[HIVE-25992] Can not init HiveMetaStoreClient when using proxy user

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3.9
• Component/s: Hive
• Assignee: Unassigned
• Reporter: chenruotao
• Due: 31/May/22
• Created: 01/Mar/22 08:40
• Updated: 01/Mar/22 08:48

Description

when I use this code to access hms

UserGroupInformation proxyUser = UserGroupInformation.createProxyUser(proxyUserName, userGroupInformation);
proxyUser.doAs((PrivilegedExceptionAction<Boolean>) () -> {
    XXXXXX
    return true;
});
 

there will throw exception 

so I debug with this, and find something  maybe wrong in the class named HiveMetaStoreClient:

because the value of UserGroupInformation.getLoginUser().getRealUser() that in proxy.doas is null, so i change to UserGroupInformation.getLoginUser() and i works

so what I did is no problem?