rgw: set priority on perf counters

...to cue MgrClient to pass these on to ceph-mgr

Signed-off-by: John Spray <john.spray@redhat.com>
(cherry picked from commit 85144f583f758a1803a3d136be605b717c10084d)

diff --git a/src/rgw/rgw_common.cc b/src/rgw/rgw_common.cc
index e3edcc52eaa597aec3a1a59d1425110d695e52c6..4e01d0c17defc14297c470ec5d7924c918b16640 100644 (file)
--- a/src/rgw/rgw_common.cc
+++ b/src/rgw/rgw_common.cc
@@ -138,6 +138,10 @@ int rgw_perf_start(CephContext *cct)
 {
   PerfCountersBuilder plb(cct, cct->_conf->name.to_str(), l_rgw_first, l_rgw_last);
 
+  // RGW emits comparatively few metrics, so let's be generous
+  // and mark them all USEFUL to get transmission to ceph-mgr by default.
+  plb.set_prio_default(PerfCountersBuilder::PRIO_USEFUL);
+
   plb.add_u64_counter(l_rgw_req, "req", "Requests");
   plb.add_u64_counter(l_rgw_failed_req, "failed_req", "Aborted requests");