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#!/bin/bash
# Created by Roel Van de Paar, Percona LLC
# This script quickly tests all available mysqld options
if [ ! -r ./bin/mysqld ]; then
if [ ! -r ./mysqld ]; then
echo "This script quickly tests all mysqld options. Note it expects cores to be written to /cores/core.pid. Location can be changed in-script, but not filename"
echo "To set your server up in this way (in terms of corefile generation), see core file setting part of setup_server.sh, available at lp:percona-qa"
echo "Error: no ./bin/mysqld or ./mysqld found!"
exit 1
else
cd ..
fi
fi
# User Variables
CORELOC="/cores" # No trailing slash
# Option values array ('' = use option without a value, which works for non-value options, for example; --core-file)
declare -a VALUES=('-1' '0' '1' '2' '10' '1026' '-1125899906842624' '1125899906842624' 'a' '&&1' '%' 'NONE' '-NULL' 'NULL' '.' '..' '')
# Vars
MYSQLD_START_TIMEOUT=10 # Default: 30, but this may be tuned down on non-loaded servers with single threaded testruns. Increase when there is more load.
RANDOMD=$(echo $RANDOM$RANDOM$RANDOM | sed 's/..\(......\).*/\1/')
WORKDIR=/tmp/$RANDOMD # Here we keep the log files, option list, failed items
RUNDIR=/dev/shm/$RANDOMD # Here we keep a copy of the data template dir and here we do the actual mysqld runs (--datadir=...)
FINDS="^Error:|ERROR|allocated at line|missing DBUG_RETURN|^safe_mutex:|Invalid.*old.*table or database|InnoDB: Warning|InnoDB: Error:|InnoDB: Operating system error|Error while setting value"
IGNOR="Lock wait timeout exceeded|Deadlock found when trying to get lock|innodb_log_block_size has been changed|Sort aborted:|ERROR: the age of the last checkpoint is [0-9]*,|consider increasing server sort buffer size|.ERROR. Event Scheduler:.*does[ ]*n.t exist"
CORES=0
echoit(){
echo "[$(date +'%T')] [$CORES] [$OPTIONS] $1"
echo "[$(date +'%T')] [$CORES] [$OPTIONS] $1" >> /$WORKDIR/test_mysqld_options.log
}
test_options(){
OPTIONS=$(echo $OPTIONS | sed 's|[ ]*$||')
echoit "Ensuring there are no relevant servers running..."
KILLPID=$(ps -ef | grep "$RUNDIR" | grep -v grep | awk '{print $2}' | tr '\n' ' ')
(sleep 0.2; kill -9 $KILLPID >/dev/null 2>&1) &
wait $KILLDPID >/dev/null 2>&1 # The sleep 0.2 + subsequent wait (cought before the kill) avoids the annoying 'Killed' message
# from being displayed in the output. Thank you to user 'Foonly' @ forums.whirlpool.net.au
echoit "Clearing rundir..."
rm -Rf $RUNDIR/data/* $RUNDIR/log/* $RUNDIR/pid.pid $RUNDIR/socket.sock
echoit "Generating new workdir..."
mkdir -p $RUNDIR/data/test $RUNDIR/data/mysql $RUNDIR/log
echoit "Copying datadir from template..."
cp -R $RUNDIR/data.template/* $RUNDIR/data
PORT=$[50000 + ( $RANDOM % ( 9999 ) ) ]
echoit "Starting mysqld..."
CMD="./bin/mysqld --basedir=$PWD --datadir=$RUNDIR/data --core-file \
--port=$PORT --pid_file=$RUNDIR/pid.pid --socket=$RUNDIR/socket.sock \
--log-error=$RUNDIR/log/master.err $OPTIONS"
$CMD >> $RUNDIR/log/master.err 2>&1 &
MPID="$!"
# Give up to 30 seconds for mysqld to start, but check intelligently for known startup issues like "Error while setting value" for options
echoit "Waiting for mysqld (pid: $MPID) to fully start..."
BADVALUE=0
for X in $(seq 0 $MYSQLD_START_TIMEOUT); do
sleep 1
if ./bin/mysqladmin -uroot -S$RUNDIR/socket.sock ping > /dev/null 2>&1; then
break
fi
if egrep -qi "Error while setting value" $RUNDIR/log/master.err; then
BADVALUE=1
break
elif [ "$MPID" == "" ]; then
echo_it "Assert! $MPID empty"
exit 1
fi
done
if [ $BADVALUE -eq 1 ]; then
echoit "=== Fail: An option value is reported to be erroneous by mysqld."
else
# Check if mysqld is alive
if ./bin/mysqladmin -uroot -S$RUNDIR/socket.sock ping > /dev/null 2>&1; then
echoit "Server started ok. Now checking results..."
if egrep -qi "value.*adjusted to" $RUNDIR/log/master.err; then
echoit "=== Modified: an option value was modified by mysqld."
elif egrep -qi "ignoring option.*due to invalid value" $RUNDIR/log/master.err; then
echoit "=== Ignored: an option value was ignored by mysqld."
elif egrep -qi "option.*value.*wasn't recognized" $RUNDIR/log/master.err; then
echoit "=== Not recognized: an option value was not recognized by mysqld."
else
echoit "=== Success: option (set) worked OK!"
fi
else
echoit "Server failed to start correctly. Checking if there is a coredump for the PID..."
sleep 2 # Delay to ensure core was written completely
if [ $(ls -l ${CORELOC}/core.${MPID}* 2>/dev/null | wc -l) -ge 1 ]; then
CORES=$[ $CORES + 1 ]
echoit "=== !!! Fail: an option failed and generated a core at $(ls ${CORELOC}/core.${MPID}*)"
echoit "Copying vardir from $RUNDIR/data to $WORKDIR/data.${MPID} and moving core"
mv $RUNDIR/data $WORKDIR/data.${MPID}
mv $RUNDIR/log $WORKDIR/log.${MPID}
mv ${CORELOC}/core.${MPID}* $WORKDIR/data.${MPID}/
else
echoit "=== ??? Fail: an option failed, but did not generate a core. Relevant error log content:"
egrep "$FINDS" $RUNDIR/log/master.err | grep -v "$IGNOR" | sed 's|^|^ |'
egrep "$FINDS" $RUNDIR/log/master.err | grep -v "$IGNOR" | sed 's|^|^ |' >> /$WORKDIR/test_mysqld_options.log
fi
fi
fi
}
# Setup
rm -Rf $WORKDIR $RUNDIR
mkdir $WORKDIR $RUNDIR
echoit "Workdir: $WORKDIR | Rundir: $RUNDIR | Basedir: $PWD"
echoit "Generating initial rundir subdirectories..."
mkdir -p $RUNDIR/data/test $RUNDIR/data/mysql $RUNDIR/log
echoit "Generating datadir template (using mysql_install_db)..."
if [ -r ./bin/mysql_install_db ]; then
./bin/mysql_install_db --force --no-defaults --basedir=$PWD --datadir=$RUNDIR/data > $RUNDIR/log/mysql_install_db.txt 2>&1
elif [ -r ./scripts/mysql_install_db ]; then
./scripts/mysql_install_db --force --no-defaults --basedir=$PWD --datadir=$RUNDIR/data > $RUNDIR/log/mysql_install_db.txt 2>&1
else
echo "Error: mysql_install_db not found in $PWD/scripts nor in $PWD/bin"
exit 1
fi
mv $RUNDIR/data $RUNDIR/data.template
# Fetch mysqld options
echoit "Fetching options from mysqld"
./bin/mysqld --help --verbose 2>&1 | grep "^ --[a-z]" | sed 's|^ ||;s| .*||;s|=#||;s|\[=name\]||;s|\[\]||;s|=name||' > /$WORKDIR/mysqld_options.txt
option_add(){
if [ "$2" == "" ]; then
OPTIONS="${OPTIONS}$1 "
else
OPTIONS="${OPTIONS}$1=$2 "
fi
}
# Start actual option testing, combinations up to 4 options supported (and easy to expand)
echoit "Starting option/value testing iterations"
COUNT=0
LEVEL=1
for VALUE4 in "${VALUES[@]}"; do
for OPTION4 in $(cat /$WORKDIR/mysqld_options.txt); do
for VALUE3 in "${VALUES[@]}"; do
for OPTION3 in $(cat /$WORKDIR/mysqld_options.txt); do
for VALUE2 in "${VALUES[@]}"; do
for OPTION2 in $(cat /$WORKDIR/mysqld_options.txt); do
for VALUE1 in "${VALUES[@]}"; do
for OPTION1 in $(cat /$WORKDIR/mysqld_options.txt); do
OPTIONS=""
COUNT=$[ $COUNT + 1 ]
if [ $COUNT -ge 10 ]; then # Periodical reporting of workdir
COUNT=0
echoit "Periodical reporting: Workdir: $WORKDIR | Rundir: $RUNDIR"
fi
if [ $LEVEL -ge 4 ]; then
option_add $OPTION4 $VALUE4
fi
if [ $LEVEL -ge 3 ]; then
option_add $OPTION3 $VALUE3
fi
if [ $LEVEL -ge 2 ]; then
option_add $OPTION2 $VALUE2
fi
option_add $OPTION1 $VALUE1
test_options
# Debug
# read -p "Press enter to continue..."
done
done
LEVEL=2
done
done
LEVEL=3
done
done
LEVEL=4
done
done
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