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https://issues.apache.org/jira/browse/HADOOP-5731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12702012#action_12702012
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Tsz Wo (Nicholas), SZE commented on HADOOP-5731:
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In the current design, it is not expected to run Hadoop with SecurityManager
due to performance reason. Of course, it would be great if we can fix this.
See also [Arun's
comment|https://issues.apache.org/jira/browse/HADOOP-4348?focusedCommentId=12643117&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12643117].
> IPC call can raise security exceptions when the remote node is running under
> a security manager
> -----------------------------------------------------------------------------------------------
>
> Key: HADOOP-5731
> URL: https://issues.apache.org/jira/browse/HADOOP-5731
> Project: Hadoop Core
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.21.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
>
> I'm getting a security exception (java.lang.reflect.ReflectPermission
> suppressAccessChecks) in RPC.Server.call(), when calling a datanode brought
> up under a security manager, in method.setAccessible(true)
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