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[Bug][FsBroker] NPE throw when username is empty (#3731)

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When using Broker with an empty username, a NPE is thrown, which is
not expected.
This commit is contained in:
Mingyu Chen
2020-06-01 21:03:21 +08:00
committed by GitHub
parent 8e71c0787c
commit ee260d5721
1 changed files with 1 additions and 1 deletions
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2
fs_brokers/apache_hdfs_broker/src/main/java/org/apache/doris/broker/hdfs/FileSystemManager.java
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@ -335,7 +335,7 @@ public class FileSystemManager {
conf.set(FS_HDFS_IMPL_DISABLE_CACHE, "true");
FileSystem dfsFileSystem = null;
if (authentication.equals(AUTHENTICATION_SIMPLE) &&
properties.containsKey(USER_NAME_KEY)) {
properties.containsKey(USER_NAME_KEY) && !Strings.isNullOrEmpty(username)) {
// Use the specified 'username' as the login name
UserGroupInformation ugi = UserGroupInformation.createRemoteUser(username);
dfsFileSystem = ugi.doAs(new PrivilegedExceptionAction<FileSystem>() {