X-Git-Url: https://arthur.barton.de/gitweb/?a=blobdiff_plain;f=charts.d%2Fmysql.chart.sh;h=1363d01f420c1a2ed19f4aabd0a319209030199f;hb=b060bae83cc36fdc4f14120228e4c9b0d1ec42e8;hp=9390f972fe9cf0439f60015613746b00441131bd;hpb=c5572d0ddaf88f58995cfe4f916494e714c2f7ca;p=netdata.git

diff --git a/charts.d/mysql.chart.sh b/charts.d/mysql.chart.sh
old mode 100755
new mode 100644
index 9390f972..1363d01f
--- a/charts.d/mysql.chart.sh
+++ b/charts.d/mysql.chart.sh
@@ -1,4 +1,10 @@
-#!/bin/sh
+# no need for shebang - this file is loaded from charts.d.plugin
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
 
 # http://dev.mysql.com/doc/refman/5.0/en/server-status-variables.html
 #
@@ -7,75 +13,294 @@
 # This statement does not require any privilege.
 # It requires only the ability to connect to the server.
 
-mysql_cmd_opts=
-mysql_update_every=5
+mysql_update_every=2
+mysql_priority=60000
+
+declare -A mysql_cmds=() mysql_opts=() mysql_ids=() mysql_data=()
+
+mysql_get() {
+	local arr
+	local oIFS="${IFS}"
+	mysql_data=()
+	IFS=$'\t'$'\n'
+	#arr=($(run "${@}" -e "SHOW GLOBAL STATUS WHERE value REGEXP '^[0-9]';" | egrep "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)" ))
+	#arr=($(run "${@}" -N -e "SHOW GLOBAL STATUS;" | egrep "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)[^ ]+\s[0-9]" ))
+	arr=($(run "${@}" -N -e "SHOW GLOBAL STATUS;" | egrep "^(Bytes|Slow_|Que|Handl|Table|Selec|Sort_|Creat|Conne|Abort|Binlo|Threa|Innod|Qcach|Key_|Open)[^[:space:]]+[[:space:]]+[0-9]+" ))
+	IFS="${oIFS}"
+
+	[ "${#arr[@]}" -lt 3 ] && return 1
+	local end=${#arr[@]}
+	for ((i=2;i<end;i+=2)); do
+		mysql_data["${arr[$i]}"]=${arr[$i+1]}
+	done
+
+	[ -z "${mysql_data[Connections]}" ] && return 1
+
+	mysql_data[Thread_cache_misses]=0
+	[ $(( mysql_data[Connections] + 1 - 1 )) -gt 0 ] && mysql_data[Thread_cache_misses]=$(( mysql_data[Threads_created] * 10000 / mysql_data[Connections] ))
 
-mysql_get_stats() {
-	mysql "${mysql_cmd_opts}" -s -e "show global status;"
+	return 0
 }
 
 mysql_check() {
-	require_cmd mysql || exit 1
-	require_cmd egrep || exit 1
-	require_cmd sed   || exit 1
+	# this should return:
+	#  - 0 to enable the chart
+	#  - 1 to disable the chart
+
+	local x m mysql_cmd tryroot=0 unconfigured=0
+
+	if [ "${1}" = "tryroot" ]
+		then
+		tryroot=1
+		shift
+	fi
+
+	[ -z "${mysql_cmd}" ] && mysql_cmd="$(which mysql 2>/dev/null || command -v mysql 2>/dev/null)"
+
+	if [ ${#mysql_opts[@]} -eq 0 ]
+		then
+		unconfigured=1
+
+		mysql_cmds[local]="$mysql_cmd"
+
+		if [ $tryroot -eq 1 ]
+			then
+			# the user has not configured us for mysql access
+			# if the root user is passwordless in mysql, we can
+			# attempt to connect to mysql as root
+			mysql_opts[local]="-u root"
+		else
+			mysql_opts[local]=
+		fi
+	fi
 
 	# check once if the url works
-	local x="$(mysql_get_stats | grep "^Connections[[:space:]]")"
-	if [ ! $? -eq 0 -o -z "$x" ]
-	then
-		echo >&2 "mysql: cannot get global status. Please set mysql_cmd_opts='options' whatever needed to get connected to mysql server, in $confd/mysql.conf"
-		return 1
+	for m in "${!mysql_opts[@]}"
+	do
+		[ -z "${mysql_cmds[$m]}" ] && mysql_cmds[$m]="$mysql_cmd"
+		if [ -z "${mysql_cmds[$m]}" ]
+			then
+			error "cannot get mysql command for '$m'. Please set mysql_cmds[$m]='/path/to/mysql', in $confd/mysql.conf"
+		fi
+
+		mysql_get "${mysql_cmds[$m]}" ${mysql_opts[$m]}
+		if [ ! $? -eq 0 ]
+		then
+			error "cannot get global status for '$m'. Please set mysql_opts[$m]='options' to whatever needed to get connected to the mysql server, in $confd/mysql.conf"
+			unset mysql_cmds[$m]
+			unset mysql_opts[$m]
+			unset mysql_ids[$m]
+			continue
+		fi
+
+		mysql_ids[$m]="$( fixid "$m" )"
+	done
+
+	if [ ${#mysql_opts[@]} -eq 0 ]
+		then
+		if [ ${unconfigured} -eq 1 -a ${tryroot} -eq 0 ]
+			then
+			mysql_check tryroot "${@}"
+			return $?
+		else
+			error "no mysql servers found. Please set mysql_opts[name]='options' to whatever needed to get connected to the mysql server, in $confd/mysql.conf"
+			return 1
+		fi
 	fi
 
 	return 0
 }
 
 mysql_create() {
+	local x
+
 	# create the charts
-	cat <<EOF
-CHART mysql.bandwidth '' "mysql Bandwidth" "kilobits / sec" mysql '' area 20001 $mysql_update_every
-DIMENSION Bytes_received in incremental 8 $((1024 * mysql_update_every))
-DIMENSION Bytes_sent out incremental -8 $((1024 * mysql_update_every))
-
-CHART mysql.queries '' "mysql Queries" "queries / sec" mysql '' line 20002 $mysql_update_every
-DIMENSION Queries queries incremental 1 $((1 * mysql_update_every))
-DIMENSION Questions questions incremental 1 $((1 * mysql_update_every))
-DIMENSION Slow_queries slow_queries incremental -1 $((1 * mysql_update_every))
-
-CHART mysql.operations '' "mysql Operations" "operations / sec" mysql '' line 20003 $mysql_update_every
-DIMENSION Opened_tables opened_table incremental 1 $((1 * mysql_update_every))
-DIMENSION Flush_commands flush incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_commit commit incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_delete delete incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_prepare prepare incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_read_first read_first incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_read_key read_key incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_read_next read_next incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_read_prev read_prev incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_read_rnd read_rnd incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_read_rnd_next read_rnd_next incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_rollback rollback incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_savepoint savepoint incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_savepoint_rollback savepoint_rollback incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_update update incremental 1 $((1 * mysql_update_every))
-DIMENSION Handler_write write incremental 1 $((1 * mysql_update_every))
-
-CHART mysql.table_locks '' "mysql Tables Locks" "locks / sec" mysql '' line 20004 $mysql_update_every
-DIMENSION Table_locks_immediate immediate incremental 1 $((1 * mysql_update_every))
-DIMENSION Table_locks_waited waited incremental -1 $((1 * mysql_update_every))
-
-CHART mysql.select_issues '' "mysql Select Issues" "issues / sec" mysql '' line 20005 $mysql_update_every
-DIMENSION Select_full_join full_join incremental 1 $((1 * mysql_update_every))
-DIMENSION Select_full_range_join full_range_join incremental 1 $((1 * mysql_update_every))
-DIMENSION Select_range range incremental 1 $((1 * mysql_update_every))
-DIMENSION Select_range_check range_check incremental 1 $((1 * mysql_update_every))
-DIMENSION Select_scan scan incremental 1 $((1 * mysql_update_every))
-
-CHART mysql.sort_issues '' "mysql Sort Issues" "issues / sec" mysql '' line 20006 $mysql_update_every
-DIMENSION Sort_merge_passes merge_passes incremental 1 $((1 * mysql_update_every))
-DIMENSION Sort_range range incremental 1 $((1 * mysql_update_every))
-DIMENSION Sort_scan scan incremental 1 $((1 * mysql_update_every))
+	for x in "${mysql_ids[@]}"
+	do
+		cat <<EOF
+CHART mysql_$x.net '' "mysql Bandwidth" "kilobits/s" bandwidth mysql.net area $((mysql_priority + 1)) $mysql_update_every
+DIMENSION Bytes_received in incremental 8 1024
+DIMENSION Bytes_sent out incremental -8 1024
+
+CHART mysql_$x.queries '' "mysql Queries" "queries/s" queries mysql.queries line $((mysql_priority + 2)) $mysql_update_every
+DIMENSION Queries queries incremental 1 1
+DIMENSION Questions questions incremental 1 1
+DIMENSION Slow_queries slow_queries incremental -1 1
+
+CHART mysql_$x.handlers '' "mysql Handlers" "handlers/s" handlers mysql.handlers line $((mysql_priority + 3)) $mysql_update_every
+DIMENSION Handler_commit commit incremental 1 1
+DIMENSION Handler_delete delete incremental 1 1
+DIMENSION Handler_prepare prepare incremental 1 1
+DIMENSION Handler_read_first read_first incremental 1 1
+DIMENSION Handler_read_key read_key incremental 1 1
+DIMENSION Handler_read_next read_next incremental 1 1
+DIMENSION Handler_read_prev read_prev incremental 1 1
+DIMENSION Handler_read_rnd read_rnd incremental 1 1
+DIMENSION Handler_read_rnd_next read_rnd_next incremental 1 1
+DIMENSION Handler_rollback rollback incremental 1 1
+DIMENSION Handler_savepoint savepoint incremental 1 1
+DIMENSION Handler_savepoint_rollback savepoint_rollback incremental 1 1
+DIMENSION Handler_update update incremental 1 1
+DIMENSION Handler_write write incremental 1 1
+
+CHART mysql_$x.table_locks '' "mysql Tables Locks" "locks/s" locks mysql.table_locks line $((mysql_priority + 4)) $mysql_update_every
+DIMENSION Table_locks_immediate immediate incremental 1 1
+DIMENSION Table_locks_waited waited incremental -1 1
+
+CHART mysql_$x.join_issues '' "mysql Select Join Issues" "joins/s" issues mysql.join_issues line $((mysql_priority + 5)) $mysql_update_every
+DIMENSION Select_full_join full_join incremental 1 1
+DIMENSION Select_full_range_join full_range_join incremental 1 1
+DIMENSION Select_range range incremental 1 1
+DIMENSION Select_range_check range_check incremental 1 1
+DIMENSION Select_scan scan incremental 1 1
+
+CHART mysql_$x.sort_issues '' "mysql Sort Issues" "issues/s" issues mysql.sort.issues line $((mysql_priority + 6)) $mysql_update_every
+DIMENSION Sort_merge_passes merge_passes incremental 1 1
+DIMENSION Sort_range range incremental 1 1
+DIMENSION Sort_scan scan incremental 1 1
+
+CHART mysql_$x.tmp '' "mysql Tmp Operations" "counter" temporaries mysql.tmp line $((mysql_priority + 7)) $mysql_update_every
+DIMENSION Created_tmp_disk_tables disk_tables incremental 1 1
+DIMENSION Created_tmp_files files incremental 1 1
+DIMENSION Created_tmp_tables tables incremental 1 1
+
+CHART mysql_$x.connections '' "mysql Connections" "connections/s" connections mysql.connections line $((mysql_priority + 8)) $mysql_update_every
+DIMENSION Connections all incremental 1 1
+DIMENSION Aborted_connects aborded incremental 1 1
+
+CHART mysql_$x.binlog_cache '' "mysql Binlog Cache" "transactions/s" binlog mysql.binlog_cache line $((mysql_priority + 9)) $mysql_update_every
+DIMENSION Binlog_cache_disk_use disk incremental 1 1
+DIMENSION Binlog_cache_use all incremental 1 1
+
+CHART mysql_$x.threads '' "mysql Threads" "threads" threads mysql.threads line $((mysql_priority + 10)) $mysql_update_every
+DIMENSION Threads_connected connected absolute 1 1
+DIMENSION Threads_created created incremental 1 1
+DIMENSION Threads_cached cached absolute -1 1
+DIMENSION Threads_running running absolute 1 1
+
+CHART mysql_$x.thread_cache_misses '' "mysql Threads Cache Misses" "misses" threads mysql.thread_cache_misses area $((mysql_priority + 11)) $mysql_update_every
+DIMENSION misses misses absolute 1 100
+
+CHART mysql_$x.innodb_io '' "mysql InnoDB I/O Bandwidth" "kilobytes/s" innodb mysql.innodb_io area $((mysql_priority + 12)) $mysql_update_every
+DIMENSION Innodb_data_read read incremental 1 1024
+DIMENSION Innodb_data_written write incremental -1 1024
+
+CHART mysql_$x.innodb_io_ops '' "mysql InnoDB I/O Operations" "operations/s" innodb mysql.innodb_io_ops line $((mysql_priority + 13)) $mysql_update_every
+DIMENSION Innodb_data_reads reads incremental 1 1
+DIMENSION Innodb_data_writes writes incremental -1 1
+DIMENSION Innodb_data_fsyncs fsyncs incremental 1 1
+
+CHART mysql_$x.innodb_io_pending_ops '' "mysql InnoDB Pending I/O Operations" "operations" innodb mysql.innodb_io_pending_ops line $((mysql_priority + 14)) $mysql_update_every
+DIMENSION Innodb_data_pending_reads reads absolute 1 1
+DIMENSION Innodb_data_pending_writes writes absolute -1 1
+DIMENSION Innodb_data_pending_fsyncs fsyncs absolute 1 1
+
+CHART mysql_$x.innodb_log '' "mysql InnoDB Log Operations" "operations/s" innodb mysql.innodb_log line $((mysql_priority + 15)) $mysql_update_every
+DIMENSION Innodb_log_waits waits incremental 1 1
+DIMENSION Innodb_log_write_requests write_requests incremental -1 1
+DIMENSION Innodb_log_writes writes incremental -1 1
+
+CHART mysql_$x.innodb_os_log '' "mysql InnoDB OS Log Operations" "operations" innodb mysql.innodb_os_log line $((mysql_priority + 16)) $mysql_update_every
+DIMENSION Innodb_os_log_fsyncs fsyncs incremental 1 1
+DIMENSION Innodb_os_log_pending_fsyncs pending_fsyncs absolute 1 1
+DIMENSION Innodb_os_log_pending_writes pending_writes absolute -1 1
+
+CHART mysql_$x.innodb_os_log_io '' "mysql InnoDB OS Log Bandwidth" "kilobytes/s" innodb mysql.innodb_os_log_io area $((mysql_priority + 17)) $mysql_update_every
+DIMENSION Innodb_os_log_written write incremental -1 1024
+
+CHART mysql_$x.innodb_cur_row_lock '' "mysql InnoDB Current Row Locks" "operations" innodb mysql.innodb_cur_row_lock area $((mysql_priority + 18)) $mysql_update_every
+DIMENSION Innodb_row_lock_current_waits current_waits absolute 1 1
+
+CHART mysql_$x.innodb_rows '' "mysql InnoDB Row Operations" "operations/s" innodb mysql.innodb_rows area $((mysql_priority + 19)) $mysql_update_every
+DIMENSION Innodb_rows_read read incremental 1 1
+DIMENSION Innodb_rows_deleted deleted incremental -1 1
+DIMENSION Innodb_rows_inserted inserted incremental 1 1
+DIMENSION Innodb_rows_updated updated incremental -1 1
+
+CHART mysql_$x.innodb_buffer_pool_pages '' "mysql InnoDB Buffer Pool Pages" "pages" innodb mysql.innodb_buffer_pool_pages line $((mysql_priority + 20)) $mysql_update_every
+DIMENSION Innodb_buffer_pool_pages_data data absolute 1 1
+DIMENSION Innodb_buffer_pool_pages_dirty dirty absolute -1 1
+DIMENSION Innodb_buffer_pool_pages_free free absolute 1 1
+DIMENSION Innodb_buffer_pool_pages_flushed flushed incremental -1 1
+DIMENSION Innodb_buffer_pool_pages_misc misc absolute -1 1
+DIMENSION Innodb_buffer_pool_pages_total total absolute 1 1
+
+CHART mysql_$x.innodb_buffer_pool_bytes '' "mysql InnoDB Buffer Pool Bytes" "MB" innodb mysql.innodb_buffer_pool_bytes area $((mysql_priority + 21)) $mysql_update_every
+DIMENSION Innodb_buffer_pool_bytes_data data absolute 1 $((1024 * 1024))
+DIMENSION Innodb_buffer_pool_bytes_dirty dirty absolute -1 $((1024 * 1024))
+
+CHART mysql_$x.innodb_buffer_pool_read_ahead '' "mysql InnoDB Buffer Pool Read Ahead" "operations/s" innodb mysql.innodb_buffer_pool_read_ahead area $((mysql_priority + 22)) $mysql_update_every
+DIMENSION Innodb_buffer_pool_read_ahead all incremental 1 1
+DIMENSION Innodb_buffer_pool_read_ahead_evicted evicted incremental -1 1
+DIMENSION Innodb_buffer_pool_read_ahead_rnd random incremental 1 1
+
+CHART mysql_$x.innodb_buffer_pool_reqs '' "mysql InnoDB Buffer Pool Requests" "requests/s" innodb mysql.innodb_buffer_pool_reqs area $((mysql_priority + 23)) $mysql_update_every
+DIMENSION Innodb_buffer_pool_read_requests reads incremental 1 1
+DIMENSION Innodb_buffer_pool_write_requests writes incremental -1 1
+
+CHART mysql_$x.innodb_buffer_pool_ops '' "mysql InnoDB Buffer Pool Operations" "operations/s" innodb mysql.innodb_buffer_pool_ops area $((mysql_priority + 24)) $mysql_update_every
+DIMENSION Innodb_buffer_pool_reads 'disk reads' incremental 1 1
+DIMENSION Innodb_buffer_pool_wait_free 'wait free' incremental -1 1
+
+CHART mysql_$x.qcache_ops '' "mysql QCache Operations" "queries/s" qcache mysql.qcache_ops line $((mysql_priority + 25)) $mysql_update_every
+DIMENSION Qcache_hits hits incremental 1 1
+DIMENSION Qcache_lowmem_prunes 'lowmem prunes' incremental -1 1
+DIMENSION Qcache_inserts inserts incremental 1 1
+DIMENSION Qcache_not_cached 'not cached' incremental -1 1
+
+CHART mysql_$x.qcache '' "mysql QCache Queries in Cache" "queries" qcache mysql.qcache line $((mysql_priority + 26)) $mysql_update_every
+DIMENSION Qcache_queries_in_cache queries absolute 1 1
+
+CHART mysql_$x.qcache_freemem '' "mysql QCache Free Memory" "MB" qcache mysql.qcache_freemem area $((mysql_priority + 27)) $mysql_update_every
+DIMENSION Qcache_free_memory free absolute 1 $((1024 * 1024))
+
+CHART mysql_$x.qcache_memblocks '' "mysql QCache Memory Blocks" "blocks" qcache mysql.qcache_memblocks line $((mysql_priority + 28)) $mysql_update_every
+DIMENSION Qcache_free_blocks free absolute 1 1
+DIMENSION Qcache_total_blocks total absolute 1 1
+
+CHART mysql_$x.key_blocks '' "mysql MyISAM Key Cache Blocks" "blocks" myisam mysql.key_blocks line $((mysql_priority + 29)) $mysql_update_every
+DIMENSION Key_blocks_unused unused absolute 1 1
+DIMENSION Key_blocks_used used absolute -1 1
+DIMENSION Key_blocks_not_flushed 'not flushed' absolute 1 1
+
+CHART mysql_$x.key_requests '' "mysql MyISAM Key Cache Requests" "requests/s" myisam mysql.key_requests area $((mysql_priority + 30)) $mysql_update_every
+DIMENSION Key_read_requests reads incremental 1 1
+DIMENSION Key_write_requests writes incremental -1 1
+
+CHART mysql_$x.key_disk_ops '' "mysql MyISAM Key Cache Disk Operations" "operations/s" myisam mysql.key_disk_ops area $((mysql_priority + 31)) $mysql_update_every
+DIMENSION Key_reads reads incremental 1 1
+DIMENSION Key_writes writes incremental -1 1
+
+CHART mysql_$x.files '' "mysql Open Files" "files" files mysql.files line $((mysql_priority + 32)) $mysql_update_every
+DIMENSION Open_files files absolute 1 1
+
+CHART mysql_$x.files_rate '' "mysql Opened Files Rate" "files/s" files mysql.files_rate line $((mysql_priority + 33)) $mysql_update_every
+DIMENSION Opened_files files incremental 1 1
 EOF
+
+	if [ ! -z "${mysql_data[Binlog_stmt_cache_disk_use]}" ]
+		then
+		cat <<EOF
+CHART mysql_$x.binlog_stmt_cache '' "mysql Binlog Statement Cache" "statements/s" binlog mysql.binlog_stmt_cache line $((mysql_priority + 50)) $mysql_update_every
+DIMENSION Binlog_stmt_cache_disk_use disk incremental 1 1
+DIMENSION Binlog_stmt_cache_use all incremental 1 1
+EOF
+	fi
+
+	if [ ! -z "${mysql_data[Connection_errors_accept]}" ]
+		then
+		cat <<EOF
+CHART mysql_$x.connection_errors '' "mysql Connection Errors" "connections/s" connections mysql.connection_errors line $((mysql_priority + 51)) $mysql_update_every
+DIMENSION Connection_errors_accept accept incremental 1 1
+DIMENSION Connection_errors_internal internal incremental 1 1
+DIMENSION Connection_errors_max_connections max incremental 1 1
+DIMENSION Connection_errors_peer_addr peer_addr incremental 1 1
+DIMENSION Connection_errors_select select incremental 1 1
+DIMENSION Connection_errors_tcpwrap tcpwrap incremental 1 1
+EOF
+	fi
+
+	done
 	return 0
 }
 
@@ -88,74 +313,210 @@ mysql_update() {
 	# for each dimension
 	# remember: KEEP IT SIMPLE AND SHORT
 
-	# 1. get the counters page from mysql
-	# 2. sed to remove spaces; replace . with _; remove spaces around =; prepend each line with: local mysql_
-	# 3. egrep lines starting with:
-	#    local mysql_client_http_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
-	#    local mysql_server_all_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
-	# 4. then execute this as a script with the eval
-	#
-	# be very carefull with eval:
-	# prepare the script and always grep at the end the lines that are usefull, so that
-	# even if something goes wrong, no other code can be executed
-
-	eval "$(mysql_get_stats |\
-		 sed -e "s/[[:space:]]\+/ /g" -e "s/\./_/g" -e "s/^\([a-zA-Z0-9_]\+\)[[:space:]]\+\([0-9]\+\)$/local mysql_\1=\2/g" |\
-		 egrep "^local mysql_[a-zA-Z0-9_]+=[[:digit:]]+$")"
-
-	# write the result of the work.
-	cat <<VALUESEOF
-BEGIN mysql.bandwidth $1
-SET Bytes_received = $mysql_Bytes_received
-SET Bytes_sent = $mysql_Bytes_sent
-END
-
-BEGIN mysql.queries $1
-SET Queries = $mysql_Queries
-SET Questions = $mysql_Questions
-SET Slow_queries = $mysql_Slow_queries
-END
-
-BEGIN mysql.operations $1
-SET Opened_tables = $mysql_Opened_tables
-SET Flush_commands = $mysql_Flush_commands
-SET Handler_commit = $mysql_Handler_commit
-SET Handler_delete = $mysql_Handler_delete
-SET Handler_prepare = $mysql_Handler_prepare
-SET Handler_read_first = $mysql_Handler_read_first
-SET Handler_read_key = $mysql_Handler_read_key
-SET Handler_read_next = $mysql_Handler_read_next
-SET Handler_read_prev = $mysql_Handler_read_prev
-SET Handler_read_rnd = $mysql_Handler_read_rnd
-SET Handler_read_rnd_next = $mysql_Handler_read_rnd_next
-SET Handler_rollback = $mysql_Handler_rollback
-SET Handler_savepoint = $mysql_Handler_savepoint
-SET Handler_savepoint_rollback = $mysql_Handler_savepoint_rollback
-SET Handler_update = $mysql_Handler_update
-SET Handler_write = $mysql_Handler_write
-END
-
-BEGIN mysql.table_locks $1
-SET Table_locks_immediate = $mysql_Table_locks_immediate
-SET Table_locks_waited = $mysql_Table_locks_waited
-END
-
-BEGIN mysql.select_issues $1
-SET Select_full_join = $mysql_Select_full_join
-SET Select_full_range_join = $mysql_Select_full_range_join
-SET Select_range = $mysql_Select_range
-SET Select_range_check = $mysql_Select_range_check
-SET Select_scan = $mysql_Select_scan
-END
-
-BEGIN mysql.sort_issues $1
-SET Sort_merge_passes = $mysql_Sort_merge_passes
-SET Sort_range = $mysql_Sort_range
-SET Sort_scan = $mysql_Sort_scan
+	local m x
+	for m in "${!mysql_ids[@]}"
+	do
+		x="${mysql_ids[$m]}"
+		mysql_get "${mysql_cmds[$m]}" ${mysql_opts[$m]}
+
+		if [ $? -ne 0 ]
+			then
+			unset mysql_ids[$m]
+			unset mysql_opts[$m]
+			unset mysql_cmds[$m]
+			error "failed to get values for '$m', disabling it."
+			continue
+		fi
+
+		# write the result of the work.
+		cat <<VALUESEOF
+BEGIN mysql_$x.net $1
+SET Bytes_received = ${mysql_data[Bytes_received]}
+SET Bytes_sent = ${mysql_data[Bytes_sent]}
+END
+BEGIN mysql_$x.queries $1
+SET Queries = ${mysql_data[Queries]}
+SET Questions = ${mysql_data[Questions]}
+SET Slow_queries = ${mysql_data[Slow_queries]}
+END
+BEGIN mysql_$x.handlers $1
+SET Handler_commit = ${mysql_data[Handler_commit]}
+SET Handler_delete = ${mysql_data[Handler_delete]}
+SET Handler_prepare = ${mysql_data[Handler_prepare]}
+SET Handler_read_first = ${mysql_data[Handler_read_first]}
+SET Handler_read_key = ${mysql_data[Handler_read_key]}
+SET Handler_read_next = ${mysql_data[Handler_read_next]}
+SET Handler_read_prev = ${mysql_data[Handler_read_prev]}
+SET Handler_read_rnd = ${mysql_data[Handler_read_rnd]}
+SET Handler_read_rnd_next = ${mysql_data[Handler_read_rnd_next]}
+SET Handler_rollback = ${mysql_data[Handler_rollback]}
+SET Handler_savepoint = ${mysql_data[Handler_savepoint]}
+SET Handler_savepoint_rollback = ${mysql_data[Handler_savepoint_rollback]}
+SET Handler_update = ${mysql_data[Handler_update]}
+SET Handler_write = ${mysql_data[Handler_write]}
+END
+BEGIN mysql_$x.table_locks $1
+SET Table_locks_immediate = ${mysql_data[Table_locks_immediate]}
+SET Table_locks_waited = ${mysql_data[Table_locks_waited]}
+END
+BEGIN mysql_$x.join_issues $1
+SET Select_full_join = ${mysql_data[Select_full_join]}
+SET Select_full_range_join = ${mysql_data[Select_full_range_join]}
+SET Select_range = ${mysql_data[Select_range]}
+SET Select_range_check = ${mysql_data[Select_range_check]}
+SET Select_scan = ${mysql_data[Select_scan]}
+END
+BEGIN mysql_$x.sort_issues $1
+SET Sort_merge_passes = ${mysql_data[Sort_merge_passes]}
+SET Sort_range = ${mysql_data[Sort_range]}
+SET Sort_scan = ${mysql_data[Sort_scan]}
+END
+BEGIN mysql_$x.tmp $1
+SET Created_tmp_disk_tables = ${mysql_data[Created_tmp_disk_tables]}
+SET Created_tmp_files = ${mysql_data[Created_tmp_files]}
+SET Created_tmp_tables = ${mysql_data[Created_tmp_tables]}
+END
+BEGIN mysql_$x.connections $1
+SET Connections = ${mysql_data[Connections]}
+SET Aborted_connects = ${mysql_data[Aborted_connects]}
+END
+BEGIN mysql_$x.binlog_cache $1
+SET Binlog_cache_disk_use = ${mysql_data[Binlog_cache_disk_use]}
+SET Binlog_cache_use = ${mysql_data[Binlog_cache_use]}
+END
+BEGIN mysql_$x.threads $1
+SET Threads_connected = ${mysql_data[Threads_connected]}
+SET Threads_created = ${mysql_data[Threads_created]}
+SET Threads_cached = ${mysql_data[Threads_cached]}
+SET Threads_running = ${mysql_data[Threads_running]}
+END
+BEGIN mysql_$x.thread_cache_misses $1
+SET misses = ${mysql_data[Thread_cache_misses]}
+END
+BEGIN mysql_$x.innodb_io $1
+SET Innodb_data_read = ${mysql_data[Innodb_data_read]}
+SET Innodb_data_written = ${mysql_data[Innodb_data_written]}
+END
+BEGIN mysql_$x.innodb_io_ops $1
+SET Innodb_data_reads = ${mysql_data[Innodb_data_reads]}
+SET Innodb_data_writes = ${mysql_data[Innodb_data_writes]}
+SET Innodb_data_fsyncs = ${mysql_data[Innodb_data_fsyncs]}
+END
+BEGIN mysql_$x.innodb_io_pending_ops $1
+SET Innodb_data_pending_reads = ${mysql_data[Innodb_data_pending_reads]}
+SET Innodb_data_pending_writes = ${mysql_data[Innodb_data_pending_writes]}
+SET Innodb_data_pending_fsyncs = ${mysql_data[Innodb_data_pending_fsyncs]}
 END
+BEGIN mysql_$x.innodb_log $1
+SET Innodb_log_waits = ${mysql_data[Innodb_log_waits]}
+SET Innodb_log_write_requests = ${mysql_data[Innodb_log_write_requests]}
+SET Innodb_log_writes = ${mysql_data[Innodb_log_writes]}
+END
+BEGIN mysql_$x.innodb_os_log $1
+SET Innodb_os_log_fsyncs = ${mysql_data[Innodb_os_log_fsyncs]}
+SET Innodb_os_log_pending_fsyncs = ${mysql_data[Innodb_os_log_pending_fsyncs]}
+SET Innodb_os_log_pending_writes = ${mysql_data[Innodb_os_log_pending_writes]}
+END
+BEGIN mysql_$x.innodb_os_log_io $1
+SET Innodb_os_log_written = ${mysql_data[Innodb_os_log_written]}
+END
+BEGIN mysql_$x.innodb_cur_row_lock $1
+SET Innodb_row_lock_current_waits = ${mysql_data[Innodb_row_lock_current_waits]}
+END
+BEGIN mysql_$x.innodb_rows $1
+SET Innodb_rows_inserted = ${mysql_data[Innodb_rows_inserted]}
+SET Innodb_rows_read = ${mysql_data[Innodb_rows_read]}
+SET Innodb_rows_updated = ${mysql_data[Innodb_rows_updated]}
+SET Innodb_rows_deleted = ${mysql_data[Innodb_rows_deleted]}
+END
+BEGIN mysql_$x.innodb_buffer_pool_pages $1
+SET Innodb_buffer_pool_pages_data = ${mysql_data[Innodb_buffer_pool_pages_data]}
+SET Innodb_buffer_pool_pages_dirty = ${mysql_data[Innodb_buffer_pool_pages_dirty]}
+SET Innodb_buffer_pool_pages_free = ${mysql_data[Innodb_buffer_pool_pages_free]}
+SET Innodb_buffer_pool_pages_flushed = ${mysql_data[Innodb_buffer_pool_pages_flushed]}
+SET Innodb_buffer_pool_pages_misc = ${mysql_data[Innodb_buffer_pool_pages_misc]}
+SET Innodb_buffer_pool_pages_total = ${mysql_data[Innodb_buffer_pool_pages_total]}
+END
+BEGIN mysql_$x.innodb_buffer_pool_bytes $1
+SET Innodb_buffer_pool_bytes_data = ${mysql_data[Innodb_buffer_pool_bytes_data]}
+SET Innodb_buffer_pool_bytes_dirty = ${mysql_data[Innodb_buffer_pool_bytes_dirty]}
+END
+BEGIN mysql_$x.innodb_buffer_pool_read_ahead $1
+SET Innodb_buffer_pool_read_ahead = ${mysql_data[Innodb_buffer_pool_read_ahead]}
+SET Innodb_buffer_pool_read_ahead_evicted = ${mysql_data[Innodb_buffer_pool_read_ahead_evicted]}
+SET Innodb_buffer_pool_read_ahead_rnd = ${mysql_data[Innodb_buffer_pool_read_ahead_rnd]}
+END
+BEGIN mysql_$x.innodb_buffer_pool_reqs $1
+SET Innodb_buffer_pool_read_requests = ${mysql_data[Innodb_buffer_pool_read_requests]}
+SET Innodb_buffer_pool_write_requests = ${mysql_data[Innodb_buffer_pool_write_requests]}
+END
+BEGIN mysql_$x.innodb_buffer_pool_ops $1
+SET Innodb_buffer_pool_reads = ${mysql_data[Innodb_buffer_pool_reads]}
+SET Innodb_buffer_pool_wait_free = ${mysql_data[Innodb_buffer_pool_wait_free]}
+END
+BEGIN mysql_$x.qcache_ops $1
+SET Qcache_hits hits = ${mysql_data[Qcache_hits]}
+SET Qcache_lowmem_prunes = ${mysql_data[Qcache_lowmem_prunes]}
+SET Qcache_inserts = ${mysql_data[Qcache_inserts]}
+SET Qcache_not_cached = ${mysql_data[Qcache_not_cached]}
+END
+BEGIN mysql_$x.qcache $1
+SET Qcache_queries_in_cache = ${mysql_data[Qcache_queries_in_cache]}
+END
+BEGIN mysql_$x.qcache_freemem $1
+SET Qcache_free_memory = ${mysql_data[Qcache_free_memory]}
+END
+BEGIN mysql_$x.qcache_memblocks $1
+SET Qcache_free_blocks = ${mysql_data[Qcache_free_blocks]}
+SET Qcache_total_blocks = ${mysql_data[Qcache_total_blocks]}
+END
+BEGIN mysql_$x.key_blocks $1
+SET Key_blocks_unused = ${mysql_data[Key_blocks_unused]}
+SET Key_blocks_used = ${mysql_data[Key_blocks_used]}
+SET Key_blocks_not_flushed = ${mysql_data[Key_blocks_not_flushed]}
+END
+BEGIN mysql_$x.key_requests $1
+SET Key_read_requests = ${mysql_data[Key_read_requests]}
+SET Key_write_requests = ${mysql_data[Key_write_requests]}
+END
+BEGIN mysql_$x.key_disk_ops $1
+SET Key_reads = ${mysql_data[Key_reads]}
+SET Key_writes = ${mysql_data[Key_writes]}
+END
+BEGIN mysql_$x.files $1
+SET Open_files = ${mysql_data[Open_files]}
+END
+BEGIN mysql_$x.files_rate $1
+SET Opened_files = ${mysql_data[Opened_files]}
+END
+VALUESEOF
+
+		if [ ! -z "${mysql_data[Binlog_stmt_cache_disk_use]}" ]
+			then
+			cat <<VALUESEOF
+BEGIN mysql_$x.binlog_stmt_cache $1
+SET Binlog_stmt_cache_disk_use = ${mysql_data[Binlog_stmt_cache_disk_use]}
+SET Binlog_stmt_cache_use = ${mysql_data[Binlog_stmt_cache_use]}
+END
+VALUESEOF
+		fi
 
+		if [ ! -z "${mysql_data[Connection_errors_accept]}" ]
+			then
+			cat <<VALUESEOF
+BEGIN mysql_$x.connection_errors $1
+SET Connection_errors_accept = ${mysql_data[Connection_errors_accept]}
+SET Connection_errors_internal = ${mysql_data[Connection_errors_internal]}
+SET Connection_errors_max_connections = ${mysql_data[Connection_errors_max_connections]}
+SET Connection_errors_peer_addr = ${mysql_data[Connection_errors_peer_addr]}
+SET Connection_errors_select = ${mysql_data[Connection_errors_select]}
+SET Connection_errors_tcpwrap = ${mysql_data[Connection_errors_tcpwrap]}
+END
 VALUESEOF
+		fi
+	done
 
+	[ ${#mysql_ids[@]} -eq 0 ] && error "no mysql servers left active." && return 1
 	return 0
 }