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
|
/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/logv2/log.h"
#include "mongo/base/error_codes.h"
#include "mongo/db/commands/shutdown.h"
#include "mongo/stdx/thread.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/exit_code.h"
#include "mongo/util/fail_point.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand
namespace mongo {
namespace shutdown_detail {
MONGO_FAIL_POINT_DEFINE(crashOnShutdown);
int* volatile illegalAddress; // NOLINT - used for fail point only
void finishShutdown(OperationContext* opCtx,
bool force,
Milliseconds timeout,
Milliseconds quiesceTime) {
crashOnShutdown.execute([&](const BSONObj& data) {
if (data["how"].str() == "fault") {
++*illegalAddress;
}
::abort();
});
// Shared by mongos and mongod shutdown code paths
LOGV2(4695400,
"Terminating via shutdown command",
"force"_attr = force,
"timeout"_attr = timeout);
// Only allow the first shutdown command to spawn a new thread and execute the shutdown.
// Late arrivers will skip and wait until operations are killed.
static StaticImmortal<AtomicWord<bool>> shutdownAlreadyInProgress{false};
if (!shutdownAlreadyInProgress->swap(true)) {
stdx::thread([quiesceTime] {
ShutdownTaskArgs shutdownArgs;
shutdownArgs.isUserInitiated = true;
shutdownArgs.quiesceTime = quiesceTime;
#if defined(_WIN32)
// Signal the ServiceMain thread to shutdown.
if (ntservice::shouldStartService()) {
shutdownNoTerminate(shutdownArgs);
return;
}
#endif
shutdown(ExitCode::clean, shutdownArgs); // this never returns
})
.detach();
}
// Client expects the shutdown command to abruptly close the socket as part of exiting.
// This function is not allowed to return until the server interrupts its operation.
// The following requires the shutdown task to kill all the operations after the server
// stops accepting incoming connections.
while (opCtx->checkForInterruptNoAssert().isOK())
sleepsecs(1);
iasserted({ErrorCodes::CloseConnectionForShutdownCommand,
"Closing the connection running the shutdown command"});
}
} // namespace shutdown_detail
} // namespace mongo
|