1 # -*- coding: utf-8 -*-
2 # Description: MySQL netdata python.d plugin
3 # Author: Pawel Krupa (paulfantom)
8 NAME = os.path.basename(__file__).replace(".chart.py", "")
10 # import 3rd party library to handle MySQL communication
14 # https://github.com/PyMySQL/mysqlclient-python
15 sys.stderr.write(NAME + ": using MySQLdb\n")
18 import pymysql as MySQLdb
20 # https://github.com/PyMySQL/PyMySQL
21 sys.stderr.write(NAME + ": using pymysql\n")
23 sys.stderr.write(NAME + ": You need to install MySQLdb or PyMySQL module to use mysql.chart.py plugin\n")
26 from base import BaseService
28 # default module values (can be overridden per job in `config`)
33 # default configuration (overridden by python.d.plugin)
38 'socket': '/var/run/mysqld/mysqld.sock',
39 'update_every': update_every,
45 # query executed on MySQL server
46 QUERY = "SHOW GLOBAL STATUS"
48 # charts order (can be overridden if you want less charts, or different order)
59 'thread_cache_misses',
62 'innodb_io_pending_ops',
66 'innodb_cur_row_lock',
68 'innodb_buffer_pool_pages',
69 'innodb_buffer_pool_bytes',
70 'innodb_buffer_pool_read_ahead',
71 'innodb_buffer_pool_reqs',
72 'innodb_buffer_pool_ops',
85 # charts definitions in format:
87 # 'chart_name_in_netdata': (
88 # "parameters defining chart (passed to CHART statement)",
89 # [ # dimensions (lines) definitions
90 # ("dimension_name", "dimension parameters (passed to DIMENSION statement)")
96 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
98 ("Bytes_received", "in incremental 8 1024"),
99 ("Bytes_sent", "out incremental -8 1024")
102 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
104 ("Queries", "queries incremental 1 1"),
105 ("Questions", "questions incremental 1 1"),
106 ("Slow_queries", "slow_queries incremental -1 1")
109 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
111 ("Handler_commit", "commit incremental 1 1"),
112 ("Handler_delete", "delete incremental 1 1"),
113 ("Handler_prepare", "prepare incremental 1 1"),
114 ("Handler_read_first", "read_first incremental 1 1"),
115 ("Handler_read_key", "read_key incremental 1 1"),
116 ("Handler_read_next", "read_next incremental 1 1"),
117 ("Handler_read_prev", "read_prev incremental 1 1"),
118 ("Handler_read_rnd", "read_rnd incremental 1 1"),
119 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
120 ("Handler_rollback", "rollback incremental 1 1"),
121 ("Handler_savepoint", "savepoint incremental 1 1"),
122 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
123 ("Handler_update", "update incremental 1 1"),
124 ("Handler_write", "write incremental 1 1")
127 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
129 ("Table_locks_immediate", "immediate incremental 1 1"),
130 ("Table_locks_waited", "waited incremental -1 1")
133 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
135 ("Select_full_join", "full_join incremental 1 1"),
136 ("Select_full_range_join", "full_range_join incremental 1 1"),
137 ("Select_range", "range incremental 1 1"),
138 ("Select_range_check", "range_check incremental 1 1"),
139 ("Select_scan", "scan incremental 1 1"),
142 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
144 ("Sort_merge_passes", "merge_passes incremental 1 1"),
145 ("Sort_range", "range incremental 1 1"),
146 ("Sort_scan", "scan incremental 1 1"),
149 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
151 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
152 ("Created_tmp_files", "files incremental 1 1"),
153 ("Created_tmp_tables", "tables incremental 1 1"),
156 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
158 ("Connections", "all incremental 1 1"),
159 ("Aborted_connects", "aborted incremental 1 1"),
162 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
164 ("Binlog_cache_disk_use", "disk incremental 1 1"),
165 ("Binlog_cache_use", "all incremental 1 1"),
168 "'' 'mysql Threads' 'threads' threads mysql.threads line",
170 ("Threads_connected", "connected absolute 1 1"),
171 ("Threads_created", "created incremental 1 1"),
172 ("Threads_cached", "cached absolute -1 1"),
173 ("Threads_running", "running absolute 1 1"),
175 'thread_cache_misses': (
176 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
178 ("Thread_cache_misses", "misses misses absolute 1 100"),
181 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
183 ("Innodb_data_read", "read incremental 1 1024"),
184 ("Innodb_data_written", "write incremental -1 1024"),
187 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
189 ("Innodb_data_reads", "reads incremental 1 1"),
190 ("Innodb_data_writes", "writes incremental -1 1"),
191 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
193 'innodb_io_pending_ops': (
194 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
196 ("Innodb_data_pending_reads", "reads absolute 1 1"),
197 ("Innodb_data_pending_writes", "writes absolute -1 1"),
198 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
201 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
203 ("Innodb_log_waits", "waits incremental 1 1"),
204 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
205 ("Innodb_log_writes", "incremental -1 1"),
208 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
210 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
211 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
212 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
214 'innodb_os_log_io': (
215 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
217 ("Innodb_os_log_written", "write incremental -1 1024"),
219 'innodb_cur_row_lock': (
220 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
222 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
225 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
227 ("Innodb_rows_inserted", "read incremental 1 1"),
228 ("Innodb_rows_read", "deleted incremental -1 1"),
229 ("Innodb_rows_updated", "inserted incremental 1 1"),
230 ("Innodb_rows_deleted", "updated incremental -1 1"),
232 'innodb_buffer_pool_pages': (
233 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
235 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
236 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
237 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
238 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
239 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
240 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
242 'innodb_buffer_pool_bytes': (
243 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
245 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
246 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
248 'innodb_buffer_pool_read_ahead': (
249 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
251 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
252 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
253 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
255 'innodb_buffer_pool_reqs': (
256 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
258 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
259 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
261 'innodb_buffer_pool_ops': (
262 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
264 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
265 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
268 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
270 ("Qcache_hits", "hits incremental 1 1"),
271 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
272 ("Qcache_inserts", "inserts incremental 1 1"),
273 ("Qcache_not_cached", "'not cached' incremental -1 1"),
276 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
278 ("Qcache_queries_in_cache", "queries absolute 1 1"),
281 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
283 ("Qcache_free_memory", "free absolute 1"),
285 'qcache_memblocks': (
286 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
288 ("Qcache_free_blocks", "free absolute 1"),
289 ("Qcache_total_blocks", "total absolute 1 1"),
292 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
294 ("Key_blocks_unused", "unused absolute 1 1"),
295 ("Key_blocks_used", "used absolute -1 1"),
296 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
299 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
301 ("Key_read_requests", "reads incremental 1 1"),
302 ("Key_write_requests", "writes incremental -1 1"),
305 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
307 ("Key_reads", "reads incremental 1 1"),
308 ("Key_writes", "writes incremental -1 1"),
311 "'' 'mysql Open Files' 'files' files mysql.files line",
313 ("Open_files", "files absolute 1 1"),
316 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
318 ("Opened_files", "files incremental 1 1"),
320 'binlog_stmt_cache': (
321 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
323 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
324 ("Binlog_stmt_cache_use", "all incremental 1 1"),
326 'connection_errors': (
327 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
329 ("Connection_errors_accept", "accept incremental 1 1"),
330 ("Connection_errors_internal", "internal incremental 1 1"),
331 ("Connection_errors_max_connections", "max incremental 1 1"),
332 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
333 ("Connection_errors_select", "select incremental 1 1"),
334 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
339 class Service(BaseService):
340 def __init__(self, configuration=None, name=None):
341 super(self.__class__, self).__init__(configuration=configuration, name=name)
342 self.configuration = self._parse_config(configuration)
343 self.connection = None
346 def _parse_config(self, configuration):
348 Parse configuration to collect data from MySQL server
349 :param configuration: dict
352 if self.name is None:
354 if 'user' not in configuration:
355 configuration['user'] = 'root'
356 if 'password' not in configuration:
357 configuration['password'] = ''
358 if 'my.cnf' in configuration:
359 configuration['socket'] = ''
360 configuration['host'] = ''
361 configuration['port'] = 0
362 elif 'socket' in configuration:
363 configuration['my.cnf'] = ''
364 configuration['host'] = ''
365 configuration['port'] = 0
366 elif 'host' in configuration:
367 configuration['my.cnf'] = ''
368 configuration['socket'] = ''
369 if 'port' in configuration:
370 configuration['port'] = int(configuration['port'])
372 configuration['port'] = 3306
378 Try to connect to MySQL server
381 self.connection = MySQLdb.connect(user=self.configuration['user'],
382 passwd=self.configuration['password'],
383 read_default_file=self.configuration['my.cnf'],
384 unix_socket=self.configuration['socket'],
385 host=self.configuration['host'],
386 port=self.configuration['port'],
387 connect_timeout=self.update_every)
388 except Exception as e:
389 self.error(NAME + " has problem connecting to server:", e)
394 Get raw data from MySQL server
397 if self.connection is None:
403 cursor = self.connection.cursor()
404 cursor.execute(QUERY)
405 raw_data = cursor.fetchall()
406 except Exception as e:
407 self.error(NAME + ": cannot execute query.", e)
408 self.connection.close()
409 self.connection = None
412 return dict(raw_data)
416 Check if service is able to connect to server
420 self.connection = self._connect()
423 self.connection = None
433 for line in CHARTS[name][1]:
434 self.defs[name].append(line[0])
437 data = self._get_data()
441 header = "CHART mysql_" + \
442 str(self.name) + "." + \
444 CHARTS[name][0] + " " + \
445 str(self.priority + idx) + " " + \
446 str(self.update_every)
448 # check if server has this data point
449 for line in CHARTS[name][1]:
451 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
461 def update(self, interval):
463 Update data on graphs
467 data = self._get_data()
471 data['Thread cache misses'] = int(int(data['Threads_created']) * 10000 / int(data['Connections']))
474 for chart, dimensions in self.defs.items():
475 header = "BEGIN mysql_" + str(self.name) + "." + chart + " " + str(interval) + '\n'
479 lines += "SET " + d + " = " + data[d] + '\n'
483 print(header + lines + "END")