Error “Failed to retrieve data from /webhdfs/v1/?op=LISTSTATUS: Server Error” when using hadoop

Question

I opened up localhost:9870 and try to upload a txt file to the hdfs.

I see the error message below

Failed to retrieve data from /webhdfs/v1/?op=LISTS         


        

Answer 1

I had the same issue with JDK 9. The fix for me was to add this line in hadoop-env.sh

export HADOOP_OPTS="--add-modules java.activation"

Thats because java.activation package is deprecated in Java 9.

Answer 2

Just solved such a problem, I have multiple java versions and hadoop3.1.0.

you need to specify the java home variable in etc/hadoop/hadoop-env.sh, and the java version should be 1.8.

Answer 3

I got this to work with OpenJDK 13 by downloading hadoop 2.9.2 and copying the activation-1.1.jar file from that download into the $HADOOP_HOME/share/hadoop/yarn folder you're using for Hadoop 3. Then you have to run stop-dfs.sh and stop-yarn.sh and then start them both again. No need to edit any config files with this method since it will automatically be added to the classpath.