Re: [Architecture] Timestamp usage in the data stream and hive

2014-07-26 Thread Chamil Jeewantha
Hi Kasun, Yes this timestamp is per event. However, the scenarios mentioned in the previous mail can safely use the event timestamp. Let me further explain. The Application server publish an event to BAM per each received Http Request. Here the meaningful timestamp of the event is the request's r

Re: [Architecture] Timestamp usage in the data stream and hive

2014-07-26 Thread Kasun Gajasinghe
Hi, Is this time stamp set per event? If so, the timestamp might be useful since the event generation time and the event sent time can be different. This could especially be true when sending events as batch requests asynchronously On Saturday, July 26, 2014, Chamil Jeewantha wrote: > Hi All, >

[Architecture] Timestamp usage in the data stream and hive

2014-07-25 Thread Chamil Jeewantha
Hi All, [1] explains the Timestamp field of an event clearly. "*TimeStamp* - This is a long value and this is optional. If the TimeStamp value is omitted the server *it* expected to populate the TimeStamp value with event arrival time at the backend server (CEP/BAM)" But I have seen the timestam