[ceph.git] / ceph / src / test / rbd_mirror / test_ClusterWatcher.cc

// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "include/rados/librados.hpp"
#include "common/Cond.h"
#include "common/errno.h"
#include "common/Mutex.h"
#include "librbd/internal.h"
#include "librbd/api/Mirror.h"
#include "tools/rbd_mirror/ClusterWatcher.h"
#include "tools/rbd_mirror/ServiceDaemon.h"
#include "tools/rbd_mirror/Types.h"
#include "test/rbd_mirror/test_fixture.h"
#include "test/librados/test_cxx.h"
#include "test/librbd/test_support.h"
#include "gtest/gtest.h"
#include <boost/scope_exit.hpp>
#include <iostream>
#include <map>
#include <memory>
#include <set>

using rbd::mirror::ClusterWatcher;
using rbd::mirror::PeerSpec;
using rbd::mirror::RadosRef;
using std::map;
using std::set;
using std::string;

void register_test_cluster_watcher() {
}

class TestClusterWatcher : public ::rbd::mirror::TestFixture {
public:

  TestClusterWatcher() : m_lock("TestClusterWatcherLock")
  {
    m_cluster = std::make_shared<librados::Rados>();
    EXPECT_EQ("", connect_cluster_pp(*m_cluster));
  }

  ~TestClusterWatcher() override {
    m_cluster->wait_for_latest_osdmap();
    for (auto& pool : m_pools) {
      EXPECT_EQ(0, m_cluster->pool_delete(pool.c_str()));
    }
  }

  void SetUp() override {
    TestFixture::SetUp();
    m_service_daemon.reset(new rbd::mirror::ServiceDaemon<>(g_ceph_context,
                                                            m_cluster,
                                                            m_threads));
    m_cluster_watcher.reset(new ClusterWatcher(m_cluster, m_lock,
                                               m_service_daemon.get()));
  }

  void TearDown() override {
    m_service_daemon.reset();
    m_cluster_watcher.reset();
    TestFixture::TearDown();
  }

  void create_pool(bool enable_mirroring, const PeerSpec &peer,
                   string *uuid = nullptr, string *name=nullptr) {
    string pool_name = get_temp_pool_name("test-rbd-mirror-");
    ASSERT_EQ(0, m_cluster->pool_create(pool_name.c_str()));

    int64_t pool_id = m_cluster->pool_lookup(pool_name.c_str());
    ASSERT_GE(pool_id, 0);

    librados::IoCtx ioctx;
    ASSERT_EQ(0, m_cluster->ioctx_create2(pool_id, ioctx));
    ioctx.application_enable("rbd", true);

    m_pools.insert(pool_name);
    if (enable_mirroring) {
      ASSERT_EQ(0, librbd::api::Mirror<>::mode_set(ioctx,
                                                   RBD_MIRROR_MODE_POOL));

      std::string gen_uuid;
      ASSERT_EQ(0, librbd::api::Mirror<>::peer_add(ioctx,
                                                   uuid != nullptr ? uuid :
                                                                     &gen_uuid,
					           peer.cluster_name,
					           peer.client_name));
      m_pool_peers[pool_id].insert(peer);
    }
    if (name != nullptr) {
      *name = pool_name;
    }
  }

  void delete_pool(const string &name, const PeerSpec &peer) {
    int64_t pool_id = m_cluster->pool_lookup(name.c_str());
    ASSERT_GE(pool_id, 0);
    if (m_pool_peers.find(pool_id) != m_pool_peers.end()) {
      m_pool_peers[pool_id].erase(peer);
      if (m_pool_peers[pool_id].empty()) {
	m_pool_peers.erase(pool_id);
      }
    }
    m_pools.erase(name);
    ASSERT_EQ(0, m_cluster->pool_delete(name.c_str()));
  }

  void set_peer_config_key(const std::string& pool_name,
                           const PeerSpec &peer) {
    int64_t pool_id = m_cluster->pool_lookup(pool_name.c_str());
    ASSERT_GE(pool_id, 0);

    std::string json =
      "{"
        "\\\"mon_host\\\": \\\"" + peer.mon_host + "\\\", "
        "\\\"key\\\": \\\"" + peer.key + "\\\""
      "}";

    bufferlist in_bl;
    ASSERT_EQ(0, m_cluster->mon_command(
      "{"
        "\"prefix\": \"config-key set\","
        "\"key\": \"" RBD_MIRROR_PEER_CONFIG_KEY_PREFIX + stringify(pool_id) +
          "/" + peer.uuid + "\","
        "\"val\": \"" + json + "\"" +
      "}", in_bl, nullptr, nullptr));
  }

  void create_cache_pool(const string &base_pool, string *cache_pool_name) {
    bufferlist inbl;
    *cache_pool_name = get_temp_pool_name("test-rbd-mirror-");
    ASSERT_EQ(0, m_cluster->pool_create(cache_pool_name->c_str()));

    ASSERT_EQ(0, m_cluster->mon_command(
      "{\"prefix\": \"osd tier add\", \"pool\": \"" + base_pool +
      "\", \"tierpool\": \"" + *cache_pool_name +
      "\", \"force_nonempty\": \"--force-nonempty\" }",
      inbl, NULL, NULL));
    ASSERT_EQ(0, m_cluster->mon_command(
      "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + base_pool +
      "\", \"overlaypool\": \"" + *cache_pool_name + "\"}",
      inbl, NULL, NULL));
    ASSERT_EQ(0, m_cluster->mon_command(
      "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + *cache_pool_name +
      "\", \"mode\": \"writeback\"}",
      inbl, NULL, NULL));
    m_cluster->wait_for_latest_osdmap();
  }

  void remove_cache_pool(const string &base_pool, const string &cache_pool) {
    bufferlist inbl;
    // tear down tiers
    ASSERT_EQ(0, m_cluster->mon_command(
      "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + base_pool +
      "\"}",
      inbl, NULL, NULL));
    ASSERT_EQ(0, m_cluster->mon_command(
      "{\"prefix\": \"osd tier remove\", \"pool\": \"" + base_pool +
      "\", \"tierpool\": \"" + cache_pool + "\"}",
      inbl, NULL, NULL));
    m_cluster->wait_for_latest_osdmap();
    m_cluster->pool_delete(cache_pool.c_str());
  }

  void check_peers() {
    m_cluster_watcher->refresh_pools();
    Mutex::Locker l(m_lock);
    ASSERT_EQ(m_pool_peers, m_cluster_watcher->get_pool_peers());
  }

  RadosRef m_cluster;
  Mutex m_lock;
  unique_ptr<rbd::mirror::ServiceDaemon<>> m_service_daemon;
  unique_ptr<ClusterWatcher> m_cluster_watcher;

  set<string> m_pools;
  ClusterWatcher::PoolPeers m_pool_peers;
};

TEST_F(TestClusterWatcher, NoPools) {
  check_peers();
}

TEST_F(TestClusterWatcher, NoMirroredPools) {
  check_peers();
  create_pool(false, PeerSpec());
  check_peers();
  create_pool(false, PeerSpec());
  check_peers();
  create_pool(false, PeerSpec());
  check_peers();
}

TEST_F(TestClusterWatcher, ReplicatedPools) {
  PeerSpec site1("", "site1", "mirror1");
  PeerSpec site2("", "site2", "mirror2");
  string first_pool, last_pool;
  check_peers();
  create_pool(true, site1, &site1.uuid, &first_pool);
  check_peers();
  create_pool(false, PeerSpec());
  check_peers();
  create_pool(false, PeerSpec());
  check_peers();
  create_pool(false, PeerSpec());
  check_peers();
  create_pool(true, site2, &site2.uuid);
  check_peers();
  create_pool(true, site2, &site2.uuid);
  check_peers();
  create_pool(true, site2, &site2.uuid, &last_pool);
  check_peers();
  delete_pool(first_pool, site1);
  check_peers();
  delete_pool(last_pool, site2);
  check_peers();
}

TEST_F(TestClusterWatcher, CachePools) {
  PeerSpec site1("", "site1", "mirror1");
  string base1, base2, cache1, cache2;
  create_pool(true, site1, &site1.uuid, &base1);
  check_peers();

  create_cache_pool(base1, &cache1);
  BOOST_SCOPE_EXIT( base1, cache1, this_ ) {
    this_->remove_cache_pool(base1, cache1);
  } BOOST_SCOPE_EXIT_END;
  check_peers();

  create_pool(false, PeerSpec(), nullptr, &base2);
  create_cache_pool(base2, &cache2);
  BOOST_SCOPE_EXIT( base2, cache2, this_ ) {
    this_->remove_cache_pool(base2, cache2);
  } BOOST_SCOPE_EXIT_END;
  check_peers();
}

TEST_F(TestClusterWatcher, ConfigKey) {
  REQUIRE(!is_librados_test_stub(*m_cluster));

  std::string pool_name;
  check_peers();

  PeerSpec site1("", "site1", "mirror1");
  create_pool(true, site1, &site1.uuid, &pool_name);
  check_peers();

  PeerSpec site2("", "site2", "mirror2");
  site2.mon_host = "abc";
  site2.key = "xyz";
  create_pool(false, site2, &site2.uuid);
  set_peer_config_key(pool_name, site2);

  check_peers();
}
Commit	Line	Data
7c673cae FG	1	// -- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t --
	2	// vim: ts=8 sw=2 smarttab
	3	#include "include/rados/librados.hpp"
	4	#include "common/Cond.h"
	5	#include "common/errno.h"
	6	#include "common/Mutex.h"
	7	#include "librbd/internal.h"
	8	#include "librbd/api/Mirror.h"
	9	#include "tools/rbd_mirror/ClusterWatcher.h"
c07f9fc5	10	#include "tools/rbd_mirror/ServiceDaemon.h"
11fdf7f2	11	#include "tools/rbd_mirror/Types.h"
7c673cae	12	#include "test/rbd_mirror/test_fixture.h"
11fdf7f2 TL	13	#include "test/librados/test_cxx.h"
11fdf7f2 TL	14	#include "test/librbd/test_support.h"
7c673cae FG	15	#include "gtest/gtest.h"
	16	#include <boost/scope_exit.hpp>
	17	#include <iostream>
	18	#include <map>
	19	#include <memory>
	20	#include <set>
	21
	22	using rbd::mirror::ClusterWatcher;
11fdf7f2	23	using rbd::mirror::PeerSpec;
7c673cae FG	24	using rbd::mirror::RadosRef;
	25	using std::map;
	26	using std::set;
	27	using std::string;
	28
	29	void register_test_cluster_watcher() {
	30	}
	31
	32	class TestClusterWatcher : public ::rbd::mirror::TestFixture {
	33	public:
	34
	35	TestClusterWatcher() : m_lock("TestClusterWatcherLock")
	36	{
	37	m_cluster = std::make_shared<librados::Rados>();
	38	EXPECT_EQ("", connect_cluster_pp(*m_cluster));
7c673cae FG	39	}
	40
	41	~TestClusterWatcher() override {
	42	m_cluster->wait_for_latest_osdmap();
	43	for (auto& pool : m_pools) {
	44	EXPECT_EQ(0, m_cluster->pool_delete(pool.c_str()));
	45	}
	46	}
	47
c07f9fc5 FG	48	void SetUp() override {
	49	TestFixture::SetUp();
	50	m_service_daemon.reset(new rbd::mirror::ServiceDaemon<>(g_ceph_context,
	51	m_cluster,
	52	m_threads));
	53	m_cluster_watcher.reset(new ClusterWatcher(m_cluster, m_lock,
	54	m_service_daemon.get()));
	55	}
	56
	57	void TearDown() override {
	58	m_service_daemon.reset();
	59	m_cluster_watcher.reset();
	60	TestFixture::TearDown();
	61	}
	62
11fdf7f2	63	void create_pool(bool enable_mirroring, const PeerSpec &peer,
7c673cae FG	64	string uuid = nullptr, string name=nullptr) {
	65	string pool_name = get_temp_pool_name("test-rbd-mirror-");
	66	ASSERT_EQ(0, m_cluster->pool_create(pool_name.c_str()));
	67
	68	int64_t pool_id = m_cluster->pool_lookup(pool_name.c_str());
	69	ASSERT_GE(pool_id, 0);
c07f9fc5 FG	70
	71	librados::IoCtx ioctx;
	72	ASSERT_EQ(0, m_cluster->ioctx_create2(pool_id, ioctx));
	73	ioctx.application_enable("rbd", true);
	74
7c673cae FG	75	m_pools.insert(pool_name);
7c673cae FG	76	if (enable_mirroring) {
7c673cae FG	77	ASSERT_EQ(0, librbd::api::Mirror<>::mode_set(ioctx,
	78	RBD_MIRROR_MODE_POOL));
	79
	80	std::string gen_uuid;
	81	ASSERT_EQ(0, librbd::api::Mirror<>::peer_add(ioctx,
	82	uuid != nullptr ? uuid :
	83	&gen_uuid,
	84	peer.cluster_name,
	85	peer.client_name));
	86	m_pool_peers[pool_id].insert(peer);
	87	}
	88	if (name != nullptr) {
	89	*name = pool_name;
	90	}
	91	}
	92
11fdf7f2	93	void delete_pool(const string &name, const PeerSpec &peer) {
7c673cae FG	94	int64_t pool_id = m_cluster->pool_lookup(name.c_str());
	95	ASSERT_GE(pool_id, 0);
	96	if (m_pool_peers.find(pool_id) != m_pool_peers.end()) {
	97	m_pool_peers[pool_id].erase(peer);
	98	if (m_pool_peers[pool_id].empty()) {
	99	m_pool_peers.erase(pool_id);
	100	}
	101	}
	102	m_pools.erase(name);
	103	ASSERT_EQ(0, m_cluster->pool_delete(name.c_str()));
	104	}
	105
11fdf7f2 TL	106	void set_peer_config_key(const std::string& pool_name,
	107	const PeerSpec &peer) {
	108	int64_t pool_id = m_cluster->pool_lookup(pool_name.c_str());
	109	ASSERT_GE(pool_id, 0);
	110
	111	std::string json =
	112	"{"
	113	"\\\"mon_host\\\": \\\"" + peer.mon_host + "\\\", "
	114	"\\\"key\\\": \\\"" + peer.key + "\\\""
	115	"}";
	116
	117	bufferlist in_bl;
	118	ASSERT_EQ(0, m_cluster->mon_command(
	119	"{"
	120	"\"prefix\": \"config-key set\","
	121	"\"key\": \"" RBD_MIRROR_PEER_CONFIG_KEY_PREFIX + stringify(pool_id) +
	122	"/" + peer.uuid + "\","
	123	"\"val\": \"" + json + "\"" +
	124	"}", in_bl, nullptr, nullptr));
	125	}
	126
7c673cae FG	127	void create_cache_pool(const string &base_pool, string *cache_pool_name) {
	128	bufferlist inbl;
	129	*cache_pool_name = get_temp_pool_name("test-rbd-mirror-");
	130	ASSERT_EQ(0, m_cluster->pool_create(cache_pool_name->c_str()));
	131
	132	ASSERT_EQ(0, m_cluster->mon_command(
	133	"{\"prefix\": \"osd tier add\", \"pool\": \"" + base_pool +
	134	"\", \"tierpool\": \"" + *cache_pool_name +
	135	"\", \"force_nonempty\": \"--force-nonempty\" }",
	136	inbl, NULL, NULL));
	137	ASSERT_EQ(0, m_cluster->mon_command(
	138	"{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + base_pool +
	139	"\", \"overlaypool\": \"" + *cache_pool_name + "\"}",
	140	inbl, NULL, NULL));
	141	ASSERT_EQ(0, m_cluster->mon_command(
	142	"{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + *cache_pool_name +
	143	"\", \"mode\": \"writeback\"}",
	144	inbl, NULL, NULL));
	145	m_cluster->wait_for_latest_osdmap();
	146	}
	147
	148	void remove_cache_pool(const string &base_pool, const string &cache_pool) {
	149	bufferlist inbl;
	150	// tear down tiers
	151	ASSERT_EQ(0, m_cluster->mon_command(
	152	"{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + base_pool +
	153	"\"}",
	154	inbl, NULL, NULL));
	155	ASSERT_EQ(0, m_cluster->mon_command(
	156	"{\"prefix\": \"osd tier remove\", \"pool\": \"" + base_pool +
	157	"\", \"tierpool\": \"" + cache_pool + "\"}",
	158	inbl, NULL, NULL));
	159	m_cluster->wait_for_latest_osdmap();
	160	m_cluster->pool_delete(cache_pool.c_str());
	161	}
	162
	163	void check_peers() {
	164	m_cluster_watcher->refresh_pools();
	165	Mutex::Locker l(m_lock);
	166	ASSERT_EQ(m_pool_peers, m_cluster_watcher->get_pool_peers());
	167	}
	168
7c673cae	169	RadosRef m_cluster;
c07f9fc5 FG	170	Mutex m_lock;
c07f9fc5 FG	171	unique_ptr<rbd::mirror::ServiceDaemon<>> m_service_daemon;
7c673cae FG	172	unique_ptr<ClusterWatcher> m_cluster_watcher;
	173
	174	set<string> m_pools;
	175	ClusterWatcher::PoolPeers m_pool_peers;
	176	};
	177
	178	TEST_F(TestClusterWatcher, NoPools) {
	179	check_peers();
	180	}
	181
	182	TEST_F(TestClusterWatcher, NoMirroredPools) {
	183	check_peers();
11fdf7f2	184	create_pool(false, PeerSpec());
7c673cae	185	check_peers();
11fdf7f2	186	create_pool(false, PeerSpec());
7c673cae	187	check_peers();
11fdf7f2	188	create_pool(false, PeerSpec());
7c673cae FG	189	check_peers();
	190	}
	191
	192	TEST_F(TestClusterWatcher, ReplicatedPools) {
11fdf7f2 TL	193	PeerSpec site1("", "site1", "mirror1");
11fdf7f2 TL	194	PeerSpec site2("", "site2", "mirror2");
7c673cae FG	195	string first_pool, last_pool;
	196	check_peers();
	197	create_pool(true, site1, &site1.uuid, &first_pool);
	198	check_peers();
11fdf7f2	199	create_pool(false, PeerSpec());
7c673cae	200	check_peers();
11fdf7f2	201	create_pool(false, PeerSpec());
7c673cae	202	check_peers();
11fdf7f2	203	create_pool(false, PeerSpec());
7c673cae FG	204	check_peers();
	205	create_pool(true, site2, &site2.uuid);
	206	check_peers();
	207	create_pool(true, site2, &site2.uuid);
	208	check_peers();
	209	create_pool(true, site2, &site2.uuid, &last_pool);
	210	check_peers();
	211	delete_pool(first_pool, site1);
	212	check_peers();
	213	delete_pool(last_pool, site2);
	214	check_peers();
	215	}
	216
	217	TEST_F(TestClusterWatcher, CachePools) {
11fdf7f2	218	PeerSpec site1("", "site1", "mirror1");
7c673cae FG	219	string base1, base2, cache1, cache2;
	220	create_pool(true, site1, &site1.uuid, &base1);
	221	check_peers();
	222
	223	create_cache_pool(base1, &cache1);
	224	BOOST_SCOPE_EXIT( base1, cache1, this_ ) {
	225	this_->remove_cache_pool(base1, cache1);
	226	} BOOST_SCOPE_EXIT_END;
	227	check_peers();
	228
11fdf7f2	229	create_pool(false, PeerSpec(), nullptr, &base2);
7c673cae FG	230	create_cache_pool(base2, &cache2);
	231	BOOST_SCOPE_EXIT( base2, cache2, this_ ) {
	232	this_->remove_cache_pool(base2, cache2);
	233	} BOOST_SCOPE_EXIT_END;
	234	check_peers();
	235	}
11fdf7f2 TL	236
	237	TEST_F(TestClusterWatcher, ConfigKey) {
	238	REQUIRE(!is_librados_test_stub(*m_cluster));
	239
	240	std::string pool_name;
	241	check_peers();
	242
	243	PeerSpec site1("", "site1", "mirror1");
	244	create_pool(true, site1, &site1.uuid, &pool_name);
	245	check_peers();
	246
	247	PeerSpec site2("", "site2", "mirror2");
	248	site2.mon_host = "abc";
	249	site2.key = "xyz";
	250	create_pool(false, site2, &site2.uuid);
	251	set_peer_config_key(pool_name, site2);
	252
	253	check_peers();
	254	}