ceph/src/mon/DataHealthService.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_MON_DATA_HEALTH_SERVICE_H
  15 #define CEPH_MON_DATA_HEALTH_SERVICE_H
  16
  17 #include <errno.h>
  18
  19 #include "include/types.h"
  20 #include "mon/mon_types.h"
  21 #include "mon/HealthService.h"
  22 #include "common/config.h"
  23 #include "global/signal_handler.h"
  24
  25 struct MMonHealth;
  26 namespace ceph { class Formatter; }
  27
  28
  29 class DataHealthService :
  30   public HealthService
  31 {
  32   map<entity_inst_t,DataStats> stats;
  33   int last_warned_percent;
  34
  35   void handle_tell(MonOpRequestRef op);
  36   int update_store_stats(DataStats &ours);
  37   int update_stats();
  38   void share_stats();
  39
  40   void force_shutdown() {
  41     generic_dout(0) << "** Shutdown via Data Health Service **" << dendl;
  42     queue_async_signal(SIGINT);
  43   }
  44
  45 protected:
  46   void service_tick() override;
  47   bool service_dispatch_op(MonOpRequestRef op) override;
  48   void service_shutdown() override { }
  49
  50   void start_epoch() override;
  51   void finish_epoch() override { }
  52   void cleanup() override { }
  53
  54 public:
  55   DataHealthService(Monitor *m) :
  56     HealthService(m),
  57     last_warned_percent(0)
  58   {
  59     set_update_period(g_conf->mon_health_data_update_interval);
  60   }
  61   ~DataHealthService() override { }
  62
  63   void init() override {
  64     generic_dout(20) << "data_health " << __func__ << dendl;
  65     start_tick();
  66   }
  67
  68   void get_health(
  69     list<pair<health_status_t,string> >& summary,
  70     list<pair<health_status_t,string> > *detail) override;
  71
  72   int get_type() override {
  73     return HealthService::SERVICE_HEALTH_DATA;
  74   }
  75
  76   string get_name() const override {
  77     return "data_health";
  78   }
  79 };
  80
  81 #endif /* CEPH_MON_DATA_HEALTH_SERVICE_H */