diff options
Diffstat (limited to 'python.d/redis.chart.py')
| -rw-r--r-- | python.d/redis.chart.py | 110 |
1 files changed, 79 insertions, 31 deletions
diff --git a/python.d/redis.chart.py b/python.d/redis.chart.py index 218401e1..61f4f6d6 100644 --- a/python.d/redis.chart.py +++ b/python.d/redis.chart.py @@ -19,40 +19,58 @@ retries = 60 # 'unix_socket': None # }} -ORDER = ['operations', 'hit_rate', 'memory', 'keys', 'clients', 'slaves'] +ORDER = ['operations', 'hit_rate', 'memory', 'keys', 'net', 'connections', 'clients', 'slaves', 'persistence'] CHARTS = { 'operations': { - 'options': [None, 'Operations', 'operations/s', 'Statistics', 'redis.operations', 'line'], + 'options': [None, 'Redis Operations', 'operations/s', 'operations', 'redis.operations', 'line'], 'lines': [ + ['total_commands_processed', 'commands', 'incremental'], ['instantaneous_ops_per_sec', 'operations', 'absolute'] ]}, 'hit_rate': { - 'options': [None, 'Hit rate', 'percent', 'Statistics', 'redis.hit_rate', 'line'], + 'options': [None, 'Redis Hit rate', 'percent', 'hits', 'redis.hit_rate', 'line'], 'lines': [ ['hit_rate', 'rate', 'absolute'] ]}, 'memory': { - 'options': [None, 'Memory utilization', 'kilobytes', 'Memory', 'redis.memory', 'line'], + 'options': [None, 'Redis Memory utilization', 'kilobytes', 'memory', 'redis.memory', 'line'], 'lines': [ ['used_memory', 'total', 'absolute', 1, 1024], ['used_memory_lua', 'lua', 'absolute', 1, 1024] ]}, + 'net': { + 'options': [None, 'Redis Bandwidth', 'kilobits/s', 'network', 'redis.net', 'area'], + 'lines': [ + ['total_net_input_bytes', 'in', 'incremental', 8, 1024], + ['total_net_output_bytes', 'out', 'incremental', -8, 1024] + ]}, 'keys': { - 'options': [None, 'Database keys', 'keys', 'Keys', 'redis.keys', 'line'], + 'options': [None, 'Redis Keys per Database', 'keys', 'keys', 'redis.keys', 'line'], 'lines': [ # lines are created dynamically in `check()` method ]}, + 'connections': { + 'options': [None, 'Redis Connections', 'connections/s', 'connections', 'redis.connections', 'line'], + 'lines': [ + ['total_connections_received', 'received', 'incremental', 1], + ['rejected_connections', 'rejected', 'incremental', -1] + ]}, 'clients': { - 'options': [None, 'Clients', 'clients', 'Clients', 'redis.clients', 'line'], + 'options': [None, 'Redis Clients', 'clients', 'connections', 'redis.clients', 'line'], 'lines': [ - ['connected_clients', 'connected', 'absolute'], - ['blocked_clients', 'blocked', 'absolute'] + ['connected_clients', 'connected', 'absolute', 1], + ['blocked_clients', 'blocked', 'absolute', -1] ]}, 'slaves': { - 'options': [None, 'Slaves', 'slaves', 'Replication', 'redis.slaves', 'line'], + 'options': [None, 'Redis Slaves', 'slaves', 'replication', 'redis.slaves', 'line'], 'lines': [ ['connected_slaves', 'connected', 'absolute'] + ]}, + 'persistence': { + 'options': [None, 'Redis Persistence Changes Since Last Save', 'changes', 'persistence', 'redis.rdb_changes', 'line'], + 'lines': [ + ['rdb_changes_since_last_save', 'changes', 'absolute'] ]} } @@ -61,46 +79,73 @@ class Service(SocketService): def __init__(self, configuration=None, name=None): SocketService.__init__(self, configuration=configuration, name=name) self.request = "INFO\r\n" - self.host = "localhost" - self.port = 6379 - self.unix_socket = None self.order = ORDER self.definitions = CHARTS self._keep_alive = True self.chart_name = "" + self.passwd = None + self.port = 6379 + if 'port' in configuration: + self.port = configuration['port'] + if 'pass' in configuration: + self.passwd = configuration['pass'] + if 'host' in configuration: + self.host = configuration['host'] + if 'socket' in configuration: + self.unix_socket = configuration['socket'] def _get_data(self): """ Get data from socket :return: dict """ + if self.passwd: + info_request = self.request + self.request = "AUTH " + self.passwd + "\r\n" + raw = self._get_raw_data().strip() + if raw != "+OK": + self.error("invalid password") + return None + self.request = info_request + response = self._get_raw_data() + if response is None: + # error has already been logged + return None + try: - raw = self._get_raw_data().split("\n") + parsed = response.split("\n") except AttributeError: - self.error("no data received") + self.error("response is invalid/empty") return None + data = {} - for line in raw: - if line.startswith(('instantaneous', 'keyspace', 'used_memory', 'connected', 'blocked')): - try: - t = line.split(':') - data[t[0]] = int(t[1]) - except (IndexError, ValueError): - pass - elif line.startswith('db'): + for line in parsed: + if len(line) < 5 or line[0] == '$' or line[0] == '#': + continue + + if line.startswith('db'): tmp = line.split(',')[0].replace('keys=', '') record = tmp.split(':') - data[record[0]] = int(record[1]) + data[record[0]] = record[1] + continue + + try: + t = line.split(':') + data[t[0]] = t[1] + except (IndexError, ValueError): + self.debug("invalid line received: " + str(line)) + pass + + if len(data) == 0: + self.error("received data doesn't have any records") + return None + try: - data['hit_rate'] = int((data['keyspace_hits'] / float(data['keyspace_hits'] + data['keyspace_misses'])) * 100) + data['hit_rate'] = (int(data['keyspace_hits']) * 100) / (int(data['keyspace_hits']) + int(data['keyspace_misses'])) except: data['hit_rate'] = 0 - if len(data) == 0: - self.error("received data doesn't have needed records") - return None - else: - return data + return data def _check_raw_data(self, data): """ @@ -112,12 +157,15 @@ class Service(SocketService): length = len(data) supposed = data.split('\n')[0][1:] offset = len(supposed) + 4 # 1 dollar sing, 1 new line character + 1 ending sequence '\r\n' + if not supposed.isdigit(): + return True supposed = int(supposed) + if length - offset >= supposed: + self.debug("received full response from redis") return True - else: - return False + self.debug("waiting more data from redis") return False def check(self): |