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diff --git a/src/messages/MGetPoolStatsReply.h b/src/messages/MGetPoolStatsReply.h
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+++ b/src/messages/MGetPoolStatsReply.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software 
+ * Foundation.  See file COPYING.
+ * 
+ */
+
+
+#ifndef CEPH_MGETPOOLSTATSREPLY_H
+#define CEPH_MGETPOOLSTATSREPLY_H
+
+class MGetPoolStatsReply final : public PaxosServiceMessage {
+  static constexpr int HEAD_VERSION = 2;
+  static constexpr int COMPAT_VERSION = 1;
+
+public:
+  uuid_d fsid;
+  boost::container::flat_map<std::string, pool_stat_t> pool_stats;
+  bool per_pool = false;
+
+  MGetPoolStatsReply() : PaxosServiceMessage{MSG_GETPOOLSTATSREPLY, 0,
+					     HEAD_VERSION, COMPAT_VERSION} {}
+  MGetPoolStatsReply(uuid_d& f, ceph_tid_t t, version_t v) :
+    PaxosServiceMessage{MSG_GETPOOLSTATSREPLY, v,
+			HEAD_VERSION, COMPAT_VERSION},
+    fsid(f) {
+    set_tid(t);
+  }
+
+private:
+  ~MGetPoolStatsReply() final {}
+
+public:
+  std::string_view get_type_name() const override { return "getpoolstats"; }
+  void print(std::ostream& out) const override {
+    out << "getpoolstatsreply(" << get_tid();
+    if (per_pool)
+      out << " per_pool";
+    out << " v" << version <<  ")";
+  }
+
+  void encode_payload(uint64_t features) override {
+    using ceph::encode;
+    paxos_encode();
+    encode(fsid, payload);
+    encode(pool_stats, payload, features);
+    encode(per_pool, payload);
+  }
+  void decode_payload() override {
+    using ceph::decode;
+    auto p = payload.cbegin();
+    paxos_decode(p);
+    decode(fsid, p);
+    decode(pool_stats, p);
+    if (header.version >= 2) {
+      decode(per_pool, p);
+    } else {
+      per_pool = false;
+    }
+  }
+private:
+  template<class T, typename... Args>
+  friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
+};
+
+#endif