[jira] Created: (HADOOP-6574) Commit HADOOP-6414:Add command line help for -expunge command. to Hadoop 0.20

Commit HADOOP-6414:Add command line help for -expunge command.to Hadoop 0.20 - Key: HADOOP-6574 URL: https://issues.apache.org/jira/browse/HADOOP-6574 Project: Hadoo

Hadoop Security

hi all i am doing my research in security issues of hadoop.i have noticed that security can be attained under three heads like user authentication,data transfer while running hadoop service and HDFS level. Analyzed that kerberos cab be used for user authentication.when the user wants to submit

[jira] Created: (HADOOP-6573) Delegation Tokens should be persisted in Namenode

Delegation Tokens should be persisted in Namenode - Key: HADOOP-6573 URL: https://issues.apache.org/jira/browse/HADOOP-6573 Project: Hadoop Common Issue Type: New Feature Reporter:

[jira] Created: (HADOOP-6572) RPC responses may be out-of-order with respect to SASL

RPC responses may be out-of-order with respect to SASL -- Key: HADOOP-6572 URL: https://issues.apache.org/jira/browse/HADOOP-6572 Project: Hadoop Common Issue Type: Bug Components

Question on job scheduling

All, I am a newbie and trying to learn the Hadoop internals. I have got a few questions on something that I am trying to implement. I am still in the learning process, so these questions may seem silly or may even be entirely wrong, any guidance is highly appreciated. I am working on release