3 NAME = "mysql.chart.py"
7 stderr.write(NAME + ": using MySQLdb")
8 # https://github.com/PyMySQL/mysqlclient-python
11 import pymysql as MySQLdb
12 # https://github.com/PyMySQL/PyMySQL
13 stderr.write(NAME + ": using pymysql")
15 stderr.write(NAME + ": You need to install PyMySQL module to use mysql.chart.py plugin\n")
22 'socket' : '/var/run/mysqld/mysqld.sock'
29 #query = "SHOW GLOBAL STATUS WHERE value REGEX '^[0-9]'"
30 QUERY = "SHOW GLOBAL STATUS"
41 'thread_cache_misses',
44 'innodb_io_pending_ops',
48 'innodb_cur_row_lock',
50 'innodb_buffer_pool_pages',
51 'innodb_buffer_pool_bytes',
52 'innodb_buffer_pool_read_ahead',
53 'innodb_buffer_pool_reqs',
54 'innodb_buffer_pool_ops',
69 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
71 ("Bytes_received", "in incremental 8 1024"),
72 ("Bytes_sent", "out incremental -8 1024")
75 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
77 ("Queries", "queries incremental 1 1"),
78 ("Questions", "questions incremental 1 1"),
79 ("Slow_queries", "slow_queries incremental -1 1")
82 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
84 ("Handler_commit", "commit incremental 1 1"),
85 ("Handler_delete", "delete incremental 1 1"),
86 ("Handler_prepare", "prepare incremental 1 1"),
87 ("Handler_read_first", "read_first incremental 1 1"),
88 ("Handler_read_key", "read_key incremental 1 1"),
89 ("Handler_read_next", "read_next incremental 1 1"),
90 ("Handler_read_prev", "read_prev incremental 1 1"),
91 ("Handler_read_rnd", "read_rnd incremental 1 1"),
92 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
93 ("Handler_rollback", "rollback incremental 1 1"),
94 ("Handler_savepoint", "savepoint incremental 1 1"),
95 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
96 ("Handler_update", "update incremental 1 1"),
97 ("Handler_write", "write incremental 1 1")
100 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
102 ("Table_locks_immediate", "immediate incremental 1 1"),
103 ("Table_locks_waited", "waited incremental -1 1")
106 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
108 ("Select_full_join", "full_join incremental 1 1"),
109 ("Select_full_range_join", "full_range_join incremental 1 1"),
110 ("Select_range", "range incremental 1 1"),
111 ("Select_range_check", "range_check incremental 1 1"),
112 ("Select_scan", "scan incremental 1 1"),
115 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
117 ("Sort_merge_passes", "merge_passes incremental 1 1"),
118 ("Sort_range", "range incremental 1 1"),
119 ("Sort_scan", "scan incremental 1 1"),
122 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
124 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
125 ("Created_tmp_files", "files incremental 1 1"),
126 ("Created_tmp_tables", "tables incremental 1 1"),
129 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
131 ("Connections", "all incremental 1 1"),
132 ("Aborted_connects", "aborted incremental 1 1"),
135 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
137 ("Binlog_cache_disk_use", "disk incremental 1 1"),
138 ("Binlog_cache_use", "all incremental 1 1"),
141 "'' 'mysql Threads' 'threads' threads mysql.threads line",
143 ("Threads_connected", "connected absolute 1 1"),
144 ("Threads_created", "created incremental 1 1"),
145 ("Threads_cached", "cached absolute -1 1"),
146 ("Threads_running", "running absolute 1 1"),
148 'thread_cache_misses' : (
149 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
151 ("Thread_cache_misses", "misses misses absolute 1 100"),
154 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
156 ("Innodb_data_read", "read incremental 1 1024"),
157 ("Innodb_data_written", "write incremental -1 1024"),
160 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
162 ("Innodb_data_reads", "reads incremental 1 1"),
163 ("Innodb_data_writes", "writes incremental -1 1"),
164 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
166 'innodb_io_pending_ops' : (
167 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
169 ("Innodb_data_pending_reads", "reads absolute 1 1"),
170 ("Innodb_data_pending_writes", "writes absolute -1 1"),
171 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
174 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
176 ("Innodb_log_waits", "waits incremental 1 1"),
177 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
178 ("Innodb_log_writes", "incremental -1 1"),
181 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
183 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
184 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
185 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
187 'innodb_os_log_io' : (
188 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
190 ("Innodb_os_log_written", "write incremental -1 1024"),
192 'innodb_cur_row_lock' : (
193 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
195 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
198 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
200 ("Innodb_rows_inserted", "read incremental 1 1"),
201 ("Innodb_rows_read", "deleted incremental -1 1"),
202 ("Innodb_rows_updated", "inserted incremental 1 1"),
203 ("Innodb_rows_deleted", "updated incremental -1 1"),
205 'innodb_buffer_pool_pages' : (
206 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
208 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
209 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
210 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
211 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
212 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
213 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
215 'innodb_buffer_pool_bytes' : (
216 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
218 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
219 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
221 'innodb_buffer_pool_read_ahead' : (
222 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
224 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
225 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
226 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
228 'innodb_buffer_pool_reqs' : (
229 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
231 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
232 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
234 'innodb_buffer_pool_ops' : (
235 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
237 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
238 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
241 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
243 ("Qcache_hits", "hits incremental 1 1"),
244 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
245 ("Qcache_inserts", "inserts incremental 1 1"),
246 ("Qcache_not_cached", "'not cached' incremental -1 1"),
249 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
251 ("Qcache_queries_in_cache", "queries absolute 1 1"),
254 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
256 ("Qcache_free_memory", "free absolute 1"),
258 'qcache_memblocks' : (
259 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
261 ("Qcache_free_blocks", "free absolute 1"),
262 ("Qcache_total_blocks", "total absolute 1 1"),
265 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
267 ("Key_blocks_unused", "unused absolute 1 1"),
268 ("Key_blocks_used", "used absolute -1 1"),
269 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
272 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
274 ("Key_read_requests", "reads incremental 1 1"),
275 ("Key_write_requests", "writes incremental -1 1"),
278 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
280 ("Key_reads", "reads incremental 1 1"),
281 ("Key_writes", "writes incremental -1 1"),
284 "'' 'mysql Open Files' 'files' files mysql.files line",
286 ("Open_files", "files absolute 1 1"),
289 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
291 ("Opened_files", "files incremental 1 1"),
293 'binlog_stmt_cache' : (
294 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
296 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
297 ("Binlog_stmt_cache_use", "all incremental 1 1"),
299 'connection_errors' : (
300 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
302 ("Connection_errors_accept", "accept incremental 1 1"),
303 ("Connection_errors_internal", "internal incremental 1 1"),
304 ("Connection_errors_max_connections", "max incremental 1 1"),
305 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
306 ("Connection_errors_select", "select incremental 1 1"),
307 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
314 def get_data(config):
317 cnx = connections[config['name']]
318 except KeyError as e:
319 stderr.write(NAME + ": reconnecting\n")
320 cnx = MySQLdb.connect(user=config['user'],
321 passwd=config['password'],
322 read_default_file=config['my.cnf'],
323 unix_socket=config['socket'],
326 connect_timeout=int(update_every))
327 connections[config['name']] = cnx
330 with cnx.cursor() as cursor:
331 cursor.execute(QUERY)
332 raw_data = cursor.fetchall()
333 except Exception as e:
334 stderr.write(NAME + ": cannot execute query." + str(e) + "\n")
336 del connections[config['name']]
339 return dict(raw_data)
343 # TODO what are the default credentials
345 if type(config) is str:
346 from json import loads
347 cfg = loads(config.replace("'",'"').replace('\n',' '))
349 for i in range(len(config)):
350 if 'name' not in config[i]:
351 config[i]['name'] = "srv_"+str(i)
352 if 'user' not in config[i]:
353 config[i]['user'] = 'root'
354 if 'password' not in config[i]:
355 config[i]['password'] = ''
356 if 'my.cnf' in config[i]:
357 config[i]['socket'] = ''
358 config[i]['host'] = ''
359 config[i]['port'] = 0
360 elif 'socket' in config[i]:
361 config[i]['my.cnf'] = ''
362 config[i]['host'] = ''
363 config[i]['port'] = 0
364 elif 'host' in config[i]:
365 config[i]['my.cnf'] = ''
366 config[i]['socket'] = ''
367 if 'port' in config[i]:
368 config[i]['port'] = int(config[i]['port'])
370 config[i]['port'] = 3306
374 cnx = MySQLdb.connect(user=srv['user'],
375 passwd=srv['password'],
376 read_default_file=srv['my.cnf'],
377 unix_socket=srv['socket'],
380 connect_timeout=int(update_every))
382 except Exception as e:
383 stderr.write(NAME + " has problem connecting to server: "+str(e).replace("\n"," ")+"\n")
392 global config, mysql_def
395 for line in CHARTS[name][1]:
396 mysql_def[name].append(line[0])
402 header = "CHART mysql_" + \
403 str(srv['name']) + "." + \
405 CHARTS[name][0] + " " + \
406 str(priority + idx) + " " + \
409 # check if server has this datapoint
410 for line in CHARTS[name][1]:
412 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
423 def update(interval):
429 # TODO notify user about problems with server
432 data['Thread cache misses'] = int( int(data['Threads_created']) * 10000 / int(data['Connections']))
435 for chart, dimensions in mysql_def.items():
436 header = "BEGIN mysql_" + str(srv['name']) + "." + chart + " " + str(interval) + '\n'
440 lines += "SET " + d + " = " + data[d] + '\n'
444 print(header + lines + "END")