spark1.0.2读取hbase（CDH0.96.1）上的数据

基本环境：

我是在win7环境下，spark1.0.2，HBase0.9.6.1

使用工具：IDEA14.1， scala 2.11.6， sbt。我现在是测试环境使用的是单节点

1、使用IDEA创建一个sbt的工程后，在build.sbt文件加入配置文件

libraryDependencies +=  "org.apache.spark" % "spark-core_2.10" % "1.0.2" % "provided"
 
libraryDependencies +=  "org.apache.spark" % "spark-streaming_2.10" % "1.0.2" % "provided"
 
libraryDependencies +=  "org.apache.hbase" % "hbase-common" %"0.96.1.1-hadoop2" % "provided"
 
libraryDependencies +=  "org.apache.hbase" % "hbase-client" % "0.96.1.1-hadoop2" % "provided"
 
libraryDependencies +=  "org.apache.hbase" % "hbase-server" % "0.96.1.1-hadoop2" % "provided"

2、创建一个scala Object

对应的路径和表名，列族自己修改

package cn.rcz.bigdata
import org.apache.spark.SparkContext
import org.apache.spark._
import org.apache.hadoop.hbase.HBaseConfiguration
import org.apache.hadoop.hbase.HTableDescriptor
import org.apache.hadoop.hbase.client.HBaseAdmin
import org.apache.hadoop.hbase.mapreduce.TableInputFormat
import org.apache.hadoop.hbase.HColumnDescriptor
import org.apache.hadoop.hbase.util.Bytes
import org.apache.hadoop.hbase.client.Put
import org.apache.hadoop.hbase.client.HTable
import org.apache.hadoop.hbase.client.Result
import org.apache.hadoop.hbase.io.ImmutableBytesWritable
import org.apache.hadoop.hbase.client.Delete
 
/**
 * Created by ptbx on 2015/4/7.
 */
import org.apache.spark.{SparkContext, SparkConf}
import org.apache.spark.SparkContext._
 
    object Test01 extends Serializable{
      def main(args: Array[String]) {
     /*   if (args.length != 2) {
          System.err.println("Usage: LogAnalyzer <input> <output>")
          System.exit(1)
        }*/
        val sc = new SparkContext("spark://master:7077", "SparkHBase01")
 
        val conf = HBaseConfiguration.create()
        conf.set("hbase.zookeeper.property.clientPort", "2181")
        conf.set("hbase.zookeeper.quorum", "master")
        conf.set("hbase.master", "master:60000")
        conf.addResource("/home/hadoop/hbase-0.96.1.1-cdh5.0.2/conf/hbase-site.xml")
        conf.set(TableInputFormat.INPUT_TABLE, "carInfo")
 
        val admin = new HBaseAdmin(conf)
        if (!admin.isTableAvailable("messInfo")) {
          print("Table Not Exists! Create Table")
          val tableDesc = new HTableDescriptor("messInfo")
          tableDesc.addFamily(new HColumnDescriptor("messInfo".getBytes()))
          admin.createTable(tableDesc)
        }
 
        val hbaseRDD = sc.newAPIHadoopRDD(conf, classOf[TableInputFormat],
          classOf[org.apache.hadoop.hbase.io.ImmutableBytesWritable],
          classOf[org.apache.hadoop.hbase.client.Result])
 
        val count = hbaseRDD.count()
        println("HBase RDD Count:" + count)
        hbaseRDD.cache()
 
        val res = hbaseRDD.take(count.toInt)
        for (j <- 1 until count.toInt) {
          println("j: " + j)
          var rs = res(j - 1)._2
          var kvs = rs.raw
          for (kv <- kvs)
            println("rowkey:" + new String(kv.getRow()) +
              " cf:" + new String(kv.getFamily()) +
              " column:" + new String(kv.getQualifier()) +
              " value:" + new String(kv.getValue()))
        }
        System.exit(0)
 
    }
  }

3：打包成jar 提交运行

在doc下， 进入文件目录后，输入sbt

再次输入compile，进入编译然后在输入package

打包后的jar包在项目的out文件夹里面

4、提交到spark上运行

spark 的运行方式有3种，后续文件会有补充

sh spark-submit  --class cn.szkj.bigdata.Test01 --master local[3]  /home/hadoop/work.jar

　　 把输入的值当作参数修改后

def main(args: Array[String]) {
       if (args.length != 9) {
          System.err.println("Usage: LogAnalyzer <masterAddress> <jobname> <masterName> <masterName> <hbase-core-site.xml dir> <tableName> <tableName> <columnFiamly> <columnFiamly>")
 
          System.exit(1)
        }
 
       // val sc = new SparkContext("spark://master:7077", "SparkHBase")
       val sc = new SparkContext(args(0), args(1))
        val conf = HBaseConfiguration.create()
 
        conf.set("hbase.zookeeper.property.clientPort", "2181")
        conf.set("hbase.zookeeper.quorum", args(2))
        conf.set("hbase.master", args(3)+":60000")
        conf.addResource(args(4))
        conf.set(TableInputFormat.INPUT_TABLE, args(5))
 
        val admin = new HBaseAdmin(conf)
        if (!admin.isTableAvailable(args(6))) {
          print("Table Not Exists! Create Table")
          val tableDesc = new HTableDescriptor(args(7))
          tableDesc.addFamily(new HColumnDescriptor(args(8).getBytes()))
 
        }
 
         val hbaseRDD = sc.newAPIHadoopRDD(conf, classOf[TableInputFormat],
          classOf[org.apache.hadoop.hbase.io.ImmutableBytesWritable],
          classOf[org.apache.hadoop.hbase.client.Result])
 
        val count = hbaseRDD.count()
        println("HBase RDD Count:" + count)
        hbaseRDD.cache()
 
        val res = hbaseRDD.take(count.toInt)
        for (j <- 1 to count.toInt) {  //to 是查询所有记录,  until 查询单条记录
          println("j: " + j)
          var rs = res(j - 1)._2
          var kvs = rs.raw
          for (kv <- kvs)
            println("rowkey:" + new String(kv.getRow()) +
              " cf:" + new String(kv.getFamily()) +
              " column:" + new String(kv.getQualifier()) +
              " value:" + new String(kv.getValue()))
        }
        for (j <- 1 until count.toInt){
 
        }
        System.exit(0)
        }