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/*
test durability option with tools (same a dur1.js but use mongorestore to do repair)
*/
var debugging = false;
var testname = "dur1_tool";
var step = 1;
var conn = null;
function checkNoJournalFiles(path, pass) {
var files = listFiles(path);
if (files.some(function(f) {
return f.name.indexOf("prealloc") < 0;
})) {
if (pass == null) {
// wait a bit longer for mongod to potentially finish if it is still running.
sleep(10000);
return checkNoJournalFiles(path, 1);
}
print("\n\n\n");
print("FAIL path:" + path);
print("unexpected files:");
printjson(files);
assert(false, "FAIL a journal/lsn file is present which is unexpected");
}
}
function runDiff(a, b) {
function reSlash(s) {
var x = s;
if (_isWindows()) {
while (1) {
var y = x.replace('/', '\\');
if (y == x)
break;
x = y;
}
}
return x;
}
a = reSlash(a);
b = reSlash(b);
print("diff " + a + " " + b);
return run("diff", a, b);
}
function log(str) {
print();
if (str)
print(testname + " step " + step++ + " " + str);
else
print(testname + " step " + step++);
}
// if you do inserts here, you will want to set _id. otherwise they won't match on different
// runs so we can't do a binary diff of the resulting files to check they are consistent.
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"});
log("endwork");
return d;
}
function verify() {
log("verify test.foo.count == 2");
var d = conn.getDB("test");
var ct = d.foo.count();
if (ct != 2) {
print("\n\n\nFAIL dur1.js count is wrong in verify(): " + ct + "\n\n\n");
assert(ct == 2);
}
}
if (debugging) {
// mongod already running in debugger
conn = db.getMongo();
work();
sleep(30000);
quit();
}
log();
// directories
var path1 = MongoRunner.dataPath + testname + "nodur";
var path2 = MongoRunner.dataPath + testname + "dur";
// non-durable version
log("run mongod without journaling");
conn = MongoRunner.runMongod({dbpath: path1, nodur: "", smallfiles: ""});
work();
MongoRunner.stopMongod(conn);
// durable version
log("run mongod with --journal");
conn = MongoRunner.runMongod({dbpath: path2, journal: "", smallfiles: "", journalOptions: 8});
work();
// wait for group commit.
printjson(conn.getDB('admin').runCommand({getlasterror: 1, fsync: 1}));
// kill the process hard
log("kill 9");
MongoRunner.stopMongod(conn, 9, {allowedExitCode: MongoRunner.EXIT_SIGKILL});
// journal file should be present, and non-empty as we killed hard
// mongod with --dbpath and --journal options should do a recovery pass
// empty.bson is an empty file so it won't actually insert anything
log("use mongod to recover");
conn = MongoRunner.runMongod({
restart: true,
cleanData: false,
dbpath: path2,
journal: "",
smallfiles: "",
noprealloc: "",
bind_ip: "127.0.0.1"
});
verify();
MongoRunner.stopMongod(conn);
// at this point, after clean shutdown, there should be no journal files
log("check no journal files (after presumably clean shutdown)");
checkNoJournalFiles(path2 + "/journal");
log("check data matches ns");
var diff = runDiff(path1 + "/test.ns", path2 + "/test.ns");
if (diff != "") {
print("\n\n\nDIFFERS\n");
print(diff);
}
assert(diff == "", "error test.ns files differ");
log("check data matches .0");
var diff = runDiff(path1 + "/test.0", path2 + "/test.0");
if (diff != "") {
print("\n\n\nDIFFERS\n");
print(diff);
}
assert(diff == "", "error test.0 files differ");
log("check data matches done");
print(testname + " SUCCESS");
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