On Fri, 16 Jan 2015, Gregory Farnum wrote: > On Fri, Jan 16, 2015 at 11:28 AM, Lipeng Wan <lipengwan86@xxxxxxxxx> wrote: > > Dear all, > > > > Does Ceph provide a way to collect object-level I/O access traces? > > Specifically, can we collect the traces to record how many times each > > object has been accessed (read, write, etc.) during a fixed period of > > time? > > I don't think we have any programmatic access, but depending on what > you need it for you could enable messenger logging (or filestore > logging, depending on what exactly you want) and count the references > there. There are new librados lttng tracepoints queued up for hammer... see https://github.com/ceph/ceph/blob/master/src/tracing/librados.tp for the tracepoints. sage -- 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
