log and fix

exporter.py

 # coding=utf-8
 import abc
 import math
-import pprint
 import time
 import json
+import logging
 
 from prometheus_client.core import GaugeMetricFamily
 
@@ -44,10 +44,10 @@ class TencentExporter(Exporter):
                 instance_to_get = instance_id_list[batch_size*i : batch_size*(i+1)]
                 try:
                     res = self.monitor.get_cdb_metric(instance_to_get, label, self.data_interval)
-                    # print(res)
+                    # logging.info(res)
                     data_from_tencent[label].extend(res['DataPoints'])
                 except Exception as e:
-                    print(e)
+                    logging.error(e)
         return data_from_tencent
 
     def _transfer_to_prometheus_format(self, data):
@@ -69,10 +69,13 @@ class TencentExporter(Exporter):
             ])
 
             if len(instance_data_list) != len(self.instances):
-                print(time.ctime(), label, u"取得监控数据的机器数量与配置的机器数量不一致", len(instance_data_list))
-                pprint.pprint(instance_data_list)
+                logging.warn("[label:{label}] 取得监控数据的机器数量{data_num}与配置的机器数量{ins_num}不一致".format(
+                    label=label,
+                    data_num=len(instance_data_list),
+                    ins_num=len(self.instances)))
 
             for instance_data in instance_data_list:
+                try:
                     value = instance_data['Values'][-1]
                     instance_id = instance_data['Dimensions'][0]['Value']
                     instance = self.instances[instance_id]
@@ -85,6 +88,9 @@ class TencentExporter(Exporter):
                     with_factor_metric_family.add_metric(
                             ['{}*{}'.format(instance_name,rds_factor), instance_type, service_provider, instance_project],
                             value*rds_factor)
+                except Exception as e:
+                    logging.exception(e)
+                    logging.error(data)
             metrics_to_export.extend([avg_metric_family, with_factor_metric_family])
 
         return metrics_to_export
@@ -122,7 +128,7 @@ class AliyunExporter(Exporter):
                     res = self.monitor.get_rds_metric(instance_id_list, label)
                     metrics_from_aliyun[label].extend(res['Datapoints'])
                 except Exception as e:
-                    print(e)
+                    logging.info(e)
 
         return metrics_from_aliyun
 
@@ -163,7 +169,7 @@ class AliyunExporter(Exporter):
 if __name__ == "__main__":
     tencent_exporter = TencentExporter()
     data = tencent_exporter.export_prometheus_data()
-    # # print(data)
+    # # logging.info(data)
     # aliyun_exporter = AliyunExporter()
     # data = aliyun_exporter._fetch_monitor_data()
-    # print(data)
+    # logging.info(data)

main.py

@@ -3,6 +3,7 @@ import time
 import json
 import random
 import math
+import logging
 
 import yaml
 from prometheus_client import start_http_server
@@ -18,13 +19,19 @@ class RDSCollector(object):
         ]
 
     def collect(self):
+        logging.info('='*50)
         metrics = []
         for exporter in self.exporter_list:
             metrics.extend(exporter.export_prometheus_data())
+        logging.info('='*50)
         for m in metrics:
             yield m
 
 def main():
+    logging.basicConfig(format='%(asctime)s %(message)s')
+    logging.getLogger().setLevel(logging.INFO)
+    logging.info('gm-mysql-exporter started')
+
     REGISTRY.register(RDSCollector())
     start_http_server(7086)
     while True: