Re: Running giraph custom code on CDH5.1.0

[Eli Reisman <ap...@gmail.com>]

The interface/class change there means you are running a Hadoop cluster
that doesn't match your Giraph build. You might take a look at the Giraph
POM and see if there's a Maven build profile thats better suited to your
your Hadoop version. On CDH5 Hadoop cluster,  the hadoop_yarn profile is
likely to be your only option.

Good luck,

Eli



On Thu, Aug 21, 2014 at 5:08 PM, Mohit Singh <mo...@gmail.com> wrote:

> Hi,
>   So, I have Hadoop 2.3.0-cdh5.1.0 installed on my cluster... and I
> compiled giraph thru the following command.. mvn clean package -DskipTests
> -Dhadoop=non_secure -Phadoop_2.0.0
> So, the compilation worked just fine and then the pagerank benchmark also
> succeeded..
> So, I am guessing giraph compiled just fine..
>
>
> Now, I am trying to run my code..
> hadoop jar graphAnalytics-0.0.1-SNAPSHOT-jar-with-dependencies.jar
> org.apache.giraph.GiraphRunner
>  -Dgiraph.zkList=srv-110-07:2181,srv-110-08:2181,srv-210-08:2181
> org.examples.graphAnalytics.PageRankVertex -w 1 -vif
> org.examples.graphAnalytics.PageRankInputFormat
>
> And I am getting this error:
> Exception in thread "main" java.lang.IncompatibleClassChangeError: Found
> interface org.apache.hadoop.mapreduce.JobContext, but class was expected
>  at
> org.apache.giraph.bsp.BspOutputFormat.checkOutputSpecs(BspOutputFormat.java:43)
> at
> org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:458)
>  at
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:343)
> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1295)
>  at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1292)
> at java.security.AccessController.doPrivileged(Native Method)
>  at javax.security.auth.Subject.doAs(Subject.java:415)
> at....
>
> I know, its an incomplete command but its already complaining.. :-/
>
> My POM file looks like :
>
> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="
> http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="
> http://maven.apache.org/POM/4.0.0
> http://maven.apache.org/xsd/maven-4.0.0.xsd">
>
>   <modelVersion>4.0.0</modelVersion>
>
>   <groupId>org.rdio.graphanalytics</groupId>
>
>   <artifactId>graphAnalytics</artifactId>
>
>   <version>0.0.1-SNAPSHOT</version>
>
>   <name>Graph Analytics Algorithms</name>
>
>   <description>Package for Graph Analytics Algorithms
>
> </description>
>
> <repositories>
>
>     <repository>
>
>       <id>cloudera</id>
>
>       <url>https://repository.cloudera.com/artifactory/cloudera-repos/</
> url>
>
>     </repository>
>
>   </repositories>
>
>   <dependencies>
>
>   <dependency>
>
>    <groupId>org.apache.giraph</groupId>
>
>    <artifactId>giraph-core</artifactId>
>
>    <version>1.0.0</version>
>
>   </dependency>
>
>    <dependency>
>
>             <groupId>junit</groupId>
>
>             <artifactId>junit-dep</artifactId>
>
>             <version>4.8.2</version>
>
>      </dependency>
>
>    <dependency>
>
> *   <groupId>org.apache.hadoop</groupId>*
>
> *   <artifactId>hadoop-client</artifactId>*
>
> *   <version>2.3.0-cdh5.1.0</version>*
>
>    </dependency>
>
>   </dependencies>
>
>   <build>
>
>     <plugins>
>
>     <plugin>
>
>             <groupId>org.apache.maven.plugins</groupId>
>
>             <artifactId>maven-compiler-plugin</artifactId>
>
>             <version>2.1</version>
>
>             <configuration>
>
>                 <source>1.6</source>
>
>                 <target>1.6</target>
>
>             </configuration>
>
>         </plugin>
>
>         <plugin>
>
>             <groupId>org.apache.maven.plugins</groupId>
>
>             <artifactId>maven-assembly-plugin</artifactId>
>
>             <version>2.4</version>
>
>             <configuration>
>
>                 <descriptorRefs>
>
>                     <descriptorRef>jar-with-dependencies</descriptorRef>
>
>                 </descriptorRefs>
>
>
>             </configuration>
>
>             <executions>
>
>                 <execution>
>
>                     <id>assemble-all</id>
>
>                     <phase>package</phase>
>
>                     <goals>
>
>                         <goal>single</goal>
>
>                     </goals>
>
>                 </execution>
>
>             </executions>
>
>         </plugin>
>
>     </plugins>
>
>   </build>
>
> </project>
>
>
> How do i resolve this?
> Thanks
>
> --
> Mohit
>
> "When you want success as badly as you want the air, then you will get it.
> There is no other secret of success."
> -Socrates
>