Netdata Mysql运行情况监控插件怎么用

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一：mysql文件配置
/usr/local/netdata/etc/netdata  增加配置文件mysql.conf

1. mysql_cmds[MY_A]="/usr/local/mysql/bin/mysql"
   

2. mysql_opts[MY_A]="-h localhost -uroot"

二：mysql.chart.sh 插件脚本

1. #!/bin/bash
   

2. 
   

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.
   

9. 
   

10. mysql_update_every=5
    

11. mysql_priority=60000
    

12. 
    

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

14. 
    

15. mysql_exec() {
    

16.     local ret
    

17. 
    

18.     "${@}" -s -e "show global status;"
    

19.     ret=$?
    

20. 
    

21.     [ $ret -ne 0 ] && echo "plugin_command_failure $ret"
    

22.     return $ret
    

23. }
    

24. 
    

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
     

127. 
     

128. 
     

129.     mysql_plugin_command_failure=0
     

130. 
     

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:]]+$")"
     

137. 
     

138.     [ $mysql_plugin_command_failure -eq 1 ] && return 1
     

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

140. 
     

141.     mysql_Thread_cache_misses=0
     

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

143. 
     

144.     return 0
     

145. }
     

146. 
     

147. mysql_check() {
     

148.     # this should return:
     

149.     # - 0 to enable the chart
     

150.     # - 1 to disable the chart
     

151. 
     

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

153. 
     

154.     if [ "${1}" = "tryroot" ]
     

155.         then
     

156.         tryroot=1
     

157.         shift
     

158.     fi
     

159. 
     

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

161. 
     

162.     if [ ${#mysql_opts[@]} -eq 0 ]
     

163.         then
     

164.         unconfigured=1
     

165. 
     

166.         mysql_cmds[local]="$mysql_cmd"
     

167. 
     

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
     

178. 
     

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
     

187. 
     

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
     

197. 
     

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

199.     done
     

200. 
     

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
     

212. 
     

213.     return 0
     

214. }
     

215. 
     

216. mysql_create() {
     

217.     local x
     

218. 
     

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
     

350. 
     

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
     

359. 
     

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
     

372. 
     

373.     done
     

374.     return 0
     

375. }
     

376. 
     

377. 
     

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).
     

381. 
     

382.     # do all the work to collect / calculate the values
     

383.     # for each dimension
     

384.     # remember: KEEP IT SIMPLE AND SHORT
     

385. 
     

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
     

396. 
     

397.     local m x
     

398.     for m in "${!mysql_ids[@]}"
     

399.     do
     

400.         x="${mysql_ids[$m]}"
     

401. 
     

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
     

411. 
     

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
     

574. 
     

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
     

584. 
     

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
     

599. 
     

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

601.     return 0
     

602. }

三：监控情况截图

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