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generic-master-2025
oceanbase/mittest/logservice/test_ob_simple_log_config_change.cpp
HaHaJeff 01fe394aba add case owner for mittest/logservice
2024-11-20 11:14:44 +00:00

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// owner: yunlong.cb
// owner group: log
/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#include <cstdio>
#include <gtest/gtest.h>
#include <signal.h>
#include <share/scn.h>
#define private public
#include "logservice/palf/log_config_mgr.h"
#include "env/ob_simple_log_cluster_env.h"
#undef private
const std::string TEST_NAME = "config_change";
using namespace oceanbase::common;
using namespace oceanbase;
namespace oceanbase
{
using namespace logservice;
namespace unittest
{
class TestObSimpleLogClusterConfigChange : public ObSimpleLogClusterTestEnv
{
public:
TestObSimpleLogClusterConfigChange() : ObSimpleLogClusterTestEnv()
{}
};
int64_t ObSimpleLogClusterTestBase::member_cnt_ = 3;
int64_t ObSimpleLogClusterTestBase::node_cnt_ = 7;
std::string ObSimpleLogClusterTestBase::test_name_ = TEST_NAME;
bool ObSimpleLogClusterTestBase::need_add_arb_server_ = false;
bool ObSimpleLogClusterTestBase::need_shared_storage_ = false;
bool check_children_valid(const std::vector<PalfHandleImplGuard*> &palf_list, const LogLearnerList &all_learner)
{
int ret = OB_SUCCESS;
LogLearnerList all_children;
for (auto palf : palf_list) {
const LogLearnerList &self_children = palf->palf_handle_impl_->config_mgr_.children_;
int64_t children_cnt = self_children.get_member_number();
for (int i = 0; i < children_cnt; ++i) {
LogLearner tmp_server;
if (OB_FAIL(self_children.get_learner(i, tmp_server))) {
} else if (OB_FAIL(all_children.add_learner(tmp_server))) {
}
}
}
bool bool_ret = all_children.learner_addr_equal(all_learner);
PALF_LOG(INFO, "check_children", K(ret), K(all_children), K(all_learner));
return bool_ret;
}
bool check_parent(const std::vector<PalfHandleImplGuard*> &palf_list, const LogLearnerList &all_learner, const ObAddr &parent)
{
bool bool_ret = true;
for (auto palf : palf_list) {
const ObAddr &self = palf->palf_handle_impl_->self_;
if (all_learner.contains(self)) {
const ObAddr &my_parent = palf->palf_handle_impl_->config_mgr_.parent_;
if (my_parent.is_valid() && (my_parent == parent)) {
continue;
} else {
bool_ret = false;
break;
}
}
}
return bool_ret;
}
int check_log_sync(const std::vector<PalfHandleImplGuard*> &palf_list,
const common::ObMemberList &member_list,
const LogLearnerList &learner_list,
PalfHandleImplGuard &leader)
{
int ret = OB_SUCCESS;
const int64_t max_flushed_proposal_id = leader.palf_handle_impl_->sw_.max_flushed_log_pid_;
const LSN max_flushed_end_lsn = leader.palf_handle_impl_->sw_.max_flushed_end_lsn_;
PALF_LOG(INFO, "before check_log_sync", K(max_flushed_proposal_id), K(max_flushed_end_lsn));
for (auto palf : palf_list) {
const common::ObAddr parent_addr = palf->palf_handle_impl_->config_mgr_.parent_;
// for paxos member, log must sync with leader
// for learner, sync with parent's committed_end_lsn
const int64_t this_max_flushed_proposal_id = palf->palf_handle_impl_->sw_.max_flushed_log_pid_;
const LSN this_max_flushed_end_lsn = palf->palf_handle_impl_->sw_.max_flushed_end_lsn_;
const common::ObAddr self = palf->palf_handle_impl_->self_;
if (member_list.contains(self)) {
PALF_LOG(INFO, "before check", K(max_flushed_proposal_id), K(max_flushed_end_lsn), K(this_max_flushed_proposal_id),
K(this_max_flushed_end_lsn), K(self));
EXPECT_EQ(max_flushed_proposal_id, this_max_flushed_proposal_id);
EXPECT_EQ(max_flushed_end_lsn, this_max_flushed_end_lsn) \
<< max_flushed_end_lsn.val_ << "," << this_max_flushed_end_lsn.val_;
} else if (!learner_list.contains(self)) {
} else if (!parent_addr.is_valid()) {
ret = OB_ERR_UNEXPECTED;
break;
} else {
for (auto parent: palf_list) {
if (parent->palf_handle_impl_->self_ == parent_addr) {
const LSN parent_committed_end_lsn = parent->palf_handle_impl_->sw_.committed_end_lsn_;
EXPECT_EQ(parent_committed_end_lsn, this_max_flushed_end_lsn) \
<< parent_committed_end_lsn.val_ << "," << this_max_flushed_end_lsn.val_;
if (parent_committed_end_lsn != this_max_flushed_end_lsn) {
PALF_LOG(ERROR, "log not sync", K(parent_addr), "self", palf->palf_handle_impl_->self_,
K(parent_committed_end_lsn), K(this_max_flushed_end_lsn));
}
}
}
}
}
return ret;
}
MockLocCB loc_cb;
TEST_F(TestObSimpleLogClusterConfigChange, split_brain)
{
SET_CASE_LOG_FILE(TEST_NAME, "split_brain");
std::vector<PalfHandleImplGuard*> palf_list;
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
PALF_LOG(INFO, "begin test split_brain", K(id));
int64_t leader_idx = 0;
// 1. A, B, C
// 2. B block_net
// 3. A, C, D
// 4. A, D. delete C
// 5. unblock_net B, create new C
// 6. may be split-brain {B, C} {A, D}
{
PalfHandleImplGuard leader;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
PALF_LOG(INFO, "after submit_log");
const int64_t follower_B_idx = (leader_idx + 1);
const int64_t follower_C_idx = (leader_idx + 2);
const int64_t follower_D_idx = (leader_idx + 3);
// step 2
EXPECT_EQ(OB_SUCCESS, get_cluster()[follower_B_idx]->simple_close(false));
// step 3
const ObAddr follower_b_addr = get_cluster()[follower_B_idx]->get_addr();
PALF_LOG(INFO, "before remove member");
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(follower_b_addr, 1), 3, CONFIG_CHANGE_TIMEOUT));
PALF_LOG(INFO, "after remove member");
PalfHandleImplGuard new_leader;
int64_t new_leader_idx;
EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", loc_cb.leader_);
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(get_cluster()[follower_D_idx]->get_addr(), 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// step 4
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(get_cluster()[follower_C_idx]->get_addr(), 1), 3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, get_cluster()[follower_C_idx]->get_palf_env()->remove_palf_handle_impl(id));
// step 5
const int64_t node_id = follower_B_idx * 2 + get_node_idx_base();
EXPECT_EQ(OB_SUCCESS, get_cluster()[follower_B_idx]->simple_init(get_test_name(), follower_b_addr, node_id, tio_manager_, NULL, false));
EXPECT_EQ(OB_SUCCESS, get_cluster()[follower_B_idx]->simple_start(false));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
PalfBaseInfo palf_base_info;
IPalfHandleImpl* follower_C_handle = NULL;
palf_base_info.generate_by_default();
//PalfHandleImplGuard leader;
palf_base_info.prev_log_info_.scn_ = share::SCN::min_scn();
EXPECT_EQ(OB_SUCCESS, get_cluster()[follower_C_idx]->get_palf_env()->create_palf_handle_impl(id, palf::AccessMode::APPEND, palf_base_info, follower_C_handle));
get_cluster()[follower_C_idx]->get_palf_env()->revert_palf_handle_impl(follower_C_handle);
sleep(5);
// check if split-brain happens
int64_t leader_cnt = 0;
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
for (auto palf: palf_list) {
ObRole role;
palf::ObReplicaState unused_state;
palf->palf_handle_impl_->state_mgr_.get_role_and_state(role, unused_state);
if (role == LEADER) {
leader_cnt += 1;
}
}
EXPECT_EQ(leader_cnt, 1);
revert_cluster_palf_handle_guard(palf_list);
}
delete_paxos_group(id);
PALF_LOG(INFO, "end test split_brain", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_config_change_defensive)
{
SET_CASE_LOG_FILE(TEST_NAME, "config_change_defensive");
int ret = OB_SUCCESS;
PALF_LOG(INFO, "begin test_config_change_defensive");
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
{
int64_t leader_idx = 0;
PalfHandleImplGuard leader;
std::vector<PalfHandleImplGuard*> palf_list;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
common::ObMember dummy_member;
const LogConfigChangeArgs args(dummy_member, 1, STARTWORKING);
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
const int64_t lag_follower_idx = (leader_idx+1)%3;
const int64_t remove_follower_idx = (leader_idx+2)%3;
block_net(leader_idx, lag_follower_idx);
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
sleep(1);
// remove member who is in majority
EXPECT_EQ(OB_TIMEOUT, leader.palf_handle_impl_->remove_member(ObMember(palf_list[remove_follower_idx]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT / 2));
unblock_net(leader_idx, lag_follower_idx);
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[remove_follower_idx]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT));
int64_t new_leader_idx;
PalfHandleImplGuard new_leader;
EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[new_leader_idx]->get_addr());
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[remove_follower_idx]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 10, id));
// majority of members should be normal
palf_list[lag_follower_idx]->palf_handle_impl_->disable_vote(false);
EXPECT_EQ(OB_TIMEOUT, leader.palf_handle_impl_->remove_member(ObMember(palf_list[remove_follower_idx]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT / 2));
palf_list[lag_follower_idx]->palf_handle_impl_->enable_vote();
block_net(leader_idx, lag_follower_idx);
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
sleep(3);
// add member without any logs
// we will send config log to 3 before add_member(3, 4), so 3 can know who is leader and fetch log from it.
// so just comment this line, after leader forbit fetch log req that comes from node who is not follower or
// children of leader, we will uncomment this line
// EXPECT_EQ(OB_TIMEOUT, leader.add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, CONFIG_CHANGE_TIMEOUT / 2));
unblock_net(leader_idx, lag_follower_idx);
ASSERT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
//test add_member_with_check
EXPECT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->remove_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
LogConfigVersion invalid_config_version;
int64_t follower_idx = (new_leader_idx +1) % 3;
EXPECT_EQ(OB_STATE_NOT_MATCH, new_leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, invalid_config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_NOT_MASTER, palf_list[follower_idx]->palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(true, config_version.is_valid());
EXPECT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
revert_cluster_palf_handle_guard(palf_list);
}
delete_paxos_group(id);
PALF_LOG(INFO, "end test_config_change_defensive", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_change_replica_num)
{
SET_CASE_LOG_FILE(TEST_NAME, "change_replica_num");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_FAA(&palf_id_, 1);
PALF_LOG(INFO, "begin test_change_replica_num", K(id));
{
int64_t leader_idx = 0;
PalfHandleImplGuard leader;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
PalfHandleImplGuard new_leader;
int64_t new_leader_idx;
EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[new_leader_idx]->get_addr());
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// 3->5
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->change_replica_num(get_member_list(), 3, 5, CONFIG_CHANGE_TIMEOUT));
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(get_cluster()[4]->get_addr(), 1), 5, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(get_cluster()[5]->get_addr(), 1), 5, config_version, CONFIG_CHANGE_TIMEOUT));
common::ObMemberList curr_member_list;
int64_t curr_replica_num;
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(get_cluster()[4]->get_addr(), 1), 5, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(get_cluster()[5]->get_addr(), 1), 5, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_paxos_member_list(curr_member_list, curr_replica_num));
// 5->3
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->change_replica_num(curr_member_list, curr_replica_num, 3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
// 3->4
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_paxos_member_list(curr_member_list, curr_replica_num));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->change_replica_num(curr_member_list, curr_replica_num, 4, CONFIG_CHANGE_TIMEOUT));
}
delete_paxos_group(id);
PALF_LOG(INFO, "end test_change_replica_num", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_basic_config_change)
{
SET_CASE_LOG_FILE(TEST_NAME, "config_change");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
PALF_LOG(INFO, "begin test config change", K(id));
{
int64_t leader_idx = 0;
std::vector<PalfHandleImplGuard*> palf_list;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
PalfHandleImplGuard leader;
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
PalfHandleImplGuard new_leader;
int64_t new_leader_idx;
EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[new_leader_idx]->get_addr());
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
// add member when no log
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[(leader_idx+1)%3]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[(leader_idx+2)%3]->palf_handle_impl_->self_, 1), 1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->add_member(ObMember(palf_list[(leader_idx+1)%3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[(leader_idx+1)%3]->palf_handle_impl_->self_, 1), 2, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[(leader_idx+2)%3]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// add member when contains log
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[4]->palf_handle_impl_->self_, 1), 5, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// remove member
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[4]->palf_handle_impl_->self_, 1), 4, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
EXPECT_EQ(OB_STATE_NOT_MATCH, leader.palf_handle_impl_->replace_member(ObMember(palf_list[5]->palf_handle_impl_->self_, 1),
ObMember(palf_list[3]->palf_handle_impl_->self_, 1),
config_version,
CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
// replace member
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_member(ObMember(palf_list[5]->palf_handle_impl_->self_, 1),
ObMember(palf_list[3]->palf_handle_impl_->self_, 1),
config_version,
CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
// switch acceptor to learner
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_acceptor_to_learner(ObMember(palf_list[5]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
// add learner
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[4]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[6]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
revert_cluster_palf_handle_guard(palf_list);
}
delete_paxos_group(id);
PALF_LOG(INFO, "end test config change", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_basic_config_change_for_migration)
{
SET_CASE_LOG_FILE(TEST_NAME, "config_change_for_migration");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
PALF_LOG(INFO, "begin test config change", K(id));
{
int64_t leader_idx = 0;
std::vector<PalfHandleImplGuard*> palf_list;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
PalfHandleImplGuard leader;
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
PalfHandleImplGuard new_leader;
int64_t new_leader_idx;
EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[new_leader_idx]->get_addr());
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
const common::ObAddr &addr2 = get_cluster()[(leader_idx+2)%3]->get_addr();
const common::ObAddr &addr3 = get_cluster()[3]->get_addr();
const common::ObAddr &addr4 = get_cluster()[4]->get_addr();
const common::ObAddr &addr5 = get_cluster()[5]->get_addr();
// 1. replicate an FULL replica
{
PALF_LOG(INFO, "CASE1: replicate an FULL replica", K(id));
common::ObMember added_member = ObMember(addr3, 1);
added_member.set_migrating();
LogLearnerList learners;
learners.add_learner(LogLearner(added_member.get_server(), 1));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_member, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, learners));
// clean
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(added_member, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
// add again
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_member, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_learner_to_acceptor(added_member, 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
// member with flag do not exist
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member.get_server()));
EXPECT_EQ(4, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
// reentrant, do not get config_version again
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_learner_to_acceptor(added_member, 4, config_version, CONFIG_CHANGE_TIMEOUT));
// reset environment
added_member.reset_migrating();
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(added_member, 3, CONFIG_CHANGE_TIMEOUT));
}
// 2. migrate an FULL replica (addr2 -> addr3)
{
PALF_LOG(INFO, "CASE2: migrate an FULL replica", K(id));
common::ObMember added_member = ObMember(addr3, 1);
added_member.set_migrating();
common::ObMember replaced_member = ObMember(addr2, 1);
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_member, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
LogConfigChangeArgs args(added_member, 0, config_version, SWITCH_LEARNER_TO_ACCEPTOR_AND_NUM);
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->one_stage_config_change_(args, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member.get_server()));
EXPECT_EQ(4, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_member_with_learner(added_member, replaced_member, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
// member with flag do not exist
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member.get_server()));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(replaced_member.get_server()));
// reentrant and check
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_member_with_learner(added_member, replaced_member, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_member));
// member with flag do not exist
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member.get_server()));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(replaced_member.get_server()));
// reset environment
added_member.reset_migrating();
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_member(replaced_member, added_member, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(added_member.get_server()));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_memberlist_.contains(replaced_member.get_server()));
}
// 3. replicate an READONLY replica
{
PALF_LOG(INFO, "CASE3: replicate an READONLY replica", K(id));
// learner's addr must be different from members'
common::ObMember migrating_member = ObMember(addr2, 1);
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->add_learner(migrating_member, CONFIG_CHANGE_TIMEOUT));
common::ObMember added_migrating_learner = ObMember(addr3, 1);
common::ObMember added_learner = ObMember(addr3, 1);
added_migrating_learner.set_migrating();
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_migrating_learner, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_migrating_learner));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
ObMemberList added_learners, removed_learners;
EXPECT_EQ(OB_SUCCESS, added_learners.add_member(added_learner));
EXPECT_EQ(OB_SUCCESS, removed_learners.add_member(added_migrating_learner));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_learner));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_migrating_learner));
// reentrant and check
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_learner));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_migrating_learner));
// reset environment
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(added_learner, CONFIG_CHANGE_TIMEOUT));
}
// 4. migrate an READONLY replica, addr4 -> addr3
{
PALF_LOG(INFO, "CASE4: migrate an READONLY replica", K(id));
common::ObMember removed_learner = ObMember(addr4, 1);
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(removed_learner, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(removed_learner));
common::ObMember added_migrating_learner = ObMember(addr3, 1);
common::ObMember added_learner = ObMember(addr3, 1);
added_migrating_learner.set_migrating();
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_migrating_learner, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_migrating_learner));
EXPECT_EQ(3, leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.log_sync_replica_num_);
ObMemberList added_learners, removed_learners;
EXPECT_EQ(OB_SUCCESS, added_learners.add_member(added_learner));
EXPECT_EQ(OB_SUCCESS, removed_learners.add_member(added_migrating_learner));
EXPECT_EQ(OB_SUCCESS, removed_learners.add_member(removed_learner));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_learner));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_migrating_learner));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(removed_learner));
// reentrant and check
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_learner));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(added_migrating_learner));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(removed_learner));
// reset environment
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(added_learner, CONFIG_CHANGE_TIMEOUT));
}
// 5. replace_learners (addr3, addr4) -> (addr3, addr5)
{
PALF_LOG(INFO, "CASE5: replace_learners", K(id));
const common::ObMember member2 = ObMember(addr2, 1);
const common::ObMember member3 = ObMember(addr3, 1);
const common::ObMember member4 = ObMember(addr4, 1);
const common::ObMember member5 = ObMember(addr5, 1);
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(member3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(member4, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member3));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member4));
ObMemberList added_learners, removed_learners;
EXPECT_EQ(OB_SUCCESS, added_learners.add_member(member3));
EXPECT_EQ(OB_SUCCESS, added_learners.add_member(member5));
EXPECT_EQ(OB_SUCCESS, removed_learners.add_member(member2));
EXPECT_EQ(OB_SUCCESS, removed_learners.add_member(member4));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member3));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member5));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member2));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member4));
// reentrant and check
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member3));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member5));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member2));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member4));
// reset environment
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(member3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(member5, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member3));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(member5));
}
// 6. defensive
{
PALF_LOG(INFO, "CASE6: defensive", K(id));
const common::ObMember member2 = ObMember(addr2, 1);
const common::ObMember member3 = ObMember(addr3, 1);
const common::ObMember member4 = ObMember(addr4, 1);
const common::ObMember member5 = ObMember(addr5, 1);
common::ObMember migrating_member3 = member3;
migrating_member3.set_migrating();
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(migrating_member3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->add_learner(member3, CONFIG_CHANGE_TIMEOUT));
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->add_member(member3, 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(member3, CONFIG_CHANGE_TIMEOUT));
EXPECT_TRUE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(migrating_member3));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_learner(migrating_member3, CONFIG_CHANGE_TIMEOUT));
EXPECT_FALSE(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.learnerlist_.contains(migrating_member3));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(migrating_member3, CONFIG_CHANGE_TIMEOUT));
ObMemberList added_learners, removed_learners;
EXPECT_EQ(OB_SUCCESS, added_learners.add_member(member3));
EXPECT_EQ(OB_SUCCESS, removed_learners.add_member(member4));
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->replace_learners(added_learners, removed_learners, CONFIG_CHANGE_TIMEOUT));
common::ObMember migrating_member2 = member2;
migrating_member2.set_migrating();
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->remove_member(migrating_member2, 2, CONFIG_CHANGE_TIMEOUT));
}
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
revert_cluster_palf_handle_guard(palf_list);
}
delete_paxos_group(id);
PALF_LOG(INFO, "end test config change", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_replace_member)
{
SET_CASE_LOG_FILE(TEST_NAME, "replace_member");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
PALF_LOG(INFO, "begin test replace_member", K(id));
{
std::vector<PalfHandleImplGuard*> palf_list;
int64_t leader_idx = 0;
PalfHandleImplGuard leader;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
PalfHandleImplGuard new_leader;
int64_t new_leader_idx;
EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[new_leader_idx]->get_addr());
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// replace member when no log
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[(leader_idx+1)%3]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[(leader_idx+2)%3]->palf_handle_impl_->self_, 1), 1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->add_member(ObMember(palf_list[(leader_idx+1)%3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[(leader_idx+1)%3]->palf_handle_impl_->self_, 1), 2, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[(leader_idx+2)%3]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// add member when contains log
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[4]->palf_handle_impl_->self_, 1), 5, config_version, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// remove member
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[4]->palf_handle_impl_->self_, 1), 4, CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// replace member
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->replace_member(ObMember(palf_list[5]->palf_handle_impl_->self_, 1),
ObMember(palf_list[3]->palf_handle_impl_->self_, 1),
config_version,
CONFIG_CHANGE_TIMEOUT));
// switch acceptor to learner
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_acceptor_to_learner(ObMember(palf_list[5]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
// add learner
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[4]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[6]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
revert_cluster_palf_handle_guard(palf_list);
}
delete_paxos_group(id);
PALF_LOG(INFO, "end test replace_member", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, learner)
{
SET_CASE_LOG_FILE(TEST_NAME, "learner");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
int64_t leader_idx = 0;
int64_t log_ts = 1;
PalfHandleImplGuard leader;
LogLearnerList all_learner;
std::vector<PalfHandleImplGuard*> palf_list;
std::vector<ObRegion> region_list;
common::ObRegion default_region(DEFAULT_REGION_NAME);
region_list.push_back(ObRegion("BEIJING"));
region_list.push_back(ObRegion("SHANGHAI"));
region_list.push_back(ObRegion("TIANJIN"));
region_list.push_back(ObRegion("SHENZHEN"));
region_list.push_back(ObRegion("GUANGZHOU"));
const ObMemberList &node_list = get_node_list();
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
loc_cb.leader_ = get_cluster()[leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[leader_idx]->get_addr());
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
// case 1: set region and switch_acceptor_to_learner
// add_learner
for (int64_t i = 3; i < ObSimpleLogClusterTestBase::node_cnt_; ++i) {
PalfHandleImplGuard tmp_handle;
common::ObMember added_learner;
EXPECT_EQ(OB_SUCCESS, node_list.get_member_by_index(i, added_learner));
LogLearner learner(added_learner.get_server(), 1);
EXPECT_EQ(OB_SUCCESS, all_learner.add_learner(learner));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_learner, CONFIG_CHANGE_TIMEOUT));
}
// check children_cnt
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
// change region of one follower
bool has_change_region = false;
int64_t diff_region_follower_idx = -1;
int64_t another_follower_idx = -1;
for (int i = 0; i < ObSimpleLogClusterTestBase::member_cnt_; i++) {
const common::ObAddr addr = palf_list[i]->palf_handle_impl_->self_;
const bool not_leader = (addr != leader.palf_handle_impl_->self_);
if (!has_change_region && not_leader) {
get_cluster()[0]->get_locality_manager()->set_server_region(addr, region_list[0]);
has_change_region = true;
diff_region_follower_idx = i;
} else {
if (not_leader) {
another_follower_idx = i;
}
get_cluster()[0]->get_locality_manager()->set_server_region(addr, default_region);
}
}
for (auto palf_handle: palf_list) { palf_handle->palf_handle_impl_->update_self_region_(); }
// check children_cnt again
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
// after setting region of a follower, parents of all learners should be another follower
EXPECT_GE(another_follower_idx, 0);
EXPECT_LE(another_follower_idx, 2);
ObAddr curr_parent = palf_list[another_follower_idx]->palf_handle_impl_->self_;
EXPECT_UNTIL_EQ(true, check_parent(palf_list, all_learner, curr_parent));
// continue submitting log
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 20, id));
PALF_LOG(INFO, "all_learner", K(all_learner));
// EXPECT_EQ(OB_SUCCESS, check_log_sync(palf_list, get_member_list(), all_learner, leader));
// switch current unique parent to learner
EXPECT_EQ(OB_SUCCESS, all_learner.add_learner(LogLearner(curr_parent, 1)));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_acceptor_to_learner(ObMember(curr_parent, 1), 2, CONFIG_CHANGE_TIMEOUT));
// after switch follower 1 to learner, a learner will be registered to leader, and other learners will
// be registerd to this learner
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
// check learner topology
ObAddr leaderschild;
PalfHandleImplGuard leaderschild_handle;
LogLearnerList expect_children;
EXPECT_EQ(1, leader.palf_handle_impl_->config_mgr_.children_.get_member_number());
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->config_mgr_.children_.get_server_by_index(0, leaderschild));
EXPECT_EQ(OB_SUCCESS, get_palf_handle_guard(palf_list, leaderschild, leaderschild_handle));
expect_children = all_learner;
EXPECT_EQ(OB_SUCCESS, expect_children.remove_learner(leaderschild));
EXPECT_TRUE(expect_children.learner_addr_equal(leaderschild_handle.palf_handle_impl_->config_mgr_.children_));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 20, id));
// EXPECT_EQ(OB_SUCCESS, check_log_sync(palf_list, get_member_list(), all_learner, leader));
// learners' regions are different from paxos member, so parent of all learners is leader
// set regions
for (int64_t i = 3; i < ObSimpleLogClusterTestBase::node_cnt_; ++i) {
PalfHandleImplGuard tmp_handle;
common::ObMember learner;
EXPECT_EQ(OB_SUCCESS, node_list.get_member_by_index(i, learner));
get_cluster()[0]->get_locality_manager()->set_server_region(learner.get_server(), region_list[i-2]);
}
for (auto palf_handle: palf_list) { palf_handle->palf_handle_impl_->update_self_region_(); }
sleep(1);
// check children_cnt
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
EXPECT_UNTIL_EQ(true, check_parent(palf_list, all_learner, leader.palf_handle_impl_->self_));
// switch leader, after switching leader, the parent of all learners is the new leader
const int64_t new_leader_idx = diff_region_follower_idx;
PalfHandleImplGuard new_leader;
EXPECT_EQ(OB_SUCCESS, switch_leader(id, 0, new_leader));
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
EXPECT_UNTIL_EQ(true, check_parent(palf_list, all_learner, new_leader.palf_handle_impl_->self_));
revert_cluster_palf_handle_guard(palf_list);
PALF_LOG(INFO, "end test learner", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_config_change_lock)
{
SET_CASE_LOG_FILE(TEST_NAME, "config_change_lock");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
PALF_LOG(INFO, "begin test config change", K(id));
int64_t leader_idx = 0;
int64_t log_ts = 1;
PalfHandleImplGuard leader;
std::vector<PalfHandleImplGuard*> palf_list;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
ASSERT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
ASSERT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
ASSERT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
loc_cb.leader_ = get_cluster()[leader_idx]->get_addr();
PALF_LOG(INFO, "set leader for loc_cb", "leader", loc_cb.leader_);
int64_t lock_owner_out = -1;
bool lock_stat = false;
//ASSERT_EQ(OB_NOT_SUPPORTED, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
//ASSERT_EQ(OB_NOT_SUPPORTED, leader.palf_handle_impl_->try_lock_config_change(1, CONFIG_CHANGE_TIMEOUT));
//ASSERT_EQ(OB_NOT_SUPPORTED, leader.palf_handle_impl_->unlock_config_change(1, CONFIG_CHANGE_TIMEOUT));
//oceanbase::common::ObClusterVersion::get_instance().cluster_version_ = CLUSTER_VERSION_4_2_0_0;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(OB_INVALID_CONFIG_CHANGE_LOCK_OWNER, lock_owner_out);
ASSERT_EQ(false, lock_stat);
//invalid arguments
ASSERT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->try_lock_config_change(-1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->try_lock_config_change(1, 0));
ASSERT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->unlock_config_change(-1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_INVALID_ARGUMENT, leader.palf_handle_impl_->unlock_config_change(1, 0));
//test try lock
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->try_lock_config_change(1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->try_lock_config_change(1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_TRY_LOCK_CONFIG_CHANGE_CONFLICT, leader.palf_handle_impl_->try_lock_config_change(2, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(1, lock_owner_out);
ASSERT_EQ(true, lock_stat);
//test unlock
ASSERT_EQ(OB_STATE_NOT_MATCH, leader.palf_handle_impl_->unlock_config_change(2, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->unlock_config_change(1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->unlock_config_change(1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(1, lock_owner_out);
ASSERT_EQ(false, lock_stat);
//changing stat, test locking stat
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->try_lock_config_change(3, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(3, lock_owner_out);
ASSERT_EQ(true, lock_stat);
//block add_member
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
//ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->remove_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->remove_member(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->add_member(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->switch_acceptor_to_learner(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->switch_learner_to_acceptor(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_EAGAIN, leader.palf_handle_impl_->change_replica_num(get_member_list(), 3, 4, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->unlock_config_change(3, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(3, lock_owner_out);
ASSERT_EQ(false, lock_stat);
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[3]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_member(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_acceptor_to_learner(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 2, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_STATE_NOT_MATCH, leader.palf_handle_impl_->switch_learner_to_acceptor(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_learner_to_acceptor(ObMember(palf_list[2]->palf_handle_impl_->self_, 1), 3, config_version, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->change_replica_num(get_member_list(), 3, 4, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->change_replica_num(get_member_list(), 4, 3, CONFIG_CHANGE_TIMEOUT));
//switch leader
ASSERT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
revert_cluster_palf_handle_guard(palf_list);
PALF_LOG(INFO, "end test config change lock", K(id));
}
TEST_F(TestObSimpleLogClusterConfigChange, test_switch_leader)
{
SET_CASE_LOG_FILE(TEST_NAME, "switch_leader");
int ret = OB_SUCCESS;
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
PALF_LOG(INFO, "begin test switch_leader", K(id));
int64_t leader_idx = 0;
PalfHandleImplGuard leader;
std::vector<PalfHandleImplGuard*> palf_list;
oceanbase::common::ObClusterVersion::get_instance().cluster_version_ = CLUSTER_VERSION_4_2_0_0;
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, leader_idx, leader));
ASSERT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
// try lock config change
//
const int64_t follower_idx = (leader_idx+1)%3;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
int64_t lock_owner_out = -1;
bool lock_stat = false;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->try_lock_config_change(1, CONFIG_CHANGE_TIMEOUT));
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(1, lock_owner_out);
ASSERT_EQ(true, lock_stat);
PalfHandleImplGuard new_leader;
const int64_t new_leader_idx = (leader_idx+1)%3;
PalfHandleImplGuard &follower = *palf_list[new_leader_idx];
ASSERT_EQ(OB_NOT_MASTER, follower.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
EXPECT_EQ(OB_SUCCESS, switch_leader(id, new_leader_idx, new_leader));
sleep(5);
ObRole role;
int64_t curr_proposal_id = 0;
bool is_pending_stat = false;
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_role(role, curr_proposal_id, is_pending_stat));
EXPECT_EQ(ObRole::FOLLOWER, role);
lock_owner_out = -1;
lock_stat = false;
ASSERT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(1, lock_owner_out);
ASSERT_EQ(true, lock_stat);
EXPECT_EQ(OB_SUCCESS, submit_log(new_leader, 200, id));
ASSERT_EQ(OB_SUCCESS, new_leader.palf_handle_impl_->unlock_config_change(1, CONFIG_CHANGE_TIMEOUT));
sleep(3);
//switch leader during lock_config_change
LogConfigChangeArgs args(2, ConfigChangeLockType::LOCK_PAXOS_MEMBER_CHANGE, TRY_LOCK_CONFIG_CHANGE);
LogConfigVersion config_version;
const int64_t proposal_id = new_leader.palf_handle_impl_->state_mgr_.get_proposal_id();
const int64_t leader_epoch = new_leader.palf_handle_impl_->state_mgr_.get_leader_epoch();
ASSERT_EQ(OB_EAGAIN, new_leader.palf_handle_impl_->config_mgr_.change_config(args, proposal_id, leader_epoch, config_version));
ASSERT_EQ(LogConfigMgr::ConfigChangeState::CHANGING, new_leader.palf_handle_impl_->config_mgr_.state_);
ASSERT_EQ(OB_EAGAIN, new_leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
//block_net
const int64_t follower_idx1 = (new_leader_idx+1)%3;
const int64_t follower_idx2 = (new_leader_idx+2)%3;
block_net(follower_idx1, new_leader_idx, true);
block_net(follower_idx2, new_leader_idx, true);
//send info to follower
ASSERT_EQ(OB_EAGAIN, new_leader.palf_handle_impl_->config_mgr_.change_config(args, proposal_id, leader_epoch, config_version));
sleep(1);
unblock_net(follower_idx1, new_leader_idx);
unblock_net(follower_idx2, new_leader_idx);
PalfHandleImplGuard old_leader;
EXPECT_EQ(OB_SUCCESS, switch_leader(id, leader_idx, old_leader));
EXPECT_EQ(OB_SUCCESS, old_leader.palf_handle_impl_->get_role(role, curr_proposal_id, is_pending_stat));
EXPECT_EQ(ObRole::LEADER, role);
//check config change stat
sleep(1);
ASSERT_EQ(OB_SUCCESS, old_leader.palf_handle_impl_->get_config_change_lock_stat(lock_owner_out, lock_stat));
ASSERT_EQ(2, lock_owner_out);
ASSERT_EQ(true, lock_stat);
revert_cluster_palf_handle_guard(palf_list);
PALF_LOG(INFO, "end test switch_leader", K(id));
}
// 1. 3F(beijing), 4R(shanghai)
// 2. the client submits logs to F replicas, but R replicas can not receive logs
// 3. switch a R to F, the R replica must be one of the children of another R.
// Due to step 2, the R will not receive the reconfiguration log
// 4. enable the remaining R re-register parents
// 5. check loop between R replicas
TEST_F(TestObSimpleLogClusterConfigChange, learner_loop)
{
SET_CASE_LOG_FILE(TEST_NAME, "learner_loop");
int ret = OB_SUCCESS;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
int64_t leader_idx = 0;
PalfHandleImplGuard leader;
LogLearnerList all_learner;
const ObMemberList &node_list = get_node_list();
std::vector<PalfHandleImplGuard*> palf_list;
common::ObRegion beijing_region("BEIJING");
common::ObRegion shanghai_region("SHANGHAI");
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
loc_cb.leader_ = get_cluster()[leader_idx]->get_addr();
// 1. init
for (int64_t i = 3; i < ObSimpleLogClusterTestBase::node_cnt_; ++i) {
common::ObMember added_learner;
EXPECT_EQ(OB_SUCCESS, node_list.get_member_by_index(i, added_learner));
LogLearner learner(added_learner.get_server(), 1);
EXPECT_EQ(OB_SUCCESS, all_learner.add_learner(learner));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(added_learner, CONFIG_CHANGE_TIMEOUT));
}
// set region, version 42x
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++) {
const common::ObAddr addr = palf_list[i]->palf_handle_impl_->self_;
if (leader.palf_handle_impl_->config_mgr_.alive_paxos_memberlist_.contains(addr)) {
get_cluster()[0]->get_locality_manager()->set_server_region(addr, beijing_region);
} else {
get_cluster()[0]->get_locality_manager()->set_server_region(addr, shanghai_region);
}
}
for (auto palf_handle: palf_list) { palf_handle->palf_handle_impl_->update_self_region_(); }
// set region, version 421, master
/*
LogMemberRegionMap region_map;
EXPECT_EQ(OB_SUCCESS, region_map.init("localmap", OB_MAX_MEMBER_NUMBER));
for (int i = 0; i < ObSimpleLogClusterTestBase::member_cnt_; i++) {
const common::ObAddr addr = palf_list[i]->palf_handle_impl_->self_;
if (leader.palf_handle_impl_->config_mgr_.alive_paxos_memberlist_.contains(addr)) {
EXPECT_EQ(OB_SUCCESS, palf_list[i]->palf_handle_impl_->set_region(beijing_region));
region_map.insert(addr, beijing_region);
} else {
EXPECT_EQ(OB_SUCCESS, palf_list[i]->palf_handle_impl_->set_region(shanghai_region));
region_map.insert(addr, shanghai_region);
}
}
*/
// notify leader region of follower i has changed
// EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->set_paxos_member_region_map(region_map));
// check topo
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
EXPECT_UNTIL_EQ(1, leader.palf_handle_impl_->config_mgr_.children_.get_member_number());
EXPECT_UNTIL_EQ(0, palf_list[1]->palf_handle_impl_->config_mgr_.children_.get_member_number());
EXPECT_UNTIL_EQ(0, palf_list[2]->palf_handle_impl_->config_mgr_.children_.get_member_number());
ObAddr same_parent, any_child;
int64_t any_child_idx = -1;
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++)
{
const common::ObAddr addr = palf_list[i]->palf_handle_impl_->self_;
if (leader.palf_handle_impl_->config_mgr_.children_.contains(addr)) {
EXPECT_UNTIL_EQ(palf_list[i]->palf_handle_impl_->config_mgr_.parent_, leader.palf_handle_impl_->self_);
same_parent = addr;
PALF_LOG(INFO, "SAME_PARENT", K(id), K(addr), K(same_parent));
break;
}
}
EXPECT_TRUE(same_parent.is_valid());
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++)
{
const common::ObAddr addr = palf_list[i]->palf_handle_impl_->self_;
if (all_learner.contains(addr) && addr != same_parent) {
EXPECT_UNTIL_EQ(same_parent, palf_list[i]->palf_handle_impl_->config_mgr_.parent_);
any_child = addr;
any_child_idx = i;
PALF_LOG(INFO, "CHECK_PARENT", K(id), K(addr), K(same_parent));
}
}
// 2. replicating logs to all F replicas
EXPECT_NE(-1, any_child_idx);
EXPECT_UNTIL_EQ(leader.palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.config_version_,
palf_list[any_child_idx]->palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.config_version_);
EXPECT_UNTIL_EQ(leader.palf_handle_impl_->get_max_lsn().val_, leader.palf_handle_impl_->get_end_lsn().val_);
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++) {
const common::ObAddr &addr = palf_list[i]->palf_handle_impl_->self_;
if (true == all_learner.contains(addr)) {
block_pcode(i, ObRpcPacketCode::OB_LOG_PUSH_REQ);
}
}
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
EXPECT_UNTIL_EQ(leader.palf_handle_impl_->get_max_lsn().val_, leader.palf_handle_impl_->get_end_lsn().val_);
// 3. switch a R replica to F
LogConfigVersion config_version;
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_learner_to_acceptor(ObMember(any_child, -1), 4, config_version, CONFIG_CHANGE_TIMEOUT));
// 4. enable the remaining R re-register parents
leader.palf_handle_impl_->config_mgr_.children_.reset();
for (auto palf_handle: palf_list) {
const common::ObAddr addr = palf_handle->palf_handle_impl_->self_;
if (true == all_learner.contains(addr) && addr != any_child) {
palf_handle->palf_handle_impl_->config_mgr_.retire_parent_(LogConfigMgr::RetireParentReason::SELF_REGION_CHANGED);
palf_handle->palf_handle_impl_->config_mgr_.register_parent_(LogConfigMgr::RegisterParentReason::FIRST_REGISTER);
}
}
// 5. check loop
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++) {
const common::ObAddr &addr = palf_list[i]->palf_handle_impl_->self_;
if (true == all_learner.contains(addr)) {
block_pcode(i, ObRpcPacketCode::OB_LOG_PUSH_REQ);
}
}
sleep(2);
EXPECT_EQ(OB_SUCCESS, all_learner.remove_learner(any_child));
for (auto palf_handle: palf_list) {
const common::ObAddr addr = palf_handle->palf_handle_impl_->self_;
if (true == all_learner.contains(addr)) {
EXPECT_UNTIL_EQ(true, palf_handle->palf_handle_impl_->config_mgr_.parent_.is_valid());
EXPECT_UNTIL_EQ(false, palf_handle->palf_handle_impl_->config_mgr_.children_.contains(palf_handle->palf_handle_impl_->config_mgr_.parent_));
}
}
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++) {
unblock_pcode(i, ObRpcPacketCode::OB_LOG_PUSH_REQ);
}
revert_cluster_palf_handle_guard(palf_list);
PALF_LOG(INFO, "end test learner_loop", K(id));
}
// 1. 3 paxos member (A, B ,C), A is the leader. D is a learner, C is the parent of D.
// 2. block_net A <-> C, submit logs, logs of C and D are behind from A
// 3. remove C, or the step 4 cannot be executed succcessfully
// 4. switch D from learner to acceptor, D can not accept the reconfig log because it miss some logs
// 5. remove B
TEST_F(TestObSimpleLogClusterConfigChange, switch_lagged_learner_to_acceptor)
{
SET_CASE_LOG_FILE(TEST_NAME, "switch_lagged_learner_to_acceptor");
int ret = OB_SUCCESS;
const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000L; // 10s
const int64_t id = ATOMIC_AAF(&palf_id_, 1);
int64_t leader_idx = 0;
PalfHandleImplGuard leader;
LogLearnerList all_learner;
const ObMemberList &node_list = get_node_list();
std::vector<PalfHandleImplGuard*> palf_list;
common::ObRegion beijing_region("BEIJING");
common::ObRegion shanghai_region("SHANGHAI");
EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, &loc_cb, leader_idx, leader));
EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
// 1. add a learner, idx = 3
const int64_t learner_idx = 3;
const int64_t followerc_idx = (leader_idx + 1) % 3;
const int64_t followerb_idx = (leader_idx + 2) % 3;
const ObAddr followerc_addr = get_cluster()[followerc_idx]->get_addr();
const ObAddr followerb_addr = get_cluster()[followerb_idx]->get_addr();
// set region, beijing(leader, follower b), shanghai(follower c, learner)
for (int i = 0; i < ObSimpleLogClusterTestBase::node_cnt_; i++) {
const common::ObAddr addr = palf_list[i]->palf_handle_impl_->self_;
if (leader.palf_handle_impl_->config_mgr_.alive_paxos_memberlist_.contains(addr) &&
i != followerc_idx) {
get_cluster()[0]->get_locality_manager()->set_server_region(addr, beijing_region);
} else {
get_cluster()[0]->get_locality_manager()->set_server_region(addr, shanghai_region);
}
}
for (auto palf_handle: palf_list) { palf_handle->palf_handle_impl_->update_self_region_(); }
// add D to learner_list
common::ObMember learner;
EXPECT_EQ(OB_SUCCESS, node_list.get_member_by_index(learner_idx, learner));
EXPECT_EQ(OB_SUCCESS, all_learner.add_learner(LogLearner(learner.get_server(), 1)));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->add_learner(learner, CONFIG_CHANGE_TIMEOUT));
// check topo
EXPECT_UNTIL_EQ(true, check_children_valid(palf_list, all_learner));
EXPECT_UNTIL_EQ(0, leader.palf_handle_impl_->config_mgr_.children_.get_member_number());
EXPECT_UNTIL_EQ(0, palf_list[followerb_idx]->palf_handle_impl_->config_mgr_.children_.get_member_number());
EXPECT_UNTIL_EQ(1, palf_list[followerc_idx]->palf_handle_impl_->config_mgr_.children_.get_member_number());
EXPECT_UNTIL_EQ(followerc_addr, palf_list[learner_idx]->palf_handle_impl_->config_mgr_.parent_);
loc_cb.leader_ = get_cluster()[leader_idx]->get_addr();
// 2. remove C, or the step 4 cannot be executed succcessfully
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(followerc_addr, 1), 2, CONFIG_CHANGE_TIMEOUT));
LogConfigVersion leader_config_version;
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(leader_config_version));
// ensure the learner can be added successfully
EXPECT_EQ(leader_config_version, palf_list[learner_idx]->palf_handle_impl_->config_mgr_.log_ms_meta_.curr_.config_.config_version_);
// 3. block_net between leader and followerc, submit logs
block_net(leader_idx, followerc_idx);
EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
EXPECT_UNTIL_EQ(leader.palf_handle_impl_->get_max_lsn().val_, leader.palf_handle_impl_->get_end_lsn().val_);
// 4. switch D from learner to acceptor, D can not accept the reconfig log because it miss some logs
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->get_config_version(leader_config_version));
EXPECT_EQ(OB_SUCCESS, leader.palf_handle_impl_->switch_learner_to_acceptor(learner, 3, leader_config_version, CONFIG_CHANGE_TIMEOUT));
// 5. remove B
ASSERT_EQ(OB_SUCCESS, leader.palf_handle_impl_->remove_member(ObMember(followerb_addr, 1), 2, CONFIG_CHANGE_TIMEOUT));
unblock_net(leader_idx, followerc_idx);
leader.reset();
revert_cluster_palf_handle_guard(palf_list);
PALF_LOG(INFO, "end switch_lagged_learner_to_acceptor", K(id));
}
} // end unittest
} // end oceanbase
int main(int argc, char **argv)
{
RUN_SIMPLE_LOG_CLUSTER_TEST(TEST_NAME);
}
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