Unable to upload file or create directory via Hadoop UI

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I have installed hadoop-3.2.1 in Ubuntu 18.04 with Java-8. I am able to send files to HDFS using the hadoop fs -put command via terminal. But when I try to upload files or create a directory via UI, I am getting the following errors:

While Uploading a file :

Couldn't upload the file temp.txt

While Creating a directory :

Permission denied: user=dr.who, access=WRITE, inode="/":user1:supergroup:drwxr-xr-x

hdfs-site.xml file :

<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:/usr/local/hadoop_tmp/hdfs/namenode</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/usr/local/hadoop_tmp/hdfs/datanode</value>
</property>
</configuration>
webhdfs hdfs hadoop
1 Answers

Read about HDFS Permissions on HDFS Permissions Guide.

Temporarily, you can turn permissions completely off in hdfs-site.xml

<property>
    <name>dfs.permissions</name>
    <value>false</value>
</property>
user_25274580
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