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[bugfix](hive)Prevent multiple fs from being generated for 2.0 (#36954) #38045

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Jul 23, 2024
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[bugfix](hive)Prevent multiple fs from being generated for 2.0 (#36954) #38045

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10 changes: 10 additions & 0 deletions fe/fe-core/src/main/java/org/apache/doris/fs/remote/dfs/DFSFileSystem.java
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,16 @@ private UserGroupInformation doLogin(Configuration conf) throws UserException {
hadoopUserName = "hadoop";
LOG.debug(HdfsResource.HADOOP_USER_NAME + " is unset, use default user: hadoop");
}

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

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