log 
#long_query_time = 2 
#log-queries-not-using-indexes 
# 
# The following can be used as easy to replay backup logs or for replication. 
# note: if you are setting up a replication slave, see README.Debian about 
#  other settings you may need to change. 
#server-id    = 1 
#log_bin      = /var/log/mysql/mysql-bin.log 
expire_logs_days  = 10 
max_binlog_size   = 100M 
#binlog_do_db   = include_database_name 
#binlog_ignore_db  = include_database_name 
# 
# * BerkeleyDB 
# 
# Using BerkeleyDB is now discouraged as its support will cease in 5.1.12. 
skip-bdb 
# 
# * InnoDB 
# 
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/. 
# Read the manual for more InnoDB related options. There are many! 
# You might want to disable InnoDB to shrink the mysqld process by circa 100MB. 
#skip-innodb 
# 
# * Security Features 
# 
# Read the manual, too, if you want chroot! 
# chroot = /var/lib/mysql/ 
# 
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca". 
# 
# ssl-ca=/etc/mysql/cacert.pem 
# ssl-cert=/etc/mysql/server-cert.pem 
# ssl-key=/etc/mysql/server-key.pem 



[mysqldump] 
quick 
quote-names 
max_allowed_packet  = 16M 

[mysql] 
#no-auto-rehash # faster start of mysql but no tab completition 

[isamchk] 
key_buffer    = 16M 

# 
# * NDB Cluster 
# 
# See /usr/share/doc/mysql-server-*/README.Debian for more information. 
# 
# The following configuration is read by the NDB Data Nodes (ndbd processes) 
# not from the NDB Management Nodes (ndb_mgmd processes). 
# 
# [MYSQL_CLUSTER] 
# ndb-connectstring=127.0.0.1 


# 
# * IMPORTANT: Additional settings that can override those from this file! 
# The files must end with '.cnf', otherwise they'll be ignored. 
# 
!includedir /etc/mysql/conf.d/ 

Answer 1

Ho aggiornato sulla tua pagina lista processo un paio di volte e molto spesso le query che ho visto inclusi

Hai bisogno di ogni colonna da quella tabella? Se no, questo potrebbe aiutare.

A meno che il tuo server non sia impegnato per le risorse, non mi preoccuperei molto dei processi di sospensione. Solitamente non consumano molte risorse. Tuttavia, se davvero si desidera impostare manualmente la quantità di tempo prima di essere uccisi è possibile effettuare le seguenti operazioni nel file di configurazione:

[mysqld] 
wait_timeout=20