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[bugfix](external) Prevent multiple fs from being generated #39663

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Aug 21, 2024
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[bugfix](external) Prevent multiple fs from being generated #39663

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22 changes: 21 additions & 1 deletion fe/fe-common/src/main/java/org/apache/doris/common/security/authentication/HadoopUGI.java
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,27 @@ private static UserGroupInformation loginWithUGI(AuthenticationConfig config) {
throw new RuntimeException(e);
}
} else {
return new HadoopSimpleAuthenticator((SimpleAuthenticationConfig) config).getUGI();
String hadoopUserName = ((SimpleAuthenticationConfig) config).getUsername();
if (hadoopUserName == null) {
hadoopUserName = "hadoop";
((SimpleAuthenticationConfig) config).setUsername(hadoopUserName);
LOG.debug(AuthenticationConfig.HADOOP_USER_NAME + " is unset, use default user: hadoop");
}

UserGroupInformation ugi;
try {
ugi = UserGroupInformation.getLoginUser();
if (ugi.getUserName().equals(hadoopUserName)) {
return ugi;
}
} catch (IOException e) {
LOG.warn("A SecurityException occurs with simple, do login immediately.", e);
}

ugi = UserGroupInformation.createRemoteUser(hadoopUserName);
UserGroupInformation.setLoginUser(ugi);
LOG.debug("Login by proxy user, hadoop.username: {}", hadoopUserName);
return ugi;
}
}

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