1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Copyright (C) 2019 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#include "wsrep/client_state.hpp"
#include "client_state_fixture.hpp"
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_CASE(test_local_nbo,
replicating_client_fixture_sync_rm)
{
// NBO is executed in two consecutive TOI operations
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_local);
// First phase certifies the write set and enters TOI
wsrep::key key(wsrep::key::exclusive);
key.append_key_part("k1", 2);
key.append_key_part("k2", 2);
wsrep::key_array keys{key};
std::string data("data");
BOOST_REQUIRE(cc.begin_nbo_phase_one(
keys,
wsrep::const_buffer(data.data(),
data.size())) == 0);
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_nbo);
BOOST_REQUIRE(cc.in_toi());
BOOST_REQUIRE(cc.toi_mode() == wsrep::client_state::m_local);
// After required resoureces have been grabbed, NBO leave should
// end TOI but leave the client state in m_nbo.
const wsrep::mutable_buffer err;
BOOST_REQUIRE(cc.end_nbo_phase_one(err) == 0);
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_nbo);
BOOST_REQUIRE(cc.in_toi() == false);
BOOST_REQUIRE(cc.toi_mode() == wsrep::client_state::m_undefined);
// Second phase replicates the NBO end event and grabs TOI
// again for finalizing the NBO.
BOOST_REQUIRE(cc.begin_nbo_phase_two(keys) == 0);
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_nbo);
BOOST_REQUIRE(cc.in_toi());
BOOST_REQUIRE(cc.toi_mode() == wsrep::client_state::m_local);
// End of NBO phase will leave TOI and put the client state back to
// m_local
BOOST_REQUIRE(cc.end_nbo_phase_two(err) == 0);
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_local);
BOOST_REQUIRE(cc.in_toi() == false);
BOOST_REQUIRE(cc.toi_mode() == wsrep::client_state::m_undefined);
// There must have been two toi write sets, one with
// start transaction flag, another with commit flag.
BOOST_REQUIRE(sc.provider().toi_write_sets() == 2);
BOOST_REQUIRE(sc.provider().toi_start_transaction() == 1);
BOOST_REQUIRE(sc.provider().toi_commit() == 1);
}
BOOST_FIXTURE_TEST_CASE(test_local_nbo_cert_failure,
replicating_client_fixture_sync_rm)
{
// NBO is executed in two consecutive TOI operations
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_local);
// First phase certifies the write set and enters TOI
wsrep::key key(wsrep::key::exclusive);
key.append_key_part("k1", 2);
key.append_key_part("k2", 2);
wsrep::key_array keys{key};
std::string data("data");
sc.provider().certify_result_ = wsrep::provider::error_certification_failed;
BOOST_REQUIRE(cc.begin_nbo_phase_one(
keys,
wsrep::const_buffer(data.data(),
data.size())) == 1);
BOOST_REQUIRE(cc.current_error() == wsrep::e_deadlock_error);
BOOST_REQUIRE(cc.current_error_status() ==
wsrep::provider::error_certification_failed);
BOOST_REQUIRE(cc.mode() == wsrep::client_state::m_local);
BOOST_REQUIRE(cc.in_toi() == false);
BOOST_REQUIRE(cc.toi_mode() == wsrep::client_state::m_undefined);
}
// This test case operates through server_state object in order to
// verify that the high priority service is called with appropriate
// arguments.
BOOST_FIXTURE_TEST_CASE(test_applying_nbo,
applying_client_fixture)
{
wsrep::mock_high_priority_service hps(sc, &cc, false);
wsrep::ws_handle ws_handle(wsrep::transaction_id::undefined(), (void*)(1));
const int nbo_begin_flags(wsrep::provider::flag::start_transaction |
wsrep::provider::flag::isolation);
wsrep::ws_meta ws_meta(wsrep::gtid(wsrep::id("cluster1"),
wsrep::seqno(1)),
wsrep::stid(wsrep::id("s1"),
wsrep::transaction_id::undefined(),
wsrep::client_id(1)),
wsrep::seqno(0),
nbo_begin_flags);
std::string nbo_begin("nbo_begin");
BOOST_REQUIRE(sc.on_apply(hps, ws_handle, ws_meta,
wsrep::const_buffer(nbo_begin.data(),
nbo_begin.size())) == 0);
wsrep::mock_client* nbo_cs(hps.nbo_cs());
BOOST_REQUIRE(nbo_cs);
BOOST_REQUIRE(nbo_cs->toi_mode() == wsrep::client_state::m_undefined);
BOOST_REQUIRE(nbo_cs->mode() == wsrep::client_state::m_nbo);
// After this point the control is on local process and applier
// has released toi critical section.
wsrep::key key(wsrep::key::exclusive);
key.append_key_part("k1", 2);
key.append_key_part("k2", 2);
wsrep::key_array keys{key};
// Starting phase two should put nbo_cs in toi mode.
BOOST_REQUIRE(nbo_cs->begin_nbo_phase_two(keys) == 0);
BOOST_REQUIRE(nbo_cs->mode() == wsrep::client_state::m_nbo);
BOOST_REQUIRE(nbo_cs->in_toi());
BOOST_REQUIRE(nbo_cs->toi_mode() == wsrep::client_state::m_local);
// Ending phase two should make nbo_cs leave TOI mode and
// return to m_local mode.
const wsrep::mutable_buffer err;
BOOST_REQUIRE(nbo_cs->end_nbo_phase_two(err) == 0);
BOOST_REQUIRE(nbo_cs->mode() == wsrep::client_state::m_local);
BOOST_REQUIRE(nbo_cs->in_toi() == false);
BOOST_REQUIRE(nbo_cs->toi_mode() == wsrep::client_state::m_undefined);
// There must have been one toi write set with commit flag.
BOOST_REQUIRE(sc.provider().toi_write_sets() == 1);
BOOST_REQUIRE(sc.provider().toi_start_transaction() == 0);
BOOST_REQUIRE(sc.provider().toi_commit() == 1);
}
// This test case operates through server_state object in order to
// verify that the high priority service is called with appropriate
// arguments. The test checks that error is returned in the case if
// launching asynchronous process for NBO fails.
BOOST_FIXTURE_TEST_CASE(test_applying_nbo_fail,
applying_client_fixture)
{
wsrep::mock_high_priority_service hps(sc, &cc, false);
wsrep::ws_handle ws_handle(wsrep::transaction_id::undefined(), (void*)(1));
const int nbo_begin_flags(wsrep::provider::flag::start_transaction |
wsrep::provider::flag::isolation);
wsrep::ws_meta ws_meta(wsrep::gtid(wsrep::id("cluster1"),
wsrep::seqno(1)),
wsrep::stid(wsrep::id("s1"),
wsrep::transaction_id::undefined(),
wsrep::client_id(1)),
wsrep::seqno(0),
nbo_begin_flags);
std::string nbo_begin("nbo_begin");
hps.fail_next_toi_ = true;
BOOST_REQUIRE(sc.on_apply(hps, ws_handle, ws_meta,
wsrep::const_buffer(nbo_begin.data(),
nbo_begin.size())) == 1);
}
|
