Our Community is getting an upgrade! To get everything ready for the relaunch, we’ll be placing the site in read-only mode starting September 21st.
We really appreciate your understanding while we get things set up behind the scenes. Catch up on all the exciting details about the move here.
Need help or have questions? Drop us a line at [email protected]
Created 12-23-2016 12:23 AM
Hi - i've written code to add table to HBase (HDP 2.4), the code is not compiling...
Import Statements :
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.util.Bytes;
Command :
javac hbase/labfiles/Exercise3/HBase_SchemaTester.java
Error is as shown below ->
[root@sandbox ~]# javac hbase/labfiles/Exercise3/HBase_SchemaTester.java hbase/labfiles/Exercise3/HBase_SchemaTester.java:6: error: package org.apache.hadoop.hbase does not exist import org.apache.hadoop.hbase.HBaseConfiguration; ^ hbase/labfiles/Exercise3/HBase_SchemaTester.java:7: error: package org.apache.hadoop.hbase does not exist import org.apache.hadoop.hbase.HColumnDescriptor; ^ hbase/labfiles/Exercise3/HBase_SchemaTester.java:8: error: package org.apache.hadoop.hbase does not exist import org.apache.hadoop.hbase.HTableDescriptor; ^ hbase/labfiles/Exercise3/HBase_SchemaTester.java:9: error: package org.apache.hadoop.hbase.client does not exist import org.apache.hadoop.hbase.client.HBaseAdmin; ^ hbase/labfiles/Exercise3/HBase_SchemaTester.java:10: error: package org.apache.hadoop.hbase.util does not exist import org.apache.hadoop.hbase.util.Bytes;
-----------------------------
Which Additional jars do i need to add to Classpath ?
I've already added following Hbase & Hadoop specific jars to my classpath.
/usr/hdp/current/hbase-regionserver/lib/*.jar
/usr/hdp/current/hbase-master/lib*.jar
/usr/hdp/2.4.0.0-169/hbase/lib/*.jar
/usr/hdp/2.4.0.0-169/hadoop/lib/*.jar
/usr/hdp/current/hbase-client/lib/*.jar
My Classpath currently looks like this ->
---------------------------
[root@sandbox ~]# echo $CLASSPATH /usr/hdp/current/hbase-regionserver/lib/*.jar:/usr/hdp/current/hbase-master/lib*.jar:/usr/hdp/2.4.0.0-169/hbase/lib/*.jar:/usr/hdp/2.4.0.0-169/hadoop/lib/*.jar:/usr/hdp/current/hbase-client/lib/*.jar:/usr/hdp/2.4.0.0-169/hadoop/conf:/usr/hdp/2.4.0.0-169/hadoop/lib/*:/usr/hdp/2.4.0.0-169/hadoop/.//*:/usr/hdp/2.4.0.0-169/hadoop-hdfs/./:/usr/hdp/2.4.0.0-169/hadoop-hdfs/lib/*:/usr/hdp/2.4.0.0-169/hadoop-hdfs/.//*:/usr/hdp/2.4.0.0-169/hadoop-yarn/lib/*:/usr/hdp/2.4.0.0-169/hadoop-yarn/.//*:/usr/hdp/2.4.0.0-169/hadoop-mapreduce/lib/*:/usr/hdp/2.4.0.0-169/hadoop-mapreduce/.//*::mysql-connector-java-5.1.17.jar:mysql-connector-java-5.1.31-bin.jar:mysql-connector-java.jar:/usr/hdp/2.4.0.0-169/tez/*:/usr/hdp/2.4.0.0-169/tez/lib/*:/usr/hdp/2.4.0.0-169/tez/conf
Created 12-23-2016 12:53 AM
@Karan Alang Here is the documentation from javac classpath:
Classpath entries that are neither directories nor archives (.zip or .jar files) nor * are ignored.
So, you should use just a simple '*' instead of '*.jar'. I believe hbase-client/lib/* would be enough. You also may use --verbose to track what javac is doing.
Created 12-23-2016 12:53 AM
@Karan Alang Here is the documentation from javac classpath:
Classpath entries that are neither directories nor archives (.zip or .jar files) nor * are ignored.
So, you should use just a simple '*' instead of '*.jar'. I believe hbase-client/lib/* would be enough. You also may use --verbose to track what javac is doing.