1 # Description: MySQL netdata python.d plugin
2 # Author: Pawel Krupa (paulfantom)
4 NAME = "mysql.chart.py"
7 sys.path.append("./python_modules") #FIXME it is here for debug only
9 # import 3rd party library to handle MySQL communication
12 # https://github.com/PyMySQL/mysqlclient-python
13 sys.stderr.write(NAME + ": using MySQLdb\n")
16 import pymysql as MySQLdb
17 # https://github.com/PyMySQL/PyMySQL
18 sys.stderr.write(NAME + ": using pymysql\n")
20 sys.stderr.write(NAME + ": You need to install PyMySQL module to use mysql.chart.py plugin\n")
22 from base import BaseService
24 # default configuration (overriden by python.d.plugin)
25 # FIXME change password
30 'socket' : '/var/run/mysqld/mysqld.sock',
37 # default module values (can be overridden per job in `config`)
42 # query executed on MySQL server
43 QUERY = "SHOW GLOBAL STATUS"
45 # charts order (can be overriden if you want less charts, or different order)
56 'thread_cache_misses',
59 'innodb_io_pending_ops',
63 'innodb_cur_row_lock',
65 'innodb_buffer_pool_pages',
66 'innodb_buffer_pool_bytes',
67 'innodb_buffer_pool_read_ahead',
68 'innodb_buffer_pool_reqs',
69 'innodb_buffer_pool_ops',
82 # charts definitions in format:
84 # 'chart_name_in_netdata': (
85 # "parameters defining chart (passed to CHART statement)",
86 # [ # dimensions (lines) definitions
87 # ("dimension_name", "dimension parameters (passed to DIMENSION statement)", "additional parameter (optional)")
93 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
95 ("Bytes_received", "in incremental 8 1024"),
96 ("Bytes_sent", "out incremental -8 1024")
99 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
101 ("Queries", "queries incremental 1 1"),
102 ("Questions", "questions incremental 1 1"),
103 ("Slow_queries", "slow_queries incremental -1 1")
106 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
108 ("Handler_commit", "commit incremental 1 1"),
109 ("Handler_delete", "delete incremental 1 1"),
110 ("Handler_prepare", "prepare incremental 1 1"),
111 ("Handler_read_first", "read_first incremental 1 1"),
112 ("Handler_read_key", "read_key incremental 1 1"),
113 ("Handler_read_next", "read_next incremental 1 1"),
114 ("Handler_read_prev", "read_prev incremental 1 1"),
115 ("Handler_read_rnd", "read_rnd incremental 1 1"),
116 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
117 ("Handler_rollback", "rollback incremental 1 1"),
118 ("Handler_savepoint", "savepoint incremental 1 1"),
119 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
120 ("Handler_update", "update incremental 1 1"),
121 ("Handler_write", "write incremental 1 1")
124 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
126 ("Table_locks_immediate", "immediate incremental 1 1"),
127 ("Table_locks_waited", "waited incremental -1 1")
130 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
132 ("Select_full_join", "full_join incremental 1 1"),
133 ("Select_full_range_join", "full_range_join incremental 1 1"),
134 ("Select_range", "range incremental 1 1"),
135 ("Select_range_check", "range_check incremental 1 1"),
136 ("Select_scan", "scan incremental 1 1"),
139 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
141 ("Sort_merge_passes", "merge_passes incremental 1 1"),
142 ("Sort_range", "range incremental 1 1"),
143 ("Sort_scan", "scan incremental 1 1"),
146 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
148 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
149 ("Created_tmp_files", "files incremental 1 1"),
150 ("Created_tmp_tables", "tables incremental 1 1"),
153 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
155 ("Connections", "all incremental 1 1"),
156 ("Aborted_connects", "aborted incremental 1 1"),
159 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
161 ("Binlog_cache_disk_use", "disk incremental 1 1"),
162 ("Binlog_cache_use", "all incremental 1 1"),
165 "'' 'mysql Threads' 'threads' threads mysql.threads line",
167 ("Threads_connected", "connected absolute 1 1"),
168 ("Threads_created", "created incremental 1 1"),
169 ("Threads_cached", "cached absolute -1 1"),
170 ("Threads_running", "running absolute 1 1"),
172 'thread_cache_misses' : (
173 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
175 ("Thread_cache_misses", "misses misses absolute 1 100"),
178 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
180 ("Innodb_data_read", "read incremental 1 1024"),
181 ("Innodb_data_written", "write incremental -1 1024"),
184 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
186 ("Innodb_data_reads", "reads incremental 1 1"),
187 ("Innodb_data_writes", "writes incremental -1 1"),
188 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
190 'innodb_io_pending_ops' : (
191 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
193 ("Innodb_data_pending_reads", "reads absolute 1 1"),
194 ("Innodb_data_pending_writes", "writes absolute -1 1"),
195 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
198 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
200 ("Innodb_log_waits", "waits incremental 1 1"),
201 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
202 ("Innodb_log_writes", "incremental -1 1"),
205 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
207 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
208 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
209 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
211 'innodb_os_log_io' : (
212 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
214 ("Innodb_os_log_written", "write incremental -1 1024"),
216 'innodb_cur_row_lock' : (
217 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
219 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
222 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
224 ("Innodb_rows_inserted", "read incremental 1 1"),
225 ("Innodb_rows_read", "deleted incremental -1 1"),
226 ("Innodb_rows_updated", "inserted incremental 1 1"),
227 ("Innodb_rows_deleted", "updated incremental -1 1"),
229 'innodb_buffer_pool_pages' : (
230 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
232 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
233 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
234 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
235 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
236 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
237 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
239 'innodb_buffer_pool_bytes' : (
240 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
242 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
243 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
245 'innodb_buffer_pool_read_ahead' : (
246 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
248 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
249 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
250 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
252 'innodb_buffer_pool_reqs' : (
253 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
255 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
256 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
258 'innodb_buffer_pool_ops' : (
259 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
261 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
262 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
265 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
267 ("Qcache_hits", "hits incremental 1 1"),
268 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
269 ("Qcache_inserts", "inserts incremental 1 1"),
270 ("Qcache_not_cached", "'not cached' incremental -1 1"),
273 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
275 ("Qcache_queries_in_cache", "queries absolute 1 1"),
278 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
280 ("Qcache_free_memory", "free absolute 1"),
282 'qcache_memblocks' : (
283 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
285 ("Qcache_free_blocks", "free absolute 1"),
286 ("Qcache_total_blocks", "total absolute 1 1"),
289 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
291 ("Key_blocks_unused", "unused absolute 1 1"),
292 ("Key_blocks_used", "used absolute -1 1"),
293 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
296 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
298 ("Key_read_requests", "reads incremental 1 1"),
299 ("Key_write_requests", "writes incremental -1 1"),
302 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
304 ("Key_reads", "reads incremental 1 1"),
305 ("Key_writes", "writes incremental -1 1"),
308 "'' 'mysql Open Files' 'files' files mysql.files line",
310 ("Open_files", "files absolute 1 1"),
313 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
315 ("Opened_files", "files incremental 1 1"),
317 'binlog_stmt_cache' : (
318 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
320 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
321 ("Binlog_stmt_cache_use", "all incremental 1 1"),
323 'connection_errors' : (
324 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
326 ("Connection_errors_accept", "accept incremental 1 1"),
327 ("Connection_errors_internal", "internal incremental 1 1"),
328 ("Connection_errors_max_connections", "max incremental 1 1"),
329 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
330 ("Connection_errors_select", "select incremental 1 1"),
331 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
336 class Service(BaseService):
337 def __init__(self,configuration=None,name=None):
338 super().__init__(configuration=configuration)
340 self.configuration = self._parse_config(configuration)
341 self.connection = None
344 def _parse_config(self,configuration):
345 # parse configuration to collect data from mysql server
346 if self.name is None:
348 if 'user' not in configuration:
349 configuration['user'] = 'root'
350 if 'password' not in configuration:
351 configuration['password'] = ''
352 if 'my.cnf' in configuration:
353 configuration['socket'] = ''
354 configuration['host'] = ''
355 configuration['port'] = 0
356 elif 'socket' in configuration:
357 configuration['my.cnf'] = ''
358 configuration['host'] = ''
359 configuration['port'] = 0
360 elif 'host' in configuration:
361 configuration['my.cnf'] = ''
362 configuration['socket'] = ''
363 if 'port' in configuration:
364 configuration['port'] = int(configuration['port'])
366 configuration['port'] = 3306
372 self.connection = MySQLdb.connect(user=self.configuration['user'],
373 passwd=self.configuration['password'],
374 read_default_file=self.configuration['my.cnf'],
375 unix_socket=self.configuration['socket'],
376 host=self.configuration['host'],
377 port=self.configuration['port'],
378 connect_timeout=self.configuration['update_every'])
379 except Exception as e:
380 self.error(NAME + " has problem connecting to server:", e)
381 raise RuntimeError #stop creating module, need to catch it in supervisor
384 if self.connection is None:
387 with self.connection.cursor() as cursor:
388 cursor.execute(QUERY)
389 raw_data = cursor.fetchall()
390 except Exception as e:
391 self.error(NAME + ": cannot execute query.", e)
392 self.connection.close()
393 self.connection = None
396 return dict(raw_data)
400 self.connection = self._connect()
403 self.connection = None
409 for line in CHARTS[name][1]:
410 self.defs[name].append(line[0])
413 data = self._get_data()
415 header = "CHART mysql_" + \
416 str(self.name) + "." + \
418 CHARTS[name][0] + " " + \
419 str(self.priority + idx) + " " + \
420 str(self.update_every)
422 # check if server has this datapoint
423 for line in CHARTS[name][1]:
425 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
435 def update(self,interval):
436 data = self._get_data()
440 data['Thread cache misses'] = int( int(data['Threads_created']) * 10000 / int(data['Connections']))
443 for chart, dimensions in self.defs.items():
444 header = "BEGIN mysql_" + str(self.name) + "." + chart + " " + str(interval) + '\n'
448 lines += "SET " + d + " = " + data[d] + '\n'
452 print(header + lines + "END")
457 if __name__ == "__main__":
458 my = Service(config['local'],'loc')