@Test(expected = FileNotFoundException.class)
public final void testNoSuchFile() throws Exception {
QueryIdFactory.reset();
SubQueryId schid = QueryIdFactory.newSubQueryId(QueryIdFactory.newQueryId());
QueryUnitId qid1 = QueryIdFactory.newQueryUnitId(schid);
QueryUnitId qid2 = QueryIdFactory.newQueryUnitId(schid);
File qid1Dir = new File(TEST_DATA + "/" + qid1.toString() + "/out");
qid1Dir.mkdirs();
File qid2Dir = new File(TEST_DATA + "/" + qid2.toString() + "/out");
qid2Dir.mkdirs();
Random rnd = new Random();
FileWriter writer = new FileWriter(qid1Dir + "/" + "testHttp");
String watermark1 = "test_" + rnd.nextInt();
writer.write(watermark1);
writer.flush();
writer.close();
writer = new FileWriter(qid2Dir + "/" + "testHttp");
String watermark2 = "test_" + rnd.nextInt();
writer.write(watermark2);
writer.flush();
writer.close();
InterDataRetriever ret = new InterDataRetriever();
HttpDataServer server = new HttpDataServer(NetUtils.createSocketAddr("127.0.0.1:0"), ret);
server.start();
ret.register(qid1, qid1Dir.getPath());
InetSocketAddress addr = server.getBindAddress();
assertDataRetrival(qid1, addr.getPort(), watermark1);
ret.unregister(qid1);
assertDataRetrival(qid1, addr.getPort(), watermark1);
}
/** Initialize SecondaryNameNode. */
private void initialize(Configuration conf) throws IOException {
// initiate Java VM metrics
JvmMetrics.init("SecondaryNameNode", conf.get("session.id"));
// Create connection to the namenode.
shouldRun = true;
nameNodeAddr = NameNode.getAddress(conf);
this.conf = conf;
this.namenode =
(NamenodeProtocol)
RPC.waitForProxy(
NamenodeProtocol.class, NamenodeProtocol.versionID, nameNodeAddr, conf);
// initialize checkpoint directories
fsName = getInfoServer();
checkpointDirs = FSImage.getCheckpointDirs(conf, "/tmp/hadoop/dfs/namesecondary");
checkpointEditsDirs = FSImage.getCheckpointEditsDirs(conf, "/tmp/hadoop/dfs/namesecondary");
checkpointImage = new CheckpointStorage(conf);
checkpointImage.recoverCreate(checkpointDirs, checkpointEditsDirs);
// Initialize other scheduling parameters from the configuration
checkpointPeriod = conf.getLong("fs.checkpoint.period", 3600);
checkpointSize = conf.getLong("fs.checkpoint.size", 4194304);
// initialize the webserver for uploading files.
String infoAddr =
NetUtils.getServerAddress(
conf,
"dfs.secondary.info.bindAddress",
"dfs.secondary.info.port",
"dfs.secondary.http.address");
InetSocketAddress infoSocAddr = NetUtils.createSocketAddr(infoAddr);
infoBindAddress = infoSocAddr.getHostName();
int tmpInfoPort = infoSocAddr.getPort();
infoServer = new HttpServer("secondary", infoBindAddress, tmpInfoPort, tmpInfoPort == 0, conf);
infoServer.setAttribute("name.system.image", checkpointImage);
this.infoServer.setAttribute("name.conf", conf);
infoServer.addInternalServlet("getimage", "/getimage", GetImageServlet.class);
infoServer.start();
// The web-server port can be ephemeral... ensure we have the correct info
infoPort = infoServer.getPort();
conf.set("dfs.secondary.http.address", infoBindAddress + ":" + infoPort);
LOG.info("Secondary Web-server up at: " + infoBindAddress + ":" + infoPort);
LOG.warn(
"Checkpoint Period :"
+ checkpointPeriod
+ " secs "
+ "("
+ checkpointPeriod / 60
+ " min)");
LOG.warn(
"Log Size Trigger :"
+ checkpointSize
+ " bytes "
+ "("
+ checkpointSize / 1024
+ " KB)");
}
static ClientDatanodeProtocolPB createClientDatanodeProtocolProxy(
DatanodeID datanodeid,
Configuration conf,
int socketTimeout,
boolean connectToDnViaHostname,
LocatedBlock locatedBlock)
throws IOException {
final String dnAddr = datanodeid.getIpcAddr(connectToDnViaHostname);
InetSocketAddress addr = NetUtils.createSocketAddr(dnAddr);
if (LOG.isDebugEnabled()) {
LOG.debug("Connecting to datanode " + dnAddr + " addr=" + addr);
}
// Since we're creating a new UserGroupInformation here, we know that no
// future RPC proxies will be able to re-use the same connection. And
// usages of this proxy tend to be one-off calls.
//
// This is a temporary fix: callers should really achieve this by using
// RPC.stopProxy() on the resulting object, but this is currently not
// working in trunk. See the discussion on HDFS-1965.
Configuration confWithNoIpcIdle = new Configuration(conf);
confWithNoIpcIdle.setInt(
CommonConfigurationKeysPublic.IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY, 0);
UserGroupInformation ticket =
UserGroupInformation.createRemoteUser(locatedBlock.getBlock().getLocalBlock().toString());
ticket.addToken(locatedBlock.getBlockToken());
return createClientDatanodeProtocolProxy(
addr, ticket, confWithNoIpcIdle, NetUtils.getDefaultSocketFactory(conf), socketTimeout);
}
public void testSocketAddress() throws IOException {
Configuration conf = new Configuration();
final String defaultAddr = "host:1";
final int defaultPort = 2;
InetSocketAddress addr = null;
addr = conf.getSocketAddr("myAddress", defaultAddr, defaultPort);
assertEquals(defaultAddr, NetUtils.getHostPortString(addr));
conf.set("myAddress", "host2");
addr = conf.getSocketAddr("myAddress", defaultAddr, defaultPort);
assertEquals("host2:" + defaultPort, NetUtils.getHostPortString(addr));
conf.set("myAddress", "host2:3");
addr = conf.getSocketAddr("myAddress", defaultAddr, defaultPort);
assertEquals("host2:3", NetUtils.getHostPortString(addr));
boolean threwException = false;
conf.set("myAddress", "bad:-port");
try {
addr = conf.getSocketAddr("myAddress", defaultAddr, defaultPort);
} catch (IllegalArgumentException iae) {
threwException = true;
assertEquals(
"Does not contain a valid host:port authority: "
+ "bad:-port (configuration property 'myAddress')",
iae.getMessage());
} finally {
assertTrue(threwException);
}
}
public void testSetSocketAddress() throws IOException {
Configuration conf = new Configuration();
NetUtils.addStaticResolution("host", "127.0.0.1");
final String defaultAddr = "host:1";
InetSocketAddress addr = NetUtils.createSocketAddr(defaultAddr);
conf.setSocketAddr("myAddress", addr);
assertEquals(defaultAddr, NetUtils.getHostPortString(addr));
}
NamenodeRegistration setRegistration() throws IOException {
nodeRegistration =
new NamenodeRegistration(
NetUtils.getHostPortString(rpcServer.getRpcAddress()),
NetUtils.getHostPortString(getHttpAddress()),
StorageInfo.getStorageInfoFromDB(),
getRole()); // HOP change. previous code was getFSImage().getStorage()
return nodeRegistration;
}
@Override
public void start() {
// NodeManager is the last service to start, so NodeId is available.
this.nodeId = this.context.getNodeId();
String httpBindAddressStr =
getConfig()
.get(YarnConfiguration.NM_WEBAPP_ADDRESS, YarnConfiguration.DEFAULT_NM_WEBAPP_ADDRESS);
InetSocketAddress httpBindAddress =
NetUtils.createSocketAddr(
httpBindAddressStr,
YarnConfiguration.DEFAULT_NM_WEBAPP_PORT,
YarnConfiguration.NM_WEBAPP_ADDRESS);
try {
// this.hostName = InetAddress.getLocalHost().getCanonicalHostName();
this.httpPort = httpBindAddress.getPort();
// Registration has to be in start so that ContainerManager can get the
// perNM tokens needed to authenticate ContainerTokens.
registerWithRM();
super.start();
startStatusUpdater();
} catch (Exception e) {
throw new AvroRuntimeException(e);
}
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol
* @param clientVersion
* @param addr
* @param conf
* @return a protocol proxy
* @throws IOException
*/
public static <T> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return getProtocolProxy(
protocol, clientVersion, addr, conf, NetUtils.getDefaultSocketFactory(conf));
}
/*
* Convert the map returned from DFSUtil functions to an array of
* addresses represented as "host:port"
*/
private String[] toStringArray(List<ConfiguredNNAddress> list) {
String[] ret = new String[list.size()];
for (int i = 0; i < list.size(); i++) {
ret[i] = NetUtils.getHostPortString(list.get(i).getAddress());
}
return ret;
}
protected synchronized void setupConnection() throws IOException {
short ioFailures = 0;
short timeoutFailures = 0;
while (true) {
try {
this.socket = socketFactory.createSocket();
this.socket.setTcpNoDelay(tcpNoDelay);
this.socket.setKeepAlive(tcpKeepAlive);
// connection time out is 20s
NetUtils.connect(this.socket, remoteId.getAddress(), getSocketTimeout(conf));
if (remoteId.rpcTimeout > 0) {
pingInterval = remoteId.rpcTimeout; // overwrite pingInterval
}
this.socket.setSoTimeout(pingInterval);
return;
} catch (SocketTimeoutException toe) {
/* The max number of retries is 45,
* which amounts to 20s*45 = 15 minutes retries.
*/
handleConnectionFailure(timeoutFailures++, maxRetries, toe);
} catch (IOException ie) {
handleConnectionFailure(ioFailures++, maxRetries, ie);
}
}
}
@Test(timeout = 90000)
public void testRPCInterruptedSimple() throws IOException {
final Configuration conf = new Configuration();
Server server =
new RPC.Builder(conf)
.setProtocol(TestProtocol.class)
.setInstance(new TestImpl())
.setBindAddress(ADDRESS)
.setPort(0)
.setNumHandlers(5)
.setVerbose(true)
.setSecretManager(null)
.build();
server.start();
InetSocketAddress addr = NetUtils.getConnectAddress(server);
final TestProtocol proxy = RPC.getProxy(TestProtocol.class, TestProtocol.versionID, addr, conf);
// Connect to the server
proxy.ping();
// Interrupt self, try another call
Thread.currentThread().interrupt();
try {
proxy.ping();
fail("Interruption did not cause IPC to fail");
} catch (IOException ioe) {
if (!ioe.toString().contains("InterruptedException")) {
throw ioe;
}
// clear interrupt status for future tests
Thread.interrupted();
}
}
public void checkNameServiceId(Configuration conf, String addr, String expectedNameServiceId) {
InetSocketAddress s = NetUtils.createSocketAddr(addr);
String nameserviceId =
DFSUtil.getNameServiceIdFromAddress(
conf, s, DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, DFS_NAMENODE_RPC_ADDRESS_KEY);
assertEquals(expectedNameServiceId, nameserviceId);
}
@Test
public void testProxyAddress() throws IOException {
Server server =
new RPC.Builder(conf)
.setProtocol(TestProtocol.class)
.setInstance(new TestImpl())
.setBindAddress(ADDRESS)
.setPort(0)
.build();
TestProtocol proxy = null;
try {
server.start();
InetSocketAddress addr = NetUtils.getConnectAddress(server);
// create a client
proxy = RPC.getProxy(TestProtocol.class, TestProtocol.versionID, addr, conf);
assertEquals(addr, RPC.getServerAddress(proxy));
} finally {
server.stop();
if (proxy != null) {
RPC.stopProxy(proxy);
}
}
}
void launchWorkerNode(Container container) throws IOException, YarnException {
Map<String, String> env = System.getenv();
ContainerLaunchContext workerContext = Records.newRecord(ContainerLaunchContext.class);
LocalResource workerJar = Records.newRecord(LocalResource.class);
setupWorkerJar(workerJar);
workerContext.setLocalResources(Collections.singletonMap("socialite.jar", workerJar));
System.out.println("[Master] workerJar:" + workerJar);
Map<String, String> workerEnv = new HashMap<String, String>(env);
setupWorkerEnv(workerEnv);
workerContext.setEnvironment(workerEnv);
String opts = "-Dsocialite.master=" + NetUtils.getHostname().split("/")[1] + " ";
opts += "-Dsocialite.worker.num_threads=" + ClusterConf.get().getNumWorkerThreads() + " ";
workerContext.setCommands(
Collections.singletonList(
"$JAVA_HOME/bin/java -ea "
+ env.get("JVM_OPTS")
+ " "
+ env.get("SOCIALITE_OPTS")
+ " "
+ opts
+ " "
+ "socialite.dist.worker.WorkerNode"
+ " 1>"
+ ApplicationConstants.LOG_DIR_EXPANSION_VAR
+ "/stdout"
+ " 2>"
+ ApplicationConstants.LOG_DIR_EXPANSION_VAR
+ "/stderr"));
nmClient.startContainer(container, workerContext);
L.info("Launched worker node (container:" + container.getId() + ")");
}
@Test(timeout = 90000)
public void testRPCInterruptedSimple() throws Exception {
final Configuration conf = new Configuration();
Server server =
RPC.getServer(TestProtocol.class, new TestImpl(), ADDRESS, 0, 5, true, conf, null);
server.start();
InetSocketAddress addr = NetUtils.getConnectAddress(server);
final TestProtocol proxy = RPC.getProxy(TestProtocol.class, TestProtocol.versionID, addr, conf);
// Connect to the server
proxy.ping();
// Interrupt self, try another call
Thread.currentThread().interrupt();
try {
proxy.ping();
fail("Interruption did not cause IPC to fail");
} catch (IOException ioe) {
if (!ioe.toString().contains("InterruptedException")) {
throw ioe;
}
// clear interrupt status for future tests
Thread.interrupted();
} finally {
server.stop();
}
}
private void doRPCs(Configuration conf, boolean expectFailure) throws Exception {
SecurityUtil.setPolicy(new ConfiguredPolicy(conf, new TestPolicyProvider()));
Server server = RPC.getServer(new TestImpl(), ADDRESS, 0, 5, true, conf);
TestProtocol proxy = null;
server.start();
InetSocketAddress addr = NetUtils.getConnectAddress(server);
try {
proxy = (TestProtocol) RPC.getProxy(TestProtocol.class, TestProtocol.versionID, addr, conf);
proxy.ping();
if (expectFailure) {
fail("Expect RPC.getProxy to fail with AuthorizationException!");
}
} catch (RemoteException e) {
if (expectFailure) {
assertTrue(e.unwrapRemoteException() instanceof AuthorizationException);
} else {
throw e;
}
} finally {
server.stop();
if (proxy != null) {
RPC.stopProxy(proxy);
}
}
}
public void testSerial(
int handlerCount, boolean handlerSleep, int clientCount, int callerCount, int callCount)
throws Exception {
Server server = new TestServer(handlerCount, handlerSleep);
InetSocketAddress addr = NetUtils.getConnectAddress(server);
server.start();
Client[] clients = new Client[clientCount];
for (int i = 0; i < clientCount; i++) {
clients[i] = new Client(LongWritable.class, conf);
}
SerialCaller[] callers = new SerialCaller[callerCount];
for (int i = 0; i < callerCount; i++) {
callers[i] = new SerialCaller(clients[i % clientCount], addr, callCount);
callers[i].start();
}
for (int i = 0; i < callerCount; i++) {
callers[i].join();
assertFalse(callers[i].failed);
}
for (int i = 0; i < clientCount; i++) {
clients[i].stop();
}
server.stop();
}
/**
* Constructor.
*
* @param datanodeid Datanode to connect to.
* @param conf Configuration.
* @param socketTimeout Socket timeout to use.
* @param connectToDnViaHostname connect to the Datanode using its hostname
* @throws IOException
*/
public ClientDatanodeProtocolTranslatorPB(
DatanodeID datanodeid, Configuration conf, int socketTimeout, boolean connectToDnViaHostname)
throws IOException {
final String dnAddr = datanodeid.getIpcAddr(connectToDnViaHostname);
InetSocketAddress addr = NetUtils.createSocketAddr(dnAddr);
if (LOG.isDebugEnabled()) {
LOG.debug("Connecting to datanode " + dnAddr + " addr=" + addr);
}
rpcProxy =
createClientDatanodeProtocolProxy(
addr,
UserGroupInformation.getCurrentUser(),
conf,
NetUtils.getDefaultSocketFactory(conf),
socketTimeout);
}
@Test
public final void testHttpDataServer() throws Exception {
Random rnd = new Random();
FileWriter writer = new FileWriter(TEST_DATA + "/" + "testHttp");
String watermark = "test_" + rnd.nextInt();
writer.write(watermark + "\n");
writer.flush();
writer.close();
DataRetriever ret = new DirectoryRetriever(TEST_DATA);
HttpDataServer server = new HttpDataServer(NetUtils.createSocketAddr("127.0.0.1:0"), ret);
server.start();
InetSocketAddress addr = server.getBindAddress();
URL url = new URL("http://127.0.0.1:" + addr.getPort() + "/testHttp");
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
String line = null;
boolean found = false;
while ((line = in.readLine()) != null) {
System.out.println(line);
if (line.equals(watermark)) found = true;
}
assertTrue(found);
in.close();
server.stop();
}
public void initializeServer() throws IOException {
String serverAddr = conf.get(CLUSTER_BALANCER_ADDR, "localhost:9143");
InetSocketAddress addr = NetUtils.createSocketAddr(serverAddr);
clusterDaemonServer = RPC.getServer(this, addr.getHostName(), addr.getPort(), conf);
clusterDaemonServer.start();
// Http server
String infoServerAddr = conf.get(CLUSTER_HTTP_BALANCER_ADDR, "localhost:50143");
InetSocketAddress infoAddr = NetUtils.createSocketAddr(infoServerAddr);
infoServer =
new HttpServer(
"cb", infoAddr.getHostName(), infoAddr.getPort(), infoAddr.getPort() == 0, conf);
infoServer.setAttribute("cluster.balancer", this);
infoServer.start();
}
public void launchSupervisorOnContainer(Container container) throws IOException {
LOG.info("Connecting to ContainerManager for containerid=" + container.getId());
String cmIpPortStr = container.getNodeId().getHost() + ":" + container.getNodeId().getPort();
InetSocketAddress cmAddress = NetUtils.createSocketAddr(cmIpPortStr);
LOG.info("Connecting to ContainerManager at " + cmIpPortStr);
ContainerManager proxy =
((ContainerManager) rpc.getProxy(ContainerManager.class, cmAddress, hadoopConf));
LOG.info("launchSupervisorOnContainer( id:" + container.getId() + " )");
ContainerLaunchContext launchContext = Records.newRecord(ContainerLaunchContext.class);
launchContext.setContainerId(container.getId());
launchContext.setResource(container.getResource());
try {
launchContext.setUser(UserGroupInformation.getCurrentUser().getShortUserName());
} catch (IOException e) {
LOG.info(
"Getting current user info failed when trying to launch the container" + e.getMessage());
}
Map<String, String> env = new HashMap<String, String>();
launchContext.setEnvironment(env);
Map<String, LocalResource> localResources = new HashMap<String, LocalResource>();
String stormVersion = Util.getStormVersion(this.storm_conf);
Path zip = new Path("/lib/storm/" + stormVersion + "/storm.zip");
FileSystem fs = FileSystem.get(this.hadoopConf);
localResources.put(
"storm",
Util.newYarnAppResource(
fs, zip, LocalResourceType.ARCHIVE, LocalResourceVisibility.PUBLIC));
String appHome = Util.getApplicationHomeForId(this.appAttemptId.toString());
Path dirDst = Util.createConfigurationFileInFs(fs, appHome, this.storm_conf, this.hadoopConf);
localResources.put("conf", Util.newYarnAppResource(fs, dirDst));
launchContext.setLocalResources(localResources);
List<String> supervisorArgs = Util.buildSupervisorCommands(this.storm_conf);
launchContext.setCommands(supervisorArgs);
StartContainerRequest startRequest = Records.newRecord(StartContainerRequest.class);
startRequest.setContainerLaunchContext(launchContext);
LOG.info(
"launchSupervisorOnContainer: startRequest prepared, calling startContainer. "
+ startRequest);
try {
StartContainerResponse response = proxy.startContainer(startRequest);
LOG.info("Got a start container response " + response);
} catch (Exception e) {
LOG.error("Caught an exception while trying to start a container", e);
System.exit(-1);
}
}
/** Returns the Jetty server that the Namenode is listening on. */
private String getInfoServer() throws IOException {
URI fsName = FileSystem.getDefaultUri(conf);
if (!"hdfs".equals(fsName.getScheme())) {
throw new IOException("This is not a DFS");
}
return NetUtils.getServerAddress(
conf, "dfs.info.bindAddress", "dfs.info.port", "dfs.http.address");
}
public static String jobTrackUrl(String requestUrl, Configuration conf, RunningJob job) {
// Create a link to the status of the running job
String trackerAddress = conf.get("mapred.job.tracker.http.address");
InetSocketAddress infoSocAddr = NetUtils.createSocketAddr(trackerAddress);
int cutoff = requestUrl.indexOf('/', requestUrl.lastIndexOf(':'));
requestUrl = requestUrl.substring(0, cutoff);
InetSocketAddress requestSocAddr = NetUtils.createSocketAddr(requestUrl);
String address =
"http://"
+ requestSocAddr.getHostName()
+ ":"
+ infoSocAddr.getPort()
+ "/jobdetails.jsp?jobid="
+ job.getID()
+ "&refresh=30";
return address;
}
/**
* Connect to the server and set up the I/O streams. It then sends a header to the server and
* starts the connection thread that waits for responses.
*
* @throws java.io.IOException e
*/
protected synchronized void setupIOstreams() throws IOException, InterruptedException {
if (socket != null || shouldCloseConnection.get()) {
return;
}
if (failedServers.isFailedServer(remoteId.getAddress())) {
if (LOG.isDebugEnabled()) {
LOG.debug(
"Not trying to connect to "
+ remoteId.getAddress()
+ " this server is in the failed servers list");
}
IOException e =
new FailedServerException(
"This server is in the failed servers list: " + remoteId.getAddress());
markClosed(e);
close();
throw e;
}
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Connecting to " + remoteId);
}
setupConnection();
this.in =
new DataInputStream(
new BufferedInputStream(new PingInputStream(NetUtils.getInputStream(socket))));
this.out = new DataOutputStream(new BufferedOutputStream(NetUtils.getOutputStream(socket)));
writeHeader();
// update last activity time
touch();
// start the receiver thread after the socket connection has been set up
start();
} catch (IOException e) {
failedServers.addToFailedServers(remoteId.address);
markClosed(e);
close();
throw e;
}
}
public void start(Configuration conf) {
YarnRPC rpc = YarnRPC.create(conf);
// TODO : use fixed port ??
InetSocketAddress address = NetUtils.createSocketAddr(hostAddress);
InetAddress hostNameResolved = null;
try {
address.getAddress();
hostNameResolved = InetAddress.getLocalHost();
} catch (UnknownHostException e) {
throw new YarnRuntimeException(e);
}
server = rpc.getServer(protocol, this, address, conf, null, 1);
server.start();
this.bindAddress = NetUtils.getConnectAddress(server);
super.start();
amRunning = true;
}
public void testUpdateSocketAddress() throws IOException {
InetSocketAddress addr = NetUtils.createSocketAddrForHost("host", 1);
InetSocketAddress connectAddr = conf.updateConnectAddr("myAddress", addr);
assertEquals(connectAddr.getHostName(), addr.getHostName());
addr = new InetSocketAddress(1);
connectAddr = conf.updateConnectAddr("myAddress", addr);
assertEquals(connectAddr.getHostName(), InetAddress.getLocalHost().getHostName());
}
private DNAddrPair chooseDataNode(LocatedBlock block) throws IOException {
while (true) {
DatanodeInfo[] nodes = block.getLocations();
try {
DatanodeInfo chosenNode = bestNode(nodes, deadNodes);
InetSocketAddress targetAddr = NetUtils.createSocketAddr(chosenNode.getXferAddr());
return new DNAddrPair(chosenNode, targetAddr);
} catch (IOException ie) {
String blockInfo = block.getBlock() + " file=" + src;
if (failures >= dfsClient.getMaxBlockAcquireFailures()) {
throw new BlockMissingException(
src, "Could not obtain block: " + blockInfo, block.getStartOffset());
}
if (nodes == null || nodes.length == 0) {
DFSClient.LOG.info("No node available for block: " + blockInfo);
}
DFSClient.LOG.info(
"Could not obtain block "
+ block.getBlock()
+ " from any node: "
+ ie
+ ". Will get new block locations from namenode and retry...");
try {
// Introducing a random factor to the wait time before another retry.
// The wait time is dependent on # of failures and a random factor.
// At the first time of getting a BlockMissingException, the wait time
// is a random number between 0..3000 ms. If the first retry
// still fails, we will wait 3000 ms grace period before the 2nd retry.
// Also at the second retry, the waiting window is expanded to 6000 ms
// alleviating the request rate from the server. Similarly the 3rd retry
// will wait 6000ms grace period before retry and the waiting window is
// expanded to 9000ms.
double waitTime =
timeWindow * failures
+ // grace period for the last round of attempt
timeWindow
* (failures + 1)
* DFSUtil.getRandom().nextDouble(); // expanding time window for each failure
DFSClient.LOG.warn(
"DFS chooseDataNode: got # "
+ (failures + 1)
+ " IOException, will wait for "
+ waitTime
+ " msec.");
Thread.sleep((long) waitTime);
} catch (InterruptedException iex) {
}
deadNodes.clear(); // 2nd option is to remove only nodes[blockId]
openInfo();
block = getBlockAt(block.getStartOffset(), false);
failures++;
continue;
}
}
}
protected ResourceTracker getRMClient() {
Configuration conf = getConfig();
YarnRPC rpc = YarnRPC.create(conf);
InetSocketAddress rmAddress =
NetUtils.createSocketAddr(
this.rmAddress,
YarnConfiguration.DEFAULT_RM_RESOURCE_TRACKER_PORT,
YarnConfiguration.RM_RESOURCE_TRACKER_ADDRESS);
return (ResourceTracker) rpc.getProxy(ResourceTracker.class, rmAddress, conf);
}
@Override
protected void serviceInit(Configuration conf) throws Exception {
clientServiceBindAddress = RMADDRESS;
/*
clientServiceBindAddress = conf.get(
YarnConfiguration.APPSMANAGER_ADDRESS,
YarnConfiguration.DEFAULT_APPSMANAGER_BIND_ADDRESS);
*/
clientBindAddress = NetUtils.createSocketAddr(clientServiceBindAddress);
super.serviceInit(conf);
}
/**
* Get a delegation token for the user from the JobTracker.
*
* @param renewer the user who can renew the token
* @return the new token
* @throws IOException
*/
public Token<DelegationTokenIdentifier> getDelegationToken(Text renewer)
throws IOException, InterruptedException {
Token<DelegationTokenIdentifier> result = client.getDelegationToken(renewer);
InetSocketAddress addr = Master.getMasterAddress(conf);
StringBuilder service = new StringBuilder();
service.append(NetUtils.normalizeHostName(addr.getAddress().getHostAddress()));
service.append(':');
service.append(addr.getPort());
result.setService(new Text(service.toString()));
return result;
}