def METHOD_NAME(self, node):
    """
    :param node: Spark slave node.
    :return: Path to log file.
    """
    return "{SPARK_LOG_DIR}/spark-{userID}-org.apache.spark.deploy.worker.Worker-{instance}-{host}.out".format(
        SPARK_LOG_DIR=self.persistent_root,
        userID=node.account.user,
        instance=1,
        host=node.account.hostname)