Hi All, i'm running a mapReduce job - copying from Hbase table and putting into HDFS, ansd running into error. Any ideas on this ? Code snippet : public class ProductAnalyzer extends Configured implements Tool {
.....
public static void main(String[] args) throws Exception {
System.out.println(" in main111");
System.exit(ToolRunner.run(new Configuration(), new ProductAnalyzer(), args));
}
public int run(String[] args) throws Exception {
System.out.println(" In run ");
String table = "sales_fact";
String output = "/tmp/exercise5/output1";
... }}
Command : HADOOP_CLASSPATH=$(ls -1 /usr/hdp/current/hbase-client/lib/* | tr '\n', ':') hadoop jar mr.jar hbase.labfiles.Exercise5.ProductAnalyzer -libjars $(ls -1 /usr/hdp/current/hbase-client/lib/* | tr '\n', ',') Error : WARNING: Use "yarn jar" to launch YARN applications.
in main111
Exception in thread "main" java.lang.IllegalArgumentException: File name can't be empty string
at org.apache.hadoop.util.GenericOptionsParser.validateFiles(GenericOptionsParser.java:390)
at org.apache.hadoop.util.GenericOptionsParser.processGeneralOptions(GenericOptionsParser.java:299)
at org.apache.hadoop.util.GenericOptionsParser.parseGeneralOptions(GenericOptionsParser.java:487)
at org.apache.hadoop.util.GenericOptionsParser.<init>(GenericOptionsParser.java:170)
at org.apache.hadoop.util.GenericOptionsParser.<init>(GenericOptionsParser.java:153)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at hbase.labfiles.Exercise5.ProductAnalyzer.main(ProductAnalyzer.java:71)
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.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136) In calling -> System.exit(ToolRunner.run(new Configuration(), new ProductAnalyzer(), args));
in main(), the program errors out run() - is not being called.. Any ideas ?
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