本文整理汇总了Java中org.apache.hadoop.hdfs.MiniDFSCluster.addNameNode方法的典型用法代码示例。如果您正苦于以下问题:Java MiniDFSCluster.addNameNode方法的具体用法?Java MiniDFSCluster.addNameNode怎么用?Java MiniDFSCluster.addNameNode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.addNameNode方法的2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: testClusterIdMismatch
import org.apache.hadoop.hdfs.MiniDFSCluster; //导入方法依赖的package包/类
@Test
public void testClusterIdMismatch() throws Exception {
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
.nnTopology(MiniDFSNNTopology.simpleFederatedTopology(2))
.build();
try {
cluster.waitActive();
DataNode dn = cluster.getDataNodes().get(0);
BPOfferService [] bposs = dn.getAllBpOs();
LOG.info("dn bpos len (should be 2):" + bposs.length);
Assert.assertEquals("should've registered with two namenodes", bposs.length,2);
// add another namenode
cluster.addNameNode(conf, 9938);
Thread.sleep(500);// lets wait for the registration to happen
bposs = dn.getAllBpOs();
LOG.info("dn bpos len (should be 3):" + bposs.length);
Assert.assertEquals("should've registered with three namenodes", bposs.length,3);
// change cluster id and another Namenode
StartupOption.FORMAT.setClusterId("DifferentCID");
cluster.addNameNode(conf, 9948);
NameNode nn4 = cluster.getNameNode(3);
assertNotNull("cannot create nn4", nn4);
Thread.sleep(500);// lets wait for the registration to happen
bposs = dn.getAllBpOs();
LOG.info("dn bpos len (still should be 3):" + bposs.length);
Assert.assertEquals("should've registered with three namenodes", 3, bposs.length);
} finally {
cluster.shutdown();
}
}
示例2: testRefreshNamenodes
import org.apache.hadoop.hdfs.MiniDFSCluster; //导入方法依赖的package包/类
@Test
public void testRefreshNamenodes() throws IOException {
// Start cluster with a single NN and DN
Configuration conf = new Configuration();
MiniDFSCluster cluster = null;
try {
MiniDFSNNTopology topology = new MiniDFSNNTopology()
.addNameservice(new NSConf("ns1").addNN(
new NNConf(null).setIpcPort(nnPort1)))
.setFederation(true);
cluster = new MiniDFSCluster.Builder(conf)
.nnTopology(topology)
.build();
DataNode dn = cluster.getDataNodes().get(0);
assertEquals(1, dn.getAllBpOs().length);
cluster.addNameNode(conf, nnPort2);
assertEquals(2, dn.getAllBpOs().length);
cluster.addNameNode(conf, nnPort3);
assertEquals(3, dn.getAllBpOs().length);
cluster.addNameNode(conf, nnPort4);
// Ensure a BPOfferService in the datanodes corresponds to
// a namenode in the cluster
Set<InetSocketAddress> nnAddrsFromCluster = Sets.newHashSet();
for (int i = 0; i < 4; i++) {
assertTrue(nnAddrsFromCluster.add(
cluster.getNameNode(i).getNameNodeAddress()));
}
Set<InetSocketAddress> nnAddrsFromDN = Sets.newHashSet();
for (BPOfferService bpos : dn.getAllBpOs()) {
for (BPServiceActor bpsa : bpos.getBPServiceActors()) {
assertTrue(nnAddrsFromDN.add(bpsa.getNNSocketAddress()));
}
}
assertEquals("",
Joiner.on(",").join(
Sets.symmetricDifference(nnAddrsFromCluster, nnAddrsFromDN)));
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}