Imported Upstream version 1.6.3

1 files changed, 224 insertions, 0 deletions

diff --git a/jstests/replsets/rollback3.js b/jstests/replsets/rollback3.js
new file mode 100755
index 0000000..5c2f2f1
--- /dev/null
+++ b/jstests/replsets/rollback3.js
@@ -0,0 +1,224 @@
+// test rollback in replica sets
+
+// try running as :
+// 
+//   mongo --nodb rollback.js | tee out | grep -v ^m31
+//
+
+var debugging = 0;
+
+function pause(s) {
+    print(s);
+    while (debugging) {
+        sleep(3000);
+        print(s);
+    }
+}
+
+function deb(obj) { 
+    if( debugging ) {
+        print("\n\n\n" + obj + "\n\n");
+    }  
+}
+
+w = 0;
+
+function wait(f) {
+    w++;
+    var n = 0;
+    while (!f()) {
+        if (n % 4 == 0)
+            print("rollback3.js waiting " + w);
+        if (++n == 4) {
+            print("" + f);

+        }

+        if (n == 200) {

+            print("rollback3.js failing waited too long");

+            throw "wait error";
+        }
+        sleep(1000);
+    }
+}
+
+function dbs_match(a, b) {
+    print("dbs_match");
+
+    var ac = a.system.namespaces.find().sort({name:1}).toArray();
+    var bc = b.system.namespaces.find().sort({name:1}).toArray();
+    if (!friendlyEqual(ac, bc)) {
+        print("dbs_match: namespaces don't match");
+        print("\n\n");
+        printjson(ac);
+        print("\n\n");
+        printjson(bc);
+        print("\n\n");
+        return false;
+    }
+
+    var c = a.getCollectionNames();
+    for( var i in c ) {
+        print("checking " + c[i]);
+        // system.indexes doesn't have _id so the more involved sort here: 
+        if (!friendlyEqual(a[c[i]].find().sort({ _id: 1, ns:1, name:1 }).toArray(), b[c[i]].find().sort({ _id: 1, ns:1,name:1 }).toArray())) {
+            print("dbs_match: collections don't match " + c[i]);
+            if (a[c[i]].count() < 12) {
+                printjson(a[c[i]].find().sort({ _id: 1 }).toArray());
+                printjson(b[c[i]].find().sort({ _id: 1 }).toArray());
+            }
+            return false;
+        }
+    }
+    return true;
+}
+
+/* these writes will be initial data and replicate everywhere. */
+function doInitialWrites(db) {
+    db.b.insert({ x: 1 });
+    db.b.ensureIndex({ x: 1 });
+    db.oldname.insert({ y: 1 });
+    db.oldname.insert({ y: 2 });
+    db.oldname.ensureIndex({ y: 1 },true);
+    t = db.bar;
+    t.insert({ q:0});
+    t.insert({ q: 1, a: "foo" });
+    t.insert({ q: 2, a: "foo", x: 1 });
+    t.insert({ q: 3, bb: 9, a: "foo" });
+    t.insert({ q: 40333333, a: 1 });
+    for (var i = 0; i < 200; i++) t.insert({ i: i });
+    t.insert({ q: 40, a: 2 });
+    t.insert({ q: 70, txt: 'willremove' });
+
+    db.createCollection("kap", { capped: true, size: 5000 });
+    db.kap.insert({ foo: 1 })
+}
+
+/* these writes on one primary only and will be rolled back. */
+function doItemsToRollBack(db) {    
+    t = db.bar;
+    t.insert({ q: 4 });
+    t.update({ q: 3 }, { q: 3, rb: true });
+
+    t.remove({ q: 40 }); // multi remove test
+
+    t.update({ q: 2 }, { q: 39, rb: true });
+
+    // rolling back a delete will involve reinserting the item(s)
+    t.remove({ q: 1 });
+
+    t.update({ q: 0 }, { $inc: { y: 1} });
+
+    db.kap.insert({ foo: 2 })
+    db.kap2.insert({ foo: 2 })
+
+    // create a collection (need to roll back the whole thing)
+    db.newcoll.insert({ a: true });
+
+    // create a new empty collection (need to roll back the whole thing)
+    db.createCollection("abc");
+
+    // drop a collection - we'll need all its data back!
+    t.drop();
+
+    // drop an index - verify it comes back
+    db.b.dropIndexes();
+
+    // two to see if we transitively rollback?
+    db.oldname.renameCollection("newname");
+    db.newname.renameCollection("fooname");
+
+    assert(db.fooname.count() > 0, "count rename");
+
+    // test roll back (drop) a whole database   
+    abc = db.getSisterDB("abc");
+    abc.foo.insert({ x: 1 });
+    abc.bar.insert({ y: 999 });
+
+    // test making and dropping a database
+    //mkd = db.getSisterDB("mkd");
+    //mkd.c.insert({ y: 99 });
+    //mkd.dropDatabase();
+}
+
+function doWritesToKeep2(db) {
+    t = db.bar;
+    t.insert({ txt: 'foo' });
+    t.remove({ q: 70 });
+    t.update({ q: 0 }, { $inc: { y: 33} });
+}
+
+doTest = function (signal) {
+
+    var replTest = new ReplSetTest({ name: 'unicomplex', nodes: 3 });
+    var nodes = replTest.nodeList();
+    //print(tojson(nodes));
+
+    var conns = replTest.startSet();
+    var r = replTest.initiate({ "_id": "unicomplex",
+        "members": [
+                             { "_id": 0, "host": nodes[0] },
+                             { "_id": 1, "host": nodes[1] },
+                             { "_id": 2, "host": nodes[2], arbiterOnly: true}]
+    });
+
+    // Make sure we have a master
+    var master = replTest.getMaster();
+    a_conn = conns[0];
+    A = a_conn.getDB("admin");
+    b_conn = conns[1];
+    a_conn.setSlaveOk();
+    b_conn.setSlaveOk();
+    B = b_conn.getDB("admin");
+    assert(master == conns[0], "conns[0] assumed to be master");
+    assert(a_conn == master);
+
+    //deb(master);
+
+    // Make sure we have an arbiter
+    assert.soon(function () {
+        res = conns[2].getDB("admin").runCommand({ replSetGetStatus: 1 });
+        return res.myState == 7;
+    }, "Arbiter failed to initialize.");
+
+    // Wait for initial replication
+    var a = a_conn.getDB("foo");
+    var b = b_conn.getDB("foo");
+    doInitialWrites(a);
+
+    // wait for secondary to get this data
+    wait(function () { return b.bar.count() == a.bar.count(); });
+
+    A.runCommand({ replSetTest: 1, blind: true });
+    wait(function () { return B.isMaster().ismaster; });
+
+    doItemsToRollBack(b);
+
+    // a should not have the new data as it was in blind state.
+    B.runCommand({ replSetTest: 1, blind: true });
+    A.runCommand({ replSetTest: 1, blind: false });
+    wait(function () { return !B.isMaster().ismaster; });
+    wait(function () { return A.isMaster().ismaster; });
+
+    assert(a.bar.count() >= 1, "count check");
+    doWritesToKeep2(a);
+
+    // A is 1 2 3 7 8
+    // B is 1 2 3 4 5 6
+
+    // bring B back online
+    // as A is primary, B will roll back and then catch up
+    B.runCommand({ replSetTest: 1, blind: false });
+
+    wait(function () { return B.isMaster().ismaster || B.isMaster().secondary; });
+
+    // everyone is up here...
+    assert(A.isMaster().ismaster || A.isMaster().secondary, "A up");
+    assert(B.isMaster().ismaster || B.isMaster().secondary, "B up");
+
+    assert( dbs_match(a,b), "server data sets do not match after rollback, something is wrong");
+
+    pause("rollback3.js SUCCESS");
+    replTest.stopSet(signal);
+}
+
+print("rollback3.js");
+doTest( 15 );