From: Venky Shankar <vshankar@redhat.com>
Date: Wed, 4 Jul 2018 09:44:57 +0000 (-0400)
Subject: mds: show session load average in dump session
X-Git-Tag: v13.2.3~57^2~6
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=0a3669bc54754a64204c9a254d4b412261053d9e;p=ceph.git

mds: show session load average in dump session

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit 682dc08cbd521342b4abc45fd85edb2dd7bc5682)
---

diff --git a/src/mds/MDSRank.cc b/src/mds/MDSRank.cc
index 8099a900969..26533c4a430 100644
--- a/src/mds/MDSRank.cc
+++ b/src/mds/MDSRank.cc
@@ -2264,6 +2264,9 @@ void MDSRankDispatcher::dump_sessions(const SessionFilter &filter, Formatter *f)
     f->dump_int("num_caps", s->caps.size());
 
     f->dump_string("state", s->get_state_name());
+    if (s->is_open() || s->is_stale()) {
+      f->dump_unsigned("request_load_avg", s->get_load_avg());
+    }
     f->dump_int("replay_requests", is_clientreplay() ? s->get_request_count() : 0);
     f->dump_unsigned("completed_requests", s->get_num_completed_requests());
     f->dump_bool("reconnecting", server->waiting_for_reconnect(p.first.num()));
diff --git a/src/mds/SessionMap.h b/src/mds/SessionMap.h
index 1a4043948f1..660a05aa7d4 100644
--- a/src/mds/SessionMap.h
+++ b/src/mds/SessionMap.h
@@ -104,7 +104,7 @@ private:
   std::deque<version_t> projected;
 
   // request load average for this session
-  DecayCounter load_avg;
+  mutable DecayCounter load_avg;
   DecayRate    load_avg_rate;
 
 public:
@@ -209,6 +209,9 @@ public:
     assert(is_open() || is_stale());
     load_avg_rate.set_halflife(rate);
   }
+  uint64_t get_load_avg() const {
+    return (uint64_t)load_avg.get(ceph_clock_now(), load_avg_rate);
+  }
   void hit_session() {
     load_avg.hit(ceph_clock_now(), load_avg_rate);
   }