Arun Suresh created HADOOP-11482: ------------------------------------ Summary: Clients that cache instances of KMSClientProvider fail Authentication when "addDelegationTokens()" method is called after authentication token validity expires Key: HADOOP-11482 URL: https://issues.apache.org/jira/browse/HADOOP-11482 Project: Hadoop Common Issue Type: Bug Affects Versions: 2.5.0 Reporter: Arun Suresh Assignee: Arun Suresh
Long Living clients of HDFS (For eg. OOZIE) use cached DFSClients which in turn use a cached KMSClientProvider to talk to KMS. Before an MR Job is run, the job client calls the {{DFClient.addDelegationTokens()}} method which calls {{addDelegationTokens()}} on the {{KMSClientProvider}} to get any delegation token associated to the user. Unfortunately, this call uses a cached {{DelegationTokenAuthenticationURL.Token}} instance which can cause the {{SignerSecretProvider}} implementation of the {{AuthenticationFilter}} at the KMS Server end to fail validation. Which results in the MR job itself failing. -- This message was sent by Atlassian JIRA (v6.3.4#6332)