I am trying to write a Spark program that reads data from HBase and store it in DataFrame.
I am able to run it perfectly with hbase-site.xml in the $SPARK_HOME/conf folder, but I am facing few issues here. Issue 1 The first issue is passing hbase-site.xml location with the --files parameter submitted through client mode (it works in cluster mode). When I removed hbase-site.xml from $SPARK_HOME/conf and tried to execute it in client mode by passing with the --files parameter over YARN I keep getting the an exception (which I think means it is not taking the ZooKeeper configuration from hbase-site.xml. spark-submit \ --master yarn \ --deploy-mode client \ --files /home/siddesh/hbase-site.xml \ --class com.orzota.rs.json.HbaseConnector \ --packages com.hortonworks:shc:1.0.0-2.0-s_2.11 \ --repositories http://repo.hortonworks.com/content/groups/public/ \ target/scala-2.11/test-0.1-SNAPSHOT.jar at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1125) 18/02/22 01:43:09 INFO ClientCnxn: Opening socket connection to server localhost/0:0:0:0:0:0:0:1:2181. Will not attempt to authenticate using SASL (unknown error) 18/02/22 01:43:09 WARN ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1125) However it works good when I run it in cluster mode. Issue 2 Passing the HBase configuration details through the Spark session, which I can't get to work in both client and cluster mode. Instead of passing the entire hbase-site.xml I am trying to add the configuration directly in the code by adding it as a configuration parameter in the SparkSession, e.g.: val spark = SparkSession .builder() .appName(name) .config("hbase.zookeeper.property.clientPort", "2181") .config("hbase.zookeeper.quorum", "ip1,ip2,ip3") .config("spark.hbase.host","zookeeperquorum") .getOrCreate() val json_df = spark.read.option("catalog",catalog_read). format("org.apache.spark.sql.execution.datasources.hbase"). load() This is not working in cluster mode either. Can anyone help me with a solution or explanation why this is happening are there any workarounds?
