Examples with DataInputStream java.io.DataInputStream used on opensource projects

Example 31 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class TestShuffleHandler method testClientClosesConnection.

/**
   * Verify client prematurely closing a connection.
   *
   * @throws Exception exception.
   */
@Test(timeout = 10000)
public void testClientClosesConnection() throws Exception {
    final ArrayList<Throwable> failures = new ArrayList<Throwable>(1);
    Configuration conf = new Configuration();
    conf.setInt(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY, 0);
    ShuffleHandler shuffleHandler = new ShuffleHandler() {

        @Override
        protected Shuffle getShuffle(Configuration conf) {
            // replace the shuffle handler with one stubbed for testing
            return new Shuffle(conf) {

                @Override
                protected MapOutputInfo getMapOutputInfo(String mapId, int reduce, String jobId, String user) throws IOException {
                    return null;
                }

                @Override
                protected void populateHeaders(List<String> mapIds, String jobId, String user, int reduce, HttpRequest request, HttpResponse response, boolean keepAliveParam, Map<String, MapOutputInfo> infoMap) throws IOException {
                    // Only set response headers and skip everything else
                    // send some dummy value for content-length
                    super.setResponseHeaders(response, keepAliveParam, 100);
                }

                @Override
                protected void verifyRequest(String appid, ChannelHandlerContext ctx, HttpRequest request, HttpResponse response, URL requestUri) throws IOException {
                }

                @Override
                protected ChannelFuture sendMapOutput(ChannelHandlerContext ctx, Channel ch, String user, String mapId, int reduce, MapOutputInfo info) throws IOException {
                    // send a shuffle header and a lot of data down the channel
                    // to trigger a broken pipe
                    ShuffleHeader header = new ShuffleHeader("attempt_12345_1_m_1_0", 5678, 5678, 1);
                    DataOutputBuffer dob = new DataOutputBuffer();
                    header.write(dob);
                    ch.write(wrappedBuffer(dob.getData(), 0, dob.getLength()));
                    dob = new DataOutputBuffer();
                    for (int i = 0; i < 100000; ++i) {
                        header.write(dob);
                    }
                    return ch.write(wrappedBuffer(dob.getData(), 0, dob.getLength()));
                }

                @Override
                protected void sendError(ChannelHandlerContext ctx, HttpResponseStatus status) {
                    if (failures.size() == 0) {
                        failures.add(new Error());
                        ctx.getChannel().close();
                    }
                }

                @Override
                protected void sendError(ChannelHandlerContext ctx, String message, HttpResponseStatus status) {
                    if (failures.size() == 0) {
                        failures.add(new Error());
                        ctx.getChannel().close();
                    }
                }
            };
        }
    };
    shuffleHandler.init(conf);
    shuffleHandler.start();
    // simulate a reducer that closes early by reading a single shuffle header
    // then closing the connection
    URL url = new URL("http://127.0.0.1:" + shuffleHandler.getConfig().get(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY) + "/mapOutput?job=job_12345_1&reduce=1&map=attempt_12345_1_m_1_0");
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestProperty(ShuffleHeader.HTTP_HEADER_NAME, ShuffleHeader.DEFAULT_HTTP_HEADER_NAME);
    conn.setRequestProperty(ShuffleHeader.HTTP_HEADER_VERSION, ShuffleHeader.DEFAULT_HTTP_HEADER_VERSION);
    conn.connect();
    DataInputStream input = new DataInputStream(conn.getInputStream());
    Assert.assertEquals(HttpURLConnection.HTTP_OK, conn.getResponseCode());
    Assert.assertEquals("close", conn.getHeaderField(HttpHeader.CONNECTION.asString()));
    ShuffleHeader header = new ShuffleHeader();
    header.readFields(input);
    input.close();
    shuffleHandler.stop();
    Assert.assertTrue("sendError called when client closed connection", failures.size() == 0);
}

Example 32 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class TestShuffleHandler method testMapFileAccess.

/**
   * Validate the ownership of the map-output files being pulled in. The
   * local-file-system owner of the file should match the user component in the
   *
   * @throws Exception exception
   */
@Test(timeout = 100000)
public void testMapFileAccess() throws IOException {
    // This will run only in NativeIO is enabled as SecureIOUtils need it
    assumeTrue(NativeIO.isAvailable());
    Configuration conf = new Configuration();
    conf.setInt(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY, 0);
    conf.setInt(ShuffleHandler.MAX_SHUFFLE_CONNECTIONS, 3);
    conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
    UserGroupInformation.setConfiguration(conf);
    File absLogDir = new File("target", TestShuffleHandler.class.getSimpleName() + "LocDir").getAbsoluteFile();
    conf.set(YarnConfiguration.NM_LOCAL_DIRS, absLogDir.getAbsolutePath());
    ApplicationId appId = ApplicationId.newInstance(12345, 1);
    LOG.info(appId.toString());
    String appAttemptId = "attempt_12345_1_m_1_0";
    String user = "randomUser";
    String reducerId = "0";
    List<File> fileMap = new ArrayList<File>();
    createShuffleHandlerFiles(absLogDir, user, appId.toString(), appAttemptId, conf, fileMap);
    ShuffleHandler shuffleHandler = new ShuffleHandler() {

        @Override
        protected Shuffle getShuffle(Configuration conf) {
            // replace the shuffle handler with one stubbed for testing
            return new Shuffle(conf) {

                @Override
                protected void verifyRequest(String appid, ChannelHandlerContext ctx, HttpRequest request, HttpResponse response, URL requestUri) throws IOException {
                // Do nothing.
                }
            };
        }
    };
    shuffleHandler.init(conf);
    try {
        shuffleHandler.start();
        DataOutputBuffer outputBuffer = new DataOutputBuffer();
        outputBuffer.reset();
        Token<JobTokenIdentifier> jt = new Token<JobTokenIdentifier>("identifier".getBytes(), "password".getBytes(), new Text(user), new Text("shuffleService"));
        jt.write(outputBuffer);
        shuffleHandler.initializeApplication(new ApplicationInitializationContext(user, appId, ByteBuffer.wrap(outputBuffer.getData(), 0, outputBuffer.getLength())));
        URL url = new URL("http://127.0.0.1:" + shuffleHandler.getConfig().get(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY) + "/mapOutput?job=job_12345_0001&reduce=" + reducerId + "&map=attempt_12345_1_m_1_0");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty(ShuffleHeader.HTTP_HEADER_NAME, ShuffleHeader.DEFAULT_HTTP_HEADER_NAME);
        conn.setRequestProperty(ShuffleHeader.HTTP_HEADER_VERSION, ShuffleHeader.DEFAULT_HTTP_HEADER_VERSION);
        conn.connect();
        byte[] byteArr = new byte[10000];
        try {
            DataInputStream is = new DataInputStream(conn.getInputStream());
            is.readFully(byteArr);
        } catch (EOFException e) {
        // ignore
        }
        // Retrieve file owner name
        FileInputStream is = new FileInputStream(fileMap.get(0));
        String owner = NativeIO.POSIX.getFstat(is.getFD()).getOwner();
        is.close();
        String message = "Owner '" + owner + "' for path " + fileMap.get(0).getAbsolutePath() + " did not match expected owner '" + user + "'";
        Assert.assertTrue((new String(byteArr)).contains(message));
    } finally {
        shuffleHandler.stop();
        FileUtil.fullyDelete(absLogDir);
    }
}

Example 33 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class HistoryServerLeveldbStateStoreService method loadToken.

private void loadToken(HistoryServerState state, byte[] data) throws IOException {
    MRDelegationTokenIdentifier tokenId = new MRDelegationTokenIdentifier();
    long renewDate;
    DataInputStream in = new DataInputStream(new ByteArrayInputStream(data));
    try {
        tokenId.readFields(in);
        renewDate = in.readLong();
    } finally {
        IOUtils.cleanup(LOG, in);
    }
    state.tokenState.put(tokenId, renewDate);
}

Example 34 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class HistoryServerLeveldbStateStoreService method loadTokenMasterKey.

private void loadTokenMasterKey(HistoryServerState state, byte[] data) throws IOException {
    DelegationKey key = new DelegationKey();
    DataInputStream in = new DataInputStream(new ByteArrayInputStream(data));
    try {
        key.readFields(in);
    } finally {
        IOUtils.cleanup(LOG, in);
    }
    state.tokenMasterKeyState.add(key);
}

Example 35 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class HistoryServerFileSystemStateStoreService method loadTokenMasterKey.

private void loadTokenMasterKey(HistoryServerState state, Path keyFile, long numKeyFileBytes) throws IOException {
    DelegationKey key = new DelegationKey();
    byte[] keyData = readFile(keyFile, numKeyFileBytes);
    DataInputStream in = new DataInputStream(new ByteArrayInputStream(keyData));
    try {
        key.readFields(in);
    } finally {
        IOUtils.cleanup(LOG, in);
    }
    state.tokenMasterKeyState.add(key);
}