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/*
test durability
*/
var debugging = false;
var testname = "dur1";
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", 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");
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 = "/data/db/" + testname+"nodur";
var path2 = "/data/db/" + testname+"dur";
// non-durable version
log("run mongod without journaling");
conn = startMongodEmpty("--port", 30000, "--dbpath", path1, "--nodur", "--smallfiles");
work();
stopMongod(30000);
// durable version
log("run mongod with --journal");
conn = startMongodEmpty("--port", 30001, "--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");
stopMongod(30001, /*signal*/9);
// journal file should be present, and non-empty as we killed hard
// restart and recover
log("restart mongod --journal and recover");
conn = startMongodNoReset("--port", 30002, "--dbpath", path2, "--journal", "--smallfiles", "--journalOptions", 8);
verify();
log("stop mongod");
stopMongod(30002);
// stopMongod seems to be asynchronous (hmmm) so we sleep here.
// sleep(5000);
// 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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