var rt = new ReplTest(); var master = rt.start( true ); var slave = rt.start( false ); for ( var i = 1; i <= 20; i++) { master.getDB( "test" ).createCollection( "coll" + i); } assert.writeOK(master.getDB( "test" ).coll0.insert({}, {writeConcern: {w: 2}})); for ( var i = 0; i <= 20; i++) { var res = slave.getDB( "test" ).runCommand({listCollections: 1, filter: {name: "coll" + i}}); // This fails for some collections. assert.eq(res.cursor.firstBatch.length, 1, "collection coll" + i + " not found" ); } rt.stop();