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https://issues.apache.org/jira/browse/HDFS-16756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena resolved HDFS-16756.
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Fix Version/s: 3.4.0
Hadoop Flags: Reviewed
Resolution: Fixed
> RBF proxies the client's user by the login user to enable CacheEntry
> --------------------------------------------------------------------
>
> Key: HDFS-16756
> URL: https://issues.apache.org/jira/browse/HDFS-16756
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> RBF just proxies the client's user by the login user for Kerberos
> authentication. If the cluster uses the SIMPLE authentication method, the RBF
> will not proxies the client's user by the login user, the downstream
> namespace will not use the real clientIp, clientPort, clientId and callId
> even if the namenode configured dfs.namenode.ip-proxy-users.
>
> And the related code as bellow:
> {code:java}
> UserGroupInformation connUGI = ugi;
> if (UserGroupInformation.isSecurityEnabled()) {
> UserGroupInformation routerUser = UserGroupInformation.getLoginUser();
> connUGI = UserGroupInformation.createProxyUser(
> ugi.getUserName(), routerUser);
> } {code}
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