[ https://issues.apache.org/jira/browse/HADOOP-12649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15089210#comment-15089210 ]
Steve Loughran commented on HADOOP-12649: ----------------------------------------- SLIDER-1035 is where I'm implementing the core of the diagnostics, with a plan to move over > Improve UGI diagnostics and failure handling > -------------------------------------------- > > Key: HADOOP-12649 > URL: https://issues.apache.org/jira/browse/HADOOP-12649 > Project: Hadoop Common > Issue Type: Improvement > Components: security > Affects Versions: 2.7.1 > Environment: Kerberos > Reporter: Steve Loughran > > Sometimes —apparently— some people cannot get kerberos to work. > The ability to diagnose problems here is hampered by some aspects of UGI > # the only way to turn on JAAS debug information is through an env var, not > within the JVM > # failures are potentially underlogged > # exceptions raised are generic IOEs, so can't be trapped and filtered > # failure handling on the TGT renewer thread is nonexistent > # the code is barely-readable, underdocumented mess. -- This message was sent by Atlassian JIRA (v6.3.4#6332)