Netdata Mysql執行情況監控外掛

百聯達發表於2016-05-10
MySql
一：mysql檔案配置
/usr/local/netdata/etc/netdata  增加配置檔案mysql.conf


點選(此處)摺疊或開啟

  1. mysql_cmds[MY_A]="/usr/local/mysql/bin/mysql"
  2. mysql_opts[MY_A]="-h localhost -uroot"


二：mysql.chart.sh 外掛指令碼


點選(此處)摺疊或開啟

  1. #!/bin/bash

  3. # http://dev.mysql.com/doc/refman/5.0/en/server-status-variables.html
  4. #
  5. # https://dev.mysql.com/doc/refman/5.1/en/show-status.html
  6. # SHOW STATUS provides server status information (see Section 5.1.6, “Server Status Variables”).
  7. # This statement does not require any privilege.
  8. # It requires only the ability to connect to the server.

  10. mysql_update_every=5
  11. mysql_priority=60000

  13. declare -A mysql_cmds=() mysql_opts=() mysql_ids=()

  15. mysql_exec() {
  16.     local ret

  18.     "${@}" -s -e "show global status;"
  19.     ret=$?

  21.     [ $ret -ne 0 ] && echo "plugin_command_failure $ret"
  22.     return $ret
  23. }

  25. mysql_get() {
  26.     unset \
  27.         mysql_Bytes_received \
  28.         mysql_Bytes_sent \
  29.         mysql_Queries \
  30.         mysql_Questions \
  31.         mysql_Slow_queries \
  32.         mysql_Handler_commit \
  33.         mysql_Handler_delete \
  34.         mysql_Handler_prepare \
  35.         mysql_Handler_read_first \
  36.         mysql_Handler_read_key \
  37.         mysql_Handler_read_next \
  38.         mysql_Handler_read_prev \
  39.         mysql_Handler_read_rnd \
  40.         mysql_Handler_read_rnd_next \
  41.         mysql_Handler_rollback \
  42.         mysql_Handler_savepoint \
  43.         mysql_Handler_savepoint_rollback \
  44.         mysql_Handler_update \
  45.         mysql_Handler_write \
  46.         mysql_Table_locks_immediate \
  47.         mysql_Table_locks_waited \
  48.         mysql_Select_full_join \
  49.         mysql_Select_full_range_join \
  50.         mysql_Select_range \
  51.         mysql_Select_range_check \
  52.         mysql_Select_scan \
  53.         mysql_Sort_merge_passes \
  54.         mysql_Sort_range \
  55.         mysql_Sort_scan \
  56.         mysql_Created_tmp_disk_tables \
  57.         mysql_Created_tmp_files \
  58.         mysql_Created_tmp_tables \
  59.         mysql_Connection_errors_accept \
  60.         mysql_Connection_errors_internal \
  61.         mysql_Connection_errors_max_connections \
  62.         mysql_Connection_errors_peer_addr \
  63.         mysql_Connection_errors_select \
  64.         mysql_Connection_errors_tcpwrap \
  65.         mysql_Connections \
  66.         mysql_Aborted_connects \
  67.         mysql_Binlog_cache_disk_use \
  68.         mysql_Binlog_cache_use \
  69.         mysql_Binlog_stmt_cache_disk_use \
  70.         mysql_Binlog_stmt_cache_use \
  71.         mysql_Threads_connected \
  72.         mysql_Threads_created \
  73.         mysql_Threads_cached \
  74.         mysql_Threads_running \
  75.         mysql_Innodb_data_read \
  76.         mysql_Innodb_data_written \
  77.         mysql_Innodb_data_reads \
  78.         mysql_Innodb_data_writes \
  79.         mysql_Innodb_data_fsyncs \
  80.         mysql_Innodb_data_pending_reads \
  81.         mysql_Innodb_data_pending_writes \
  82.         mysql_Innodb_data_pending_fsyncs \
  83.         mysql_Innodb_log_waits \
  84.         mysql_Innodb_log_write_requests \
  85.         mysql_Innodb_log_writes \
  86.         mysql_Innodb_os_log_fsyncs \
  87.         mysql_Innodb_os_log_pending_fsyncs \
  88.         mysql_Innodb_os_log_pending_writes \
  89.         mysql_Innodb_os_log_written \
  90.         mysql_Innodb_row_lock_current_waits \
  91.         mysql_Innodb_rows_inserted \
  92.         mysql_Innodb_rows_read \
  93.         mysql_Innodb_rows_updated \
  94.         mysql_Innodb_rows_deleted \
  95.         mysql_Innodb_buffer_pool_pages_data \
  96.         mysql_Innodb_buffer_pool_pages_dirty \
  97.         mysql_Innodb_buffer_pool_pages_flushed \
  98.         mysql_Innodb_buffer_pool_pages_free \
  99.         mysql_Innodb_buffer_pool_pages_misc \
  100.         mysql_Innodb_buffer_pool_pages_total \
  101.         mysql_Innodb_buffer_pool_bytes_data \
  102.         mysql_Innodb_buffer_pool_bytes_dirty \
  103.         mysql_Innodb_buffer_pool_read_ahead_rnd \
  104.         mysql_Innodb_buffer_pool_read_ahead \
  105.         mysql_Innodb_buffer_pool_read_ahead_evicted \
  106.         mysql_Innodb_buffer_pool_read_requests \
  107.         mysql_Innodb_buffer_pool_reads \
  108.         mysql_Innodb_buffer_pool_wait_free \
  109.         mysql_Innodb_buffer_pool_write_requests \
  110.         mysql_Qcache_free_blocks \
  111.         mysql_Qcache_free_memory \
  112.         mysql_Qcache_hits \
  113.         mysql_Qcache_inserts \
  114.         mysql_Qcache_lowmem_prunes \
  115.         mysql_Qcache_not_cached \
  116.         mysql_Qcache_queries_in_cache \
  117.         mysql_Qcache_total_blocks \
  118.         mysql_Key_blocks_not_flushed \
  119.         mysql_Key_blocks_unused \
  120.         mysql_Key_blocks_used \
  121.         mysql_Key_read_requests \
  122.         mysql_Key_reads \
  123.         mysql_Key_write_requests \
  124.         mysql_Key_writes \
  125.         mysql_Open_files \
  126.         mysql_Opened_files


  129.     mysql_plugin_command_failure=0

  131.     eval "$(mysql_exec "${@}" |\
  132.         sed \
  133.             -e "s/[[:space:]]\+/ /g" \
  134.             -e "s/\./_/g" \
  135.             -e "s/^\([a-zA-Z0-9_]\+\)[[:space:]]\+\([0-9]\+\)$/mysql_\1=\2/g" |\
  136.         egrep "^mysql_[a-zA-Z0-9_]+=[[:digit:]]+$")"

  138.     [ $mysql_plugin_command_failure -eq 1 ] && return 1
  139.     [ -z "$mysql_Connections" ] && return 1

  141.     mysql_Thread_cache_misses=0
  142.     [ $(( mysql_Connections + 1 - 1 )) -gt 0 ] && mysql_Thread_cache_misses=$(( mysql_Threads_created * 10000 / mysql_Connections ))

  144.     return 0
  145. }

  147. mysql_check() {
  148.     # this should return:
  149.     # - 0 to enable the chart
  150.     # - 1 to disable the chart

  152.     local x m mysql_cmd tryroot=0 unconfigured=0

  154.     if [ "${1}" = "tryroot" ]
  155.         then
  156.         tryroot=1
  157.         shift
  158.     fi

  160.     [ -z "${mysql_cmd}" ] && mysql_cmd="$(which mysql)"

  162.     if [ ${#mysql_opts[@]} -eq 0 ]
  163.         then
  164.         unconfigured=1

  166.         mysql_cmds[local]="$mysql_cmd"

  168.         if [ $tryroot -eq 1 ]
  169.             then
  170.             # the user has not configured us for mysql access
  171.             # if the root user is passwordless in mysql, we can
  172.             # attempt to connect to mysql as root
  173.             mysql_opts[local]="-u root"
  174.         else
  175.             mysql_opts[local]=
  176.         fi
  177.     fi

  179.     # check once if the url works
  180.     for m in "${!mysql_opts[@]}"
  181.     do
  182.         [ -z "${mysql_cmds[$m]}" ] && mysql_cmds[$m]="$mysql_cmd"
  183.         if [ -z "${mysql_cmds[$m]}" ]
  184.             then
  185.             echo >&2 "$PROGRAM_NAME: mysql: cannot get mysql command for '$m'. Please set mysql_cmds[$m]='/path/to/mysql', in $confd/mysql.conf"
  186.         fi

  188.         mysql_get "${mysql_cmds[$m]}" ${mysql_opts[$m]}
  189.         if [ ! $? -eq 0 ]
  190.         then
  191.             echo >&2 "$PROGRAM_NAME: mysql: cannot get global status for '$m'. Please set mysql_opts[$m]='options' to whatever needed to get connected to the mysql server, in $confd/mysql.conf"
  192.             unset mysql_cmds[$m]
  193.             unset mysql_opts[$m]
  194.             unset mysql_ids[$m]
  195.             continue
  196.         fi

  198.         mysql_ids[$m]="$( fixid "$m" )"
  199.     done

  201.     if [ ${#mysql_opts[@]} -eq 0 ]
  202.         then
  203.         if [ ${unconfigured} -eq 1 && ${tryroot} -eq 0 ]
  204.             then
  205.             mysql_check tryroot "${@}"
  206.             return $?
  207.         else
  208.             echo >&2 "$PROGRAM_NAME: mysql: no mysql servers found. Please set mysql_opts[name]='options' to whatever needed to get connected to the mysql server, in $confd/mysql.conf"
  209.             return 1
  210.         fi
  211.     fi

  213.     return 0
  214. }

  216. mysql_create() {
  217.     local x

  219.     # create the charts
  220.     for x in "${mysql_ids[@]}"
  221.     do
  222.         cat <<EOF
  223. CHART mysql_$x.net '' "mysql Bandwidth" "kilobits/s" bandwidth mysql.net area $((mysql_priority + 1)) $mysql_update_every
  224. DIMENSION Bytes_received in incremental 8 1024
  225. DIMENSION Bytes_sent out incremental -8 1024
  226. CHART mysql_$x.queries '' "mysql Queries" "queries/s" queries mysql.queries line $((mysql_priority + 2)) $mysql_update_every
  227. DIMENSION Queries queries incremental 1 1
  228. DIMENSION Questions questions incremental 1 1
  229. DIMENSION Slow_queries slow_queries incremental -1 1
  230. CHART mysql_$x.handlers '' "mysql Handlers" "handlers/s" handlers mysql.handlers line $((mysql_priority + 3)) $mysql_update_every
  231. DIMENSION Handler_commit commit incremental 1 1
  232. DIMENSION Handler_delete delete incremental 1 1
  233. DIMENSION Handler_prepare prepare incremental 1 1
  234. DIMENSION Handler_read_first read_first incremental 1 1
  235. DIMENSION Handler_read_key read_key incremental 1 1
  236. DIMENSION Handler_read_next read_next incremental 1 1
  237. DIMENSION Handler_read_prev read_prev incremental 1 1
  238. DIMENSION Handler_read_rnd read_rnd incremental 1 1
  239. DIMENSION Handler_read_rnd_next read_rnd_next incremental 1 1
  240. DIMENSION Handler_rollback rollback incremental 1 1
  241. DIMENSION Handler_savepoint savepoint incremental 1 1
  242. DIMENSION Handler_savepoint_rollback savepoint_rollback incremental 1 1
  243. DIMENSION Handler_update update incremental 1 1
  244. DIMENSION Handler_write write incremental 1 1
  245. CHART mysql_$x.table_locks '' "mysql Tables Locks" "locks/s" locks mysql.table_locks line $((mysql_priority + 4)) $mysql_update_every
  246. DIMENSION Table_locks_immediate immediate incremental 1 1
  247. DIMENSION Table_locks_waited waited incremental -1 1
  248. CHART mysql_$x.join_issues '' "mysql Select Join Issues" "joins/s" issues mysql.join_issues line $((mysql_priority + 5)) $mysql_update_every
  249. DIMENSION Select_full_join full_join incremental 1 1
  250. DIMENSION Select_full_range_join full_range_join incremental 1 1
  251. DIMENSION Select_range range incremental 1 1
  252. DIMENSION Select_range_check range_check incremental 1 1
  253. DIMENSION Select_scan scan incremental 1 1
  254. CHART mysql_$x.sort_issues '' "mysql Sort Issues" "issues/s" issues mysql.sort.issues line $((mysql_priority + 6)) $mysql_update_every
  255. DIMENSION Sort_merge_passes merge_passes incremental 1 1
  256. DIMENSION Sort_range range incremental 1 1
  257. DIMENSION Sort_scan scan incremental 1 1
  258. CHART mysql_$x.tmp '' "mysql Tmp Operations" "counter" temporaries mysql.tmp line $((mysql_priority + 7)) $mysql_update_every
  259. DIMENSION Created_tmp_disk_tables disk_tables incremental 1 1
  260. DIMENSION Created_tmp_files files incremental 1 1
  261. DIMENSION Created_tmp_tables tables incremental 1 1
  262. CHART mysql_$x.connections '' "mysql Connections" "connections/s" connections mysql.connections line $((mysql_priority + 8)) $mysql_update_every
  263. DIMENSION Connections all incremental 1 1
  264. DIMENSION Aborted_connects aborded incremental 1 1
  265. CHART mysql_$x.binlog_cache '' "mysql Binlog Cache" "transactions/s" binlog mysql.binlog_cache line $((mysql_priority + 9)) $mysql_update_every
  266. DIMENSION Binlog_cache_disk_use disk incremental 1 1
  267. DIMENSION Binlog_cache_use all incremental 1 1
  268. CHART mysql_$x.threads '' "mysql Threads" "threads" threads mysql.threads line $((mysql_priority + 10)) $mysql_update_every
  269. DIMENSION Threads_connected connected absolute 1 1
  270. DIMENSION Threads_created created incremental 1 1
  271. DIMENSION Threads_cached cached absolute -1 1
  272. DIMENSION Threads_running running absolute 1 1
  273. CHART mysql_$x.thread_cache_misses '' "mysql Threads Cache Misses" "misses" threads mysql.thread_cache_misses area $((mysql_priority + 11)) $mysql_update_every
  274. DIMENSION misses misses absolute 1 100
  275. CHART mysql_$x.innodb_io '' "mysql InnoDB I/O Bandwidth" "kilobytes/s" innodb mysql.innodb_io area $((mysql_priority + 12)) $mysql_update_every
  276. DIMENSION Innodb_data_read read incremental 1 1024
  277. DIMENSION Innodb_data_written write incremental -1 1024
  278. CHART mysql_$x.innodb_io_ops '' "mysql InnoDB I/O Operations" "operations/s" innodb mysql.innodb_io_ops line $((mysql_priority + 13)) $mysql_update_every
  279. DIMENSION Innodb_data_reads reads incremental 1 1
  280. DIMENSION Innodb_data_writes writes incremental -1 1
  281. DIMENSION Innodb_data_fsyncs fsyncs incremental 1 1
  282. CHART mysql_$x.innodb_io_pending_ops '' "mysql InnoDB Pending I/O Operations" "operations" innodb mysql.innodb_io_pending_ops line $((mysql_priority + 14)) $mysql_update_every
  283. DIMENSION Innodb_data_pending_reads reads absolute 1 1
  284. DIMENSION Innodb_data_pending_writes writes absolute -1 1
  285. DIMENSION Innodb_data_pending_fsyncs fsyncs absolute 1 1
  286. CHART mysql_$x.innodb_log '' "mysql InnoDB Log Operations" "operations/s" innodb mysql.innodb_log line $((mysql_priority + 15)) $mysql_update_every
  287. DIMENSION Innodb_log_waits waits incremental 1 1
  288. DIMENSION Innodb_log_write_requests write_requests incremental -1 1
  289. DIMENSION Innodb_log_writes writes incremental -1 1
  290. CHART mysql_$x.innodb_os_log '' "mysql InnoDB OS Log Operations" "operations" innodb mysql.innodb_os_log line $((mysql_priority + 16)) $mysql_update_every
  291. DIMENSION Innodb_os_log_fsyncs fsyncs incremental 1 1
  292. DIMENSION Innodb_os_log_pending_fsyncs pending_fsyncs absolute 1 1
  293. DIMENSION Innodb_os_log_pending_writes pending_writes absolute -1 1
  294. CHART mysql_$x.innodb_os_log_io '' "mysql InnoDB OS Log Bandwidth" "kilobytes/s" innodb mysql.innodb_os_log_io area $((mysql_priority + 17)) $mysql_update_every
  295. DIMENSION Innodb_os_log_written write incremental -1 1024
  296. CHART mysql_$x.innodb_cur_row_lock '' "mysql InnoDB Current Row Locks" "operations" innodb mysql.innodb_cur_row_lock area $((mysql_priority + 18)) $mysql_update_every
  297. DIMENSION Innodb_row_lock_current_waits current_waits absolute 1 1
  298. CHART mysql_$x.innodb_rows '' "mysql InnoDB Row Operations" "operations/s" innodb mysql.innodb_rows area $((mysql_priority + 19)) $mysql_update_every
  299. DIMENSION Innodb_rows_read read incremental 1 1
  300. DIMENSION Innodb_rows_deleted deleted incremental -1 1
  301. DIMENSION Innodb_rows_inserted inserted incremental 1 1
  302. DIMENSION Innodb_rows_updated updated incremental -1 1
  303. CHART mysql_$x.innodb_buffer_pool_pages '' "mysql InnoDB Buffer Pool Pages" "pages" innodb mysql.innodb_buffer_pool_pages line $((mysql_priority + 20)) $mysql_update_every
  304. DIMENSION Innodb_buffer_pool_pages_data data absolute 1 1
  305. DIMENSION Innodb_buffer_pool_pages_dirty dirty absolute -1 1
  306. DIMENSION Innodb_buffer_pool_pages_free free absolute 1 1
  307. DIMENSION Innodb_buffer_pool_pages_flushed flushed incremental -1 1
  308. DIMENSION Innodb_buffer_pool_pages_misc misc absolute -1 1
  309. DIMENSION Innodb_buffer_pool_pages_total total absolute 1 1
  310. CHART mysql_$x.innodb_buffer_pool_bytes '' "mysql InnoDB Buffer Pool Bytes" "MB" innodb mysql.innodb_buffer_pool_bytes area $((mysql_priority + 21)) $mysql_update_every
  311. DIMENSION Innodb_buffer_pool_bytes_data data absolute 1 $((1024 * 1024))
  312. DIMENSION Innodb_buffer_pool_bytes_dirty dirty absolute -1 $((1024 * 1024))
  313. CHART mysql_$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)) $mysql_update_every
  314. DIMENSION Innodb_buffer_pool_read_ahead all incremental 1 1
  315. DIMENSION Innodb_buffer_pool_read_ahead_evicted evicted incremental -1 1
  316. DIMENSION Innodb_buffer_pool_read_ahead_rnd random incremental 1 1
  317. CHART mysql_$x.innodb_buffer_pool_reqs '' "mysql InnoDB Buffer Pool Requests" "requests/s" innodb mysql.innodb_buffer_pool_reqs area $((mysql_priority + 23)) $mysql_update_every
  318. DIMENSION Innodb_buffer_pool_read_requests reads incremental 1 1
  319. DIMENSION Innodb_buffer_pool_write_requests writes incremental -1 1
  320. CHART mysql_$x.innodb_buffer_pool_ops '' "mysql InnoDB Buffer Pool Operations" "operations/s" innodb mysql.innodb_buffer_pool_ops area $((mysql_priority + 24)) $mysql_update_every
  321. DIMENSION Innodb_buffer_pool_reads 'disk reads' incremental 1 1
  322. DIMENSION Innodb_buffer_pool_wait_free 'wait free' incremental -1 1
  323. CHART mysql_$x.qcache_ops '' "mysql QCache Operations" "queries/s" qcache mysql.qcache_ops line $((mysql_priority + 25)) $mysql_update_every
  324. DIMENSION Qcache_hits hits incremental 1 1
  325. DIMENSION Qcache_lowmem_prunes 'lowmem prunes' incremental -1 1
  326. DIMENSION Qcache_inserts inserts incremental 1 1
  327. DIMENSION Qcache_not_cached 'not cached' incremental -1 1
  328. CHART mysql_$x.qcache '' "mysql QCache Queries in Cache" "queries" qcache mysql.qcache line $((mysql_priority + 26)) $mysql_update_every
  329. DIMENSION Qcache_queries_in_cache queries absolute 1 1
  330. CHART mysql_$x.qcache_freemem '' "mysql QCache Free Memory" "MB" qcache mysql.qcache_freemem area $((mysql_priority + 27)) $mysql_update_every
  331. DIMENSION Qcache_free_memory free absolute 1 $((1024 * 1024))
  332. CHART mysql_$x.qcache_memblocks '' "mysql QCache Memory Blocks" "blocks" qcache mysql.qcache_memblocks line $((mysql_priority + 28)) $mysql_update_every
  333. DIMENSION Qcache_free_blocks free absolute 1 1
  334. DIMENSION Qcache_total_blocks total absolute 1 1
  335. CHART mysql_$x.key_blocks '' "mysql MyISAM Key Cache Blocks" "blocks" myisam mysql.key_blocks line $((mysql_priority + 29)) $mysql_update_every
  336. DIMENSION Key_blocks_unused unused absolute 1 1
  337. DIMENSION Key_blocks_used used absolute -1 1
  338. DIMENSION Key_blocks_not_flushed 'not flushed' absolute 1 1
  339. CHART mysql_$x.key_requests '' "mysql MyISAM Key Cache Requests" "requests/s" myisam mysql.key_requests area $((mysql_priority + 30)) $mysql_update_every
  340. DIMENSION Key_read_requests reads incremental 1 1
  341. DIMENSION Key_write_requests writes incremental -1 1
  342. CHART mysql_$x.key_disk_ops '' "mysql MyISAM Key Cache Disk Operations" "operations/s" myisam mysql.key_disk_ops area $((mysql_priority + 31)) $mysql_update_every
  343. DIMENSION Key_reads reads incremental 1 1
  344. DIMENSION Key_writes writes incremental -1 1
  345. CHART mysql_$x.files '' "mysql Open Files" "files" files mysql.files line $((mysql_priority + 32)) $mysql_update_every
  346. DIMENSION Open_files files absolute 1 1
  347. CHART mysql_$x.files_rate '' "mysql Opened Files Rate" "files/s" files mysql.files_rate line $((mysql_priority + 33)) $mysql_update_every
  348. DIMENSION Opened_files files incremental 1 1
  349. EOF

  351.     if [ ! -z "$mysql_Binlog_stmt_cache_disk_use" ]
  352.         then
  353.         cat <<EOF
  354. CHART mysql_$x.binlog_stmt_cache '' "mysql Binlog Statement Cache" "statements/s" binlog mysql.binlog_stmt_cache line $((mysql_priority + 50)) $mysql_update_every
  355. DIMENSION Binlog_stmt_cache_disk_use disk incremental 1 1
  356. DIMENSION Binlog_stmt_cache_use all incremental 1 1
  357. EOF
  358.     fi

  360.     if [ ! -z "$mysql_Connection_errors_accept" ]
  361.         then
  362.         cat <<EOF
  363. CHART mysql_$x.connection_errors '' "mysql Connection Errors" "connections/s" connections mysql.connection_errors line $((mysql_priority + 51)) $mysql_update_every
  364. DIMENSION Connection_errors_accept accept incremental 1 1
  365. DIMENSION Connection_errors_internal internal incremental 1 1
  366. DIMENSION Connection_errors_max_connections max incremental 1 1
  367. DIMENSION Connection_errors_peer_addr peer_addr incremental 1 1
  368. DIMENSION Connection_errors_select select incremental 1 1
  369. DIMENSION Connection_errors_tcpwrap tcpwrap incremental 1 1
  370. EOF
  371.     fi

  373.     done
  374.     return 0
  375. }


  378. mysql_update() {
  379.     # the first argument to this function is the microseconds since last update
  380.     # pass this parameter to the BEGIN statement (see bellow).

  382.     # do all the work to collect / calculate the values
  383.     # for each dimension
  384.     # remember: KEEP IT SIMPLE AND SHORT

  386.     # 1. get the counters page from mysql
  387.     # 2. sed to remove spaces; replace . with _; remove spaces around =; prepend each line with: local mysql_
  388.     # 3. egrep lines starting with:
  389.     # local mysql_client_http_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
  390.     # local mysql_server_all_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
  391.     # 4. then execute this as a script with the eval
  392.     #
  393.     # be very carefull with eval:
  394.     # prepare the script and always grep at the end the lines that are usefull, so that
  395.     # even if something goes wrong, no other code can be executed

  397.     local m x
  398.     for m in "${!mysql_ids[@]}"
  399.     do
  400.         x="${mysql_ids[$m]}"

  402.         mysql_get "${mysql_cmds[$m]}" ${mysql_opts[$m]}
  403.         if [ $? -ne 0 ]
  404.             then
  405.             unset mysql_ids[$m]
  406.             unset mysql_opts[$m]
  407.             unset mysql_cmds[$m]
  408.             echo >&2 "$PROGRAM_NAME: mysql: failed to get values for '$m', disabling it."
  409.             continue
  410.         fi

  412.         # write the result of the work.
  413.         cat <<VALUESEOF
  414. BEGIN mysql_$x.net $1
  415. SET Bytes_received = $mysql_Bytes_received
  416. SET Bytes_sent = $mysql_Bytes_sent
  417. END
  418. BEGIN mysql_$x.queries $1
  419. SET Queries = $mysql_Queries
  420. SET Questions = $mysql_Questions
  421. SET Slow_queries = $mysql_Slow_queries
  422. END
  423. BEGIN mysql_$x.handlers $1
  424. SET Handler_commit = $mysql_Handler_commit
  425. SET Handler_delete = $mysql_Handler_delete
  426. SET Handler_prepare = $mysql_Handler_prepare
  427. SET Handler_read_first = $mysql_Handler_read_first
  428. SET Handler_read_key = $mysql_Handler_read_key
  429. SET Handler_read_next = $mysql_Handler_read_next
  430. SET Handler_read_prev = $mysql_Handler_read_prev
  431. SET Handler_read_rnd = $mysql_Handler_read_rnd
  432. SET Handler_read_rnd_next = $mysql_Handler_read_rnd_next
  433. SET Handler_rollback = $mysql_Handler_rollback
  434. SET Handler_savepoint = $mysql_Handler_savepoint
  435. SET Handler_savepoint_rollback = $mysql_Handler_savepoint_rollback
  436. SET Handler_update = $mysql_Handler_update
  437. SET Handler_write = $mysql_Handler_write
  438. END
  439. BEGIN mysql_$x.table_locks $1
  440. SET Table_locks_immediate = $mysql_Table_locks_immediate
  441. SET Table_locks_waited = $mysql_Table_locks_waited
  442. END
  443. BEGIN mysql_$x.join_issues $1
  444. SET Select_full_join = $mysql_Select_full_join
  445. SET Select_full_range_join = $mysql_Select_full_range_join
  446. SET Select_range = $mysql_Select_range
  447. SET Select_range_check = $mysql_Select_range_check
  448. SET Select_scan = $mysql_Select_scan
  449. END
  450. BEGIN mysql_$x.sort_issues $1
  451. SET Sort_merge_passes = $mysql_Sort_merge_passes
  452. SET Sort_range = $mysql_Sort_range
  453. SET Sort_scan = $mysql_Sort_scan
  454. END
  455. BEGIN mysql_$x.tmp $1
  456. SET Created_tmp_disk_tables = $mysql_Created_tmp_disk_tables
  457. SET Created_tmp_files = $mysql_Created_tmp_files
  458. SET Created_tmp_tables = $mysql_Created_tmp_tables
  459. END
  460. BEGIN mysql_$x.connections $1
  461. SET Connections = $mysql_Connections
  462. SET Aborted_connects = $mysql_Aborted_connects
  463. END
  464. BEGIN mysql_$x.binlog_cache $1
  465. SET Binlog_cache_disk_use = $mysql_Binlog_cache_disk_use
  466. SET Binlog_cache_use = $mysql_Binlog_cache_use
  467. END
  468. BEGIN mysql_$x.threads $1
  469. SET Threads_connected = $mysql_Threads_connected
  470. SET Threads_created = $mysql_Threads_created
  471. SET Threads_cached = $mysql_Threads_cached
  472. SET Threads_running = $mysql_Threads_running
  473. END
  474. BEGIN mysql_$x.thread_cache_misses $1
  475. SET misses = $mysql_Thread_cache_misses
  476. END
  477. BEGIN mysql_$x.innodb_io $1
  478. SET Innodb_data_read = $mysql_Innodb_data_read
  479. SET Innodb_data_written = $mysql_Innodb_data_written
  480. END
  481. BEGIN mysql_$x.innodb_io_ops $1
  482. SET Innodb_data_reads = $mysql_Innodb_data_reads
  483. SET Innodb_data_writes = $mysql_Innodb_data_writes
  484. SET Innodb_data_fsyncs = $mysql_Innodb_data_fsyncs
  485. END
  486. BEGIN mysql_$x.innodb_io_pending_ops $1
  487. SET Innodb_data_pending_reads = $mysql_Innodb_data_pending_reads
  488. SET Innodb_data_pending_writes = $mysql_Innodb_data_pending_writes
  489. SET Innodb_data_pending_fsyncs = $mysql_Innodb_data_pending_fsyncs
  490. END
  491. BEGIN mysql_$x.innodb_log $1
  492. SET Innodb_log_waits = $mysql_Innodb_log_waits
  493. SET Innodb_log_write_requests = $mysql_Innodb_log_write_requests
  494. SET Innodb_log_writes = $mysql_Innodb_log_writes
  495. END
  496. BEGIN mysql_$x.innodb_os_log $1
  497. SET Innodb_os_log_fsyncs = $mysql_Innodb_os_log_fsyncs
  498. SET Innodb_os_log_pending_fsyncs = $mysql_Innodb_os_log_pending_fsyncs
  499. SET Innodb_os_log_pending_writes = $mysql_Innodb_os_log_pending_writes
  500. END
  501. BEGIN mysql_$x.innodb_os_log_io $1
  502. SET Innodb_os_log_written = $mysql_Innodb_os_log_written
  503. END
  504. BEGIN mysql_$x.innodb_cur_row_lock $1
  505. SET Innodb_row_lock_current_waits = $mysql_Innodb_row_lock_current_waits
  506. END
  507. BEGIN mysql_$x.innodb_rows $1
  508. SET Innodb_rows_inserted = $mysql_Innodb_rows_inserted
  509. SET Innodb_rows_read = $mysql_Innodb_rows_read
  510. SET Innodb_rows_updated = $mysql_Innodb_rows_updated
  511. SET Innodb_rows_deleted = $mysql_Innodb_rows_deleted
  512. END
  513. BEGIN mysql_$x.innodb_buffer_pool_pages $1
  514. SET Innodb_buffer_pool_pages_data = $mysql_Innodb_buffer_pool_pages_data
  515. SET Innodb_buffer_pool_pages_dirty = $mysql_Innodb_buffer_pool_pages_dirty
  516. SET Innodb_buffer_pool_pages_free = $mysql_Innodb_buffer_pool_pages_free
  517. SET Innodb_buffer_pool_pages_flushed = $mysql_Innodb_buffer_pool_pages_flushed
  518. SET Innodb_buffer_pool_pages_misc = $mysql_Innodb_buffer_pool_pages_misc
  519. SET Innodb_buffer_pool_pages_total = $mysql_Innodb_buffer_pool_pages_total
  520. END
  521. BEGIN mysql_$x.innodb_buffer_pool_bytes $1
  522. SET Innodb_buffer_pool_bytes_data = $mysql_Innodb_buffer_pool_bytes_data
  523. SET Innodb_buffer_pool_bytes_dirty = $mysql_Innodb_buffer_pool_bytes_dirty
  524. END
  525. BEGIN mysql_$x.innodb_buffer_pool_read_ahead $1
  526. SET Innodb_buffer_pool_read_ahead = $mysql_Innodb_buffer_pool_read_ahead
  527. SET Innodb_buffer_pool_read_ahead_evicted = $mysql_Innodb_buffer_pool_read_ahead_evicted
  528. SET Innodb_buffer_pool_read_ahead_rnd = $mysql_Innodb_buffer_pool_read_ahead_rnd
  529. END
  530. BEGIN mysql_$x.innodb_buffer_pool_reqs $1
  531. SET Innodb_buffer_pool_read_requests = $mysql_Innodb_buffer_pool_read_requests
  532. SET Innodb_buffer_pool_write_requests = $mysql_Innodb_buffer_pool_write_requests
  533. END
  534. BEGIN mysql_$x.innodb_buffer_pool_ops $1
  535. SET Innodb_buffer_pool_reads = $mysql_Innodb_buffer_pool_reads
  536. SET Innodb_buffer_pool_wait_free = $mysql_Innodb_buffer_pool_wait_free
  537. END
  538. BEGIN mysql_$x.qcache_ops $1
  539. SET Qcache_hits hits = $mysql_Qcache_hits
  540. SET Qcache_lowmem_prunes = $mysql_Qcache_lowmem_prunes
  541. SET Qcache_inserts inserts = $mysql_Qcache_inserts inserts
  542. SET Qcache_not_cached = $mysql_Qcache_not_cached
  543. END
  544. BEGIN mysql_$x.qcache $1
  545. SET Qcache_queries_in_cache = $mysql_Qcache_queries_in_cache
  546. END
  547. BEGIN mysql_$x.qcache_freemem $1
  548. SET Qcache_free_memory = $mysql_Qcache_free_memory
  549. END
  550. BEGIN mysql_$x.qcache_memblocks $1
  551. SET Qcache_free_blocks = $mysql_Qcache_free_blocks
  552. SET Qcache_total_blocks = $mysql_Qcache_total_blocks
  553. END
  554. BEGIN mysql_$x.key_blocks $1
  555. SET Key_blocks_unused = $mysql_Key_blocks_unused
  556. SET Key_blocks_used = $mysql_Key_blocks_used
  557. SET Key_blocks_not_flushed = $mysql_Key_blocks_not_flushed
  558. END
  559. BEGIN mysql_$x.key_requests $1
  560. SET Key_read_requests = $mysql_Key_read_requests
  561. SET Key_write_requests = $mysql_Key_write_requests
  562. END
  563. BEGIN mysql_$x.key_disk_ops $1
  564. SET Key_reads = $mysql_Key_reads
  565. SET Key_writes = $mysql_Key_writes
  566. END
  567. BEGIN mysql_$x.files $1
  568. SET Open_files = $mysql_Open_files
  569. END
  570. BEGIN mysql_$x.files_rate $1
  571. SET Opened_files = $mysql_Opened_files
  572. END
  573. VALUESEOF

  575.         if [ ! -z "$mysql_Binlog_stmt_cache_disk_use" ]
  576.             then
  577.             cat <<VALUESEOF
  578. BEGIN mysql_$x.binlog_stmt_cache $1
  579. SET Binlog_stmt_cache_disk_use = $mysql_Binlog_stmt_cache_disk_use
  580. SET Binlog_stmt_cache_use = $mysql_Binlog_stmt_cache_use
  581. END
  582. VALUESEOF
  583.         fi

  585.         if [ ! -z "$mysql_Connection_errors_accept" ]
  586.             then
  587.             cat <<VALUESEOF
  588. BEGIN mysql_$x.connection_errors $1
  589. SET Connection_errors_accept = $mysql_Connection_errors_accept
  590. SET Connection_errors_internal = $mysql_Connection_errors_internal
  591. SET Connection_errors_max_connections = $mysql_Connection_errors_max_connections
  592. SET Connection_errors_peer_addr = $mysql_Connection_errors_peer_addr
  593. SET Connection_errors_select = $mysql_Connection_errors_select
  594. SET Connection_errors_tcpwrap = $mysql_Connection_errors_tcpwrap
  595. END
  596. VALUESEOF
  597.         fi
  598.     done

  600.     [ ${#mysql_ids[@]} -eq 0 ] && echo >&2 "$PROGRAM_NAME: mysql: no mysql servers left active." && return 1
  601.     return 0
  602. }





三：監控情況截圖

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