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Posted to common-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2013/08/07 22:27:49 UTC
[jira] [Created] (HADOOP-9850) RPC kerberos errors don't trigger
relogin
Daryn Sharp created HADOOP-9850:
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Summary: RPC kerberos errors don't trigger relogin
Key: HADOOP-9850
URL: https://issues.apache.org/jira/browse/HADOOP-9850
Project: Hadoop Common
Issue Type: Bug
Components: ipc
Affects Versions: 3.0.0, 2.1.0-beta
Reporter: Daryn Sharp
Assignee: Daryn Sharp
Priority: Blocker
Hadoop auto-renews a ticket cache TGT. However, a TGT acquired via keytab is just allowed to expire. To compensate, any exception during a kerberos RPC connection triggers a relogin.
Prior to HADOOP-9698, the RPC client "knew" the SASL client was attempting authMethod kerberos. Now the SASL client negotiates and returns the authMethod to the RPC Client. When an exception occurs, such as TGT expired, the Client doesn't know what the SASL client was attempting so no relogin is attempted. After 24 hours, keytab based services that act as clients (ex. RM for token renewal) go dead.
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