本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.NameNode.getRpcServer方法的典型用法代码示例。如果您正苦于以下问题：Java NameNode.getRpcServer方法的具体用法？Java NameNode.getRpcServer怎么用？Java NameNode.getRpcServer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.server.namenode.NameNode的用法示例。
在下文中一共展示了NameNode.getRpcServer方法的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: getRPCServer
import org.apache.hadoop.hdfs.server.namenode.NameNode; //导入方法依赖的package包/类
private static NamenodeProtocols getRPCServer(NameNode namenode)
throws IOException {
final NamenodeProtocols np = namenode.getRpcServer();
if (np == null) {
throw new RetriableException("Namenode is in startup mode");
}
return np;
}
示例2: testRaceWhileNNStartup
import org.apache.hadoop.hdfs.server.namenode.NameNode; //导入方法依赖的package包/类
/**
* Make sure a RetriableException is thrown when rpcServer is null in
* NamenodeWebHdfsMethods.
*/
@Test
public void testRaceWhileNNStartup() throws Exception {
MiniDFSCluster cluster = null;
final Configuration conf = WebHdfsTestUtil.createConf();
try {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
cluster.waitActive();
final NameNode namenode = cluster.getNameNode();
final NamenodeProtocols rpcServer = namenode.getRpcServer();
Whitebox.setInternalState(namenode, "rpcServer", null);
final Path foo = new Path("/foo");
final FileSystem webHdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
WebHdfsFileSystem.SCHEME);
try {
webHdfs.mkdirs(foo);
fail("Expected RetriableException");
} catch (RetriableException e) {
GenericTestUtils.assertExceptionContains("Namenode is in startup mode",
e);
}
Whitebox.setInternalState(namenode, "rpcServer", rpcServer);
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}
示例3: testRetryWhileNNStartup
import org.apache.hadoop.hdfs.server.namenode.NameNode; //导入方法依赖的package包/类
/**
* Make sure the WebHdfsFileSystem will retry based on RetriableException when
* rpcServer is null in NamenodeWebHdfsMethods while NameNode starts up.
*/
@Test (timeout=120000)
public void testRetryWhileNNStartup() throws Exception {
final Configuration conf = DFSTestUtil.newHAConfiguration(LOGICAL_NAME);
MiniDFSCluster cluster = null;
final Map<String, Boolean> resultMap = new HashMap<String, Boolean>();
try {
cluster = new MiniDFSCluster.Builder(conf).nnTopology(topo)
.numDataNodes(0).build();
HATestUtil.setFailoverConfigurations(cluster, conf, LOGICAL_NAME);
cluster.waitActive();
cluster.transitionToActive(0);
final NameNode namenode = cluster.getNameNode(0);
final NamenodeProtocols rpcServer = namenode.getRpcServer();
Whitebox.setInternalState(namenode, "rpcServer", null);
new Thread() {
@Override
public void run() {
boolean result = false;
FileSystem fs = null;
try {
fs = FileSystem.get(WEBHDFS_URI, conf);
final Path dir = new Path("/test");
result = fs.mkdirs(dir);
} catch (IOException e) {
result = false;
} finally {
IOUtils.cleanup(null, fs);
}
synchronized (TestWebHDFSForHA.this) {
resultMap.put("mkdirs", result);
TestWebHDFSForHA.this.notifyAll();
}
}
}.start();
Thread.sleep(1000);
Whitebox.setInternalState(namenode, "rpcServer", rpcServer);
synchronized (this) {
while (!resultMap.containsKey("mkdirs")) {
this.wait();
}
Assert.assertTrue(resultMap.get("mkdirs"));
}
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}