----- Original Message ----- > From: "Abhishek Dixit" <dixitabhi@xxxxxxxxx> > To: "ceph-devel" <ceph-devel@xxxxxxxxxxxxxxx> > Sent: Wednesday, February 25, 2015 8:35:40 PM > Subject: RGW : Transaction Id in response? > > Hi, > > I was doing comparison of Open Stack Swift response headers and Ceph > RGW response. > This is in regard to X-Trans-Id header in response from Open Stack > Swift storage. > Swift response to a request always have the header "X-Trans-Id". > X-Trans-Id : A unique transaction identifier for this request. > > X-Trans-Id seems to serve two purpose: > 1. Every log messages for a request will carry this and aid in > debugging/analyzing. > 2. Benchmarking for latency. > > So, do we have similar unique identifier in Ceph RGW response which > associates with each request? > > Or do we need add support for this? > At the moment there is no such identifier. We can leverage the rados client instance id that each radosgw instance gets when connecting to the backend, and there's also a unique running number that we use to identify each request within that gateway. We can probably concatenate these and return it as the unique identifier. Yehuda -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
