本文整理汇总了Java中org.apache.hadoop.hdfs.DFSTestUtil.waitForDatanodeState方法的典型用法代码示例。如果您正苦于以下问题：Java DFSTestUtil.waitForDatanodeState方法的具体用法？Java DFSTestUtil.waitForDatanodeState怎么用？Java DFSTestUtil.waitForDatanodeState使用的例子？那么恭喜您, 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.hdfs.DFSTestUtil的用法示例。
在下文中一共展示了DFSTestUtil.waitForDatanodeState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: testDecommissionDeadDN
import org.apache.hadoop.hdfs.DFSTestUtil; //导入方法依赖的package包/类
/**
* Verify the support for decommissioning a datanode that is already dead.
* Under this scenario the datanode should immediately be marked as
* DECOMMISSIONED
*/
@Test(timeout=120000)
public void testDecommissionDeadDN() throws Exception {
Logger log = Logger.getLogger(DecommissionManager.class);
log.setLevel(Level.DEBUG);
DatanodeID dnID = cluster.getDataNodes().get(0).getDatanodeId();
String dnName = dnID.getXferAddr();
DataNodeProperties stoppedDN = cluster.stopDataNode(0);
DFSTestUtil.waitForDatanodeState(cluster, dnID.getDatanodeUuid(),
false, 30000);
FSNamesystem fsn = cluster.getNamesystem();
final DatanodeManager dm = fsn.getBlockManager().getDatanodeManager();
DatanodeDescriptor dnDescriptor = dm.getDatanode(dnID);
decommissionNode(fsn, localFileSys, dnName);
dm.refreshNodes(conf);
BlockManagerTestUtil.recheckDecommissionState(dm);
assertTrue(dnDescriptor.isDecommissioned());
// Add the node back
cluster.restartDataNode(stoppedDN, true);
cluster.waitActive();
// Call refreshNodes on FSNamesystem with empty exclude file to remove the
// datanode from decommissioning list and make it available again.
writeConfigFile(localFileSys, excludeFile, null);
dm.refreshNodes(conf);
}