From 9d8e5d763b173247f95f0769fd52372a8a7a5371 Mon Sep 17 00:00:00 2001
From: John Spray <john.spray@redhat.com>
Date: Mon, 25 Sep 2017 10:44:28 +0100
Subject: [PATCH] mon: implement MDSMonitor::get_store_prefixes

Fixes: http://tracker.ceph.com/issues/21534
Signed-off-by: John Spray <john.spray@redhat.com>
(cherry picked from commit a3c317b406c69b9d6a2d7df94806f4c308e6ee6a)
---
 src/mon/MDSMonitor.cc | 13 ++++++++++---
 src/mon/MDSMonitor.h  |  3 +--
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/mon/MDSMonitor.cc b/src/mon/MDSMonitor.cc
index 32a80a7b8b16a..e34be99aed3ef 100644
--- a/src/mon/MDSMonitor.cc
+++ b/src/mon/MDSMonitor.cc
@@ -49,6 +49,10 @@ static ostream& _prefix(std::ostream *_dout, Monitor *mon, FSMap const& fsmap) {
 		<< ").mds e" << fsmap.get_epoch() << " ";
 }
 
+static const string MDS_METADATA_PREFIX("mds_metadata");
+static const string MDS_HEALTH_PREFIX("mds_health");
+
+
 /*
  * Specialized implementation of cmd_getval to allow us to parse
  * out strongly-typedef'd types
@@ -71,9 +75,6 @@ template<> bool cmd_getval(CephContext *cct, const cmdmap_t& cmdmap,
   return cmd_getval(cct, cmdmap, k, (int64_t&)val);
 }
 
-static const string MDS_METADATA_PREFIX("mds_metadata");
-
-
 // my methods
 
 void MDSMonitor::print_map(FSMap &m, int dbl)
@@ -89,6 +90,12 @@ void MDSMonitor::create_initial()
   dout(10) << "create_initial" << dendl;
 }
 
+void MDSMonitor::get_store_prefixes(std::set<string>& s)
+{
+  s.insert(service_name);
+  s.insert(MDS_METADATA_PREFIX);
+  s.insert(MDS_HEALTH_PREFIX);
+}
 
 void MDSMonitor::update_from_paxos(bool *need_bootstrap)
 {
diff --git a/src/mon/MDSMonitor.h b/src/mon/MDSMonitor.h
index c14c9603943cc..3d84f92a811fc 100644
--- a/src/mon/MDSMonitor.h
+++ b/src/mon/MDSMonitor.h
@@ -34,14 +34,13 @@ class MMDSLoadTargets;
 class MMDSMap;
 class FileSystemCommandHandler;
 
-#define MDS_HEALTH_PREFIX "mds_health"
-
 class MDSMonitor : public PaxosService {
  public:
   MDSMonitor(Monitor *mn, Paxos *p, string service_name);
 
   // service methods
   void create_initial() override;
+  void get_store_prefixes(std::set<string>& s) override;
   void update_from_paxos(bool *need_bootstrap) override;
   void init() override;
   void create_pending() override; 
-- 
2.39.5