本文整理汇总了Java中org.apache.hadoop.hbase.mapreduce.Export类的典型用法代码示例。如果您正苦于以下问题：Java Export类的具体用法？Java Export怎么用？Java Export使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
Export类属于org.apache.hadoop.hbase.mapreduce包，在下文中一共展示了Export类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: main
import org.apache.hadoop.hbase.mapreduce.Export; //导入依赖的package包/类
public static void main(String[] args) {
ProgramDriver programDriver = new ProgramDriver();
int exitCode = -1;
try {
programDriver.addClass("wordcount-hbase", WordCountHBase.class,
"A map/reduce program that counts the words in the input files.");
programDriver.addClass("export-table", Export.class,
"A map/reduce program that exports a table to a file.");
//programDriver.addClass("cellcounter", CellCounter.class, "Count them cells!");
programDriver.driver(args);
exitCode = programDriver.run(args);
} catch (Throwable e) {
e.printStackTrace();
}
System.exit(exitCode);
}
示例2: main
import org.apache.hadoop.hbase.mapreduce.Export; //导入依赖的package包/类
public static void main(String[] args) {
ProgramDriver programDriver = new ProgramDriver();
int exitCode = -1;
try {
programDriver.addClass("export-table", Export.class,
"A map/reduce program that exports a table to a file.");
programDriver.addClass("import-table", Import.class,
"A map/reduce program that imports a table to a file.");
programDriver.driver(args);
exitCode = programDriver.run(args);
} catch (Throwable e) {
e.printStackTrace();
}
System.exit(exitCode);
}
示例3: testMapReduce
import org.apache.hadoop.hbase.mapreduce.Export; //导入依赖的package包/类
@Test
@Category(KnownGap.class)
public void testMapReduce() throws IOException, ClassNotFoundException, InterruptedException {
Table oldTable = getConnection().getTable(TABLE_NAME);
// Put a value.
byte[] rowKey = dataHelper.randomData("testrow-");
byte[] qual = dataHelper.randomData("testQualifier-");
byte[] value = dataHelper.randomData("testValue-");
Put put = new Put(rowKey);
put.addColumn(COLUMN_FAMILY, qual, value);
oldTable.put(put);
// Assert the value is there.
Get get = new Get(rowKey);
Result result = oldTable.get(get);
List<Cell> cells = result.listCells();
Assert.assertEquals(1, cells.size());
Assert.assertArrayEquals(CellUtil.cloneValue(cells.get(0)), value);
// Run the export.
Configuration conf = getConnection().getConfiguration();
//conf.set("fs.defaultFS", "file:///");
FileSystem dfs = IntegrationTests.getMiniCluster().getFileSystem();
String tempDir = "hdfs://" + dfs.getCanonicalServiceName() + "/tmp/backup";
String[] args = new String[]{
TABLE_NAME.getNameAsString(),
tempDir
};
Job job = Export.createSubmittableJob(conf, args);
// So it looks for jars in the local FS, not HDFS.
job.getConfiguration().set("fs.defaultFS", "file:///");
Assert.assertTrue(job.waitForCompletion(true));
// Create new table.
TableName newTableName = IntegrationTests.newTestTableName();
Table newTable = getConnection().getTable(newTableName);
// Change for method in IntegrationTests
Admin admin = getConnection().getAdmin();
HColumnDescriptor hcd = new HColumnDescriptor(IntegrationTests.COLUMN_FAMILY);
HTableDescriptor htd = new HTableDescriptor(newTableName);
htd.addFamily(hcd);
admin.createTable(htd);
// Run the import.
args = new String[]{
newTableName.getNameAsString(),
tempDir
};
job = Import.createSubmittableJob(conf, args);
job.getConfiguration().set("fs.defaultFS", "file:///");
Assert.assertTrue(job.waitForCompletion(true));
// Assert the value is there.
get = new Get(rowKey);
result = newTable.get(get);
cells = result.listCells();
Assert.assertEquals(1, cells.size());
Assert.assertArrayEquals(CellUtil.cloneValue(cells.get(0)), value);
}