mirror of
https://github.com/percona/percona-toolkit.git
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266 lines
9.1 KiB
Bash
266 lines
9.1 KiB
Bash
# This program is copyright 2011-2012 Percona Inc.
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# Feedback and improvements are welcome.
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#
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# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
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# systems, you can issue `man perlgpl' or `man perlartistic' to read these
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# licenses.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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# Place, Suite 330, Boston, MA 02111-1307 USA.
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# ###########################################################################
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# collect_mysql_info package
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# ###########################################################################
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# Package: collect_mysql_info
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# collect collects mysql information.
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# XXX
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# THIS LIB REQUIRES log_warn_die.sh, summary_common.sh, and alt_cmds.sh!
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# XXX
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CMD_MYSQL="${CMD_MYSQL:-""}"
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CMD_MYSQLDUMP="${CMD_MYSQLDUMP:-""}"
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# Simply looks for instances of mysqld in the outof of ps.
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collect_mysqld_instances () {
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local variables_file="$1"
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local pids="$(_pidof mysqld)"
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if [ -n "$pids" ]; then
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for pid in $pids; do
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local nice="$( get_nice_of_pid $pid )"
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local oom="$( get_oom_of_pid $pid )"
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echo "internal::nice_of_$pid $nice" >> "$variables_file"
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echo "internal::oom_of_$pid $oom" >> "$variables_file"
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done
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pids="$pids"
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pids="$(echo $pids | sed -e 's/ /,/g')"
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ps ww -p "$pids" 2>/dev/null
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else
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echo "mysqld doesn't appear to be running"
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fi
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}
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# Tries to find the my.cnf file by examining 'ps' output.
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# You have to specify the port for the instance you are
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# interested in, in case there are multiple instances.
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find_my_cnf_file() {
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local file="$1"
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local port="${2:-""}"
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local cnf_file=""
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if [ "$port" ]; then
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# Find the cnf file for the specific port.
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cnf_file="$(grep --max-count 1 "/mysqld.*--port=$port" "$file" \
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| awk 'BEGIN{RS=" "; FS="=";} $1 ~ /--defaults-file/ { print $2; }')"
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else
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# Find the cnf file for the first mysqld instance.
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cnf_file="$(grep --max-count 1 '/mysqld' "$file" \
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| awk 'BEGIN{RS=" "; FS="=";} $1 ~ /--defaults-file/ { print $2; }')"
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fi
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if [ -z "$cnf_file" ]; then
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# Cannot autodetect config file, try common locations.
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if [ -e "/etc/my.cnf" ]; then
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cnf_file="/etc/my.cnf"
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elif [ -e "/etc/mysql/my.cnf" ]; then
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cnf_file="/etc/mysql/my.cnf"
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elif [ -e "/var/db/mysql/my.cnf" ]; then
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cnf_file="/var/db/mysql/my.cnf";
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fi
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fi
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echo "$cnf_file"
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}
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collect_mysql_variables () {
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$CMD_MYSQL $EXT_ARGV -ss -e 'SHOW /*!40100 GLOBAL*/ VARIABLES'
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}
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collect_mysql_status () {
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$CMD_MYSQL $EXT_ARGV -ss -e 'SHOW /*!50000 GLOBAL*/ STATUS'
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}
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collect_mysql_databases () {
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$CMD_MYSQL $EXT_ARGV -ss -e 'SHOW DATABASES' 2>/dev/null
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}
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collect_mysql_plugins () {
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$CMD_MYSQL $EXT_ARGV -ss -e 'SHOW PLUGINS' 2>/dev/null
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}
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collect_mysql_slave_status () {
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$CMD_MYSQL $EXT_ARGV -ssE -e 'SHOW SLAVE STATUS' 2>/dev/null
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}
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collect_mysql_innodb_status () {
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$CMD_MYSQL $EXT_ARGV -ssE -e 'SHOW /*!50000 ENGINE*/ INNODB STATUS' 2>/dev/null
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}
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collect_mysql_processlist () {
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$CMD_MYSQL $EXT_ARGV -ssE -e 'SHOW FULL PROCESSLIST' 2>/dev/null
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}
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collect_mysql_users () {
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$CMD_MYSQL $EXT_ARGV -ss -e 'SELECT COUNT(*), SUM(user=""), SUM(password=""), SUM(password NOT LIKE "*%") FROM mysql.user' 2>/dev/null
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}
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collect_master_logs_status () {
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local master_logs_file="$1"
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local master_status_file="$2"
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$CMD_MYSQL $EXT_ARGV -ss -e 'SHOW MASTER LOGS' > "$master_logs_file" 2>/dev/null
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$CMD_MYSQL $EXT_ARGV -ss -e 'SHOW MASTER STATUS' > "$master_status_file" 2>/dev/null
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}
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# Somewhat different from the others, this one joins the status we got earlier
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collect_mysql_deferred_status () {
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local status_file="$1"
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collect_mysql_status > "$PT_TMPDIR/defer_gatherer"
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join "$status_file" "$PT_TMPDIR/defer_gatherer"
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}
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collect_internal_vars () {
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local mysqld_executables="${1:-""}"
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local FNV_64=""
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if $CMD_MYSQL $EXT_ARGV -e 'SELECT FNV_64("a")' >/dev/null 2>&1; then
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FNV_64="Enabled";
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else
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FNV_64="Unknown";
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fi
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local now="$($CMD_MYSQL $EXT_ARGV -ss -e 'SELECT NOW()')"
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local user="$($CMD_MYSQL $EXT_ARGV -ss -e 'SELECT CURRENT_USER()')"
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local trigger_count=$($CMD_MYSQL $EXT_ARGV -ss -e "SELECT COUNT(*) FROM INFORMATION_SCHEMA.TRIGGERS" 2>/dev/null)
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echo "pt-summary-internal-mysql_executable $CMD_MYSQL"
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echo "pt-summary-internal-now $now"
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echo "pt-summary-internal-user $user"
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echo "pt-summary-internal-FNV_64 $FNV_64"
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echo "pt-summary-internal-trigger_count $trigger_count"
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if [ -e "$mysqld_executables" ]; then
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local i=1
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while read executable; do
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echo "pt-summary-internal-mysqld_executable_${i} $(has_symbols "$executable")"
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i=$(($i + 1))
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done < "$mysqld_executables"
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fi
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}
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# Uses mysqldump and dumps the results to FILE.
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# args and dbtodump are passed to mysqldump.
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get_mysqldump_for () {
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local args="$1"
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local dbtodump="${2:-"--all-databases"}"
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$CMD_MYSQLDUMP $EXT_ARGV --no-data --skip-comments \
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--skip-add-locks --skip-add-drop-table --compact \
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--skip-lock-all-tables --skip-lock-tables --skip-set-charset \
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${args} --databases $( local IFS=,; echo ${dbtodump})
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}
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# Returns a string with arguments to pass to mysqldump.
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# Takes one argument, which should be a
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get_mysqldump_args () {
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local file="$1"
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local trg_arg=""
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# If mysqldump supports triggers, then add options for routines.
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if $CMD_MYSQLDUMP --help --verbose 2>&1 | grep triggers >/dev/null; then
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# "mysqldump supports triggers"
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trg_arg="--routines"
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fi
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if [ "${trg_arg}" ]; then
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# Find out if there are any triggers. If there are none, we will skip
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# that option to mysqldump, because when mysqldump checks for them, it
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# can take a long time, one table at a time.
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local triggers="--skip-triggers"
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local trg=$(get_var "pt-summary-internal-trigger_count" "$file" )
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if [ -n "${trg}" ] && [ "${trg}" -gt 0 ]; then
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triggers="--triggers"
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fi
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trg_arg="${trg_arg} ${triggers}";
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fi
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echo "${trg_arg}"
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}
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collect_mysqld_executables () {
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local mysqld_instances="$1"
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for pid in $( grep '/mysqld' "$mysqld_instances" | awk '/^.*[0-9]/{print $1}' ); do
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ps -o cmd -p $pid | sed -e 's/^\(.*mysqld\) .*/\1/' | grep -v '^CMD$'
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done | sort -u
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}
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collect_mysql_info () {
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local dir="$1"
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collect_mysql_variables > "$dir/mysql-variables"
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collect_mysql_status > "$dir/mysql-status"
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collect_mysql_databases > "$dir/mysql-databases"
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collect_mysql_plugins > "$dir/mysql-plugins"
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collect_mysql_slave_status > "$dir/mysql-slave"
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collect_mysql_innodb_status > "$dir/innodb-status"
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collect_mysql_processlist > "$dir/mysql-processlist"
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collect_mysql_users > "$dir/mysql-users"
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collect_mysqld_instances "$dir/mysql-variables" > "$dir/mysqld-instances"
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collect_mysqld_executables "$dir/mysqld-instances" > "$dir/mysqld-executables"
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local binlog="$(get_var log_bin "$dir/mysql-variables")"
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if [ "${binlog}" ]; then
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# "Got a binlog, going to get MASTER LOGS and MASTER STATUS"
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collect_master_logs_status "$dir/mysql-master-logs" "$dir/mysql-master-status"
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fi
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local uptime="$(get_var Uptime "$dir/mysql-status")"
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local current_time="$($CMD_MYSQL $EXT_ARGV -ss -e \
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"SELECT LEFT(NOW() - INTERVAL ${uptime} SECOND, 16)")"
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local port="$(get_var port "$dir/mysql-variables")"
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local cnf_file="$(find_my_cnf_file "$dir/mysqld-instances" ${port})"
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[ -e "$cnf_file" ] && cat "$cnf_file" > "$dir/mysql-config-file"
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local pid_file="$(get_var "pid_file" "$dir/mysql-variables")"
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local pid_file_exists=""
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[ -e "${pid_file}" ] && pid_file_exists=1
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echo "pt-summary-internal-pid_file_exists $pid_file_exists" >> "$dir/mysql-variables"
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# TODO: Do these require a file of their own?
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echo "pt-summary-internal-current_time $current_time" >> "$dir/mysql-variables"
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echo "pt-summary-internal-Config_File_path $cnf_file" >> "$dir/mysql-variables"
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collect_internal_vars "$dir/mysqld-executables" >> "$dir/mysql-variables"
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if [ -n "${OPT_DATABASES}" ]; then
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# "--dump-schemas passed in, dumping early"
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local trg_arg="$( get_mysqldump_args "$dir/mysql-variables" )"
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get_mysqldump_for "${trg_arg}" "${OPT_DATABASES}" > "$dir/mysqldump"
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fi
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# TODO: gather this data in the same format as normal: TS line, stats
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(
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sleep $OPT_SLEEP
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collect_mysql_deferred_status "$dir/mysql-status" > "$dir/mysql-status-defer"
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) &
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_d "Forked child is $!"
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}
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# ###########################################################################
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# End collect_mysql_info package
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# ###########################################################################
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