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
|
/**
* Test md5 validation of journal file.
* This test is dependent on the journal file format and may require an update if the format changes,
* see comments near fuzzFile() below.
*/
var debugging = false;
var testname = "dur_md5";
var step = 1;
var conn = null;
function log(str) {
print();
if(str)
print(testname+" step " + step++ + " " + str);
else
print(testname+" step " + step++);
}
/** Changes here may require updating the byte index of the md5 hash, see File comments below. */
function work() {
log("work");
var d = conn.getDB("test");
d.foo.insert({ _id: 3, x: 22 });
d.foo.insert({ _id: 4, x: 22 });
d.a.insert({ _id: 3, x: 22, y: [1, 2, 3] });
d.a.insert({ _id: 4, x: 22, y: [1, 2, 3] });
d.a.update({ _id: 4 }, { $inc: { x: 1} });
// try building an index. however, be careful as object id's in system.indexes would vary, so we do it manually:
d.system.indexes.insert({ _id: 99, ns: "test.a", key: { x: 1 }, name: "x_1", v: 0 });
// d.a.update({ _id: 4 }, { $inc: { x: 1} });
// d.a.reIndex();
// assure writes applied in case we kill -9 on return from this function
d.getLastError();
log("endwork");
}
if( debugging ) {
// mongod already running in debugger
conn = db.getMongo();
work();
sleep(30000);
quit();
}
log();
var path = "/data/db/" + testname+"dur";
log();
conn = startMongodEmpty("--port", 30001, "--dbpath", path, "--dur", "--smallfiles", "--durOptions", 8);
work();
// wait for group commit.
printjson(conn.getDB('admin').runCommand({getlasterror:1, fsync:1}));
log("kill -9");
// kill the process hard
stopMongod(30001, /*signal*/9);
// journal file should be present, and non-empty as we killed hard
// Bit flip the first byte of the md5sum contained within the opcode footer.
// This ensures we get an md5 exception instead of some other type of exception.
var file = path + "/journal/j._0";
// if test fails, uncomment these "cp" lines to debug:
// run("cp", file, "/tmp/before");
// journal header is 8192
// jsectheader is 20
// so a little beyond that
fuzzFile(file, 8214+8);
// run("cp", file, "/tmp/after");
log("run mongod again recovery should fail");
// 100 exit code corresponds to EXIT_UNCAUGHT, which is triggered when there is an exception during recovery.
// 14 is is sometimes triggered instead due to SERVER-2184
exitCode = runMongoProgram( "mongod", "--port", 30002, "--dbpath", path, "--dur", "--smallfiles", "--durOptions", /*9*/13 );
if (exitCode != 100 && exitCode != 14) {
print("\n\n\nFAIL md5.js expected mongod to fail but didn't? mongod exitCode: " + exitCode + "\n\n\n");
// sleep a little longer to get more output maybe
sleep(2000);
assert(false);
}
// TODO Possibly we could check the mongod log to verify that the correct type of exception was thrown. But
// that would introduce a dependency on the mongod log format, which we may not want.
print("SUCCESS md5.js");
// if we sleep a littler here we may get more out the mongod output logged
sleep(500);
|
