Hi,
I followed this tuorial to run Giraph with Gora (and also Hbase)
http://giraph.apache.org/gora.html
At the end of the tutorial, there is a command line that enable to
calculate the ShortestPath.
hadoop/bin/hadoop jar $GIRAPH_EXAMPLES_JAR
org.apache.giraph.GiraphRunner
-files
/usr/local/giraph/giraph-gora/conf/gora.properties,/usr/local/giraph/giraph-gora/conf/gora-hbase-mapping.xml,/usr/local/hbase/conf/hbase-site.xml
-Dio.serializations=org.apache.hadoop.io.serializer.WritableSerialization,org.apache.hadoop.io.serializer.JavaSerialization
-Dgiraph.gora.datastore.class=org.apache.gora.hbase.store.HBaseStore
-Dgiraph.gora.key.class=java.lang.String
-Dgiraph.gora.persistent.class=org.apache.giraph.io.gora.generated.GEdge
-Dgiraph.gora.start.key=0
-Dgiraph.gora.end.key=10
-Dgiraph.gora.keys.factory.class=org.apache.giraph.io.gora.utils.KeyFactory
-Dgiraph.gora.output.datastore.class=org.apache.gora.hbase.store.HBaseStore
-Dgiraph.gora.output.key.class=java.lang.String
-Dgiraph.gora.output.persistent.class=org.apache.giraph.io.gora.generated.GEdgeResult
-libjars $GIRAPH_GORA_JAR,$GORA_HBASE_JAR,$HBASE_JAR
org.apache.giraph.examples.SimpleShortestPathsComputation
-vif org.apache.giraph.io.gora.GoraGEdgeEdgeInputFormat
-eof org.apache.giraph.io.gora.GoraGEdgeEdgeOutputFormat
-w 1
I have the following error:
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/usr/local/hadoop-2.4.0/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/usr/local/giraph/giraph-gora/target/giraph-gora-1.1.0-SNAPSHOT-jar-with-dependencies.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
14/11/07 14:45:02 WARN util.NativeCodeLoader: Unable to load
native-hadoop library for your platform... using builtin-java classes
where applicable
Exception in thread "main" java.lang.RuntimeException: class
org.apache.giraph.io.gora.GoraGEdgeEdgeInputFormat not
org.apache.giraph.io.VertexInputFormat
at
org.apache.hadoop.conf.Configuration.setClass(Configuration.java:1969)
at
org.apache.giraph.conf.ClassConfOption.set(ClassConfOption.java:182)
at
org.apache.giraph.conf.GiraphConfiguration.setVertexInputFormatClass(GiraphConfiguration.java:250)
at
org.apache.giraph.utils.ConfigurationUtils.populateGiraphConfiguration(ConfigurationUtils.java:315)
at
org.apache.giraph.utils.ConfigurationUtils.parseArgs(ConfigurationUtils.java:209)
at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:74)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
I can't understand how can hadoop get the input (graph or other data)
for this example !!?? and why did I got this error ???
Any help will be greatly appreciated !!
Thank you.
Chahinez
