1 # Description: MySQL netdata python.d plugin
2 # Author: Pawel Krupa (paulfantom)
5 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 MySQLdb or PyMySQL module to use mysql.chart.py plugin\n")
21 from base import BaseService
23 # default configuration (overridden by python.d.plugin)
28 'socket' : '/var/run/mysqld/mysqld.sock',
35 # default module values (can be overridden per job in `config`)
40 # query executed on MySQL server
41 QUERY = "SHOW GLOBAL STATUS"
43 # charts order (can be overridden if you want less charts, or different order)
54 'thread_cache_misses',
57 'innodb_io_pending_ops',
61 'innodb_cur_row_lock',
63 'innodb_buffer_pool_pages',
64 'innodb_buffer_pool_bytes',
65 'innodb_buffer_pool_read_ahead',
66 'innodb_buffer_pool_reqs',
67 'innodb_buffer_pool_ops',
80 # charts definitions in format:
82 # 'chart_name_in_netdata': (
83 # "parameters defining chart (passed to CHART statement)",
84 # [ # dimensions (lines) definitions
85 # ("dimension_name", "dimension parameters (passed to DIMENSION statement)")
91 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
93 ("Bytes_received", "in incremental 8 1024"),
94 ("Bytes_sent", "out incremental -8 1024")
97 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
99 ("Queries", "queries incremental 1 1"),
100 ("Questions", "questions incremental 1 1"),
101 ("Slow_queries", "slow_queries incremental -1 1")
104 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
106 ("Handler_commit", "commit incremental 1 1"),
107 ("Handler_delete", "delete incremental 1 1"),
108 ("Handler_prepare", "prepare incremental 1 1"),
109 ("Handler_read_first", "read_first incremental 1 1"),
110 ("Handler_read_key", "read_key incremental 1 1"),
111 ("Handler_read_next", "read_next incremental 1 1"),
112 ("Handler_read_prev", "read_prev incremental 1 1"),
113 ("Handler_read_rnd", "read_rnd incremental 1 1"),
114 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
115 ("Handler_rollback", "rollback incremental 1 1"),
116 ("Handler_savepoint", "savepoint incremental 1 1"),
117 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
118 ("Handler_update", "update incremental 1 1"),
119 ("Handler_write", "write incremental 1 1")
122 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
124 ("Table_locks_immediate", "immediate incremental 1 1"),
125 ("Table_locks_waited", "waited incremental -1 1")
128 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
130 ("Select_full_join", "full_join incremental 1 1"),
131 ("Select_full_range_join", "full_range_join incremental 1 1"),
132 ("Select_range", "range incremental 1 1"),
133 ("Select_range_check", "range_check incremental 1 1"),
134 ("Select_scan", "scan incremental 1 1"),
137 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
139 ("Sort_merge_passes", "merge_passes incremental 1 1"),
140 ("Sort_range", "range incremental 1 1"),
141 ("Sort_scan", "scan incremental 1 1"),
144 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
146 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
147 ("Created_tmp_files", "files incremental 1 1"),
148 ("Created_tmp_tables", "tables incremental 1 1"),
151 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
153 ("Connections", "all incremental 1 1"),
154 ("Aborted_connects", "aborted incremental 1 1"),
157 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
159 ("Binlog_cache_disk_use", "disk incremental 1 1"),
160 ("Binlog_cache_use", "all incremental 1 1"),
163 "'' 'mysql Threads' 'threads' threads mysql.threads line",
165 ("Threads_connected", "connected absolute 1 1"),
166 ("Threads_created", "created incremental 1 1"),
167 ("Threads_cached", "cached absolute -1 1"),
168 ("Threads_running", "running absolute 1 1"),
170 'thread_cache_misses' : (
171 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
173 ("Thread_cache_misses", "misses misses absolute 1 100"),
176 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
178 ("Innodb_data_read", "read incremental 1 1024"),
179 ("Innodb_data_written", "write incremental -1 1024"),
182 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
184 ("Innodb_data_reads", "reads incremental 1 1"),
185 ("Innodb_data_writes", "writes incremental -1 1"),
186 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
188 'innodb_io_pending_ops' : (
189 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
191 ("Innodb_data_pending_reads", "reads absolute 1 1"),
192 ("Innodb_data_pending_writes", "writes absolute -1 1"),
193 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
196 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
198 ("Innodb_log_waits", "waits incremental 1 1"),
199 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
200 ("Innodb_log_writes", "incremental -1 1"),
203 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
205 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
206 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
207 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
209 'innodb_os_log_io' : (
210 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
212 ("Innodb_os_log_written", "write incremental -1 1024"),
214 'innodb_cur_row_lock' : (
215 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
217 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
220 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
222 ("Innodb_rows_inserted", "read incremental 1 1"),
223 ("Innodb_rows_read", "deleted incremental -1 1"),
224 ("Innodb_rows_updated", "inserted incremental 1 1"),
225 ("Innodb_rows_deleted", "updated incremental -1 1"),
227 'innodb_buffer_pool_pages' : (
228 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
230 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
231 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
232 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
233 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
234 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
235 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
237 'innodb_buffer_pool_bytes' : (
238 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
240 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
241 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
243 'innodb_buffer_pool_read_ahead' : (
244 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
246 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
247 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
248 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
250 'innodb_buffer_pool_reqs' : (
251 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
253 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
254 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
256 'innodb_buffer_pool_ops' : (
257 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
259 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
260 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
263 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
265 ("Qcache_hits", "hits incremental 1 1"),
266 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
267 ("Qcache_inserts", "inserts incremental 1 1"),
268 ("Qcache_not_cached", "'not cached' incremental -1 1"),
271 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
273 ("Qcache_queries_in_cache", "queries absolute 1 1"),
276 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
278 ("Qcache_free_memory", "free absolute 1"),
280 'qcache_memblocks' : (
281 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
283 ("Qcache_free_blocks", "free absolute 1"),
284 ("Qcache_total_blocks", "total absolute 1 1"),
287 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
289 ("Key_blocks_unused", "unused absolute 1 1"),
290 ("Key_blocks_used", "used absolute -1 1"),
291 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
294 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
296 ("Key_read_requests", "reads incremental 1 1"),
297 ("Key_write_requests", "writes incremental -1 1"),
300 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
302 ("Key_reads", "reads incremental 1 1"),
303 ("Key_writes", "writes incremental -1 1"),
306 "'' 'mysql Open Files' 'files' files mysql.files line",
308 ("Open_files", "files absolute 1 1"),
311 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
313 ("Opened_files", "files incremental 1 1"),
315 'binlog_stmt_cache' : (
316 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
318 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
319 ("Binlog_stmt_cache_use", "all incremental 1 1"),
321 'connection_errors' : (
322 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
324 ("Connection_errors_accept", "accept incremental 1 1"),
325 ("Connection_errors_internal", "internal incremental 1 1"),
326 ("Connection_errors_max_connections", "max incremental 1 1"),
327 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
328 ("Connection_errors_select", "select incremental 1 1"),
329 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
334 class Service(BaseService):
335 def __init__(self,configuration=None,name=None):
336 super(self.__class__, self).__init__(configuration=configuration)
338 self.configuration = self._parse_config(configuration)
339 self.connection = None
342 def _parse_config(self,configuration):
343 # parse configuration to collect data from mysql server
344 if self.name is None:
346 if 'user' not in configuration:
347 configuration['user'] = 'root'
348 if 'password' not in configuration:
349 configuration['password'] = ''
350 if 'my.cnf' in configuration:
351 configuration['socket'] = ''
352 configuration['host'] = ''
353 configuration['port'] = 0
354 elif 'socket' in configuration:
355 configuration['my.cnf'] = ''
356 configuration['host'] = ''
357 configuration['port'] = 0
358 elif 'host' in configuration:
359 configuration['my.cnf'] = ''
360 configuration['socket'] = ''
361 if 'port' in configuration:
362 configuration['port'] = int(configuration['port'])
364 configuration['port'] = 3306
370 self.connection = MySQLdb.connect(user=self.configuration['user'],
371 passwd=self.configuration['password'],
372 read_default_file=self.configuration['my.cnf'],
373 unix_socket=self.configuration['socket'],
374 host=self.configuration['host'],
375 port=self.configuration['port'],
376 connect_timeout=self.configuration['update_every'])
377 except Exception as e:
378 self.error(NAME + " has problem connecting to server:", e)
379 raise RuntimeError # stop creating module, need to catch it in supervisor
382 if self.connection is None:
385 with self.connection.cursor() as cursor:
386 cursor.execute(QUERY)
387 raw_data = cursor.fetchall()
388 except Exception as e:
389 self.error(NAME + ": cannot execute query.", e)
390 self.connection.close()
391 self.connection = None
394 return dict(raw_data)
398 self.connection = self._connect()
401 self.connection = None
407 for line in CHARTS[name][1]:
408 self.defs[name].append(line[0])
411 data = self._get_data()
413 header = "CHART mysql_" + \
414 str(self.name) + "." + \
416 CHARTS[name][0] + " " + \
417 str(self.priority + idx) + " " + \
418 str(self.update_every)
420 # check if server has this data point
421 for line in CHARTS[name][1]:
423 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
433 def update(self, interval):
434 data = self._get_data()
438 data['Thread cache misses'] = int(int(data['Threads_created']) * 10000 / int(data['Connections']))
441 for chart, dimensions in self.defs.items():
442 header = "BEGIN mysql_" + str(self.name) + "." + chart + " " + str(interval) + '\n'
446 lines += "SET " + d + " = " + data[d] + '\n'
450 print(header + lines + "END")