subprojects/parseq-zk-client/src/main/java/com/linkedin/parseq/zk/recipes/LockUtil.java
public static byte[] getLockData() {
    String str = String.format("%s:%s", HOST_NAME, Thread.currentThread().getName());
    return str.getBytes(UTF8);
  }
public static byte[] getLockData() {
    String str = String.format("%s:%s", HOST_NAME, Thread.currentThread().getName());
    return str.getBytes(UTF8);
  }
Returns lock data in a form of "hostname:threadName"