java.lang.nullpointerexception for any receipt

gautviv

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

Jbelafa

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