Enabling the co-processor

In this version, the co-processor is loaded dynamically.

Copy the timeline service .jar to HDFS from where HBase can load it. It is needed for the flowrun table creation in the schema creator. The default HDFS location is /hbase/coprocessor.

For example:

hadoop fs -mkdir /hbase/coprocessor hadoop fs -put hadoop-yarn-server-timelineservice-hbase-3.0.0-alpha1-SNAPSHOT.jar /hbase/coprocessor/hadoop-yarn-server-timelineservice.jar

To place the JAR at a different location on HDFS, there also exists a YARN configuration setting called yarn.timeline-service.hbase.coprocessor.jar.hdfs.location, shown as follows:

<property>
  <name>yarn.timeline-service.hbase.coprocessor.jar.hdfs.location</name>
  <value>/custom/hdfs/path/jarName</value>
</property>

Create the timeline service schema using the schema creator tool. For this to happen, we also need to make sure the JARs are all found correctly:

export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:/Users/sridharalla/hbase-1.2.6/lib/:/Users/sridharalla/hadoop-3.1.0/share/hadoop/yarn/timelineservice/

Once we have the classpath corrected, we can create the HBase schema/tables using a simple command, shown as follows:

./bin/hadoop org.apache.hadoop.yarn.server.timelineservice.storage.TimelineSchemaCreator -create -skipExistingTable

The following is the HBase schema created as a result of the preceding command: