本文整理汇总了Java中org.apache.hadoop.hbase.master.HMaster.move方法的典型用法代码示例。如果您正苦于以下问题：Java HMaster.move方法的具体用法？Java HMaster.move怎么用？Java HMaster.move使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hbase.master.HMaster的用法示例。
在下文中一共展示了HMaster.move方法的1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: testDrainingServerOffloading
import org.apache.hadoop.hbase.master.HMaster; //导入方法依赖的package包/类
/**
* Test adding server to draining servers and then move regions off it.
* Make sure that no regions are moved back to the draining server.
* @throws IOException
* @throws KeeperException
*/
@Test // (timeout=30000)
public void testDrainingServerOffloading()
throws IOException, KeeperException {
// I need master in the below.
HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
HRegionInfo hriToMoveBack = null;
// Set first server as draining server.
HRegionServer drainingServer =
setDrainingServer(TEST_UTIL.getMiniHBaseCluster().getRegionServer(0));
try {
final int regionsOnDrainingServer =
drainingServer.getNumberOfOnlineRegions();
Assert.assertTrue(regionsOnDrainingServer > 0);
List<HRegionInfo> hris = drainingServer.getOnlineRegions();
for (HRegionInfo hri : hris) {
// Pass null and AssignmentManager will chose a random server BUT it
// should exclude draining servers.
master.move(hri.getEncodedNameAsBytes(), null);
// Save off region to move back.
hriToMoveBack = hri;
}
// Wait for regions to come back on line again.
waitForAllRegionsOnline();
Assert.assertEquals(0, drainingServer.getNumberOfOnlineRegions());
} finally {
unsetDrainingServer(drainingServer);
}
// Now we've unset the draining server, we should be able to move a region
// to what was the draining server.
master.move(hriToMoveBack.getEncodedNameAsBytes(),
Bytes.toBytes(drainingServer.getServerName().toString()));
// Wait for regions to come back on line again.
waitForAllRegionsOnline();
Assert.assertEquals(1, drainingServer.getNumberOfOnlineRegions());
}