ceph/src/mon/HealthMonitor.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2013 Inktank, Inc
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14 #ifndef CEPH_HEALTH_MONITOR_H
  15 #define CEPH_HEALTH_MONITOR_H
  16
  17 #include "mon/PaxosService.h"
  18
  19 class HealthMonitor : public PaxosService
  20 {
  21   version_t version = 0;
  22   map<int,health_check_map_t> quorum_checks;  // for each quorum member
  23   health_check_map_t leader_checks;           // leader only
  24
  25 public:
  26   HealthMonitor(Monitor *m, Paxos *p, const string& service_name);
  27
  28   /**
  29    * @defgroup HealthMonitor_Inherited_h Inherited abstract methods
  30    * @{
  31    */
  32   void init() override;
  33
  34   bool preprocess_query(MonOpRequestRef op) override;
  35   bool prepare_update(MonOpRequestRef op) override;
  36
  37   bool prepare_health_checks(MonOpRequestRef op);
  38
  39   bool check_leader_health();
  40   bool check_member_health();
  41
  42   void create_initial() override;
  43   void update_from_paxos(bool *need_bootstrap) override;
  44   void create_pending() override;
  45   void encode_pending(MonitorDBStore::TransactionRef t) override;
  46   version_t get_trim_to() const override;
  47
  48   void encode_full(MonitorDBStore::TransactionRef t) override { }
  49
  50   void tick() override;
  51
  52   /**
  53    * @} // HealthMonitor_Inherited_h
  54    */
  55 };
  56
  57 #endif // CEPH_HEALTH_MONITOR_H