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diff --git a/src/ceph/src/mgr/MgrStandby.h b/src/ceph/src/mgr/MgrStandby.h
new file mode 100644
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--- /dev/null
+++ b/src/ceph/src/mgr/MgrStandby.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) 2016 John Spray <john.spray@redhat.com>
+ *
+ * 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 MGR_STANDBY_H_
+#define MGR_STANDBY_H_
+
+#include "auth/Auth.h"
+#include "common/Finisher.h"
+#include "common/Timer.h"
+#include "common/LogClient.h"
+
+#include "client/Client.h"
+#include "mon/MonClient.h"
+#include "osdc/Objecter.h"
+#include "PyModuleRegistry.h"
+
+
+class MMgrMap;
+class Mgr;
+
+class MgrStandby : public Dispatcher,
+		   public md_config_obs_t {
+public:
+  // config observer bits
+  const char** get_tracked_conf_keys() const override;
+  void handle_conf_change(const struct md_config_t *conf,
+                         const std::set <std::string> &changed) override;
+
+protected:
+  MonClient monc;
+  std::unique_ptr<Messenger> client_messenger;
+  Objecter objecter;
+  Client client;
+
+  LogClient log_client;
+  LogChannelRef clog, audit_clog;
+
+  Mutex lock;
+  SafeTimer timer;
+
+  PyModuleRegistry py_module_registry;
+  std::shared_ptr<Mgr> active_mgr;
+
+  int orig_argc;
+  const char **orig_argv;
+
+  std::string state_str();
+
+  void handle_mgr_map(MMgrMap *m);
+  void _update_log_config();
+  void send_beacon();
+
+  bool available_in_map;
+
+public:
+  MgrStandby(int argc, const char **argv);
+  ~MgrStandby() override;
+
+  bool ms_dispatch(Message *m) override;
+  bool ms_handle_reset(Connection *con) override { return false; }
+  void ms_handle_remote_reset(Connection *con) override {}
+  bool ms_get_authorizer(int dest_type, AuthAuthorizer **authorizer,
+                         bool force_new) override;
+  bool ms_handle_refused(Connection *con) override;
+
+  int init();
+  void shutdown();
+  void respawn();
+  int main(vector<const char *> args);
+  void handle_signal(int signum);
+  void tick();
+};
+
+#endif
+