Created
August 11, 2014 08:29
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hbase-spark.scala
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| import java.io.{DataOutputStream, ByteArrayOutputStream} | |
| import java.lang.String | |
| import org.apache.hadoop.hbase.client.Scan | |
| import org.apache.hadoop.hbase.HBaseConfiguration | |
| import org.apache.hadoop.hbase.io.ImmutableBytesWritable | |
| import org.apache.hadoop.hbase.client.Result | |
| import org.apache.hadoop.hbase.mapreduce.TableInputFormat | |
| import org.apache.hadoop.hbase.util.Base64 | |
| def convertScanToString(scan: Scan): String = { | |
| val out: ByteArrayOutputStream = new ByteArrayOutputStream | |
| val dos: DataOutputStream = new DataOutputStream(out) | |
| scan.write(dos) | |
| Base64.encodeBytes(out.toByteArray) | |
| } | |
| val conf = HBaseConfiguration.create() | |
| val scan = new Scan() | |
| scan.setCaching(500) | |
| scan.setCacheBlocks(false) | |
| conf.set(TableInputFormat.INPUT_TABLE, "table_name") | |
| conf.set(TableInputFormat.SCAN, convertScanToString(scan)) | |
| val rdd = sc.newAPIHadoopRDD(conf, classOf[TableInputFormat], classOf[ImmutableBytesWritable], classOf[Result]) | |
| rdd.count |
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Did you do anything special to get
scan.write(dos)to work? I do not see#writedefined in the latest version of Scan.java.