Symptoms
CCP shows negative traffic usage for OACI VM.
In OACI IM database some event_id appeared on wrong places
im=# select event_id,event_timestamp, public_inbound_traffic, public_inbound_traffic_last_reported, public_outbound_traffic, public_outbound_traffic_last_reported from ve_resource_usage_history where ve_ref = 4532 and event_timestamp > '2014-05-05 03:09:57+04' and event_timestamp < '2014-05-05 05:22:13+04' order by event_timestamp asc;
event_id | event_timestamp | public_inbound_traffic | public_inbound_traffic_last_reported | public_outbound_traffic | public_outbound_traffic_last_reported
---------------------+------------------------+------------------------+--------------------------------------+-------------------------+---------------------------------------
2872777386630102056 | 2014-05-05 03:14:50+04 | 267115337069 | 11064020897 | 1260493456526 | 51444244150
....
....
2872777386630210582 | 2014-05-05 04:00:47+04 | 267127415969 | 11076099797 | 1260582592172 | 51533379796
2872777386630200771 | 2014-05-05 04:02:14+04 | 267125993653 | <== 11074677481 | 1260579056758 | 51529844382
2872777386630211904 | 2014-05-05 04:07:29+04 | 267127597765 | 11076281593 | 1260582785990 | 51533573614
....
....
2872777386630375912 | 2014-05-05 05:26:25+04 | 267150364050 | 11099047878 | 1260771037619 | 51721825243
2872777386630398992 | 2014-05-05 05:30:48+04 | 267153029787 | 11101713615 | 1260787587081 | 51738374705
2872777386630387249 | 2014-05-05 05:31:42+04 | 267152118417 | <== 11100802245 | 1260778966562 | 51729754186
2872777386630399002 | 2014-05-05 05:36:57+04 | 278254743162 | 11101713375 | 1312525948566 | 51738361485
....
Cause
Event_id is growing monotonously but event timestamp - not this means that this two reports came to IM in mixed order (event_id is generated on side of PCS dispatcher and always monotonous).
IM itself is aware about such situations and on traffic calculation uses ordering by event_id.
In case of OA as graph plotter we can use only date as x-axis parameter. It is visible only on bandwidth graphs as this is the only graph where data is recalculated.
BUG CCU-8618 submitted.
Resolution
Please contact Odin technical support and ask them to apply a workaround and contact your Account Manager to track down the status of the issue or to request a hotfix.