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
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "common/Formatter.h"
#include "include/stringify.h"
#include "json_spirit/json_spirit.h"
#include "test_common.h"
using namespace std;
namespace {
using namespace ceph;
int wait_for_healthy(rados_t *cluster)
{
bool healthy = false;
// This timeout is very long because the tests are sometimes
// run on a thrashing cluster
int timeout = 3600;
int slept = 0;
while(!healthy) {
JSONFormatter cmd_f;
cmd_f.open_object_section("command");
cmd_f.dump_string("prefix", "status");
cmd_f.dump_string("format", "json");
cmd_f.close_section();
std::ostringstream cmd_stream;
cmd_f.flush(cmd_stream);
const std::string serialized_cmd = cmd_stream.str();
const char *cmd[2];
cmd[1] = NULL;
cmd[0] = serialized_cmd.c_str();
char *outbuf = NULL;
size_t outlen = 0;
int ret = rados_mon_command(*cluster, (const char **)cmd, 1, "", 0,
&outbuf, &outlen, NULL, NULL);
if (ret) {
return ret;
}
std::string out(outbuf, outlen);
rados_buffer_free(outbuf);
json_spirit::mValue root;
[[maybe_unused]] bool json_parse_success = json_spirit::read(out, root);
ceph_assert(json_parse_success);
json_spirit::mObject root_obj = root.get_obj();
json_spirit::mObject pgmap = root_obj["pgmap"].get_obj();
json_spirit::mArray pgs_by_state = pgmap["pgs_by_state"].get_array();
if (pgs_by_state.size() == 1) {
json_spirit::mObject state = pgs_by_state[0].get_obj();
std::string state_name = state["state_name"].get_str();
if (state_name != std::string("active+clean")) {
healthy = false;
} else {
healthy = true;
}
} else {
healthy = false;
}
if (slept >= timeout) {
return -ETIMEDOUT;
};
if (!healthy) {
sleep(1);
slept += 1;
}
}
return 0;
}
int rados_pool_set(
rados_t *cluster,
const std::string &pool_name,
const std::string &var,
const std::string &val)
{
JSONFormatter cmd_f;
cmd_f.open_object_section("command");
cmd_f.dump_string("prefix", "osd pool set");
cmd_f.dump_string("pool", pool_name);
cmd_f.dump_string("var", var);
cmd_f.dump_string("val", val);
cmd_f.close_section();
std::ostringstream cmd_stream;
cmd_f.flush(cmd_stream);
const std::string serialized_cmd = cmd_stream.str();
const char *cmd[2];
cmd[1] = NULL;
cmd[0] = serialized_cmd.c_str();
int ret = rados_mon_command(*cluster, (const char **)cmd, 1, "", 0, NULL,
NULL, NULL, NULL);
return ret;
}
struct pool_op_error : std::exception {
string msg;
pool_op_error(const std::string& pool_name,
const std::string& func_name,
int err) {
std::ostringstream oss;
oss << func_name << "(" << pool_name << ") failed with error " << err;
msg = oss.str();
}
const char* what() const noexcept override {
return msg.c_str();
}
};
template<typename Func>
std::string with_healthy_cluster(rados_t* cluster,
const std::string& pool_name,
Func&& func)
{
try {
// Wait for 'creating/backfilling' to clear
if (int r = wait_for_healthy(cluster); r != 0) {
throw pool_op_error{pool_name, "wait_for_healthy", r};
}
func();
// Wait for 'creating/backfilling' to clear
if (int r = wait_for_healthy(cluster); r != 0) {
throw pool_op_error{pool_name, "wait_for_healthy", r};
}
} catch (const pool_op_error& e) {
return e.what();
}
return "";
}
}
std::string set_pg_num(
rados_t *cluster, const std::string &pool_name, uint32_t pg_num)
{
return with_healthy_cluster(cluster, pool_name, [&] {
// Adjust pg_num
if (int r = rados_pool_set(cluster, pool_name, "pg_num",
stringify(pg_num));
r != 0) {
throw pool_op_error{pool_name, "set_pg_num", r};
}
});
}
std::string set_pgp_num(
rados_t *cluster, const std::string &pool_name, uint32_t pgp_num)
{
return with_healthy_cluster(cluster, pool_name, [&] {
// Adjust pgp_num
if (int r = rados_pool_set(cluster, pool_name, "pgp_num",
stringify(pgp_num));
r != 0) {
throw pool_op_error{pool_name, "set_pgp_num", r};
}
});
}
|
