Hbase-mapreduce-hbase as an example of an output source | That Yi-Wipe smile

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blog post title:Hbase-mapreduce-hbase As an example of an output source | That Yi-wipe smile
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Directly on the code, does not explain 、、、

Package Com.itdog8.cloud.hbase.mr.test;import Java.io.ioexception;import Org.apache.commons.logging.log;import Org.apache.commons.logging.logfactory;import Org.apache.hadoop.conf.configuration;import Org.apache.hadoop.conf.configured;import Org.apache.hadoop.fs.path;import Org.apache.hadoop.hbase.hbaseconfiguration;import Org.apache.hadoop.hbase.client.put;import Org.apache.hadoop.hbase.io.immutablebyteswritable;import Org.apache.hadoop.hbase.mapreduce.TableOutputFormat; Import Org.apache.hadoop.hbase.util.bytes;import Org.apache.hadoop.io.longwritable;import Org.apache.hadoop.io.text;import Org.apache.hadoop.mapreduce.job;import Org.apache.hadoop.mapreduce.Mapper; Import Org.apache.hadoop.mapreduce.lib.input.fileinputformat;import Org.apache.hadoop.util.GenericOptionsParser; Import Org.apache.hadoop.util.tool;import Org.apache.hadoop.util.toolrunner;import com.sun.corba.se.spi.ior.writeable;/** * Testhbaseassinkmapreducemainclass * * * * * * * * * * * @author that yi smile * @date 2015-07-31 10:52:21 * */public CLass Testhbaseassinkmapreducemainclass extends configured implements Tool {private static final Log _log = Logfactory.get Log (Testhbaseassinkmapreducemainclass.class); public static class Examplesinkmapper extends Mapper<longwritable, Text, immutablebyteswritable, put> {private Str  ing rowkey = null;  Private byte[] family = null;  Private byte[] qualifier = null;  Private byte[] val = null;   Private Long ts = System.currenttimemillis ();   @Override protected void Map (longwritable key, Text value, Context context) throws IOException, Interruptedexception {       try {//logical processing//Rowkey = "";//family = null;//Qualifier = null;//val = null;    Put put put = new put (Bytes.tobytes (rowkey), TS);       Put.add (family, qualifier, Val);   Context.write (New Immutablebyteswritable (Bytes.tobytes (Rowkey)), put);   } catch (Exception e) {e.printstacktrace (); }}} @Override public int run (string[] args) throws Exception {if (args.length! = 3) {_LOG.INFO ("Usage:3 parameters needed!\nhadoop jar Hbase-build-import-1.0.0.jar <inputPath><tableName><   Columns> ");  System.exit (1);  } String InputPath = Args[0];  String tableName = args[1];   String columns = args[2];  HBase configuration Configuration conf = Hbaseconfiguration.create ();  Conf.set ("Hbase.zookeeper.quorum", "a234-198.hadoop.com,a234-197.hadoop.com,a234-196.hadoop.com");   Conf.set ("Hbase.zookeeper.property.clientPort", "2181");  Job Job Job = new Job (conf, "Import from File" + InputPath + "into table" + tableName);  Job.setjarbyclass (Testhbaseassinkmapreducemainclass.class);  Job.setmapperclass (Examplesinkmapper.class);  Job.setoutputformatclass (Tableoutputformat.class);  Job.getconfiguration (). Set (tableoutputformat.output_table, tableName);  Job.setoutputkeyclass (Immutablebyteswritable.class);  Job.setoutputvalueclass (Writeable.class);   Job.setnumreducetasks (0);   Add Input path Fileinputformat.addinputpath (Job, New Path (InputPath)); REturn job.waitforcompletion (True)? 0:1;  public static void Main (string[] args) throws IOException {configuration conf = new Configuration ();   string[] Otherargs = new Genericoptionsparser (conf, args). Getremainingargs ();  int retVal = 1;  try {retVal = Toolrunner.run (conf, new Testhbaseassinkmapreducemainclass (), Otherargs);  } catch (Exception e) {e.printstacktrace (); } system.exit (RetVal); } }

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Hbase-mapreduce-hbase as an example of an output source | That Yi-Wipe smile