本文整理汇总了Java中org.apache.hadoop.hdfs.MiniDFSCluster.copyNameDirs方法的典型用法代码示例。如果您正苦于以下问题：Java MiniDFSCluster.copyNameDirs方法的具体用法？Java MiniDFSCluster.copyNameDirs怎么用？Java MiniDFSCluster.copyNameDirs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.hdfs.MiniDFSCluster的用法示例。
在下文中一共展示了MiniDFSCluster.copyNameDirs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: testDNWithInvalidStorageWithHA
import org.apache.hadoop.hdfs.MiniDFSCluster; //导入方法依赖的package包/类
@Test
public void testDNWithInvalidStorageWithHA() throws Exception {
MiniDFSNNTopology top = new MiniDFSNNTopology()
.addNameservice(new MiniDFSNNTopology.NSConf("ns1")
.addNN(new MiniDFSNNTopology.NNConf("nn0").setClusterId("cluster-1"))
.addNN(new MiniDFSNNTopology.NNConf("nn1").setClusterId("cluster-1")));
top.setFederation(true);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).nnTopology(top)
.numDataNodes(0).build();
try {
cluster.startDataNodes(conf, 1, true, null, null);
// let the initialization be complete
Thread.sleep(10000);
DataNode dn = cluster.getDataNodes().get(0);
assertTrue("Datanode should be running", dn.isDatanodeUp());
assertEquals("BPOfferService should be running", 1,
dn.getAllBpOs().length);
DataNodeProperties dnProp = cluster.stopDataNode(0);
cluster.getNameNode(0).stop();
cluster.getNameNode(1).stop();
Configuration nn1 = cluster.getConfiguration(0);
Configuration nn2 = cluster.getConfiguration(1);
// setting up invalid cluster
StartupOption.FORMAT.setClusterId("cluster-2");
DFSTestUtil.formatNameNode(nn1);
MiniDFSCluster.copyNameDirs(FSNamesystem.getNamespaceDirs(nn1),
FSNamesystem.getNamespaceDirs(nn2), nn2);
cluster.restartNameNode(0, false);
cluster.restartNameNode(1, false);
cluster.restartDataNode(dnProp);
// let the initialization be complete
Thread.sleep(10000);
dn = cluster.getDataNodes().get(0);
assertFalse("Datanode should have shutdown as only service failed",
dn.isDatanodeUp());
} finally {
cluster.shutdown();
}
}