2012/3/19 郭华 <a798987...@126.com> > hello, > I am reading hadoop's source code. > I want to know that if hadoop uses JAAS? >
If you look in UserGroupInformation.java, you'll see where Hadoop hooks into JAAS. JAAS isn't a great fit for Hadoop's security needs, but it did provide a hook to get the Kerberos credentials. -- Owen
