1 # Description: MySQL netdata python.d plugin
2 # Author: Pawel Krupa (paulfantom)
4 NAME = "mysql.chart.py"
7 # import 3rd party library to handle MySQL communication
10 # https://github.com/PyMySQL/mysqlclient-python
11 sys.stderr.write(NAME + ": using MySQLdb\n")
14 import pymysql as MySQLdb
15 # https://github.com/PyMySQL/PyMySQL
16 sys.stderr.write(NAME + ": using pymysql\n")
18 sys.stderr.write(NAME + ": You need to install PyMySQL module to use mysql.chart.py plugin\n")
20 # default configuration (overriden by python.d.plugin)
26 'socket' : '/var/run/mysqld/mysqld.sock',
32 # query executed on MySQL server
33 QUERY = "SHOW GLOBAL STATUS"
35 # charts order (can be overriden if you want less charts, or different order)
46 'thread_cache_misses',
49 'innodb_io_pending_ops',
53 'innodb_cur_row_lock',
55 'innodb_buffer_pool_pages',
56 'innodb_buffer_pool_bytes',
57 'innodb_buffer_pool_read_ahead',
58 'innodb_buffer_pool_reqs',
59 'innodb_buffer_pool_ops',
72 # charts definitions in format:
74 # 'chart_name_in_netdata': (
75 # "parameters defining chart (passed to CHART statement)",
76 # [ # dimensions (lines) definitions
77 # ("dimension_name", "dimension parameters (passed to DIMENSION statement)", "additional parameter (optional)")
83 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
85 ("Bytes_received", "in incremental 8 1024"),
86 ("Bytes_sent", "out incremental -8 1024")
89 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
91 ("Queries", "queries incremental 1 1"),
92 ("Questions", "questions incremental 1 1"),
93 ("Slow_queries", "slow_queries incremental -1 1")
96 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
98 ("Handler_commit", "commit incremental 1 1"),
99 ("Handler_delete", "delete incremental 1 1"),
100 ("Handler_prepare", "prepare incremental 1 1"),
101 ("Handler_read_first", "read_first incremental 1 1"),
102 ("Handler_read_key", "read_key incremental 1 1"),
103 ("Handler_read_next", "read_next incremental 1 1"),
104 ("Handler_read_prev", "read_prev incremental 1 1"),
105 ("Handler_read_rnd", "read_rnd incremental 1 1"),
106 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
107 ("Handler_rollback", "rollback incremental 1 1"),
108 ("Handler_savepoint", "savepoint incremental 1 1"),
109 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
110 ("Handler_update", "update incremental 1 1"),
111 ("Handler_write", "write incremental 1 1")
114 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
116 ("Table_locks_immediate", "immediate incremental 1 1"),
117 ("Table_locks_waited", "waited incremental -1 1")
120 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
122 ("Select_full_join", "full_join incremental 1 1"),
123 ("Select_full_range_join", "full_range_join incremental 1 1"),
124 ("Select_range", "range incremental 1 1"),
125 ("Select_range_check", "range_check incremental 1 1"),
126 ("Select_scan", "scan incremental 1 1"),
129 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
131 ("Sort_merge_passes", "merge_passes incremental 1 1"),
132 ("Sort_range", "range incremental 1 1"),
133 ("Sort_scan", "scan incremental 1 1"),
136 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
138 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
139 ("Created_tmp_files", "files incremental 1 1"),
140 ("Created_tmp_tables", "tables incremental 1 1"),
143 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
145 ("Connections", "all incremental 1 1"),
146 ("Aborted_connects", "aborted incremental 1 1"),
149 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
151 ("Binlog_cache_disk_use", "disk incremental 1 1"),
152 ("Binlog_cache_use", "all incremental 1 1"),
155 "'' 'mysql Threads' 'threads' threads mysql.threads line",
157 ("Threads_connected", "connected absolute 1 1"),
158 ("Threads_created", "created incremental 1 1"),
159 ("Threads_cached", "cached absolute -1 1"),
160 ("Threads_running", "running absolute 1 1"),
162 'thread_cache_misses' : (
163 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
165 ("Thread_cache_misses", "misses misses absolute 1 100"),
168 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
170 ("Innodb_data_read", "read incremental 1 1024"),
171 ("Innodb_data_written", "write incremental -1 1024"),
174 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
176 ("Innodb_data_reads", "reads incremental 1 1"),
177 ("Innodb_data_writes", "writes incremental -1 1"),
178 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
180 'innodb_io_pending_ops' : (
181 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
183 ("Innodb_data_pending_reads", "reads absolute 1 1"),
184 ("Innodb_data_pending_writes", "writes absolute -1 1"),
185 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
188 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
190 ("Innodb_log_waits", "waits incremental 1 1"),
191 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
192 ("Innodb_log_writes", "incremental -1 1"),
195 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
197 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
198 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
199 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
201 'innodb_os_log_io' : (
202 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
204 ("Innodb_os_log_written", "write incremental -1 1024"),
206 'innodb_cur_row_lock' : (
207 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
209 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
212 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
214 ("Innodb_rows_inserted", "read incremental 1 1"),
215 ("Innodb_rows_read", "deleted incremental -1 1"),
216 ("Innodb_rows_updated", "inserted incremental 1 1"),
217 ("Innodb_rows_deleted", "updated incremental -1 1"),
219 'innodb_buffer_pool_pages' : (
220 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
222 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
223 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
224 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
225 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
226 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
227 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
229 'innodb_buffer_pool_bytes' : (
230 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
232 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
233 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
235 'innodb_buffer_pool_read_ahead' : (
236 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
238 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
239 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
240 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
242 'innodb_buffer_pool_reqs' : (
243 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
245 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
246 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
248 'innodb_buffer_pool_ops' : (
249 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
251 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
252 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
255 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
257 ("Qcache_hits", "hits incremental 1 1"),
258 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
259 ("Qcache_inserts", "inserts incremental 1 1"),
260 ("Qcache_not_cached", "'not cached' incremental -1 1"),
263 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
265 ("Qcache_queries_in_cache", "queries absolute 1 1"),
268 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
270 ("Qcache_free_memory", "free absolute 1"),
272 'qcache_memblocks' : (
273 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
275 ("Qcache_free_blocks", "free absolute 1"),
276 ("Qcache_total_blocks", "total absolute 1 1"),
279 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
281 ("Key_blocks_unused", "unused absolute 1 1"),
282 ("Key_blocks_used", "used absolute -1 1"),
283 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
286 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
288 ("Key_read_requests", "reads incremental 1 1"),
289 ("Key_write_requests", "writes incremental -1 1"),
292 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
294 ("Key_reads", "reads incremental 1 1"),
295 ("Key_writes", "writes incremental -1 1"),
298 "'' 'mysql Open Files' 'files' files mysql.files line",
300 ("Open_files", "files absolute 1 1"),
303 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
305 ("Opened_files", "files incremental 1 1"),
307 'binlog_stmt_cache' : (
308 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
310 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
311 ("Binlog_stmt_cache_use", "all incremental 1 1"),
313 'connection_errors' : (
314 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
316 ("Connection_errors_accept", "accept incremental 1 1"),
317 ("Connection_errors_internal", "internal incremental 1 1"),
318 ("Connection_errors_max_connections", "max incremental 1 1"),
319 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
320 ("Connection_errors_select", "select incremental 1 1"),
321 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
326 class BaseService(object):
327 def __init__(self,configuration,update_every,priority,retries):
328 if configuration is None:
330 configuration = config
331 self.error(NAME+": no configuration supplied. using defaults.")
333 self._parse_base_config(configuration,update_every,priority,retries)
335 def _parse_base_config(self,config,update_every,priority,retries):
336 # parse configuration options to run this Service
338 self.update_every = int(config['update_every'])
339 except (KeyError, ValueError):
340 self.update_every = update_every
342 self.priority = int(config['priority'])
343 except (KeyError, ValueError):
344 self.priority = priority
346 self.retries = int(config['retries'])
347 except (KeyError, ValueError):
348 self.retries = retries
349 self.retries_left = self.retries
351 def error(self, msg, exception=""):
353 exception = " " + str(exception).replace("\n"," ")
354 sys.stderr.write(str(msg)+exception+"\n")
358 # TODO notify about not overriden function
359 self.error("Where is your check()?")
363 # TODO notify about not overriden function
364 self.error("Where is your create()?")
368 # TODO notify about not overriden function
369 self.error("Where is your update()?")
373 class Service(BaseService):
374 def __init__(self,configuration=None,update_every=3,priority=90000,retries=2):
375 super().__init__(configuration,update_every,priority,retries)
376 self.configuration = self._parse_config(configuration)
377 self.connection = None
380 def _parse_config(self,configuration):
381 # parse configuration to collect data from mysql server
382 if 'name' not in configuration:
383 configuration['name'] = 'local'
384 if 'user' not in configuration:
385 configuration['user'] = 'root'
386 if 'password' not in configuration:
387 configuration['password'] = ''
388 if 'my.cnf' in configuration:
389 configuration['socket'] = ''
390 configuration['host'] = ''
391 configuration['port'] = 0
392 elif 'socket' in configuration:
393 configuration['my.cnf'] = ''
394 configuration['host'] = ''
395 configuration['port'] = 0
396 elif 'host' in configuration:
397 configuration['my.cnf'] = ''
398 configuration['socket'] = ''
399 if 'port' in configuration:
400 configuration['port'] = int(configuration['port'])
402 configuration['port'] = 3306
408 self.connection = MySQLdb.connect(user=self.configuration['user'],
409 passwd=self.configuration['password'],
410 read_default_file=self.configuration['my.cnf'],
411 unix_socket=self.configuration['socket'],
412 host=self.configuration['host'],
413 port=self.configuration['port'],
414 connect_timeout=self.configuration['update_every'])
415 except Exception as e:
416 self.error(NAME + " has problem connecting to server:", e)
417 raise RuntimeError #stop creating module, need to catch it in supervisor
420 if self.connection is None:
423 with self.connection.cursor() as cursor:
424 cursor.execute(QUERY)
425 raw_data = cursor.fetchall()
426 except Exception as e:
427 self.error(NAME + ": cannot execute query.", e)
428 self.connection.close()
429 self.connection = None
432 return dict(raw_data)
436 self.connection = self._connect()
439 self.connection = None
446 for line in CHARTS[name][1]:
447 self.defs[name].append(line[0])
450 data = self._get_data()
452 header = "CHART mysql_" + \
453 str(self.configuration['name']) + "." + \
455 CHARTS[name][0] + " " + \
456 str(self.priority + idx) + " " + \
457 str(self.update_every)
459 # check if server has this datapoint
460 for line in CHARTS[name][1]:
462 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
472 def update(self,interval):
473 data = self._get_data()
477 data['Thread cache misses'] = int( int(data['Threads_created']) * 10000 / int(data['Connections']))
480 for chart, dimensions in self.defs.items():
481 header = "BEGIN mysql_" + str(self.configuration['name']) + "." + chart + " " + str(interval) + '\n'
485 lines += "SET " + d + " = " + data[d] + '\n'
489 print(header + lines + "END")
493 if __name__ == "__main__":
494 my = Service(config[0])