299 lines
13 KiB
C++
299 lines
13 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#include <cstdio>
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#include <gtest/gtest.h>
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#include <signal.h>
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#include "share/scn.h"
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#define private public
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#include "env/ob_simple_log_cluster_env.h"
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#undef private
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const std::string TEST_NAME = "access_mode";
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using namespace oceanbase::common;
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using namespace oceanbase;
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namespace oceanbase
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{
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using namespace logservice;
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using namespace palf;
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namespace unittest
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{
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class TestObSimpleLogClusterAccessMode : public ObSimpleLogClusterTestEnv
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{
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public:
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TestObSimpleLogClusterAccessMode() : ObSimpleLogClusterTestEnv()
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{}
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};
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int64_t ObSimpleLogClusterTestBase::member_cnt_ = 3;
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int64_t ObSimpleLogClusterTestBase::node_cnt_ = 4;
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std::string ObSimpleLogClusterTestBase::test_name_ = TEST_NAME;
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// 1. basic change_access_mode
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// 2. change_access_mode(block a follower), then switch this follower to leader
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// 3. change_access_mode when leader's net is blocked
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// 4. change_access_mode, then add_member
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// 5. prev logs have slid, and pid of prev logs is different from current pid
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TEST_F(TestObSimpleLogClusterAccessMode, basic_change_access_mode)
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{
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SET_CASE_LOG_FILE(TEST_NAME, "basic_change_access_mode");
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int ret = OB_SUCCESS;
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const int64_t id = ATOMIC_AAF(&palf_id_, 1);
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PALF_LOG(INFO, "begin test basic_change_access_mode", K(id));
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int64_t leader_idx = 0;
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int64_t ref_ts_ns = common::ObTimeUtility::current_time_ns() + 1800 * 1000L * 1000L * 1000L;
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share::SCN ref_scn;
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ref_scn.convert_for_logservice(ref_ts_ns);
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PalfHandleGuard leader;
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const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000 * 1000L; // 10s
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EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, leader_idx, leader));
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
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AccessMode curr_access_mode;
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int64_t mode_version, curr_proposal_id;
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ObRole unused_role;
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(AccessMode::APPEND, curr_access_mode);
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// test can not submit log in MODE_PREPARE
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EXPECT_EQ(OB_EAGAIN, leader.palf_handle_.palf_handle_impl_->mode_mgr_.change_access_mode(mode_version, palf::AccessMode::RAW_WRITE, share::SCN::min_scn()));
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// cannot submit_log in prepare state
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EXPECT_EQ(OB_NOT_MASTER, submit_log(leader, 1, id));
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int tmp_ret = OB_EAGAIN;
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while(OB_EAGAIN == tmp_ret) {
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tmp_ret = leader.palf_handle_.palf_handle_impl_->mode_mgr_.change_access_mode(mode_version, palf::AccessMode::RAW_WRITE, share::SCN::min_scn());
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usleep(10 * 1000);
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}
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(AccessMode::RAW_WRITE, curr_access_mode);
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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EXPECT_EQ(OB_SUCCESS, leader.change_access_mode(curr_proposal_id, mode_version, palf::AccessMode::FLASHBACK, share::SCN::min_scn()));
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EXPECT_EQ(OB_NOT_MASTER, submit_log(leader, 1, id));
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// base_ts: 0.5 hour later
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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EXPECT_EQ(OB_SUCCESS, leader.change_access_mode(curr_proposal_id, mode_version, AccessMode::APPEND, ref_scn));
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std::vector<LSN> lsn_array;
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std::vector<SCN> scn_arrary;
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 50, id, lsn_array, scn_arrary));
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for (auto scn : scn_arrary)
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{
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EXPECT_GT(scn, ref_scn);
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}
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// 40 minutes later
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ref_ts_ns = common::ObTimeUtility::current_time_ns() + 2400L * 1000L * 1000L * 1000L;
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ref_scn.convert_for_logservice(ref_ts_ns);
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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// can not APPEND -> APPEND
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EXPECT_EQ(OB_STATE_NOT_MATCH, leader.change_access_mode(curr_proposal_id, mode_version, AccessMode::APPEND, ref_scn));
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// can not APPEND -> FLASHBACK
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EXPECT_EQ(OB_STATE_NOT_MATCH, leader.change_access_mode(curr_proposal_id, mode_version, AccessMode::FLASHBACK, ref_scn));
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EXPECT_EQ(OB_SUCCESS, leader.change_access_mode(curr_proposal_id, mode_version, AccessMode::RAW_WRITE, ref_scn));
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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EXPECT_EQ(OB_SUCCESS, leader.change_access_mode(curr_proposal_id, mode_version, AccessMode::APPEND, ref_scn));
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lsn_array.clear();
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scn_arrary.clear();
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 50, id, lsn_array, scn_arrary));
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for (auto scn : scn_arrary)
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{
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EXPECT_GT(scn, ref_scn);
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}
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PALF_LOG(INFO, "end test basic_change_access_mode", K(id));
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}
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TEST_F(TestObSimpleLogClusterAccessMode, switch_leader1)
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{
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SET_CASE_LOG_FILE(TEST_NAME, "switch_leader1");
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int ret = OB_SUCCESS;
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const int64_t id = ATOMIC_AAF(&palf_id_, 1);
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PALF_LOG(INFO, "begin test switch_leader1", K(id));
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int64_t leader_idx = 0;
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PalfHandleGuard leader;
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EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, leader_idx, leader));
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
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AccessMode curr_access_mode;
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int64_t mode_version, curr_proposal_id;
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ObRole unused_role;
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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EXPECT_EQ(AccessMode::APPEND, curr_access_mode);
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const int64_t follower1_idx = (leader_idx+1)%3;
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const int64_t follower2_idx = (leader_idx+2)%3;
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block_net(leader_idx, follower1_idx);
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EXPECT_EQ(OB_SUCCESS, leader.change_access_mode(curr_proposal_id, mode_version, palf::AccessMode::RAW_WRITE, share::SCN::min_scn()));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(curr_proposal_id, mode_version);
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block_net(leader_idx, follower2_idx);
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sleep(10);
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// a follower will be leader
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while (true) {
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PalfHandleGuard new_leader;
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int64_t new_leader_idx;
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int64_t mode_version_after_reconfirm = -1;
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EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
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if (new_leader_idx != leader_idx) {
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EXPECT_EQ(OB_SUCCESS, new_leader.get_access_mode(mode_version_after_reconfirm, curr_access_mode));
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EXPECT_EQ(AccessMode::RAW_WRITE, curr_access_mode);
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// mode_version won't be changed after reconfirming
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EXPECT_EQ(mode_version_after_reconfirm, mode_version);
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EXPECT_EQ(OB_SUCCESS, new_leader.get_role(unused_role, curr_proposal_id));
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EXPECT_GT(curr_proposal_id, mode_version_after_reconfirm);
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break;
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} else {
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sleep(1);
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}
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}
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unblock_net(leader_idx, follower1_idx);
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unblock_net(leader_idx, follower2_idx);
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PALF_LOG(INFO, "end test switch_leader1", K(id));
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}
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TEST_F(TestObSimpleLogClusterAccessMode, add_member)
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{
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SET_CASE_LOG_FILE(TEST_NAME, "add_member");
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MockLocCB loc_cb;
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int ret = OB_SUCCESS;
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const int64_t id = ATOMIC_AAF(&palf_id_, 1);
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PALF_LOG(INFO, "begin test add_member", K(id));
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{
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int64_t leader_idx = 0;
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PalfHandleGuard leader;
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std::vector<PalfHandleGuard*> palf_list;
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const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000 * 1000L; // 10s
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EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, leader_idx, leader));
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
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// set leader's region is different from follower, learner will
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// register itself to leader
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std::vector<ObRegion> region_list;
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LogMemberRegionMap region_map;
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common::ObRegion default_region(DEFAULT_REGION_NAME);
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EXPECT_EQ(OB_SUCCESS, region_map.init("localmap", OB_MAX_MEMBER_NUMBER));
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region_map.insert(get_cluster()[0]->get_addr(), default_region);
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region_map.insert(get_cluster()[1]->get_addr(), ObRegion("SHANGHAI"));
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region_map.insert(get_cluster()[2]->get_addr(), ObRegion("TIANJIN"));
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EXPECT_EQ(OB_SUCCESS, leader.set_paxos_member_region_map(region_map));
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EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
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palf_list[1]->set_region(ObRegion("SHANGHAI"));
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palf_list[2]->set_region(ObRegion("TIANJIN"));
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AccessMode curr_access_mode;
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int64_t mode_version, curr_proposal_id;
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ObRole unused_role;
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EXPECT_EQ(OB_SUCCESS, leader.get_access_mode(mode_version, curr_access_mode));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(unused_role, curr_proposal_id));
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EXPECT_EQ(AccessMode::APPEND, curr_access_mode);
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const int64_t follower1_idx = (leader_idx+1)%3;
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const int64_t follower2_idx = (leader_idx+2)%3;
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block_net(leader_idx, follower1_idx);
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// election membership version reaches majority
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sleep(1);
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EXPECT_EQ(OB_SUCCESS, leader.change_access_mode(curr_proposal_id, mode_version, palf::AccessMode::RAW_WRITE, share::SCN::min_scn()));
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unblock_net(leader_idx, follower1_idx);
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block_net(leader_idx, follower2_idx);
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// new_leader需要在delete_paxos_group()之前析构，否则palf_handle引用计数无法清零
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PalfHandleGuard new_leader;
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int64_t new_leader_idx;
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EXPECT_EQ(OB_SUCCESS, get_leader(id, new_leader, new_leader_idx));
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loc_cb.leader_ = get_cluster()[new_leader_idx]->get_addr();
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PALF_LOG(INFO, "set leader for loc_cb", "leader", get_cluster()[new_leader_idx]->get_addr());
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EXPECT_EQ(OB_SUCCESS, palf_list[3]->set_location_cache_cb(&loc_cb));
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EXPECT_EQ(OB_SUCCESS, leader.add_learner(ObMember(get_cluster()[3]->addr_, 1), CONFIG_CHANGE_TIMEOUT));
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sleep(2);
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EXPECT_EQ(OB_SUCCESS, leader.switch_learner_to_acceptor(ObMember(get_cluster()[3]->addr_, 1), CONFIG_CHANGE_TIMEOUT));
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unblock_net(leader_idx, follower2_idx);
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revert_cluster_palf_handle_guard(palf_list);
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}
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delete_paxos_group(id);
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PALF_LOG(INFO, "end test add_member", K(id));
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}
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TEST_F(TestObSimpleLogClusterAccessMode, prev_log_slide)
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{
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SET_CASE_LOG_FILE(TEST_NAME, "prev_log_slide");
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int ret = OB_SUCCESS;
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const int64_t id = ATOMIC_AAF(&palf_id_, 1);
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PALF_LOG(INFO, "begin test prev_log_slide", K(id));
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int64_t leader_idx = 0;
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PalfHandleGuard leader;
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const int64_t CONFIG_CHANGE_TIMEOUT = 10 * 1000 * 1000 * 1000L; // 10s
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EXPECT_EQ(OB_SUCCESS, create_paxos_group(id, leader_idx, leader));
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 200, id));
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// inc current proposal_id
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int64_t curr_pid = 0;
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ObRole role;
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std::vector<PalfHandleGuard*> palf_list;
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EXPECT_EQ(OB_SUCCESS, get_cluster_palf_handle_guard(id, palf_list));
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EXPECT_EQ(OB_SUCCESS, leader.get_role(role, curr_pid));
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EXPECT_EQ(OB_EAGAIN, leader.palf_handle_.palf_handle_impl_->mode_mgr_.switch_state_(AccessMode::RAW_WRITE, share::SCN::min_scn(), false));
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// can not submit_log, config_change in prepare state
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EXPECT_FALSE(leader.palf_handle_.palf_handle_impl_->mode_mgr_.can_append());
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LogConfigChangeArgs args(ObMember(get_cluster()[3]->addr_, 1), 0, ADD_LEARNER);
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EXPECT_EQ(OB_NOT_MASTER, submit_log(leader, 1, id));
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const LogConfigMeta config_meta = leader.palf_handle_.palf_handle_impl_->config_mgr_.log_ms_meta_;
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EXPECT_EQ(OB_EAGAIN, leader.palf_handle_.palf_handle_impl_->config_mgr_.change_config(args));
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const LogConfigMeta new_config_meta = leader.palf_handle_.palf_handle_impl_->config_mgr_.log_ms_meta_;
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EXPECT_EQ(config_meta.curr_.config_version_, new_config_meta.curr_.config_version_);
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// wait prepare req reaches majority
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sleep(1);
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// switch to accept state
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EXPECT_EQ(OB_EAGAIN, leader.palf_handle_.palf_handle_impl_->mode_mgr_.switch_state_(AccessMode::RAW_WRITE, share::SCN::min_scn(), false));
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EXPECT_TRUE(leader.palf_handle_.palf_handle_impl_->mode_mgr_.can_append());
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int64_t new_pid = 0;
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EXPECT_EQ(OB_SUCCESS, leader.get_role(role, new_pid));
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EXPECT_EQ(curr_pid + 1, new_pid);
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EXPECT_EQ(curr_pid + 1, palf_list[1]->palf_handle_.palf_handle_impl_->state_mgr_.get_proposal_id());
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EXPECT_EQ(curr_pid + 1, palf_list[2]->palf_handle_.palf_handle_impl_->state_mgr_.get_proposal_id());
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// apply config_change barrier with older log proposal_id
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EXPECT_EQ(OB_EAGAIN, leader.palf_handle_.palf_handle_impl_->config_mgr_.change_config(args));
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// submit log with new proposal_id and wait for sliding out in follower
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 100, id));
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while (true) {
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if (palf_list[1]->palf_handle_.palf_handle_impl_->sw_.last_slide_log_pid_ == new_pid &&
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palf_list[2]->palf_handle_.palf_handle_impl_->sw_.last_slide_log_pid_ == new_pid) {
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break;
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} else {
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EXPECT_EQ(OB_SUCCESS, submit_log(leader, 1, id));
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usleep(500 * 1000);
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}
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}
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sleep(1);
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revert_cluster_palf_handle_guard(palf_list);
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// continue add_learner, prev log must have slided
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while(true) {
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if (OB_SUCC(leader.palf_handle_.palf_handle_impl_->config_mgr_.change_config(args))) {
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break;
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} else {
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usleep(100 * 1000);
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}
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}
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PALF_LOG(INFO, "end test prev_log_slide", K(id));
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}
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} // end unittest
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} // end oceanbase
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int main(int argc, char **argv)
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{
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RUN_SIMPLE_LOG_CLUSTER_TEST(TEST_NAME);
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}
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