java.lang.nullpointerexception for any receipt

Highlighted
gautviv
Level 1
java.lang.nullpointerexception for any receipt

Hey,



I'm working on DSS 2.2.1. I needed to reboot my dataiu server, and restart dataiku. Then, all my receipt (Hive and Python) don't work. I have the famous: java.lang.nullpointerexception. Here the error;




java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:514)
at java.util.Hashtable.putAll(Hashtable.java:587)
at org.apache.hadoop.conf.CoreDefaultProperties.<init>(CoreDefaultProperties.java:76)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:374)
at org.apache.hadoop.conf.Configuration.getProperties(Configuration.java:2064)
at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2272)
at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2224)
at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2141)
at org.apache.hadoop.conf.Configuration.get(Configuration.java:1081)
at org.apache.hadoop.fs.FileSystem.getDefaultUri(FileSystem.java:177)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:169)
at com.dataiku.dctc.HadoopLoader.getFS(HadoopLoader.java:42)
at com.dataiku.dip.datasets.fs.HDFSDatasetHandler.loadFS(HDFSDatasetHandler.java:479)
at com.dataiku.dip.datasets.fs.HDFSDatasetHandler.enumerateFilesystem(HDFSDatasetHandler.java:149)
at com.dataiku.dip.datasets.fs.AbstractFSDatasetHandler.enumeratePartition(AbstractFSDatasetHandler.java:384)
at com.dataiku.dip.datasets.fs.AbstractFSDatasetHandler.getContentHash(AbstractFSDatasetHandler.java:482)
at com.dataiku.dip.dataflow.ComputableHashComputer.getCurrentContentHash(ComputableHashComputer.java:153)
at com.dataiku.dip.dataflow.ComputableHashComputer.getCurrentContentHash(ComputableHashComputer.java:102)
at com.dataiku.dip.dataflow.jobrunner.ActivityRunner.checkSourcesReady(ActivityRunner.java:337)
at com.dataiku.dip.dataflow.jobrunner.ActivityRunner.runActivity(ActivityRunner.java:434)
at com.dataiku.dip.dataflow.jobrunner.JobRunner.runActivity(JobRunner.java:105)
at com.dataiku.dip.dataflow.jobrunner.JobRunner.access$700(JobRunner.java:29)
at com.dataiku.dip.dataflow.jobrunner.JobRunner$ActivityExecutorThread.run(JobRunner.java:281)


 



When I start dss I have this message in the stdout




[dataiku@lcl-dataiku-soft-1 bin]$ ./dss start
Waiting for Data Science Studio supervisor to start ...
backend STARTING
hproxy BACKOFF Exited too quickly (process log may have details)
ipython STARTING
nginx STARTING


 



 



Do you hava any idea what's going on? Thank's in advance



Gautier

0 Kudos
1 Reply
Jbelafa Dataiker
Dataiker
Re: java.lang.nullpointerexception for any receipt
Hi

There's definitely a problem with your HDFS. You can test it with the following shell command "hdfs -dfs -ls"

(if it's a local hadoop cluster you may need to restart your Hadoop services) .

Joel
0 Kudos
Labels (1)