Analytics node failes to purge stored data even though the data exceeds it threshold.
07/30/2015 09:35:26 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Database usage of 71 on ot2-opsm00037 exceeds threshold
07/30/2015 09:35:26 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: start times:OrderedDict([('SystemObjectFlowStartTime', 1436772521864673), ('SystemObjectMsgStartTime', 1436772521864673), ('SystemObjectStartTime', 1436772521864671), ('SystemObjectStatStartTime', 1436772521864674)])
07/30/2015 09:36:34 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Exception: Purge_id:def5d1ee-3652-11e5-a6d0-70e2840e0ba2 table:MessageTableTimestamp error: 'int' object has no attribute '__getitem__'
08/10/2015 04:18:47 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Database usage of 72 on ot2-opsm00037 exceeds threshold
08/10/2015 04:18:47 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: start times:OrderedDict([('SystemObjectFlowStartTime', 1436772521864673), ('SystemObjectMsgStartTime', 1436772521864673), ('SystemObjectStartTime', 1436772521864671), ('SystemObjectStatStartTime', 1436772521864674)])
08/10/2015 04:21:36 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Exception: Purge_id:75a94654-3ecb-11e5-a6d0-70e2840e0ba2 table:MessageTableTimestamp error: 'int' object has no attribute '__getitem__'
08/10/2015 05:12:21 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Database usage of 71 on ot2-opsm00037 exceeds threshold
08/10/2015 05:12:21 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: start times:OrderedDict([('SystemObjectFlowStartTime', 1436772521864673), ('SystemObjectMsgStartTime', 1436772521864673), ('SystemObjectStartTime', 1436772521864671), ('SystemObjectStatStartTime', 1436772521864674)])
08/10/2015 05:15:09 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Exception: Purge_id:f16b2b02-3ed2-11e5-a6d0-70e2840e0ba2 table:MessageTableTimestamp error: 'int' object has no attribute '__getitem__'
08/10/2015 06:05:49 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: Database usage of 71 on ot2-opsm00037 exceeds threshold
08/10/2015 06:05:49 AM [ot2-opsm00036:contrail-analytics-api:Analytics:0]: start times:OrderedDict([('SystemObjectFlowStartTime', 1436772521864673), ('SystemObjectMsgStartTime', 1436772521864673), ('SystemObjectStartTime', 1436772521864671), ('SystemObjectStatStartTime', 1436772521864674)])
This issue is seen on 2.20-64.