I'm able to run simple 'create' and 'put' to add data to rows (I'm using HBase - the Definitive Guide) but it's failing when I try to run the Java program shown below: import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.util.Bytes;
import java.io.IOException;
public class PutExample {
public static void main(String[] args) throws IOException {
Configuration conf = HBaseConfiguration.create();
HTable table = new HTable(conf, "jptesttable");
Put put = new Put(Bytes.toBytes("row1"));
put.add(Bytes.toBytes("colfam1"),Bytes.toBytes("qual1"),Bytes.toBytes("val1"));
put.add(Bytes.toBytes("colfam1"),Bytes.toBytes("qual2"),Bytes.toBytes("val2"));
table.put(put);
table.close();
}
} I'm pretty sure I have all the libraries I need (plus some I don't need): hbase.jar commons-logging-1.1.1.jar log4j-1.2.17.jar zookeeper.jar commons-lang-2.5.jar commons-configuration-1.6.jar slf4j-api-1.6.1.jar slf4j-log4j12-1.6.1.jar hadoop.core.jar core.3.1.1.jar hadoop.common-2.0.0-cdh4.1.1.jar hbase-0.92.1-cdh4.1.1-security.jar and usr/lib/hbase/conf in the path I haven't changed the hbase.site.xml file: <configuration>
<!-- Changing the default port for REST since it conflicts with yarn nodemanager -->
<property>
<name>hbase.rest.port</name>
<value>8070</value>
<description>The port for the HBase REST server.</description>
</property>
<property>
<name>hbase.rootdir</name>
<value>hdfs://localhost:8020/hbase</value>
</property>
</configuration> => Is there anything I can do to get this to work? Here's the error log, Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/collect/Maps at org.apache.hadoop.metrics2.lib.MetricsRegistry.<init>(MetricsRegistry.java:42) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.<init>(MetricsSystemImpl.java:87) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.<init>(MetricsSystemImpl.java:133) at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.<init>(DefaultMetricsSystem.java:38) at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.<clinit>(DefaultMetricsSystem.java:36) at org.apache.hadoop.security.UserGroupInformation$UgiMetrics.create(UserGroupInformation.java:97) at org.apache.hadoop.security.UserGroupInformation.<clinit>(UserGroupInformation.java:190) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.hbase.util.Methods.call(Methods.java:37) at org.apache.hadoop.hbase.security.User.call(User.java:586) at org.apache.hadoop.hbase.security.User.callStatic(User.java:576) at org.apache.hadoop.hbase.security.User.access$400(User.java:50) at org.apache.hadoop.hbase.security.User$SecureHadoopUser.<init>(User.java:393) at org.apache.hadoop.hbase.security.User$SecureHadoopUser.<init>(User.java:388) at org.apache.hadoop.hbase.security.User.getCurrent(User.java:139) at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionKey.<init>(HConnectionManager.java:412) at org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:182) at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:196) at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:173) at PutExample.main(PutExample.java:17) Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps 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) ... 23 more thanks, jp
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