john lilley created HADOOP-12332:
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Summary: UserGroupInformation.reloginFromKeytab() timeout can
leave UGI in unusable state
Key: HADOOP-12332
URL: https://issues.apache.org/jira/browse/HADOOP-12332
Project: Hadoop Common
Issue Type: Bug
Components: security
Affects Versions: 2.6.0
Environment: affects all
Reporter: john lilley
Priority: Minor
UserGroupInformation.reloginFromKeytab() sets the current timestamp before the
try:
// register most recent relogin attempt
user.setLastLogin(now);
try {
If a timeout error occurs during user.login() due to heavy system load, this
leaves the user logged out and unusable, and because it has updated the
timestamp, the caller cannot recover by calling reloginFromKeytab() immediately.
It may be that timeouts should be considered fatal errors in this case, in
which I would call it "as designed".
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