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Posted to hdfs-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2013/07/12 01:11:49 UTC

[jira] [Created] (HDFS-4982) JournalNode should relogin from keytab before fetching logs from other JNs

Todd Lipcon created HDFS-4982:
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             Summary: JournalNode should relogin from keytab before fetching logs from other JNs
                 Key: HDFS-4982
                 URL: https://issues.apache.org/jira/browse/HDFS-4982
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: journal-node, security
    Affects Versions: 3.0.0, 2.1.0-beta
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon


We've seen an issue in a secure cluster where, after a failover, the new NN isn't able to properly coordinate QJM recovery. The JNs fail to fetch logs from each other due to apparently not having a Kerberos TGT. It seems that we need to add the {{checkTGTAndReloginFromKeytab}} call prior to making the HTTP connection, since the java HTTP stuff doesn't do an automatic relogin

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