1 NAME = "mysql.chart.py"
5 stderr.write(NAME + ": using MySQLdb")
6 # https://github.com/PyMySQL/mysqlclient-python
9 import pymysql as MySQLdb
10 # https://github.com/PyMySQL/PyMySQL
11 stderr.write(NAME + ": using pymysql")
13 stderr.write(NAME + ": You need to install PyMySQL module to use mysql.chart.py plugin\n")
20 'socket' : '/var/run/mysqld/mysqld.sock'
27 #query = "SHOW GLOBAL STATUS WHERE value REGEX '^[0-9]'"
28 QUERY = "SHOW GLOBAL STATUS"
39 'thread_cache_misses',
42 'innodb_io_pending_ops',
46 'innodb_cur_row_lock',
48 'innodb_buffer_pool_pages',
49 'innodb_buffer_pool_bytes',
50 'innodb_buffer_pool_read_ahead',
51 'innodb_buffer_pool_reqs',
52 'innodb_buffer_pool_ops',
67 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
69 ("Bytes_received", "in incremental 8 1024"),
70 ("Bytes_sent", "out incremental -8 1024")
73 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
75 ("Queries", "queries incremental 1 1"),
76 ("Questions", "questions incremental 1 1"),
77 ("Slow_queries", "slow_queries incremental -1 1")
80 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
82 ("Handler_commit", "commit incremental 1 1"),
83 ("Handler_delete", "delete incremental 1 1"),
84 ("Handler_prepare", "prepare incremental 1 1"),
85 ("Handler_read_first", "read_first incremental 1 1"),
86 ("Handler_read_key", "read_key incremental 1 1"),
87 ("Handler_read_next", "read_next incremental 1 1"),
88 ("Handler_read_prev", "read_prev incremental 1 1"),
89 ("Handler_read_rnd", "read_rnd incremental 1 1"),
90 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
91 ("Handler_rollback", "rollback incremental 1 1"),
92 ("Handler_savepoint", "savepoint incremental 1 1"),
93 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
94 ("Handler_update", "update incremental 1 1"),
95 ("Handler_write", "write incremental 1 1")
98 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
100 ("Table_locks_immediate", "immediate incremental 1 1"),
101 ("Table_locks_waited", "waited incremental -1 1")
104 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
106 ("Select_full_join", "full_join incremental 1 1"),
107 ("Select_full_range_join", "full_range_join incremental 1 1"),
108 ("Select_range", "range incremental 1 1"),
109 ("Select_range_check", "range_check incremental 1 1"),
110 ("Select_scan", "scan incremental 1 1"),
113 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
115 ("Sort_merge_passes", "merge_passes incremental 1 1"),
116 ("Sort_range", "range incremental 1 1"),
117 ("Sort_scan", "scan incremental 1 1"),
120 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
122 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
123 ("Created_tmp_files", "files incremental 1 1"),
124 ("Created_tmp_tables", "tables incremental 1 1"),
127 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
129 ("Connections", "all incremental 1 1"),
130 ("Aborted_connects", "aborted incremental 1 1"),
133 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
135 ("Binlog_cache_disk_use", "disk incremental 1 1"),
136 ("Binlog_cache_use", "all incremental 1 1"),
139 "'' 'mysql Threads' 'threads' threads mysql.threads line",
141 ("Threads_connected", "connected absolute 1 1"),
142 ("Threads_created", "created incremental 1 1"),
143 ("Threads_cached", "cached absolute -1 1"),
144 ("Threads_running", "running absolute 1 1"),
146 'thread_cache_misses' : (
147 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
149 ("Thread_cache_misses", "misses misses absolute 1 100"),
152 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
154 ("Innodb_data_read", "read incremental 1 1024"),
155 ("Innodb_data_written", "write incremental -1 1024"),
158 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
160 ("Innodb_data_reads", "reads incremental 1 1"),
161 ("Innodb_data_writes", "writes incremental -1 1"),
162 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
164 'innodb_io_pending_ops' : (
165 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
167 ("Innodb_data_pending_reads", "reads absolute 1 1"),
168 ("Innodb_data_pending_writes", "writes absolute -1 1"),
169 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
172 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
174 ("Innodb_log_waits", "waits incremental 1 1"),
175 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
176 ("Innodb_log_writes", "incremental -1 1"),
179 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
181 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
182 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
183 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
185 'innodb_os_log_io' : (
186 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
188 ("Innodb_os_log_written", "write incremental -1 1024"),
190 'innodb_cur_row_lock' : (
191 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
193 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
196 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
198 ("Innodb_rows_inserted", "read incremental 1 1"),
199 ("Innodb_rows_read", "deleted incremental -1 1"),
200 ("Innodb_rows_updated", "inserted incremental 1 1"),
201 ("Innodb_rows_deleted", "updated incremental -1 1"),
203 'innodb_buffer_pool_pages' : (
204 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
206 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
207 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
208 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
209 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
210 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
211 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
213 'innodb_buffer_pool_bytes' : (
214 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
216 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
217 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
219 'innodb_buffer_pool_read_ahead' : (
220 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
222 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
223 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
224 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
226 'innodb_buffer_pool_reqs' : (
227 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
229 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
230 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
232 'innodb_buffer_pool_ops' : (
233 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
235 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
236 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
239 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
241 ("Qcache_hits", "hits incremental 1 1"),
242 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
243 ("Qcache_inserts", "inserts incremental 1 1"),
244 ("Qcache_not_cached", "'not cached' incremental -1 1"),
247 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
249 ("Qcache_queries_in_cache", "queries absolute 1 1"),
252 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
254 ("Qcache_free_memory", "free absolute 1"),
256 'qcache_memblocks' : (
257 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
259 ("Qcache_free_blocks", "free absolute 1"),
260 ("Qcache_total_blocks", "total absolute 1 1"),
263 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
265 ("Key_blocks_unused", "unused absolute 1 1"),
266 ("Key_blocks_used", "used absolute -1 1"),
267 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
270 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
272 ("Key_read_requests", "reads incremental 1 1"),
273 ("Key_write_requests", "writes incremental -1 1"),
276 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
278 ("Key_reads", "reads incremental 1 1"),
279 ("Key_writes", "writes incremental -1 1"),
282 "'' 'mysql Open Files' 'files' files mysql.files line",
284 ("Open_files", "files absolute 1 1"),
287 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
289 ("Opened_files", "files incremental 1 1"),
291 'binlog_stmt_cache' : (
292 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
294 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
295 ("Binlog_stmt_cache_use", "all incremental 1 1"),
297 'connection_errors' : (
298 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
300 ("Connection_errors_accept", "accept incremental 1 1"),
301 ("Connection_errors_internal", "internal incremental 1 1"),
302 ("Connection_errors_max_connections", "max incremental 1 1"),
303 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
304 ("Connection_errors_select", "select incremental 1 1"),
305 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
312 def get_data(config):
315 cnx = connections[config['name']]
316 except KeyError as e:
317 stderr.write(NAME + ": reconnecting\n")
318 cnx = MySQLdb.connect(user=config['user'],
319 passwd=config['password'],
320 read_default_file=config['my.cnf'],
321 unix_socket=config['socket'],
324 connect_timeout=int(update_every))
325 connections[config['name']] = cnx
328 with cnx.cursor() as cursor:
329 cursor.execute(QUERY)
330 raw_data = cursor.fetchall()
331 except Exception as e:
332 stderr.write(NAME + ": cannot execute query." + str(e) + "\n")
334 del connections[config['name']]
337 return dict(raw_data)
341 # TODO what are the default credentials
343 if type(config) is str:
344 from json import loads
345 cfg = loads(config.replace("'",'"').replace('\n',' '))
347 for i in range(len(config)):
348 if 'name' not in config[i]:
349 config[i]['name'] = "srv_"+str(i)
350 if 'user' not in config[i]:
351 config[i]['user'] = 'root'
352 if 'password' not in config[i]:
353 config[i]['password'] = ''
354 if 'my.cnf' in config[i]:
355 config[i]['socket'] = ''
356 config[i]['host'] = ''
357 config[i]['port'] = 0
358 elif 'socket' in config[i]:
359 config[i]['my.cnf'] = ''
360 config[i]['host'] = ''
361 config[i]['port'] = 0
362 elif 'host' in config[i]:
363 config[i]['my.cnf'] = ''
364 config[i]['socket'] = ''
365 if 'port' in config[i]:
366 config[i]['port'] = int(config[i]['port'])
368 config[i]['port'] = 3306
372 cnx = MySQLdb.connect(user=srv['user'],
373 passwd=srv['password'],
374 read_default_file=srv['my.cnf'],
375 unix_socket=srv['socket'],
378 connect_timeout=int(update_every))
380 except Exception as e:
381 stderr.write(NAME + " has problem connecting to server: "+str(e).replace("\n"," ")+"\n")
390 global config, mysql_def
393 for line in CHARTS[name][1]:
394 mysql_def[name].append(line[0])
400 header = "CHART mysql_" + \
401 str(srv['name']) + "." + \
403 CHARTS[name][0] + " " + \
404 str(priority + idx) + " " + \
407 # check if server has this datapoint
408 for line in CHARTS[name][1]:
410 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
421 def update(interval):
427 # TODO notify user about problems with server
430 data['Thread cache misses'] = int( int(data['Threads_created']) * 10000 / int(data['Connections']))
433 for chart, dimensions in mysql_def.items():
434 header = "BEGIN mysql_" + str(srv['name']) + "." + chart + " " + str(interval) + '\n'
438 lines += "SET " + d + " = " + data[d] + '\n'
442 print(header + lines + "END")