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Posted to common-issues@hadoop.apache.org by "Adam Antal (JIRA)" <ji...@apache.org> on 2018/07/11 15:04:00 UTC
[jira] [Comment Edited] (HADOOP-14212) Expose SecurityEnabled
boolean field in JMX for other services besides NameNode
[ https://issues.apache.org/jira/browse/HADOOP-14212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16540214#comment-16540214 ]
Adam Antal edited comment on HADOOP-14212 at 7/11/18 3:03 PM:
--------------------------------------------------------------
MXBeans added for ResourceManager and NodeManager, added test too.
If you have any more ideas which other services can be added, let me know - otherwise I keep on finalizing this patch.
was (Author: adam.antal):
MXBeans added for ResourceManager and NodeManager, added test too.
> Expose SecurityEnabled boolean field in JMX for other services besides NameNode
> -------------------------------------------------------------------------------
>
> Key: HADOOP-14212
> URL: https://issues.apache.org/jira/browse/HADOOP-14212
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Ray Burgemeestre
> Assignee: Adam Antal
> Priority: Minor
> Labels: newbie, security
> Attachments: HADOOP-14212.001.patch, HADOOP-14212.002.patch, HADOOP-14212.003.patch
>
>
> The following commit https://github.com/apache/hadoop/commit/dc17bda4b677e30c02c2a9a053895a43e41f7a12 introduced a "SecurityEnabled" field in the JMX output for the NameNode. I believe it would be nice to add this same change to the JMX output of other services: Secondary Namenode, ResourceManager, NodeManagers, DataNodes, etc. So that it can be queried whether Security is enabled in all JMX resources.
> The reason I am suggesting this feature / improvement is that I think it would provide a clean way to check whether your cluster is completely Kerberized or not. I don't think there is an easy/clean way to do this now, other than checking the logs, checking ports etc.?
> The file where the change was made is hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java has the following function now:
> {code:java}
> @Override // NameNodeStatusMXBean
> public boolean isSecurityEnabled() {
> return UserGroupInformation.isSecurityEnabled();
> }
> {code}
> I would be happy to develop a patch if it seems useful by others as well?
> This is a snippet from the JMX output from the NameNode in case security is not enabled:
> {code}
> {
> "name" : "Hadoop:service=NameNode,name=NameNodeStatus",
> "modelerType" : "org.apache.hadoop.hdfs.server.namenode.NameNode",
> "NNRole" : "NameNode",
> "HostAndPort" : "node001.cm.cluster:8020",
> "SecurityEnabled" : false,
> "LastHATransitionTime" : 0,
> "State" : "standby"
> }
> {code}
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