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// -*- 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/ceph_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_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_site_add(
ioctx, uuid != nullptr ? uuid : &gen_uuid,
RBD_MIRROR_PEER_DIRECTION_RX_TX,
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();
std::lock_guard l{m_lock};
ASSERT_EQ(m_pool_peers, m_cluster_watcher->get_pool_peers());
}
RadosRef m_cluster;
ceph::mutex m_lock = ceph::make_mutex("TestClusterWatcherLock");
std::unique_ptr<rbd::mirror::ServiceDaemon<>> m_service_daemon;
std::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();
}
TEST_F(TestClusterWatcher, SiteName) {
REQUIRE(!is_librados_test_stub(*m_cluster));
std::string site_name;
librbd::RBD rbd;
ASSERT_EQ(0, rbd.mirror_site_name_get(*m_cluster, &site_name));
m_cluster_watcher->refresh_pools();
std::lock_guard l{m_lock};
ASSERT_EQ(site_name, m_cluster_watcher->get_site_name());
}
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