On Thu, Feb 26, 2015 at 10:51 PM, Yehuda Sadeh-Weinraub <yehuda@xxxxxxxxxx> wrote: > > > ----- 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 > Hi Yehuda, I will add "X-Trans-Id" as per you suggested approach. I have opened a new issue particularly for adding "X-Trans-Id" as many other issues report absence of this header. I have assigned this to myself. http://tracker.ceph.com/issues/10970 Thanks Abhishek Dixit -- 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
