MySQL performance tuning primer script

#!/bin/sh

#########################################################################
# #
# MySQL performance tuning primer script #
# Writen by: Matthew Montgomery #
# Inspired by: MySQLARd (http://gert.sos.be/demo/mysqlar/) #
# Version: 1.5-r2 Released: 2009-04-21 #
# Licenced under GPLv2 #
# #
#########################################################################

#########################################################################
# #
# Little known feature: 1st argument is execution mode #
# #
# Usage: ./tuning-primer.sh [ mode ] #
# #
# Available Modes: #
# all : perform all checks (default) #
# prompt : prompt for login credintials and socket #
# and execution mode #
# mem, memory : run checks for tunable options which #
# effect memory usage #
# disk, file : run checks for options which effect #
# i/o performance or file handle limits #
# innodb : run InnoDB checks /* to be improved */ #
# misc : run checks for that don't categorise #
# well Slow Queries, Binary logs, #
# Used Connections and Worker Threads #
#########################################################################
# #
# Set this socket variable ONLY if you have multiple instances running #
# or we are unable to find your socket, and you don't want to to be #
# prompted for input each time you run this script. #
# #
#########################################################################
socket=

cecho ()

## -- Function to easliy print colored text -- ##

# Color-echo.
# Argument $1 = message
# Argument $2 = color
{
export black='\e[0m\c'
export boldblack='\e[1;0m\c'
export red='\e[31m\c'
export boldred='\e[1;31m\c'
export green='\e[32m\c'
export boldgreen='\e[1;32m\c'
export yellow='\e[33m\c'
export boldyellow='\e[1;33m\c'
export blue='\e[34m\c'
export boldblue='\e[1;34m\c'
export magenta='\e[35m\c'
export boldmagenta='\e[1;35m\c'
export cyan='\e[36m\c'
export boldcyan='\e[1;36m\c'
export white='\e[37m\c'
export boldwhite='\e[1;37m\c'

local default_msg="No message passed."
# Doesn't really need to be a local variable.

message=${1:-$default_msg} # Defaults to default message.
color=${2:-$black} # Defaults to black, if not specified.

echo -e "$color"
echo -e "$message"
tput sgr0 # Reset to normal.
echo -e "$black"
return
}

print_banner () {

## -- Banner -- ##

cecho "\t\c " $black
cecho "-- MYSQL PERFORMANCE TUNING PRIMER --" $boldblue
cecho "\t - By: Matthew Montgomery -" $black

}

## -- Find the location of the mysql.sock file -- ##

check_for_socket () {
if [ -z "$socket" ] ; then
# Use ~/my.cnf version
if [ -f ~/.my.cnf ] ; then
cnf_socket=$(grep ^socket ~/.my.cnf | awk -F \= '{ print $2 }' | head -1)
fi
if [ -S "$cnf_socket" ] ; then
socket=$cnf_socket
elif [ -S /var/lib/mysql/mysql.sock ] ; then
socket=/var/lib/mysql/mysql.sock
elif [ -S /var/run/mysqld/mysqld.sock ] ; then
socket=/var/run/mysqld/mysqld.sock
elif [ -S /tmp/mysql.sock ] ; then
socket=/tmp/mysql.sock
else
if [ -S "$ps_socket" ] ; then
socket=$ps_socket
fi
fi
fi
if [ -S "$socket" ] ; then
echo UP > /dev/null
else
cecho "\c"
cecho "No valid socket file \"$socket\" found!" $boldred
cecho "The mysqld process is not running or it is installed in a custom location." $red
cecho "If you are sure mysqld is running, execute script in \"prompt\" mode or set " $red
cecho "the socket= variable at the top of this script" $red
exit 1
fi
}


check_for_plesk_passwords () {

## -- Check for the existance of plesk and login using it's credentials -- ##

if [ -f /etc/psa/.psa.shadow ] ; then
mysql="mysql -S $socket -u admin -p$(cat /etc/psa/.psa.shadow)"
mysqladmin="mysqladmin -S $socket -u admin -p$(cat /etc/psa/.psa.shadow)"
else
mysql="mysql"
mysqladmin="mysqladmin"
# mysql="mysql -S $socket"
# mysqladmin="mysqladmin -S $socket"
fi
}

check_mysql_login () {

## -- Test for running mysql -- ##

is_up=$($mysqladmin ping 2>&1)
if [ "$is_up" = "mysqld is alive" ] ; then
echo UP > /dev/null
# echo $is_up
elif [ "$is_up" != "mysqld is alive" ] ; then
cecho "\n\c"
cecho "Using login values from ~/.my.cnf\n"
cecho "- INITIAL LOGIN ATTEMPT FAILED -\n" $boldred
if [ -z $prompted ] ; then
find_webmin_passwords
else
return 1
fi

else
cecho "Unknow exit status" $red
exit -1
fi
}

final_login_attempt () {
is_up=$($mysqladmin ping 2>&1)
if [ "$is_up" = "mysqld is alive" ] ; then
echo UP > /dev/null
elif [ "$is_up" != "mysqld is alive" ] ; then
cecho "- FINAL LOGIN ATTEMPT FAILED -\n" $boldred
cecho "Unable to log into socket: $socket" $boldred
exit 1
fi
}

second_login_failed () {

## -- create a ~/.my.cnf and exit when all else fails -- ##

cecho "Could not auto detect login info!\n"
cecho "Found Sockets: \n$found_socks\n"
cecho "Using: $socket" $red
read -p "Would you like to provide a different socket?: [y/N] " REPLY
case $REPLY in
yes | y | Y | YES)
read -p "Socket: " socket
;;
esac
read -p "Do you have your login handy ? [y/N] : " REPLY
case $REPLY in
yes | y | Y | YES)
answer1='yes'
read -p "User: " user
read -rp "Password: " pass
if [ -z $pass ] ; then
export mysql="$mysql -S$socket -u$user"
export mysqladmin="$mysqladmin -S$socket -u$user"
else
export mysql="$mysql -S$socket -u$user -p$pass"
export mysqladmin="$mysqladmin -S$socket -u$user -p$pass"
fi
;;
*)
cecho "\nPlease create a valid login to MySQL"
cecho "Or, set correct values for 'user=' and 'password=' in ~/.my.cnf"
;;
esac
cecho "\n\c"
read -p "Would you like me to create a ~/.my.cnf file for you? [y/N] : " REPLY
case $REPLY in
yes | y | Y | YES)
answer2='yes'
if [ ! -f ~/.my.cnf ] ; then
umask 077
echo -e "[client]\nuser=$user\npassword=$pass\nsocket=$socket" > ~/.my.cnf
if [ "$answer1" != 'yes' ] ; then
exit 1
else
final_login_attempt
return 0
fi
else
cecho "\n~/.my.cnf already exists!\n" $boldred
read -p "Replace ? [y/N] : " REPLY
if [ "$REPLY" = 'y' ] || [ "$REPLY" = 'Y' ] ; then
echo -e "[client]\nuser=$user\npassword=$pass\socket=$socket" > ~/.my.cnf
if [ "$answer1" != 'yes' ] ; then
exit 1
else
final_login_attempt
return 0
fi
else
cecho "Please set the 'user=' and 'password=' and 'socket=' values in ~/.my.cnf"
exit 1
fi
fi
;;
*)
if [ "$answer1" != 'yes' ] ; then
exit 1
else
final_login_attempt
return 0
fi
;;
esac
}

find_webmin_passwords () {

## -- populate the .my.cnf file using values harvested from Webmin -- ##

cecho "Testing for stored webmin passwords:\c"
if [ -f /etc/webmin/mysql/config ] ; then
user=$(grep ^login= /etc/webmin/mysql/config | cut -d "=" -f 2)
pass=$(grep ^pass= /etc/webmin/mysql/config | cut -d "=" -f 2)
if [ $user ] && [ $pass ] && [ ! -f ~/.my.cnf ] ; then
cecho "Setting login info as User: $user Password: $pass"
touch ~/.my.cnf
chmod 600 ~/.my.cnf
echo -e "[client]\nuser=$user\npassword=$pass" > ~/.my.cnf
cecho "Retrying login"
is_up=$($mysqladmin ping 2>&1)
if [ "$is_up" = "mysqld is alive" ] ; then
echo UP > /dev/null
else
second_login_failed
fi
echo
else
second_login_failed
echo
fi
else
cecho " None Found\n" $boldred
second_login_failed
fi
}

#########################################################################
# #
# Function to pull MySQL status variable #
# #
# Call using : #
# mysql_status \'Mysql_status_variable\' bash_dest_variable #
# #
#########################################################################

mysql_status () {
local status=$($mysql -Bse "show /*!50000 global */ status like $1" | awk '{ print $2 }')
export "$2"=$status
}

#########################################################################
# #
# Function to pull MySQL server runtime variable #
# #
# Call using : #
# mysql_variable \'Mysql_server_variable\' bash_dest_variable #
# - OR - #
# mysql_variableTSV \'Mysql_server_variable\' bash_dest_variable #
# #
#########################################################################

mysql_variable () {
local variable=$($mysql -Bse "show /*!50000 global */ variables like $1" | awk '{ print $2 }')
export "$2"=$variable
}
mysql_variableTSV () {
local variable=$($mysql -Bse "show /*!50000 global */ variables like $1" | awk -F \t '{ print $2 }')
export "$2"=$variable
}

float2int () {
local variable=$(echo "$1 / 1" | bc -l)
export "$2"=$variable
}

divide () {

# -- Divide two intigers -- #

usage="$0 dividend divisor '$variable' scale"
if [ $1 -ge 1 ] ; then
dividend=$1
else
cecho "Invalid Dividend" $red
echo $usage
exit 1
fi
if [ $2 -ge 1 ] ; then
divisor=$2
else
cecho "Invalid Divisor" $red
echo $usage
exit 1
fi
if [ ! -n $3 ] ; then
cecho "Invalid variable name" $red
echo $usage
exit 1
fi
if [ -z $4 ] ; then
scale=2
elif [ $4 -ge 0 ] ; then
scale=$4
else
cecho "Invalid scale" $red
echo $usage
exit 1
fi
export $3=$(echo "scale=$scale; $dividend / $divisor" | bc -l)
}

human_readable () {

#########################################################################
# #
# Convert a value in to human readable size and populate a variable #
# with the result. #
# #
# Call using: #
# human_readable $value 'variable name' [ places of precision] #
# #
#########################################################################

## value=$1
## variable=$2
scale=$3

if [ $1 -ge 1073741824 ] ; then
if [ -z $3 ] ; then
scale=2
fi
divide $1 1073741824 "$2" $scale
unit="G"
elif [ $1 -ge 1048576 ] ; then
if [ -z $3 ] ; then
scale=0
fi
divide $1 1048576 "$2" $scale
unit="M"
elif [ $1 -ge 1024 ] ; then
if [ -z $3 ] ; then
scale=0
fi
divide $1 1024 "$2" $scale
unit="K"
else
export "$2"=$1
unit="bytes"
fi
# let "$2"=$HR
}

human_readable_time () {

########################################################################
# #
# Function to produce human readable time #
# #
########################################################################

usage="$0 seconds 'variable'"
if [ -z $1 ] || [ -z $2 ] ; then
cecho $usage $red
exit 1
fi
days=$(echo "scale=0 ; $1 / 86400" | bc -l)
remainder=$(echo "scale=0 ; $1 % 86400" | bc -l)
hours=$(echo "scale=0 ; $remainder / 3600" | bc -l)
remainder=$(echo "scale=0 ; $remainder % 3600" | bc -l)
minutes=$(echo "scale=0 ; $remainder / 60" | bc -l)
seconds=$(echo "scale=0 ; $remainder % 60" | bc -l)
export $2="$days days $hours hrs $minutes min $seconds sec"
}

check_mysql_version () {

## -- Print Version Info -- ##

mysql_variable \'version\' mysql_version
mysql_variable \'version_compile_machine\' mysql_version_compile_machine

if [ "$major_version" = '3.23' ] || [ "$major_version" = '4.0' ] ; then
cecho "MySQL Version $mysql_version $mysql_version_compile_machine is EOL please upgrade to MySQL 4.1 or later" $boldred
else
cecho "MySQL Version $mysql_version $mysql_version_compile_machine"
fi


}

post_uptime_warning () {

#########################################################################
# #
# Present a reminder that mysql must run for a couple of days to #
# build up good numbers in server status variables before these tuning #
# suggestions should be used. #
# #
#########################################################################

mysql_status \'Uptime\' uptime
mysql_status \'Threads_connected\' threads
queries_per_sec=$(($questions/$uptime))
human_readable_time $uptime uptimeHR

cecho "Uptime = $uptimeHR"
cecho "Avg. qps = $queries_per_sec"
cecho "Total Questions = $questions"
cecho "Threads Connected = $threads"
echo

if [ $uptime -gt 172800 ] ; then
cecho "Server has been running for over 48hrs."
cecho "It should be safe to follow these recommendations"
else
cecho "Warning: \c" $boldred
cecho "Server has not been running for at least 48hrs." $boldred
cecho "It may not be safe to use these recommendations" $boldred

fi
echo ""
cecho "To find out more information on how each of these" $red
cecho "runtime variables effects performance visit:" $red
if [ "$major_version" = '3.23' ] || [ "$major_version" = '4.0' ] || [ "$major_version" = '4.1' ] ; then
cecho "http://dev.mysql.com/doc/refman/4.1/en/server-system-variables.html" $boldblue
elif [ "$major_version" = '5.0' ] || [ "$major_version" = '5.1' ] ; then
cecho "http://dev.mysql.com/doc/refman/$major_version/en/server-system-variables.html" $boldblue
else
cecho "UNSUPPORTED MYSQL VERSION" $boldred
exit 1
fi
cecho "Visit http://www.mysql.com/products/enterprise/advisors.html" $boldblue
cecho "for info about MySQL's Enterprise Monitoring and Advisory Service" $boldblue
}

check_slow_queries () {

## -- Slow Queries -- ##

cecho "SLOW QUERIES" $boldblue

mysql_status \'Slow_queries\' slow_queries
mysql_variable \'long_query_time\' long_query_time
mysql_variable \'log%queries\' log_slow_queries

prefered_query_time=5
if [ -e /etc/my.cnf ] ; then
if [ -z $log_slow_queries ] ; then
log_slow_queries=$(grep log-slow-queries /etc/my.cnf)
fi
fi

if [ "$log_slow_queries" = 'ON' ] ; then
cecho "The slow query log is enabled."
elif [ "$log_slow_queries" = 'OFF' ] ; then
cecho "The slow query log is \c"
cecho "NOT \c" $boldred
cecho "enabled."
elif [ -z $log_slow_queries ] ; then
cecho "The slow query log is \c"
cecho "NOT \c" $boldred
cecho "enabled."
else
cecho "Error: $log_slow_queries" $boldred
fi
cecho "Current long_query_time = $long_query_time sec."
cecho "You have \c"
cecho "$slow_queries \c" $boldred
cecho "out of \c"
cecho "$questions \c" $boldred
cecho "that take longer than $long_query_time sec. to complete"

if [ "$major_version" = '5.1' ]; then
float2int long_query_time long_query_timeInt
else
long_query_timeInt=$(($long_query_time))
fi

if [ $long_query_timeInt -gt $prefered_query_time ] ; then
cecho "Your long_query_time may be too high, I typically set this under $prefered_query_time sec." $red
else
cecho "Your long_query_time seems to be fine" $green
fi

}

check_binary_log () {

## -- Binary Log -- ##

cecho "BINARY UPDATE LOG" $boldblue

mysql_variable \'log_bin\' log_bin
mysql_variable \'max_binlog_size\' max_binlog_size
mysql_variable \'expire_logs_days\' expire_logs_days
mysql_variable \'sync_binlog\' sync_binlog
# mysql_variable \'max_binlog_cache_size\' max_binlog_cache_size

if [ "$log_bin" = 'ON' ] ; then
cecho "The binary update log is enabled"
if [ -z "$max_binlog_size" ] ; then
cecho "The max_binlog_size is not set. The binary log will rotate when it reaches 1GB." $red
fi
if [ "$expire_logs_days" -eq 0 ] ; then
cecho "The expire_logs_days is not set." $boldred
cecho "The mysqld will retain the entire binary log until \c" $red
cecho "RESET MASTER or PURGE MASTER LOGS commands are run manually" $red
cecho "Setting expire_logs_days will allow you to remove old binary logs automatically" $yellow
cecho "See http://dev.mysql.com/doc/refman/$major_version/en/purge-master-logs.html" $yellow
fi
if [ "$sync_binlog" = 0 ] ; then
cecho "Binlog sync is not enabled, you could loose binlog records during a server crash" $red
fi
else
cecho "The binary update log is \c"
cecho "NOT \c" $boldred
cecho "enabled."
cecho "You will not be able to do point in time recovery" $red
cecho "See http://dev.mysql.com/doc/refman/$major_version/en/point-in-time-recovery.html" $yellow
fi
}

check_used_connections () {

## -- Used Connections -- ##

mysql_variable \'max_connections\' max_connections
mysql_status \'Max_used_connections\' max_used_connections
mysql_status \'Threads_connected\' threads_connected

connections_ratio=$(($max_used_connections*100/$max_connections))

cecho "MAX CONNECTIONS" $boldblue
cecho "Current max_connections = $max_connections"
cecho "Current threads_connected = $threads_connected"
cecho "Historic max_used_connections = $max_used_connections"
cecho "The number of used connections is \c"
if [ $connections_ratio -ge 85 ] ; then
txt_color=$red
error=1
elif [ $connections_ratio -le 10 ] ; then
txt_color=$red
error=2
else
txt_color=$green
error=0
fi
# cecho "$max_used_connections \c" $txt_color
# cecho "which is \c"
cecho "$connections_ratio% \c" $txt_color
cecho "of the configured maximum."

if [ $error -eq 1 ] ; then
cecho "You should raise max_connections" $txt_color
elif [ $error -eq 2 ] ; then
cecho "You are using less than 10% of your configured max_connections." $txt_color
cecho "Lowering max_connections could help to avoid an over-allocation of memory" $txt_color
cecho "See \"MEMORY USAGE\" section to make sure you are not over-allocating" $txt_color
else
cecho "Your max_connections variable seems to be fine." $txt_color
fi
unset txt_color
}

check_threads() {

## -- Worker Threads -- ##

cecho "WORKER THREADS" $boldblue

mysql_status \'Threads_created\' threads_created1
sleep 1
mysql_status \'Threads_created\' threads_created2

mysql_status \'Threads_cached\' threads_cached
mysql_status \'Uptime\' uptime
mysql_variable \'thread_cache_size\' thread_cache_size

historic_threads_per_sec=$(($threads_created1/$uptime))
current_threads_per_sec=$(($threads_created2-$threads_created1))

cecho "Current thread_cache_size = $thread_cache_size"
cecho "Current threads_cached = $threads_cached"
cecho "Current threads_per_sec = $current_threads_per_sec"
cecho "Historic threads_per_sec = $historic_threads_per_sec"

if [ $historic_threads_per_sec -ge 2 ] && [ $threads_cached -le 1 ] ; then
cecho "Threads created per/sec are overrunning threads cached" $red
cecho "You should raise thread_cache_size" $red
elif [ $current_threads_per_sec -ge 2 ] ; then
cecho "Threads created per/sec are overrunning threads cached" $red
cecho "You should raise thread_cache_size" $red
else
cecho "Your thread_cache_size is fine" $green
fi
}

check_key_buffer_size () {

## -- Key buffer Size -- ##

cecho "KEY BUFFER" $boldblue

mysql_status \'Key_read_requests\' key_read_requests
mysql_status \'Key_reads\' key_reads
mysql_status \'Key_blocks_used\' key_blocks_used
mysql_status \'Key_blocks_unused\' key_blocks_unused
mysql_variable \'key_cache_block_size\' key_cache_block_size
mysql_variable \'key_buffer_size\' key_buffer_size
mysql_variable \'datadir\' datadir
mysql_variable \'version_compile_machine\' mysql_version_compile_machine
myisam_indexes=$($mysql -Bse "/*!50000 SELECT SUM(INDEX_LENGTH) from information_schema.TABLES where ENGINE='MyISAM' */")

if [ -z $myisam_indexes ] ; then
myisam_indexes=$(find $datadir -name '*.MYI' -exec du $duflags '{}' \; 2>&1 | awk '{ s += $1 } END { printf("%.0f\n", s )}')
fi

if [ $key_reads -eq 0 ] ; then
cecho "No key reads?!" $boldred
cecho "Seriously look into using some indexes" $red
key_cache_miss_rate=0
key_buffer_free=$(echo "$key_blocks_unused * $key_cache_block_size / $key_buffer_size * 100" | bc -l )
key_buffer_freeRND=$(echo "scale=0; $key_buffer_free / 1" | bc -l)
else
key_cache_miss_rate=$(($key_read_requests/$key_reads))
if [ ! -z $key_blocks_unused ] ; then
key_buffer_free=$(echo "$key_blocks_unused * $key_cache_block_size / $key_buffer_size * 100" | bc -l )
key_buffer_freeRND=$(echo "scale=0; $key_buffer_free / 1" | bc -l)
else
key_buffer_free='Unknown'
key_buffer_freeRND=75
fi
fi

human_readable $myisam_indexes myisam_indexesHR
cecho "Current MyISAM index space = $myisam_indexesHR $unit"

human_readable $key_buffer_size key_buffer_sizeHR
cecho "Current key_buffer_size = $key_buffer_sizeHR $unit"
cecho "Key cache miss rate is 1 : $key_cache_miss_rate"
cecho "Key buffer free ratio = $key_buffer_freeRND %"

if [ "$major_version" = '5.1' ] && [ $mysql_version_num -lt '5123' ] ; then
if [ $key_buffer_size -ge 4294967296 ] && ( echo "x86_64 ppc64 ia64 sparc64 i686" | grep -q $mysql_version_compile_machine ) ; then
cecho "Using key_buffer_size > 4GB will cause instability in versions prior to 5.1.23 " $boldred
cecho "See Bug#5731, Bug#29419, Bug#29446" $boldred
fi
fi
if [ "$major_version" = '5.0' ] && [ $mysql_version_num -lt '5052' ] ; then
if [ $key_buffer_size -ge 4294967296 ] && ( echo "x86_64 ppc64 ia64 sparc64 i686" | grep -q $mysql_version_compile_machine ) ; then
cecho "Using key_buffer_size > 4GB will cause instability in versions prior to 5.0.52 " $boldred
cecho "See Bug#5731, Bug#29419, Bug#29446" $boldred
fi
fi
if [ "$major_version" = '4.1' -o "$major_version" = '4.0' ] && [ $key_buffer_size -ge 4294967296 ] && ( echo "x86_64 ppc64 ia64 sparc64 i686" | grep -q $mysql_version_compile_machine ) ; then
cecho "Using key_buffer_size > 4GB will cause instability in versions prior to 5.0.52 " $boldred
cecho "Reduce key_buffer_size to a safe value" $boldred
cecho "See Bug#5731, Bug#29419, Bug#29446" $boldred
fi

if [ $key_cache_miss_rate -le 100 ] && [ $key_cache_miss_rate -gt 0 ] && [ $key_buffer_freeRND -le 20 ]; then
cecho "You could increase key_buffer_size" $boldred
cecho "It is safe to raise this up to 1/4 of total system memory;"
cecho "assuming this is a dedicated database server."
elif [ $key_buffer_freeRND -le 20 ] && [ $key_buffer_size -le $myisam_indexes ] ; then
cecho "You could increase key_buffer_size" $boldred
cecho "It is safe to raise this up to 1/4 of total system memory;"
cecho "assuming this is a dedicated database server."
elif [ $key_cache_miss_rate -ge 10000 ] || [ $key_buffer_freeRND -le 50 ] ; then
cecho "Your key_buffer_size seems to be too high." $red
cecho "Perhaps you can use these resources elsewhere" $red
else
cecho "Your key_buffer_size seems to be fine" $green
fi
}

check_query_cache () {

## -- Query Cache -- ##

cecho "QUERY CACHE" $boldblue

mysql_variable \'version\' mysql_version
mysql_variable \'query_cache_size\' query_cache_size
mysql_variable \'query_cache_limit\' query_cache_limit
mysql_variable \'query_cache_min_res_unit\' query_cache_min_res_unit
mysql_status \'Qcache_free_memory\' qcache_free_memory
mysql_status \'Qcache_total_blocks\' qcache_total_blocks
mysql_status \'Qcache_free_blocks\' qcache_free_blocks
mysql_status \'Qcache_lowmem_prunes\' qcache_lowmem_prunes

if [ -z $query_cache_size ] ; then
cecho "You are using MySQL $mysql_version, no query cache is supported." $red
cecho "I recommend an upgrade to MySQL 4.1 or better" $red
elif [ $query_cache_size -eq 0 ] ; then
cecho "Query cache is supported but not enabled" $red
cecho "Perhaps you should set the query_cache_size" $red
else
qcache_used_memory=$(($query_cache_size-$qcache_free_memory))
qcache_mem_fill_ratio=$(echo "scale=2; $qcache_used_memory * 100 / $query_cache_size" | bc -l)
qcache_mem_fill_ratioHR=$(echo "scale=0; $qcache_mem_fill_ratio / 1" | bc -l)

cecho "Query cache is enabled" $green
human_readable $query_cache_size query_cache_sizeHR
cecho "Current query_cache_size = $query_cache_sizeHR $unit"
human_readable $qcache_used_memory qcache_used_memoryHR
cecho "Current query_cache_used = $qcache_used_memoryHR $unit"
human_readable $query_cache_limit query_cache_limitHR
cecho "Current query_cache_limit = $query_cache_limitHR $unit"
cecho "Current Query cache Memory fill ratio = $qcache_mem_fill_ratio %"
human_readable $query_cache_min_res_unit query_cache_min_res_unitHR
cecho "Current query_cache_min_res_unit = $query_cache_min_res_unitHR $unit"
if [ $qcache_free_blocks -gt 2 ] && [ $qcache_total_blocks -gt 0 ] ; then
qcache_percent_fragmented=$(echo "scale=2; $qcache_free_blocks * 100 / $qcache_total_blocks" | bc -l)
qcache_percent_fragmentedHR=$(echo "scale=0; $qcache_percent_fragmented / 1" | bc -l)
if [ $qcache_percent_fragmentedHR -gt 20 ] ; then
cecho "Query Cache is $qcache_percent_fragmentedHR % fragmented" $red
cecho "Run \"FLUSH QUERY CACHE\" periodically to defragment the query cache memory" $red
cecho "If you have many small queries lower 'query_cache_min_res_unit' to reduce fragmentation." $red
fi
fi

if [ $qcache_mem_fill_ratioHR -le 25 ] ; then
cecho "Your query_cache_size seems to be too high." $red
cecho "Perhaps you can use these resources elsewhere" $red
fi
if [ $qcache_lowmem_prunes -ge 50 ] && [ $qcache_mem_fill_ratioHR -ge 80 ]; then
cecho "However, \c"
cecho "$qcache_lowmem_prunes \c" $boldred
cecho "queries have been removed from the query cache due to lack of memory"
cecho "Perhaps you should raise query_cache_size" $boldred
fi
cecho "MySQL won't cache query results that are larger than query_cache_limit in size" $yellow
fi

}

check_sort_operations () {

## -- Sort Operations -- ##

cecho "SORT OPERATIONS" $boldblue

mysql_status \'Sort_merge_passes\' sort_merge_passes
mysql_status \'Sort_scan\' sort_scan
mysql_status \'Sort_range\' sort_range
mysql_variable \'sort_buffer%\' sort_buffer_size
mysql_variable \'read_rnd_buffer_size\' read_rnd_buffer_size

total_sorts=$(($sort_scan+$sort_range))
if [ -z $read_rnd_buffer_size ] ; then
mysql_variable \'record_buffer\' read_rnd_buffer_size
fi

## Correct for rounding error in mysqld where 512K != 524288 ##
sort_buffer_size=$(($sort_buffer_size+8))
read_rnd_buffer_size=$(($read_rnd_buffer_size+8))

human_readable $sort_buffer_size sort_buffer_sizeHR
cecho "Current sort_buffer_size = $sort_buffer_sizeHR $unit"

human_readable $read_rnd_buffer_size read_rnd_buffer_sizeHR
cecho "Current \c"
if [ "$major_version" = '3.23' ] ; then
cecho "record_rnd_buffer \c"
else
cecho "read_rnd_buffer_size \c"
fi
cecho "= $read_rnd_buffer_sizeHR $unit"

if [ $total_sorts -eq 0 ] ; then
cecho "No sort operations have been performed"
passes_per_sort=0
fi
if [ $sort_merge_passes -ne 0 ] ; then
passes_per_sort=$(($sort_merge_passes/$total_sorts))
else
passes_per_sort=0
fi

if [ $passes_per_sort -ge 2 ] ; then
cecho "On average \c"
cecho "$passes_per_sort \c" $boldred
cecho "sort merge passes are made per sort operation"
cecho "You should raise your sort_buffer_size"
cecho "You should also raise your \c"
if [ "$major_version" = '3.23' ] ; then
cecho "record_rnd_buffer_size"
else
cecho "read_rnd_buffer_size"
fi
else
cecho "Sort buffer seems to be fine" $green
fi
}

check_join_operations () {

## -- Joins -- ##

cecho "JOINS" $boldblue

mysql_status \'Select_full_join\' select_full_join
mysql_status \'Select_range_check\' select_range_check
mysql_variable \'join_buffer%\' join_buffer_size

## Some 4K is dropped from join_buffer_size adding it back to make sane ##
## handling of human-readable conversion ##

join_buffer_size=$(($join_buffer_size+4096))

human_readable $join_buffer_size join_buffer_sizeHR 2

cecho "Current join_buffer_size = $join_buffer_sizeHR $unit"
cecho "You have had $select_full_join queries where a join could not use an index properly"

if [ $select_range_check -eq 0 ] && [ $select_full_join -eq 0 ] ; then
cecho "Your joins seem to be using indexes properly" $green
fi
if [ $select_full_join -gt 0 ] ; then
print_error='true'
raise_buffer='true'
fi
if [ $select_range_check -gt 0 ] ; then
cecho "You have had $select_range_check joins without keys that check for key usage after each row" $red
print_error='true'
raise_buffer='true'
fi

## For Debuging ##
# print_error='true'
if [ $join_buffer_size -ge 4194304 ] ; then
cecho "join_buffer_size >= 4 M" $boldred
cecho "This is not advised" $boldred
raise_buffer=
fi

if [ $print_error ] ; then
if [ "$major_version" = '3.23' ] || [ "$major_version" = '4.0' ] ; then
cecho "You should enable \"log-long-format\" "
elif [ "$major_version" = '4.1' ] || [ "$major_version" = '5.0' ] || [ "$major_version" = '5.1' ] ; then
cecho "You should enable \"log-queries-not-using-indexes\""
fi
cecho "Then look for non indexed joins in the slow query log."
if [ $raise_buffer ] ; then
cecho "If you are unable to optimize your queries you may want to increase your"
cecho "join_buffer_size to accommodate larger joins in one pass.\n"
cecho "Note! This script will still suggest raising the join_buffer_size when" $boldred
cecho "ANY joins not using indexes are found." $boldred
fi
fi

# XXX Add better tests for join_buffer_size XXX #
}

check_tmp_tables () {

## -- Temp Tables -- ##

cecho "TEMP TABLES" $boldblue

mysql_status \'Created_tmp_tables\' created_tmp_tables
mysql_status \'Created_tmp_disk_tables\' created_tmp_disk_tables
mysql_variable \'tmp_table_size\' tmp_table_size
mysql_variable \'max_heap_table_size\' max_heap_table_size


if [ $created_tmp_tables -eq 0 ] ; then
tmp_disk_tables=0
else
tmp_disk_tables=$((created_tmp_disk_tables*100/(created_tmp_tables+created_tmp_disk_tables)))
fi
human_readable $max_heap_table_size max_heap_table_sizeHR
cecho "Current max_heap_table_size = $max_heap_table_sizeHR $unit"

human_readable $tmp_table_size tmp_table_sizeHR
cecho "Current tmp_table_size = $tmp_table_sizeHR $unit"

cecho "Of $created_tmp_tables temp tables, $tmp_disk_tables% were created on disk"
if [ $tmp_table_size -gt $max_heap_table_size ] ; then
cecho "Effective in-memory tmp_table_size is limited to max_heap_table_size." $yellow
fi
if [ $tmp_disk_tables -ge 25 ] ; then
cecho "Perhaps you should increase your tmp_table_size and/or max_heap_table_size" $boldred
cecho "to reduce the number of disk-based temporary tables" $boldred
cecho "Note! BLOB and TEXT columns are not allow in memory tables." $yellow
cecho "If you are using these columns raising these values might not impact your " $yellow
cecho "ratio of on disk temp tables." $yellow
else
cecho "Created disk tmp tables ratio seems fine" $green
fi
}

check_open_files () {

## -- Open Files Limit -- ##
cecho "OPEN FILES LIMIT" $boldblue

mysql_variable \'open_files_limit\' open_files_limit
mysql_status \'Open_files\' open_files

if [ -z $open_files_limit ] || [ $open_files_limit -eq 0 ] ; then
open_files_limit=$(ulimit -n)
cant_override=1
else
cant_override=0
fi
cecho "Current open_files_limit = $open_files_limit files"

open_files_ratio=$(($open_files*100/$open_files_limit))

cecho "The open_files_limit should typically be set to at least 2x-3x" $yellow
cecho "that of table_cache if you have heavy MyISAM usage." $yellow
if [ $open_files_ratio -ge 75 ] ; then
cecho "You currently have open more than 75% of your open_files_limit" $boldred
if [ $cant_override -eq 1 ] ; then
cecho "You should set a higer value for ulimit -u in the mysql startup script then restart mysqld" $boldred
cecho "MySQL 3.23 users : This is just a guess based upon the current shell's ulimit -u value" $yellow
elif [ $cant_override -eq 0 ] ; then
cecho "You should set a higher value for open_files_limit in my.cnf" $boldred
else
cecho "ERROR can't determine if mysqld override of ulimit is allowed" $boldred
exit 1
fi
else
cecho "Your open_files_limit value seems to be fine" $green
fi



}

check_table_cache () {

## -- Table Cache -- ##

cecho "TABLE CACHE" $boldblue

mysql_variable \'datadir\' datadir
mysql_variable \'table_cache\' table_cache

## /* MySQL +5.1 version of table_cache */ ##
mysql_variable \'table_open_cache\' table_open_cache
mysql_variable \'table_definition_cache\' table_definition_cache

mysql_status \'Open_tables\' open_tables
mysql_status \'Opened_tables\' opened_tables
mysql_status \'Open_table_definitions\' open_table_definitions

table_count=$($mysql -Bse "/*!50000 SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE' */")

if [ -z "$table_count" ] ; then
if [ "$UID" != "$socket_owner" ] && [ "$UID" != "0" ] ; then
cecho "You are not '$socket_owner' or 'root'" $red
cecho "I am unable to determine the table_count!" $red
else
table_count=$(find $datadir 2>&1 | grep -c .frm$)
fi
fi
if [ $table_open_cache ] ; then
table_cache=$table_open_cache
fi

if [ $opened_tables -ne 0 ] && [ $table_cache -ne 0 ] ; then
table_cache_hit_rate=$(($open_tables*100/$opened_tables))
table_cache_fill=$(($open_tables*100/$table_cache))
elif [ $opened_tables -eq 0 ] && [ $table_cache -ne 0 ] ; then
table_cache_hit_rate=100
table_cache_fill=$(($open_tables*100/$table_cache))
else
cecho "ERROR no table_cache ?!" $boldred
exit 1
fi
if [ $table_cache ] && [ ! $table_open_cache ] ; then
cecho "Current table_cache value = $table_cache tables"
fi
if [ $table_open_cache ] ; then
cecho "Current table_open_cache = $table_open_cache tables"
cecho "Current table_definition_cache = $table_definition_cache tables"
fi
if [ $table_count ] ; then
cecho "You have a total of $table_count tables"
fi

if [ $table_cache_fill -lt 95 ] ; then
cecho "You have \c"
cecho "$open_tables \c" $green
cecho "open tables."
cecho "The table_cache value seems to be fine" $green
elif [ $table_cache_hit_rate -le 85 -o $table_cache_fill -ge 95 ]; then
cecho "You have \c"
cecho "$open_tables \c" $boldred
cecho "open tables."
cecho "Current table_cache hit rate is \c"
cecho "$table_cache_hit_rate%\c" $boldred
cecho ", while \c"
cecho "$table_cache_fill% \c" $boldred
cecho "of your table cache is in use"
cecho "You should probably increase your table_cache" $red
else
cecho "Current table_cache hit rate is \c"
cecho "$table_cache_hit_rate%\c" $green
cecho ", while \c"
cecho "$table_cache_fill% \c" $green
cecho "of your table cache is in use"
cecho "The table cache value seems to be fine" $green
fi
if [ $table_definition_cache ] && [ $table_definition_cache -le $table_count ] && [ $table_count -ge 100 ] ; then
cecho "You should probably increase your table_definition_cache value." $red
fi
}

check_table_locking () {

## -- Table Locking -- ##

cecho "TABLE LOCKING" $boldblue

mysql_status \'Table_locks_waited\' table_locks_waited
mysql_status \'Table_locks_immediate\' table_locks_immediate
mysql_variable \'concurrent_insert\' concurrent_insert
mysql_variable \'low_priority_updates\' low_priority_updates
if [ "$concurrent_insert" = 'ON' ]; then
concurrent_insert=1
elif [ "$concurrent_insert" = 'OFF' ]; then
concurrent_insert=0
fi

cecho "Current Lock Wait ratio = \c"
if [ $table_locks_waited -gt 0 ]; then
immediate_locks_miss_rate=$(($table_locks_immediate/$table_locks_waited))
cecho "1 : $immediate_locks_miss_rate" $red
else
immediate_locks_miss_rate=99999 # perfect
cecho "0 : $questions"
fi
if [ $immediate_locks_miss_rate -lt 5000 ] ; then
cecho "You may benefit from selective use of InnoDB."
if [ "$low_priority_updates" = 'OFF' ] ; then
cecho "If you have long running SELECT's against MyISAM tables and perform"
cecho "frequent updates consider setting 'low_priority_updates=1'"
fi
if [ $concurrent_insert -le 1 ] && [ "$major_version" = '5.0' -o "$major_version" = '5.1' ] ; then
cecho "If you have a high concurrency of inserts on Dynamic row-length tables"
cecho "consider setting 'concurrent_insert=2'."
fi
else
cecho "Your table locking seems to be fine" $green
fi
}

check_table_scans () {

## -- Table Scans -- ##

cecho "TABLE SCANS" $boldblue

mysql_status \'Com_select\' com_select
mysql_status \'Handler_read_rnd_next\' read_rnd_next
mysql_variable \'read_buffer_size\' read_buffer_size

if [ -z $read_buffer_size ] ; then
mysql_variable \'record_buffer\' read_buffer_size
fi

human_readable $read_buffer_size read_buffer_sizeHR
cecho "Current read_buffer_size = $read_buffer_sizeHR $unit"

if [ $com_select -gt 0 ] ; then
full_table_scans=$(($read_rnd_next/$com_select))
cecho "Current table scan ratio = $full_table_scans : 1"
if [ $full_table_scans -ge 4000 ] && [ $read_buffer_size -le 2097152 ] ; then
cecho "You have a high ratio of sequential access requests to SELECTs" $red
cecho "You may benefit from raising \c" $red
if [ "$major_version" = '3.23' ] ; then
cecho "record_buffer \c" $red
else
cecho "read_buffer_size \c" $red
fi
cecho "and/or improving your use of indexes." $red
elif [ $read_buffer_size -gt 8388608 ] ; then
cecho "read_buffer_size is over 8 MB \c" $red
cecho "there is probably no need for such a large read_buffer" $red

else
cecho "read_buffer_size seems to be fine" $green
fi
else
cecho "read_buffer_size seems to be fine" $green
fi
}


check_innodb_status () {

## -- InnoDB -- ##

mysql_variable \'have_innodb\' have_innodb

if [ "$have_innodb" = "YES" ] ; then
mysql_variable \'innodb_buffer_pool_size\' innodb_buffer_pool_size
mysql_variable \'innodb_additional_mem_pool_size\' innodb_additional_mem_pool_size
mysql_variable \'innodb_fast_shutdown\' innodb_fast_shutdown
mysql_variable \'innodb_flush_log_at_trx_commit\' innodb_flush_log_at_trx_commit
mysql_variable \'innodb_locks_unsafe_for_binlog\' innodb_locks_unsafe_for_binlog
mysql_variable \'innodb_log_buffer_size\' innodb_log_buffer_size
mysql_variable \'innodb_log_file_size\' innodb_log_file_size
mysql_variable \'innodb_log_files_in_group\' innodb_log_files_in_group
mysql_variable \'innodb_safe_binlog\' innodb_safe_binlog
mysql_variable \'innodb_thread_concurrency\' innodb_thread_concurrency

echo
cecho "INNODB STATUS" $boldblue
innodb_indexes=$($mysql -Bse "/*!50000 SELECT SUM(INDEX_LENGTH) from information_schema.TABLES where ENGINE='InnoDB' */")

if [ ! -z "$innodb_indexes" ] ; then

mysql_status \'Innodb_buffer_pool_pages_data\' innodb_buffer_pool_pages_data
mysql_status \'Innodb_buffer_pool_pages_misc\' innodb_buffer_pool_pages_misc
mysql_status \'Innodb_buffer_pool_pages_free\' innodb_buffer_pool_pages_free
mysql_status \'Innodb_buffer_pool_pages_total\' innodb_buffer_pool_pages_total

mysql_status \'Innodb_buffer_pool_read_ahead_seq\' innodb_buffer_pool_read_ahead_seq
mysql_status \'Innodb_buffer_pool_read_requests\' innodb_buffer_pool_read_requests

mysql_status \'Innodb_os_log_pending_fsyncs\' innodb_os_log_pending_fsyncs
mysql_status \'Innodb_os_log_pending_writes\' innodb_os_log_pending_writes
mysql_status \'Innodb_log_waits\' innodb_log_waits

mysql_status \'Innodb_row_lock_time\' innodb_row_lock_time
mysql_status \'Innodb_row_lock_waits\' innodb_row_lock_waits

human_readable $innodb_indexes innodb_indexesHR
cecho "Current InnoDB index space = $innodb_indexesHR $unit"
else
cecho "Cannot find InnoDB index space prior to 5.0.x" $red
fi

human_readable $innodb_buffer_pool_size innodb_buffer_pool_sizeHR
cecho "Current innodb_buffer_pool_size = $innodb_buffer_pool_sizeHR $unit"
cecho "Depending on how much space your innodb indexes take up it may be safe"
cecho "to increase this value to up to 1 / 3 of total system memory"
echo
$mysql -s -e "SHOW /*!50000 ENGINE */ INNODB STATUS\G"
else
cecho "No InnoDB Support Enabled!" $boldred
fi
}

total_memory_used () {

## -- Total Memory Usage -- ##
cecho "MEMORY USAGE" $boldblue

mysql_variable \'read_buffer_size\' read_buffer_size
mysql_variable \'read_rnd_buffer_size\' read_rnd_buffer_size
mysql_variable \'sort_buffer_size\' sort_buffer_size
mysql_variable \'thread_stack\' thread_stack
mysql_variable \'max_connections\' max_connections
mysql_variable \'join_buffer_size\' join_buffer_size
mysql_variable \'tmp_table_size\' tmp_table_size
mysql_variable \'max_heap_table_size\' max_heap_table_size
mysql_variable \'log_bin\' log_bin
mysql_status \'Max_used_connections\' max_used_connections

if [ "$major_version" = "3.23" ] ; then
mysql_variable \'record_buffer\' read_buffer_size
mysql_variable \'record_rnd_buffer\' read_rnd_buffer_size
mysql_variable \'sort_buffer\' sort_buffer_size
fi

if [ "$log_bin" = "ON" ] ; then
mysql_variable \'binlog_cache_size\' binlog_cache_size
else
binlog_cache_size=0
fi

if [ $max_heap_table_size -le $tmp_table_size ] ; then
effective_tmp_table_size=$max_heap_table_size
else
effective_tmp_table_size=$tmp_table_size
fi


per_thread_buffers=$(echo "($read_buffer_size+$read_rnd_buffer_size+$sort_buffer_size+$thread_stack+$join_buffer_size+$binlog_cache_size)*$max_connections" | bc -l)
per_thread_max_buffers=$(echo "($read_buffer_size+$read_rnd_buffer_size+$sort_buffer_size+$thread_stack+$join_buffer_size+$binlog_cache_size)*$max_used_connections" | bc -l)

mysql_variable \'innodb_buffer_pool_size\' innodb_buffer_pool_size
if [ -z $innodb_buffer_pool_size ] ; then
innodb_buffer_pool_size=0
fi

mysql_variable \'innodb_additional_mem_pool_size\' innodb_additional_mem_pool_size
if [ -z $innodb_additional_mem_pool_size ] ; then
innodb_additional_mem_pool_size=0
fi

mysql_variable \'innodb_log_buffer_size\' innodb_log_buffer_size
if [ -z $innodb_log_buffer_size ] ; then
innodb_log_buffer_size=0
fi

mysql_variable \'key_buffer_size\' key_buffer_size

mysql_variable \'query_cache_size\' query_cache_size
if [ -z $query_cache_size ] ; then
query_cache_size=0
fi

global_buffers=$(echo "$innodb_buffer_pool_size+$innodb_additional_mem_pool_size+$innodb_log_buffer_size+$key_buffer_size+$query_cache_size" | bc -l)


max_memory=$(echo "$global_buffers+$per_thread_max_buffers" | bc -l)
total_memory=$(echo "$global_buffers+$per_thread_buffers" | bc -l)

pct_of_sys_mem=$(echo "scale=0; $total_memory*100/$physical_memory" | bc -l)

if [ $pct_of_sys_mem -gt 90 ] ; then
txt_color=$boldred
error=1
else
txt_color=
error=0
fi

human_readable $max_memory max_memoryHR
cecho "Max Memory Ever Allocated : $max_memoryHR $unit" $txt_color
human_readable $per_thread_buffers per_thread_buffersHR
cecho "Configured Max Per-thread Buffers : $per_thread_buffersHR $unit" $txt_color
human_readable $global_buffers global_buffersHR
cecho "Configured Max Global Buffers : $global_buffersHR $unit" $txt_color
human_readable $total_memory total_memoryHR
cecho "Configured Max Memory Limit : $total_memoryHR $unit" $txt_color
# human_readable $effective_tmp_table_size effective_tmp_table_sizeHR
# cecho "Plus $effective_tmp_table_sizeHR $unit per temporary table created"
human_readable $physical_memory physical_memoryHR
cecho "Physical Memory : $physical_memoryHR $unit" $txt_color
if [ $error -eq 1 ] ; then
cecho "\nMax memory limit exceeds 90% of physical memory" $txt_color
else
cecho "Max memory limit seem to be within acceptable norms" $green
fi
unset txt_color
}

snarky () {

## -- Be Snarky -- ##

fortune=$(which fortune 2>/dev/null)
if [ -z $fortune ] ; then
echo "What the hell sort of straight-lace bastard doesn't have fortune installed?"
else
$fortune
fi
}

## Required Functions ##

login_validation () {
check_for_socket # determine the socket location -- 1st login
check_for_plesk_passwords # determine the login method -- 2nd login
check_mysql_login # determine if mysql is accepting login -- 3rd login
export major_version=$($mysql -Bse "SELECT SUBSTRING_INDEX(VERSION(), '.', +2)")
export mysql_version_num=$($mysql -Bse "SELECT LEFT(REPLACE(SUBSTRING_INDEX(VERSION(), '-', +1), '.', ''),4)" )
}

shared_info () {
export major_version=$($mysql -Bse "SELECT SUBSTRING_INDEX(VERSION(), '.', +2)")
export mysql_version_num=$($mysql -Bse "SELECT LEFT(REPLACE(SUBSTRING_INDEX(VERSION(), '-', +1), '.', ''),4)" )
mysql_status \'Questions\' questions
# socket_owner=$(find -L $socket -printf '%u\n')
socket_owner=$(ls -nH $socket | awk '{ print $3 }')
}


get_system_info () {

export OS=$(uname)

# Get information for various UNIXes
if [ "$OS" = 'Darwin' ]; then
ps_socket=$(netstat -ln | awk '/mysql(d)?\.sock/ { print $9 }' | head -1)
found_socks=$(netstat -ln | awk '/mysql(d)?\.sock/ { print $9 }')
export physical_memory=$(sysctl -n hw.memsize)
export duflags=''
elif [ "$OS" = 'FreeBSD' ] || [ "$OS" = 'OpenBSD' ]; then
## On FreeBSD must be root to locate sockets.
ps_socket=$(netstat -ln | awk '/mysql(d)?\.sock/ { print $9 }' | head -1)
found_socks=$(netstat -ln | awk '/mysql(d)?\.sock/ { print $9 }')
export physical_memory=$(sysctl -n hw.realmem)
export duflags=''
elif [ "$OS" = 'Linux' ] ; then
## Includes SWAP
## export physical_memory=$(free -b | grep -v buffers | awk '{ s += $2 } END { printf("%.0f\n", s ) }')
ps_socket=$(netstat -ln | awk '/mysql(d)?\.sock/ { print $9 }' | head -1)
found_socks=$(netstat -ln | awk '/mysql(d)?\.sock/ { print $9 }')
export physical_memory=$(awk '/^MemTotal/ { printf("%.0f", $2*1024 ) }' < /proc/meminfo) export duflags='-b' elif [ "$OS" = 'SunOS' ] ; then ps_socket=$(netstat -a | awk '/mysql(d)?.sock/ { print $5 }' | head -1) found_socks=$(netstat -a | awk '/mysql(d)?.sock/ { print $5 }') export physical_memory=$(prtconf | awk '/^Memory\ size:/ { print $3*1048576 }') fi } ## Optional Components Groups ## banner_info () { shared_info print_banner ; echo check_mysql_version ; echo post_uptime_warning ; echo } misc () { shared_info check_slow_queries ; echo check_binary_log ; echo check_threads ; echo check_used_connections ; echo } memory () { shared_info total_memory_used ; echo check_key_buffer_size ; echo check_query_cache ; echo check_sort_operations ; echo check_join_operations ; echo } file () { shared_info check_open_files ; echo check_table_cache ; echo check_tmp_tables ; echo check_table_scans ; echo check_table_locking ; echo } all () { banner_info misc memory file # snarky } prompt () { prompted='true' read -p "Username [anonymous] : " user read -rp "Password [] : " pass
cecho "\n\c"
read -p "Socket [ /var/lib/mysql/mysql.sock ] : " socket
if [ -z $socket ] ; then
export socket='/var/lib/mysql/mysql.sock'
fi

if [ -z $pass ] ; then
export mysql="mysql -S $socket -u$user"
export mysqladmin="mysqladmin -S $socket -u$user"
else
export mysql="mysql -S $socket -u$user -p$pass"
export mysqladmin="mysqladmin -S $socket -u$user -p$pass"
fi

check_for_socket
check_mysql_login

if [ $? = 1 ] ; then
exit 1
fi
read -p "Mode to test - banner, file, misc, mem, innodb, [all] : " REPLY
if [ -z $REPLY ] ; then
REPLY='all'
fi
case $REPLY in
banner | BANNER | header | HEADER | head | HEAD)
banner_info
;;
misc | MISC | miscelaneous )
misc
;;
mem | memory | MEM | MEMORY )
memory
;;
file | FILE | disk | DISK )
file
;;
innodb | INNODB )
innodb
;;
all | ALL )
cecho "\n\c"
all
;;
* )
cecho "Invalid Mode! Valid options are 'banner', 'misc', 'memory', 'file', 'innodb' or 'all'" $boldred
exit 1
;;
esac
}

## Address environmental differences ##
get_system_info
# echo $ps_socket

if [ -z "$1" ] ; then
login_validation
mode='ALL'
elif [ "$1" = "prompt" ] || [ "$1" = "PROMPT" ] ; then
mode=$1
elif [ "$1" != "prompt" ] || [ "$1" != "PROMPT" ] ; then
login_validation
mode=$1
fi

case $mode in
all | ALL )
cecho "\n\c"
all
;;
mem | memory | MEM | MEMORY )
cecho "\n\c"
memory
;;
file | FILE | disk | DISK )
cecho "\n\c"
file
;;
banner | BANNER | header | HEADER | head | HEAD )
banner_info
;;
misc | MISC | miscelaneous )
cecho "\n\c"
misc
;;
innodb | INNODB )
banner_info
check_innodb_status ; echo
;;
prompt | PROMPT )
prompt
;;
*)
cecho "usage: $0 [ all | banner | file | innodb | memory | misc | promp ]" $boldred
exit 1
;;
esac