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ASF GitHub Bot commented on HDFS-4043: -------------------------------------- snmvaughan commented on code in PR #4693: URL: https://github.com/apache/hadoop/pull/4693#discussion_r944849715 ########## hadoop-common-project/hadoop-common/src/main/resources/core-default.xml: ########## @@ -130,6 +130,14 @@ </description> </property> +<property> + <name>hadoop.security.resolver.impl</name> + <value></value> Review Comment: I agree that your suggestion sounds like a good idea. I followed the example of `dfs.namenode.edits.qjournals.resolver.impl` which doesn't provide the value. > Namenode Kerberos Login does not use proper hostname for host qualified hdfs > principal name. > -------------------------------------------------------------------------------------------- > > Key: HDFS-4043 > URL: https://issues.apache.org/jira/browse/HDFS-4043 > Project: Hadoop HDFS > Issue Type: Bug > Components: security > Affects Versions: 2.0.0-alpha, 2.0.1-alpha, 2.0.2-alpha, 2.0.3-alpha, > 3.4.0, 3.3.9 > Environment: CDH4U1 on Ubuntu 12.04 > Reporter: Ahad Rana > Priority: Major > Labels: pull-request-available > Original Estimate: 24h > Time Spent: 50m > Remaining Estimate: 23h 10m > > The Namenode uses the loginAsNameNodeUser method in NameNode.java to login > using the hdfs principal. This method in turn invokes SecurityUtil.login with > a hostname (last parameter) obtained via a call to InetAddress.getHostName. > This call does not always return the fully qualified host name, and thus > causes the namenode to login to fail due to kerberos's inability to find a > matching hdfs principal in the hdfs.keytab file. Instead it should use > InetAddress.getCanonicalHostName. This is consistent with what is used > internally by SecurityUtil.java to login in other services, such as the > DataNode. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org