ceph/src/tools/rbd/action/Pool.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #include "tools/rbd/ArgumentTypes.h"
   5 #include "tools/rbd/Shell.h"
   6 #include "tools/rbd/Utils.h"
   7 #include "include/stringify.h"
   8 #include "common/errno.h"
   9 #include "common/Formatter.h"
  10 #include <iostream>
  11 #include <boost/program_options.hpp>
  12
  13 namespace rbd {
  14 namespace action {
  15 namespace pool {
  16
  17 namespace at = argument_types;
  18 namespace po = boost::program_options;
  19
  20 void get_arguments_init(po::options_description *positional,
  21                         po::options_description *options) {
  22   at::add_pool_options(positional, options, false);
  23   options->add_options()
  24       ("force", po::bool_switch(),
  25        "force initialize pool for RBD use if registered by another application");
  26 }
  27
  28 int execute_init(const po::variables_map &vm,
  29                  const std::vector<std::string> &ceph_global_init_args) {
  30   std::string pool_name;
  31   size_t arg_index = 0;
  32   int r = utils::get_pool_and_namespace_names(vm, true, false, &pool_name,
  33                                               nullptr, &arg_index);
  34   if (r < 0) {
  35     return r;
  36   }
  37
  38   librados::Rados rados;
  39   librados::IoCtx io_ctx;
  40   r = utils::init(pool_name, "", &rados, &io_ctx);
  41   if (r < 0) {
  42     return r;
  43   }
  44
  45   librbd::RBD rbd;
  46   r = rbd.pool_init(io_ctx, vm["force"].as<bool>());
  47   if (r == -EOPNOTSUPP) {
  48     std::cerr << "rbd: luminous or later release required." << std::endl;
  49   } else if (r == -EPERM) {
  50     std::cerr << "rbd: pool already registered to a different application."
  51               << std::endl;
  52   } else if (r < 0) {
  53     std::cerr << "rbd: error registered application: " << cpp_strerror(r)
  54               << std::endl;
  55   }
  56
  57   return 0;
  58 }
  59
  60 void get_arguments_stats(po::options_description *positional,
  61                          po::options_description *options) {
  62   at::add_pool_options(positional, options, true);
  63   at::add_format_options(options);
  64 }
  65
  66 int execute_stats(const po::variables_map &vm,
  67                   const std::vector<std::string> &ceph_global_init_args) {
  68   std::string pool_name;
  69   std::string namespace_name;
  70   size_t arg_index = 0;
  71   int r = utils::get_pool_and_namespace_names(vm, true, false, &pool_name,
  72                                               &namespace_name, &arg_index);
  73   if (r < 0) {
  74     return r;
  75   }
  76
  77   at::Format::Formatter formatter;
  78   r = utils::get_formatter(vm, &formatter);
  79   if (r < 0) {
  80     return r;
  81   }
  82
  83   librados::Rados rados;
  84   librados::IoCtx io_ctx;
  85   r = utils::init(pool_name, namespace_name, &rados, &io_ctx);
  86   if (r < 0) {
  87     return r;
  88   }
  89
  90   librbd::RBD rbd;
  91   uint64_t image_count;
  92   uint64_t provisioned_bytes;
  93   uint64_t snap_count;
  94   uint64_t trash_count;
  95   uint64_t trash_provisioned_bytes;
  96   uint64_t trash_snap_count;
  97
  98   librbd::PoolStats pool_stats;
  99   pool_stats.add(RBD_POOL_STAT_OPTION_IMAGES, &image_count);
 100   pool_stats.add(RBD_POOL_STAT_OPTION_IMAGE_MAX_PROVISIONED_BYTES,
 101                  &provisioned_bytes);
 102   pool_stats.add(RBD_POOL_STAT_OPTION_IMAGE_SNAPSHOTS, &snap_count);
 103   pool_stats.add(RBD_POOL_STAT_OPTION_TRASH_IMAGES, &trash_count);
 104   pool_stats.add(RBD_POOL_STAT_OPTION_TRASH_MAX_PROVISIONED_BYTES,
 105                  &trash_provisioned_bytes);
 106   pool_stats.add(RBD_POOL_STAT_OPTION_TRASH_SNAPSHOTS, &trash_snap_count);
 107
 108   r = rbd.pool_stats_get(io_ctx, &pool_stats);
 109   if (r < 0) {
 110     std::cerr << "rbd: failed to query pool stats: " << cpp_strerror(r)
 111               << std::endl;
 112     return r;
 113   }
 114
 115   if (formatter) {
 116     formatter->open_object_section("stats");
 117     formatter->open_object_section("images");
 118     formatter->dump_unsigned("count", image_count);
 119     formatter->dump_unsigned("provisioned_bytes", provisioned_bytes);
 120     formatter->dump_unsigned("snap_count", snap_count);
 121     formatter->close_section();
 122     formatter->open_object_section("trash");
 123     formatter->dump_unsigned("count", trash_count);
 124     formatter->dump_unsigned("provisioned_bytes", trash_provisioned_bytes);
 125     formatter->dump_unsigned("snap_count", trash_snap_count);
 126     formatter->close_section();
 127     formatter->close_section();
 128     formatter->flush(std::cout);
 129   } else {
 130     std::cout << "Total Images: " << image_count;
 131     if (trash_count > 0) {
 132       std::cout << " (" << trash_count << " in trash)";
 133     }
 134     std::cout << std::endl;
 135
 136     std::cout << "Total Snapshots: " << snap_count;
 137     if (trash_count > 0) {
 138       std::cout << " (" << trash_snap_count << " in trash)";
 139     }
 140     std::cout << std::endl;
 141
 142     std::cout << "Provisioned Size: " << byte_u_t(provisioned_bytes);
 143     if (trash_count > 0) {
 144       std::cout << " (" << byte_u_t(trash_provisioned_bytes) << " in trash)";
 145     }
 146     std::cout << std::endl;
 147   }
 148
 149   return 0;
 150 }
 151
 152 Shell::Action init_action(
 153   {"pool", "init"}, {}, "Initialize pool for use by RBD.", "",
 154   &get_arguments_init, &execute_init);
 155 Shell::Action stat_action(
 156   {"pool", "stats"}, {}, "Display pool statistics.",
 157   "Note: legacy v1 images are not included in stats",
 158   &get_arguments_stats, &execute_stats);
 159
 160 } // namespace pool
 161 } // namespace action
 162 } // namespace rbd