incubator-hcatalog-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Monnand <monn...@gmail.com>
Subject ClassNotFoundException HCatInputFormat
Date Thu, 15 Mar 2012 04:18:27 GMT
Dear All,

I wrote a MapReduce job using HCatalog, and got the following messages
when running the Mapper:

12/03/14 22:04:05 INFO mapred.JobClient: Task Id :
attempt_201203142145_0007_m_000000_0, Status : FAILED
java.lang.RuntimeException: java.lang.ClassNotFoundException:
org.apache.hcatalog.mapreduce.HCatInputFormat
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:866)
at org.apache.hadoop.mapreduce.JobContext.getInputFormatClass(JobContext.java:187)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:723)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.lang.ClassNotFoundException:
org.apache.hcatalog.mapreduce.HCatInputFormat
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:819)
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:864)
... 8 more

We have already made the following changes and still get the message above:

- copy hcatalog-0.2.0*.jar to ${HADOOP_HOME}/lib
- run the hadoop with
-Djava.ext.dir="/usr/local/hcat/:/usr/local/hcat/share/hcatalog/:/usr/local/hcat/share/hcatalog/lib/"
- We also tried -libjars, HADOOP_CLASSPATH but every try is failed.

Can anyone help us to figure out what's going on here?

Regards,
-Nan

Mime
View raw message