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
31 'socket' : '/var/run/mysqld/mysqld.sock',
37 # query executed on MySQL server
38 QUERY = "SHOW GLOBAL STATUS"
40 # charts order (can be overriden if you want less charts, or different order)
51 'thread_cache_misses',
54 'innodb_io_pending_ops',
58 'innodb_cur_row_lock',
60 'innodb_buffer_pool_pages',
61 'innodb_buffer_pool_bytes',
62 'innodb_buffer_pool_read_ahead',
63 'innodb_buffer_pool_reqs',
64 'innodb_buffer_pool_ops',
77 # charts definitions in format:
79 # 'chart_name_in_netdata': (
80 # "parameters defining chart (passed to CHART statement)",
81 # [ # dimensions (lines) definitions
82 # ("dimension_name", "dimension parameters (passed to DIMENSION statement)", "additional parameter (optional)")
88 "'' 'mysql Bandwidth' 'kilobits/s' bandwidth mysql.net area",
90 ("Bytes_received", "in incremental 8 1024"),
91 ("Bytes_sent", "out incremental -8 1024")
94 "'' 'mysql Queries' 'queries/s' queries mysql.queries line",
96 ("Queries", "queries incremental 1 1"),
97 ("Questions", "questions incremental 1 1"),
98 ("Slow_queries", "slow_queries incremental -1 1")
101 "'' 'mysql Handlers' 'handlers/s' handlers mysql.handlers line",
103 ("Handler_commit", "commit incremental 1 1"),
104 ("Handler_delete", "delete incremental 1 1"),
105 ("Handler_prepare", "prepare incremental 1 1"),
106 ("Handler_read_first", "read_first incremental 1 1"),
107 ("Handler_read_key", "read_key incremental 1 1"),
108 ("Handler_read_next", "read_next incremental 1 1"),
109 ("Handler_read_prev", "read_prev incremental 1 1"),
110 ("Handler_read_rnd", "read_rnd incremental 1 1"),
111 ("Handler_read_rnd_next", "read_rnd_next incremental 1 1"),
112 ("Handler_rollback", "rollback incremental 1 1"),
113 ("Handler_savepoint", "savepoint incremental 1 1"),
114 ("Handler_savepoint_rollback", "savepoint_rollback incremental 1 1"),
115 ("Handler_update", "update incremental 1 1"),
116 ("Handler_write", "write incremental 1 1")
119 "'' 'mysql Tables Locks' 'locks/s' locks mysql.table_locks line",
121 ("Table_locks_immediate", "immediate incremental 1 1"),
122 ("Table_locks_waited", "waited incremental -1 1")
125 "'' 'mysql Select Join Issues' 'joins/s' issues mysql.join_issues line",
127 ("Select_full_join", "full_join incremental 1 1"),
128 ("Select_full_range_join", "full_range_join incremental 1 1"),
129 ("Select_range", "range incremental 1 1"),
130 ("Select_range_check", "range_check incremental 1 1"),
131 ("Select_scan", "scan incremental 1 1"),
134 "'' 'mysql Sort Issues' 'issues/s' issues mysql.sort.issues line",
136 ("Sort_merge_passes", "merge_passes incremental 1 1"),
137 ("Sort_range", "range incremental 1 1"),
138 ("Sort_scan", "scan incremental 1 1"),
141 "'' 'mysql Tmp Operations' 'counter' temporaries mysql.tmp line",
143 ("Created_tmp_disk_tables", "disk_tables incremental 1 1"),
144 ("Created_tmp_files", "files incremental 1 1"),
145 ("Created_tmp_tables", "tables incremental 1 1"),
148 "'' 'mysql Connections' 'connections/s' connections mysql.connections line",
150 ("Connections", "all incremental 1 1"),
151 ("Aborted_connects", "aborted incremental 1 1"),
154 "'' 'mysql Binlog Cache' 'transactions/s' binlog mysql.binlog_cache line",
156 ("Binlog_cache_disk_use", "disk incremental 1 1"),
157 ("Binlog_cache_use", "all incremental 1 1"),
160 "'' 'mysql Threads' 'threads' threads mysql.threads line",
162 ("Threads_connected", "connected absolute 1 1"),
163 ("Threads_created", "created incremental 1 1"),
164 ("Threads_cached", "cached absolute -1 1"),
165 ("Threads_running", "running absolute 1 1"),
167 'thread_cache_misses' : (
168 "'' 'mysql Threads Cache Misses' 'misses' threads mysql.thread_cache_misses area",
170 ("Thread_cache_misses", "misses misses absolute 1 100"),
173 "'' 'mysql InnoDB I/O Bandwidth' 'kilobytes/s' innodb mysql.innodb_io area",
175 ("Innodb_data_read", "read incremental 1 1024"),
176 ("Innodb_data_written", "write incremental -1 1024"),
179 "'' 'mysql InnoDB I/O Operations' 'operations/s' innodb mysql.innodb_io_ops line",
181 ("Innodb_data_reads", "reads incremental 1 1"),
182 ("Innodb_data_writes", "writes incremental -1 1"),
183 ("Innodb_data_fsyncs", "fsyncs incremental 1 1"),
185 'innodb_io_pending_ops' : (
186 "'' 'mysql InnoDB Pending I/O Operations' 'operations' innodb mysql.innodb_io_pending_ops line",
188 ("Innodb_data_pending_reads", "reads absolute 1 1"),
189 ("Innodb_data_pending_writes", "writes absolute -1 1"),
190 ("Innodb_data_pending_fsyncs", "fsyncs absolute 1 1"),
193 "'' 'mysql InnoDB Log Operations' 'operations/s' innodb mysql.innodb_log line",
195 ("Innodb_log_waits", "waits incremental 1 1"),
196 ("Innodb_log_write_requests", "write_requests incremental -1 1"),
197 ("Innodb_log_writes", "incremental -1 1"),
200 "'' 'mysql InnoDB OS Log Operations' 'operations' innodb mysql.innodb_os_log line",
202 ("Innodb_os_log_fsyncs", "fsyncs incremental 1 1"),
203 ("Innodb_os_log_pending_fsyncs", "pending_fsyncs absolute 1 1"),
204 ("Innodb_os_log_pending_writes", "pending_writes absolute -1 1"),
206 'innodb_os_log_io' : (
207 "'' 'mysql InnoDB OS Log Bandwidth' 'kilobytes/s' innodb mysql.innodb_os_log_io area",
209 ("Innodb_os_log_written", "write incremental -1 1024"),
211 'innodb_cur_row_lock' : (
212 "'' 'mysql InnoDB Current Row Locks' 'operations' innodb mysql.innodb_cur_row_lock area",
214 ("Innodb_row_lock_current_waits", "current_waits absolute 1 1"),
217 "'' 'mysql InnoDB Row Operations' 'operations/s' innodb mysql.innodb_rows area",
219 ("Innodb_rows_inserted", "read incremental 1 1"),
220 ("Innodb_rows_read", "deleted incremental -1 1"),
221 ("Innodb_rows_updated", "inserted incremental 1 1"),
222 ("Innodb_rows_deleted", "updated incremental -1 1"),
224 'innodb_buffer_pool_pages' : (
225 "'' 'mysql InnoDB Buffer Pool Pages' 'pages' innodb mysql.innodb_buffer_pool_pages line",
227 ("Innodb_buffer_pool_pages_data", "data absolute 1 1"),
228 ("Innodb_buffer_pool_pages_dirty", "dirty absolute -1 1"),
229 ("Innodb_buffer_pool_pages_free", "free absolute 1 1"),
230 ("Innodb_buffer_pool_pages_flushed", "flushed incremental -1 1"),
231 ("Innodb_buffer_pool_pages_misc", "misc absolute -1 1"),
232 ("Innodb_buffer_pool_pages_total", "total absolute 1 1"),
234 'innodb_buffer_pool_bytes' : (
235 "'' 'mysql InnoDB Buffer Pool Bytes' 'MB' innodb mysql.innodb_buffer_pool_bytes area",
237 ("Innodb_buffer_pool_bytes_data", "data absolute 1"),
238 ("Innodb_buffer_pool_bytes_dirty", "dirty absolute -1"),
240 'innodb_buffer_pool_read_ahead' : (
241 "'' 'mysql InnoDB Buffer Pool Read Ahead' 'operations/s' innodb mysql.innodb_buffer_pool_read_ahead area",
243 ("Innodb_buffer_pool_read_ahead", "all incremental 1 1"),
244 ("Innodb_buffer_pool_read_ahead_evicted", "evicted incremental -1 1"),
245 ("Innodb_buffer_pool_read_ahead_rnd", "random incremental 1 1"),
247 'innodb_buffer_pool_reqs' : (
248 "'' 'mysql InnoDB Buffer Pool Requests' 'requests/s' innodb mysql.innodb_buffer_pool_reqs area",
250 ("Innodb_buffer_pool_read_requests", "reads incremental 1 1"),
251 ("Innodb_buffer_pool_write_requests", "writes incremental -1 1"),
253 'innodb_buffer_pool_ops' : (
254 "'' 'mysql InnoDB Buffer Pool Operations' 'operations/s' innodb mysql.innodb_buffer_pool_ops area",
256 ("Innodb_buffer_pool_reads", "'disk reads' incremental 1 1"),
257 ("Innodb_buffer_pool_wait_free", "'wait free' incremental -1 1"),
260 "'' 'mysql QCache Operations' 'queries/s' qcache mysql.qcache_ops line",
262 ("Qcache_hits", "hits incremental 1 1"),
263 ("Qcache_lowmem_prunes", "'lowmem prunes' incremental -1 1"),
264 ("Qcache_inserts", "inserts incremental 1 1"),
265 ("Qcache_not_cached", "'not cached' incremental -1 1"),
268 "'' 'mysql QCache Queries in Cache' 'queries' qcache mysql.qcache line",
270 ("Qcache_queries_in_cache", "queries absolute 1 1"),
273 "'' 'mysql QCache Free Memory' 'MB' qcache mysql.qcache_freemem area",
275 ("Qcache_free_memory", "free absolute 1"),
277 'qcache_memblocks' : (
278 "'' 'mysql QCache Memory Blocks' 'blocks' qcache mysql.qcache_memblocks line",
280 ("Qcache_free_blocks", "free absolute 1"),
281 ("Qcache_total_blocks", "total absolute 1 1"),
284 "'' 'mysql MyISAM Key Cache Blocks' 'blocks' myisam mysql.key_blocks line",
286 ("Key_blocks_unused", "unused absolute 1 1"),
287 ("Key_blocks_used", "used absolute -1 1"),
288 ("Key_blocks_not_flushed", "'not flushed' absolute 1 1"),
291 "'' 'mysql MyISAM Key Cache Requests' 'requests/s' myisam mysql.key_requests area",
293 ("Key_read_requests", "reads incremental 1 1"),
294 ("Key_write_requests", "writes incremental -1 1"),
297 "'' 'mysql MyISAM Key Cache Disk Operations' 'operations/s' myisam mysql.key_disk_ops area",
299 ("Key_reads", "reads incremental 1 1"),
300 ("Key_writes", "writes incremental -1 1"),
303 "'' 'mysql Open Files' 'files' files mysql.files line",
305 ("Open_files", "files absolute 1 1"),
308 "'' 'mysql Opened Files Rate' 'files/s' files mysql.files_rate line",
310 ("Opened_files", "files incremental 1 1"),
312 'binlog_stmt_cache' : (
313 "'' 'mysql Binlog Statement Cache' 'statements/s' binlog mysql.binlog_stmt_cache line",
315 ("Binlog_stmt_cache_disk_use", "disk incremental 1 1"),
316 ("Binlog_stmt_cache_use", "all incremental 1 1"),
318 'connection_errors' : (
319 "'' 'mysql Connection Errors' 'connections/s' connections mysql.connection_errors line",
321 ("Connection_errors_accept", "accept incremental 1 1"),
322 ("Connection_errors_internal", "internal incremental 1 1"),
323 ("Connection_errors_max_connections", "max incremental 1 1"),
324 ("Connection_errors_peer_address", "peer_addr incremental 1 1"),
325 ("Connection_errors_select", "select incremental 1 1"),
326 ("Connection_errors_tcpwrap", "tcpwrap incremental 1 1")
331 class Service(BaseService):
332 def __init__(self,configuration=None,update_every=3,priority=90000,retries=2):
333 super().__init__(configuration,update_every,priority,retries)
334 self.configuration = self._parse_config(configuration)
335 self.connection = None
338 def _parse_config(self,configuration):
339 # parse configuration to collect data from mysql server
340 if 'name' not in configuration:
341 configuration['name'] = 'local'
342 if 'user' not in configuration:
343 configuration['user'] = 'root'
344 if 'password' not in configuration:
345 configuration['password'] = ''
346 if 'my.cnf' in configuration:
347 configuration['socket'] = ''
348 configuration['host'] = ''
349 configuration['port'] = 0
350 elif 'socket' in configuration:
351 configuration['my.cnf'] = ''
352 configuration['host'] = ''
353 configuration['port'] = 0
354 elif 'host' in configuration:
355 configuration['my.cnf'] = ''
356 configuration['socket'] = ''
357 if 'port' in configuration:
358 configuration['port'] = int(configuration['port'])
360 configuration['port'] = 3306
366 self.connection = MySQLdb.connect(user=self.configuration['user'],
367 passwd=self.configuration['password'],
368 read_default_file=self.configuration['my.cnf'],
369 unix_socket=self.configuration['socket'],
370 host=self.configuration['host'],
371 port=self.configuration['port'],
372 connect_timeout=self.configuration['update_every'])
373 except Exception as e:
374 self.error(NAME + " has problem connecting to server:", e)
375 raise RuntimeError #stop creating module, need to catch it in supervisor
378 if self.connection is None:
381 with self.connection.cursor() as cursor:
382 cursor.execute(QUERY)
383 raw_data = cursor.fetchall()
384 except Exception as e:
385 self.error(NAME + ": cannot execute query.", e)
386 self.connection.close()
387 self.connection = None
390 return dict(raw_data)
394 self.connection = self._connect()
397 self.connection = None
404 for line in CHARTS[name][1]:
405 self.defs[name].append(line[0])
408 data = self._get_data()
410 header = "CHART mysql_" + \
411 str(self.configuration['name']) + "." + \
413 CHARTS[name][0] + " " + \
414 str(self.priority + idx) + " " + \
415 str(self.update_every)
417 # check if server has this datapoint
418 for line in CHARTS[name][1]:
420 content += "DIMENSION " + line[0] + " " + line[1] + "\n"
430 def update(self,interval):
431 data = self._get_data()
435 data['Thread cache misses'] = int( int(data['Threads_created']) * 10000 / int(data['Connections']))
438 for chart, dimensions in self.defs.items():
439 header = "BEGIN mysql_" + str(self.configuration['name']) + "." + chart + " " + str(interval) + '\n'
443 lines += "SET " + d + " = " + data[d] + '\n'
447 print(header + lines + "END")
452 if __name__ == "__main__":
453 my = Service(config[0])