FileStatus status = fs.getFileStatus(tablePath);
long fileLen = status.getLen();
long randomNum = (long) (Math.random() * fileLen) + 1;
FileFragment[] tablets = new FileFragment[2];
tablets[0] = new FileFragment("Splitable", tablePath, 0, randomNum);
tablets[1] = new FileFragment("Splitable", tablePath, randomNum, (fileLen - randomNum));
Scanner scanner = StorageManagerFactory.getStorageManager(conf).getScanner(meta, schema, tablets[0], schema);
scanner.init();
int tupleCnt = 0;
while (scanner.next() != null) {