diff options
Diffstat (limited to '')
| -rw-r--r-- | python.d/mysql.chart.py | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/python.d/mysql.chart.py b/python.d/mysql.chart.py new file mode 100644 index 00000000..7c3931ac --- /dev/null +++ b/python.d/mysql.chart.py @@ -0,0 +1,406 @@ +# -*- coding: utf-8 -*- +# Description: MySQL netdata python.d module +# Author: Pawel Krupa (paulfantom) + +from base import SimpleService +import msg + +# import 3rd party library to handle MySQL communication +try: + import MySQLdb + + # https://github.com/PyMySQL/mysqlclient-python + msg.info("using MySQLdb") +except ImportError: + try: + import pymysql as MySQLdb + + # https://github.com/PyMySQL/PyMySQL + msg.info("using pymysql") + except ImportError: + msg.error("MySQLdb or PyMySQL module is needed to use mysql.chart.py plugin") + raise ImportError + +# default module values (can be overridden per job in `config`) +# update_every = 3 +priority = 90000 +retries = 60 + +# default configuration (overridden by python.d.plugin) +# config = { +# 'local': { +# 'user': 'root', +# 'pass': '', +# 'socket': '/var/run/mysqld/mysqld.sock', +# 'update_every': update_every, +# 'retries': retries, +# 'priority': priority +# } +#} + +# query executed on MySQL server +QUERY = "SHOW GLOBAL STATUS;" + +ORDER = ['net', + 'queries', + 'handlers', + 'table_locks', + 'join_issues', 'sort_issues', + 'tmp', + 'connections', 'connection_errors', + 'binlog_cache', 'binlog_stmt_cache', + 'threads', 'thread_cache_misses', + 'innodb_io', 'innodb_io_ops', 'innodb_io_pending_ops', 'innodb_log', 'innodb_os_log', 'innodb_os_log_io', + 'innodb_cur_row_lock', 'innodb_rows', 'innodb_buffer_pool_pages', 'innodb_buffer_pool_bytes', + 'innodb_buffer_pool_read_ahead', 'innodb_buffer_pool_reqs', 'innodb_buffer_pool_ops', + 'qcache_ops', 'qcache', 'qcache_freemem', 'qcache_memblocks', + 'key_blocks', 'key_requests', 'key_disk_ops', + 'files', 'files_rate'] + +CHARTS = { + 'net': { + 'options': [None, 'mysql Bandwidth', 'kilobits/s', 'bandwidth', 'mysql.net', 'area'], + 'lines': [ + ["Bytes_received", "in", "incremental", 8, 1024], + ["Bytes_sent", "out", "incremental", -8, 1024] + ]}, + 'queries': { + 'options': [None, 'mysql Queries', 'queries/s', 'queries', 'mysql.queries', 'line'], + 'lines': [ + ["Queries", "queries", "incremental"], + ["Questions", "questions", "incremental"], + ["Slow_queries", "slow_queries", "incremental"] + ]}, + 'handlers': { + 'options': [None, 'mysql Handlers', 'handlers/s', 'handlers', 'mysql.handlers', 'line'], + 'lines': [ + ["Handler_commit", "commit", "incremental"], + ["Handler_delete", "delete", "incremental"], + ["Handler_prepare", "prepare", "incremental"], + ["Handler_read_first", "read_first", "incremental"], + ["Handler_read_key", "read_key", "incremental"], + ["Handler_read_next", "read_next", "incremental"], + ["Handler_read_prev", "read_prev", "incremental"], + ["Handler_read_rnd", "read_rnd", "incremental"], + ["Handler_read_rnd_next", "read_rnd_next", "incremental"], + ["Handler_rollback", "rollback", "incremental"], + ["Handler_savepoint", "savepoint", "incremental"], + ["Handler_savepoint_rollback", "savepoint_rollback", "incremental"], + ["Handler_update", "update", "incremental"], + ["Handler_write", "write", "incremental"] + ]}, + 'table_locks': { + 'options': [None, 'mysql Tables Locks', 'locks/s', 'locks', 'mysql.table_locks', 'line'], + 'lines': [ + ["Table_locks_immediate", "immediate", "incremental"], + ["Table_locks_waited", "waited", "incremental", -1, 1] + ]}, + 'join_issues': { + 'options': [None, 'mysql Select Join Issues', 'joins/s', 'issues', 'mysql.join_issues', 'line'], + 'lines': [ + ["Select_full_join", "full_join", "incremental"], + ["Select_full_range_join", "full_range_join", "incremental"], + ["Select_range", "range", "incremental"], + ["Select_range_check", "range_check", "incremental"], + ["Select_scan", "scan", "incremental"] + ]}, + 'sort_issues': { + 'options': [None, 'mysql Sort Issues', 'issues/s', 'issues', 'mysql.sort_issues', 'line'], + 'lines': [ + ["Sort_merge_passes", "merge_passes", "incremental"], + ["Sort_range", "range", "incremental"], + ["Sort_scan", "scan", "incremental"] + ]}, + 'tmp': { + 'options': [None, 'mysql Tmp Operations', 'counter', 'temporaries', 'mysql.tmp', 'line'], + 'lines': [ + ["Created_tmp_disk_tables", "disk_tables", "incremental"], + ["Created_tmp_files", "files", "incremental"], + ["Created_tmp_tables", "tables", "incremental"] + ]}, + 'connections': { + 'options': [None, 'mysql Connections', 'connections/s', 'connections', 'mysql.connections', 'line'], + 'lines': [ + ["Connections", "all", "incremental"], + ["Aborted_connects", "aborted", "incremental"] + ]}, + 'binlog_cache': { + 'options': [None, 'mysql Binlog Cache', 'transactions/s', 'binlog', 'mysql.binlog_cache', 'line'], + 'lines': [ + ["Binlog_cache_disk_use", "disk", "incremental"], + ["Binlog_cache_use", "all", "incremental"] + ]}, + 'threads': { + 'options': [None, 'mysql Threads', 'threads', 'threads', 'mysql.threads', 'line'], + 'lines': [ + ["Threads_connected", "connected", "absolute"], + ["Threads_created", "created", "incremental"], + ["Threads_cached", "cached", "absolute", -1, 1], + ["Threads_running", "running", "absolute"], + ]}, + 'thread_cache_misses': { + 'options': [None, 'mysql Threads Cache Misses', 'misses', 'threads', 'mysql.thread_cache_misses', 'area'], + 'lines': [ + ["Thread_cache_misses", "misses", "absolute", 1, 100] + ]}, + 'innodb_io': { + 'options': [None, 'mysql InnoDB I/O Bandwidth', 'kilobytes/s', 'innodb', 'mysql.innodb_io', 'area'], + 'lines': [ + ["Innodb_data_read", "read", "incremental", 1, 1024], + ["Innodb_data_written", "write", "incremental", -1, 1024] + ]}, + 'innodb_io_ops': { + 'options': [None, 'mysql InnoDB I/O Operations', 'operations/s', 'innodb', 'mysql.innodb_io_ops', 'line'], + 'lines': [ + ["Innodb_data_reads", "reads", "incremental"], + ["Innodb_data_writes", "writes", "incremental", -1, 1], + ["Innodb_data_fsyncs", "fsyncs", "incremental"] + ]}, + 'innodb_io_pending_ops': { + 'options': [None, 'mysql InnoDB Pending I/O Operations', 'operations', 'innodb', 'mysql.innodb_io_pending_ops', 'line'], + 'lines': [ + ["Innodb_data_pending_reads", "reads", "absolute"], + ["Innodb_data_pending_writes", "writes", "absolute", -1, 1], + ["Innodb_data_pending_fsyncs", "fsyncs", "absolute"] + ]}, + 'innodb_log': { + 'options': [None, 'mysql InnoDB Log Operations', 'operations/s', 'innodb', 'mysql.innodb_log', 'line'], + 'lines': [ + ["Innodb_log_waits", "waits", "incremental"], + ["Innodb_log_write_requests", "write_requests", "incremental", -1, 1], + ["Innodb_log_writes", "writes", "incremental", -1, 1], + ]}, + 'innodb_os_log': { + 'options': [None, 'mysql InnoDB OS Log Operations', 'operations', 'innodb', 'mysql.innodb_os_log', 'line'], + 'lines': [ + ["Innodb_os_log_fsyncs", "fsyncs", "incremental"], + ["Innodb_os_log_pending_fsyncs", "pending_fsyncs", "absolute"], + ["Innodb_os_log_pending_writes", "pending_writes", "absolute", -1, 1], + ]}, + 'innodb_os_log_io': { + 'options': [None, 'mysql InnoDB OS Log Bandwidth', 'kilobytes/s', 'innodb', 'mysql.innodb_os_log_io', 'area'], + 'lines': [ + ["Innodb_os_log_written", "write", "incremental", -1, 1024], + ]}, + 'innodb_cur_row_lock': { + 'options': [None, 'mysql InnoDB Current Row Locks', 'operations', 'innodb', 'mysql.innodb_cur_row_lock', 'area'], + 'lines': [ + ["Innodb_row_lock_current_waits", "current_waits", "absolute"] + ]}, + 'innodb_rows': { + 'options': [None, 'mysql InnoDB Row Operations', 'operations/s', 'innodb', 'mysql.innodb_rows', 'area'], + 'lines': [ + ["Innodb_rows_inserted", "read", "incremental"], + ["Innodb_rows_read", "deleted", "incremental", -1, 1], + ["Innodb_rows_updated", "inserted", "incremental", 1, 1], + ["Innodb_rows_deleted", "updated", "incremental", -1, 1], + ]}, + 'innodb_buffer_pool_pages': { + 'options': [None, 'mysql InnoDB Buffer Pool Pages', 'pages', 'innodb', 'mysql.innodb_buffer_pool_pages', 'line'], + 'lines': [ + ["Innodb_buffer_pool_pages_data", "data", "absolute"], + ["Innodb_buffer_pool_pages_dirty", "dirty", "absolute", -1, 1], + ["Innodb_buffer_pool_pages_free", "free", "absolute"], + ["Innodb_buffer_pool_pages_flushed", "flushed", "incremental", -1, 1], + ["Innodb_buffer_pool_pages_misc", "misc", "absolute", -1, 1], + ["Innodb_buffer_pool_pages_total", "total", "absolute"] + ]}, + 'innodb_buffer_pool_bytes': { + 'options': [None, 'mysql InnoDB Buffer Pool Bytes', 'MB', 'innodb', 'mysql.innodb_buffer_pool_bytes', 'area'], + 'lines': [ + ["Innodb_buffer_pool_bytes_data", "data", "absolute", 1, 1024 * 1024], + ["Innodb_buffer_pool_bytes_dirty", "dirty", "absolute", -1, 1024 * 1024] + ]}, + 'innodb_buffer_pool_read_ahead': { + 'options': [None, 'mysql InnoDB Buffer Pool Read Ahead', 'operations/s', 'innodb', 'mysql.innodb_buffer_pool_read_ahead', 'area'], + 'lines': [ + ["Innodb_buffer_pool_read_ahead", "all", "incremental"], + ["Innodb_buffer_pool_read_ahead_evicted", "evicted", "incremental", -1, 1], + ["Innodb_buffer_pool_read_ahead_rnd", "random", "incremental"] + ]}, + 'innodb_buffer_pool_reqs': { + 'options': [None, 'mysql InnoDB Buffer Pool Requests', 'requests/s', 'innodb', 'mysql.innodb_buffer_pool_reqs', 'area'], + 'lines': [ + ["Innodb_buffer_pool_read_requests", "reads", "incremental"], + ["Innodb_buffer_pool_write_requests", "writes", "incremental", -1, 1] + ]}, + 'innodb_buffer_pool_ops': { + 'options': [None, 'mysql InnoDB Buffer Pool Operations', 'operations/s', 'innodb', 'mysql.innodb_buffer_pool_ops', 'area'], + 'lines': [ + ["Innodb_buffer_pool_reads", "disk reads", "incremental"], + ["Innodb_buffer_pool_wait_free", "wait free", "incremental", -1, 1] + ]}, + 'qcache_ops': { + 'options': [None, 'mysql QCache Operations', 'queries/s', 'qcache', 'mysql.qcache_ops', 'line'], + 'lines': [ + ["Qcache_hits", "hits", "incremental"], + ["Qcache_lowmem_prunes", "lowmem prunes", "incremental", -1, 1], + ["Qcache_inserts", "inserts", "incremental"], + ["Qcache_not_cached", "not cached", "incremental", -1, 1] + ]}, + 'qcache': { + 'options': [None, 'mysql QCache Queries in Cache', 'queries', 'qcache', 'mysql.qcache', 'line'], + 'lines': [ + ["Qcache_queries_in_cache", "queries", "absolute"] + ]}, + 'qcache_freemem': { + 'options': [None, 'mysql QCache Free Memory', 'MB', 'qcache', 'mysql.qcache_freemem', 'area'], + 'lines': [ + ["Qcache_free_memory", "free", "absolute", 1, 1024 * 1024] + ]}, + 'qcache_memblocks': { + 'options': [None, 'mysql QCache Memory Blocks', 'blocks', 'qcache', 'mysql.qcache_memblocks', 'line'], + 'lines': [ + ["Qcache_free_blocks", "free", "absolute"], + ["Qcache_total_blocks", "total", "absolute"] + ]}, + 'key_blocks': { + 'options': [None, 'mysql MyISAM Key Cache Blocks', 'blocks', 'myisam', 'mysql.key_blocks', 'line'], + 'lines': [ + ["Key_blocks_unused", "unused", "absolute"], + ["Key_blocks_used", "used", "absolute", -1, 1], + ["Key_blocks_not_flushed", "not flushed", "absolute"] + ]}, + 'key_requests': { + 'options': [None, 'mysql MyISAM Key Cache Requests', 'requests/s', 'myisam', 'mysql.key_requests', 'area'], + 'lines': [ + ["Key_read_requests", "reads", "incremental"], + ["Key_write_requests", "writes", "incremental", -1, 1] + ]}, + 'key_disk_ops': { + 'options': [None, 'mysql MyISAM Key Cache Disk Operations', 'operations/s', 'myisam', 'mysql.key_disk_ops', 'area'], + 'lines': [ + ["Key_reads", "reads", "incremental"], + ["Key_writes", "writes", "incremental", -1, 1] + ]}, + 'files': { + 'options': [None, 'mysql Open Files', 'files', 'files', 'mysql.files', 'line'], + 'lines': [ + ["Open_files", "files", "absolute"] + ]}, + 'files_rate': { + 'options': [None, 'mysql Opened Files Rate', 'files/s', 'files', 'mysql.files_rate', 'line'], + 'lines': [ + ["Opened_files", "files", "incremental"] + ]}, + 'binlog_stmt_cache': { + 'options': [None, 'mysql Binlog Statement Cache', 'statements/s', 'binlog', 'mysql.binlog_stmt_cache', 'line'], + 'lines': [ + ["Binlog_stmt_cache_disk_use", "disk", "incremental"], + ["Binlog_stmt_cache_use", "all", "incremental"] + ]}, + 'connection_errors': { + 'options': [None, 'mysql Connection Errors', 'connections/s', 'connections', 'mysql.connection_errors', 'line'], + 'lines': [ + ["Connection_errors_accept", "accept", "incremental"], + ["Connection_errors_internal", "internal", "incremental"], + ["Connection_errors_max_connections", "max", "incremental"], + ["Connection_errors_peer_address", "peer_addr", "incremental"], + ["Connection_errors_select", "select", "incremental"], + ["Connection_errors_tcpwrap", "tcpwrap", "incremental"] + ]} + +} + + +class Service(SimpleService): + def __init__(self, configuration=None, name=None): + SimpleService.__init__(self, configuration=configuration, name=name) + self._parse_config(configuration) + self.order = ORDER + self.definitions = CHARTS + self.connection = None + + def _parse_config(self, configuration): + """ + Parse configuration to collect data from MySQL server + :param configuration: dict + :return: dict + """ + if self.name is None: + self.name = 'local' + if 'user' not in configuration: + self.configuration['user'] = 'root' + if 'pass' not in configuration: + self.configuration['pass'] = '' + if 'my.cnf' in configuration: + self.configuration['socket'] = '' + self.configuration['host'] = '' + self.configuration['port'] = 0 + elif 'socket' in configuration: + self.configuration['my.cnf'] = '' + self.configuration['host'] = '' + self.configuration['port'] = 0 + elif 'host' in configuration: + self.configuration['my.cnf'] = '' + self.configuration['socket'] = '' + if 'port' in configuration: + self.configuration['port'] = int(configuration['port']) + else: + self.configuration['port'] = 3306 + + def _connect(self): + """ + Try to connect to MySQL server + """ + try: + self.connection = MySQLdb.connect(user=self.configuration['user'], + passwd=self.configuration['pass'], + read_default_file=self.configuration['my.cnf'], + unix_socket=self.configuration['socket'], + host=self.configuration['host'], + port=self.configuration['port'], + connect_timeout=self.update_every) + except MySQLdb.OperationalError as e: + self.error("Cannot establish connection to MySQL.") + self.debug(str(e)) + raise RuntimeError + except Exception as e: + self.error("problem connecting to server:", e) + raise RuntimeError + + def _get_data(self): + """ + Get raw data from MySQL server + :return: dict + """ + if self.connection is None: + try: + self._connect() + except RuntimeError: + return None + try: + cursor = self.connection.cursor() + cursor.execute(QUERY) + raw_data = cursor.fetchall() + except MySQLdb.OperationalError as e: + self.debug("Reconnecting due to", str(e)) + self._connect() + cursor = self.connection.cursor() + cursor.execute(QUERY) + raw_data = cursor.fetchall() + except Exception as e: + self.error("cannot execute query.", e) + self.connection.close() + self.connection = None + return None + + data = dict(raw_data) + try: + data["Thread_cache_misses"] = int(data["Threads_created"] * 10000 / float(data["Connections"])) + except: + data["Thread_cache_misses"] = 0 + + return data + + def check(self): + """ + Check if service is able to connect to server + :return: boolean + """ + try: + self.connection = self._connect() + return True + except RuntimeError: + self.connection = None + return False |