Examples with UnavailableException alluxio.exception.status.UnavailableException used on opensource projects

Example 6 with UnavailableException

use of alluxio.exception.status.UnavailableException in project alluxio by Alluxio.

the class PollingMasterInquireClientTest method pollRejectingDoesntHang.

@Test(timeout = 10000)
public void pollRejectingDoesntHang() throws Exception {
    int port = mPort.getPort();
    InetSocketAddress serverAddress = new InetSocketAddress("127.0.0.1", port);
    RejectingServer s = new RejectingServer(serverAddress);
    s.start();
    List<InetSocketAddress> addrs = Arrays.asList(InetSocketAddress.createUnresolved(NetworkAddressUtils.getLocalHostName(Constants.SECOND_MS), port));
    PollingMasterInquireClient client = new PollingMasterInquireClient(addrs, () -> new CountingRetry(0), new ConfigurationBuilder().build());
    try {
        client.getPrimaryRpcAddress();
        fail("Expected polling to fail");
    } catch (UnavailableException e) {
    // Expected
    }
}

Example 7 with UnavailableException

use of alluxio.exception.status.UnavailableException in project alluxio by Alluxio.

the class ZkMasterInquireClientTest method testNoParticipant.

@Test
public void testNoParticipant() throws Exception {
    // Create zk inquire client.
    MasterInquireClient zkInquirer = ZkMasterInquireClient.getClient(mZkServer.getConnectString(), ELECTION_PATH, LEADER_PATH, INQUIRE_RETRY_COUNT, ZOOKEEPER_AUTH_ENABLED);
    // Create curator client for manipulating the leader path.
    CuratorFramework client = CuratorFrameworkFactory.newClient(mZkServer.getConnectString(), new ExponentialBackoffRetry(Constants.SECOND_MS, INQUIRE_RETRY_COUNT));
    // Create the leader path with no participants.
    client.start();
    client.create().forPath(LEADER_PATH);
    client.close();
    // Query should fail with no leader under path.
    boolean queryFailed = false;
    try {
        zkInquirer.getPrimaryRpcAddress();
    } catch (UnavailableException e) {
        // Expected.
        queryFailed = true;
    }
    Assert.assertTrue("Master query should have been failed.", queryFailed);
}

Example 8 with UnavailableException

use of alluxio.exception.status.UnavailableException in project alluxio by Alluxio.

the class AbstractClient method retryRPCInternal.

private synchronized <V> V retryRPCInternal(RetryPolicy retryPolicy, RpcCallable<V> rpc, Supplier<Void> onRetry) throws AlluxioStatusException {
    Exception ex = null;
    while (retryPolicy.attempt()) {
        if (mClosed) {
            throw new FailedPreconditionException("Client is closed");
        }
        connect();
        try {
            return rpc.call();
        } catch (StatusRuntimeException e) {
            AlluxioStatusException se = AlluxioStatusException.fromStatusRuntimeException(e);
            if (se.getStatusCode() == Status.Code.UNAVAILABLE || se.getStatusCode() == Status.Code.CANCELLED || se.getStatusCode() == Status.Code.UNAUTHENTICATED || e.getCause() instanceof UnresolvedAddressException) {
                ex = se;
            } else {
                throw se;
            }
        }
        LOG.debug("Rpc failed ({}): ", retryPolicy.getAttemptCount(), ex);
        onRetry.get();
        disconnect();
    }
    throw new UnavailableException("Failed after " + retryPolicy.getAttemptCount() + " attempts: " + ex.toString(), ex);
}

Example 9 with UnavailableException

use of alluxio.exception.status.UnavailableException in project alluxio by Alluxio.

the class ConfigurationUtils method loadConfiguration.

/**
 * Loads configuration from meta master in one RPC.
 *
 * @param address the meta master address
 * @param conf the existing configuration
 * @param ignoreClusterConf do not load cluster configuration related information
 * @param ignorePathConf do not load path configuration related information
 * @return the RPC response
 */
public static GetConfigurationPResponse loadConfiguration(InetSocketAddress address, AlluxioConfiguration conf, boolean ignoreClusterConf, boolean ignorePathConf) throws AlluxioStatusException {
    GrpcChannel channel = null;
    try {
        LOG.debug("Alluxio client (version {}) is trying to load configuration from meta master {}", RuntimeConstants.VERSION, address);
        channel = GrpcChannelBuilder.newBuilder(GrpcServerAddress.create(address), conf).setClientType("ConfigurationUtils").disableAuthentication().build();
        MetaMasterConfigurationServiceGrpc.MetaMasterConfigurationServiceBlockingStub client = MetaMasterConfigurationServiceGrpc.newBlockingStub(channel);
        GetConfigurationPResponse response = client.getConfiguration(GetConfigurationPOptions.newBuilder().setRawValue(true).setIgnoreClusterConf(ignoreClusterConf).setIgnorePathConf(ignorePathConf).build());
        LOG.debug("Alluxio client has loaded configuration from meta master {}", address);
        return response;
    } catch (io.grpc.StatusRuntimeException e) {
        throw new UnavailableException(String.format("Failed to handshake with master %s to load cluster default configuration values: %s", address, e.getMessage()), e);
    } catch (UnauthenticatedException e) {
        throw new RuntimeException(String.format("Received authentication exception during boot-strap connect with host:%s", address), e);
    } finally {
        if (channel != null) {
            channel.shutdown();
        }
    }
}

Example 10 with UnavailableException

use of alluxio.exception.status.UnavailableException in project alluxio by Alluxio.

the class AlluxioMasterRestServiceHandler method getWebUIBrowse.

/**
 * Gets Web UI browse page data.
 *
 * @param requestPath the request path
 * @param requestOffset the request offset
 * @param requestEnd the request end
 * @param requestLimit the request limit
 * @return the response object
 */
@GET
@Path(WEBUI_BROWSE)
public Response getWebUIBrowse(@DefaultValue("/") @QueryParam("path") String requestPath, @DefaultValue("0") @QueryParam("offset") String requestOffset, @DefaultValue("") @QueryParam("end") String requestEnd, @DefaultValue("20") @QueryParam("limit") String requestLimit) {
    return RestUtils.call(() -> {
        MasterWebUIBrowse response = new MasterWebUIBrowse();
        if (!ServerConfiguration.getBoolean(PropertyKey.WEB_FILE_INFO_ENABLED)) {
            return response;
        }
        if (SecurityUtils.isSecurityEnabled(ServerConfiguration.global()) && AuthenticatedClientUser.get(ServerConfiguration.global()) == null) {
            AuthenticatedClientUser.set(ServerUserState.global().getUser().getName());
        }
        response.setDebug(ServerConfiguration.getBoolean(PropertyKey.DEBUG)).setShowPermissions(ServerConfiguration.getBoolean(PropertyKey.SECURITY_AUTHORIZATION_PERMISSION_ENABLED)).setMasterNodeAddress(mMasterProcess.getRpcAddress().toString()).setInvalidPathError("");
        List<FileInfo> filesInfo;
        String path = URLDecoder.decode(requestPath, "UTF-8");
        if (path.isEmpty()) {
            path = AlluxioURI.SEPARATOR;
        }
        AlluxioURI currentPath = new AlluxioURI(path);
        response.setCurrentPath(currentPath.toString()).setViewingOffset(0);
        try {
            long fileId = mFileSystemMaster.getFileId(currentPath);
            FileInfo fileInfo = mFileSystemMaster.getFileInfo(fileId);
            UIFileInfo currentFileInfo = new UIFileInfo(fileInfo, ServerConfiguration.global(), new MasterStorageTierAssoc().getOrderedStorageAliases());
            if (currentFileInfo.getAbsolutePath() == null) {
                throw new FileDoesNotExistException(currentPath.toString());
            }
            response.setCurrentDirectory(currentFileInfo).setBlockSizeBytes(currentFileInfo.getBlockSizeBytes());
            if (!currentFileInfo.getIsDirectory()) {
                long relativeOffset = 0;
                long offset;
                try {
                    if (requestOffset != null) {
                        relativeOffset = Long.parseLong(requestOffset);
                    }
                } catch (NumberFormatException e) {
                // ignore the exception
                }
                // relative to the end of the file.
                if (requestEnd.equals("")) {
                    offset = relativeOffset;
                } else {
                    offset = fileInfo.getLength() - relativeOffset;
                }
                if (offset < 0) {
                    offset = 0;
                } else if (offset > fileInfo.getLength()) {
                    offset = fileInfo.getLength();
                }
                try {
                    AlluxioURI absolutePath = new AlluxioURI(currentFileInfo.getAbsolutePath());
                    FileSystem fs = mFsClient;
                    String fileData;
                    URIStatus status = fs.getStatus(absolutePath);
                    if (status.isCompleted()) {
                        OpenFilePOptions options = OpenFilePOptions.newBuilder().setReadType(ReadPType.NO_CACHE).build();
                        try (FileInStream is = fs.openFile(absolutePath, options)) {
                            int len = (int) Math.min(5L * Constants.KB, status.getLength() - offset);
                            byte[] data = new byte[len];
                            long skipped = is.skip(offset);
                            if (skipped < 0) {
                                // nothing was skipped
                                fileData = "Unable to traverse to offset; is file empty?";
                            } else if (skipped < offset) {
                                // couldn't skip all the way to offset
                                fileData = "Unable to traverse to offset; is offset larger than the file?";
                            } else {
                                // read may not read up to len, so only convert what was read
                                int read = is.read(data, 0, len);
                                if (read < 0) {
                                    // stream couldn't read anything, skip went to EOF?
                                    fileData = "Unable to read file";
                                } else {
                                    fileData = WebUtils.convertByteArrayToStringWithoutEscape(data, 0, read);
                                }
                            }
                        }
                    } else {
                        fileData = "The requested file is not complete yet.";
                    }
                    List<UIFileBlockInfo> uiBlockInfo = new ArrayList<>();
                    for (FileBlockInfo fileBlockInfo : mFileSystemMaster.getFileBlockInfoList(absolutePath)) {
                        uiBlockInfo.add(new UIFileBlockInfo(fileBlockInfo, ServerConfiguration.global()));
                    }
                    response.setFileBlocks(uiBlockInfo).setFileData(fileData).setHighestTierAlias(mBlockMaster.getGlobalStorageTierAssoc().getAlias(0));
                } catch (AlluxioException e) {
                    throw new IOException(e);
                }
                response.setViewingOffset(offset);
                return response;
            }
            if (currentPath.isRoot()) {
                response.setPathInfos(new UIFileInfo[0]);
            } else {
                String[] splitPath = PathUtils.getPathComponents(currentPath.toString());
                UIFileInfo[] pathInfos = new UIFileInfo[splitPath.length - 1];
                fileId = mFileSystemMaster.getFileId(currentPath);
                pathInfos[0] = new UIFileInfo(mFileSystemMaster.getFileInfo(fileId), ServerConfiguration.global(), new MasterStorageTierAssoc().getOrderedStorageAliases());
                AlluxioURI breadcrumb = new AlluxioURI(AlluxioURI.SEPARATOR);
                for (int i = 1; i < splitPath.length - 1; i++) {
                    breadcrumb = breadcrumb.join(splitPath[i]);
                    fileId = mFileSystemMaster.getFileId(breadcrumb);
                    pathInfos[i] = new UIFileInfo(mFileSystemMaster.getFileInfo(fileId), ServerConfiguration.global(), new MasterStorageTierAssoc().getOrderedStorageAliases());
                }
                response.setPathInfos(pathInfos);
            }
            filesInfo = mFileSystemMaster.listStatus(currentPath, ListStatusContext.defaults());
        } catch (FileDoesNotExistException e) {
            response.setInvalidPathError("Error: Invalid Path " + e.getMessage());
            return response;
        } catch (InvalidPathException e) {
            response.setInvalidPathError("Error: Invalid Path " + e.getLocalizedMessage());
            return response;
        } catch (UnavailableException e) {
            response.setInvalidPathError("The service is temporarily unavailable. " + e.getMessage());
            return response;
        } catch (IOException e) {
            response.setInvalidPathError("Error: File " + currentPath + " is not available " + e.getMessage());
            return response;
        } catch (AccessControlException e) {
            response.setInvalidPathError("Error: File " + currentPath + " cannot be accessed " + e.getMessage());
            return response;
        }
        List<UIFileInfo> fileInfos = new ArrayList<>(filesInfo.size());
        for (FileInfo fileInfo : filesInfo) {
            UIFileInfo toAdd = new UIFileInfo(fileInfo, ServerConfiguration.global(), new MasterStorageTierAssoc().getOrderedStorageAliases());
            try {
                if (!toAdd.getIsDirectory() && fileInfo.getLength() > 0) {
                    FileBlockInfo blockInfo = mFileSystemMaster.getFileBlockInfoList(new AlluxioURI(toAdd.getAbsolutePath())).get(0);
                    List<String> locations = new ArrayList<>();
                    // add the in-Alluxio block locations
                    for (BlockLocation location : blockInfo.getBlockInfo().getLocations()) {
                        WorkerNetAddress address = location.getWorkerAddress();
                        locations.add(address.getHost() + ":" + address.getDataPort());
                    }
                    // add underFS locations
                    locations.addAll(blockInfo.getUfsLocations());
                    toAdd.setFileLocations(locations);
                }
            } catch (FileDoesNotExistException e) {
                response.setFileDoesNotExistException("Error: non-existing file " + e.getMessage());
                return response;
            } catch (InvalidPathException e) {
                response.setInvalidPathException("Error: invalid path " + e.getMessage());
                return response;
            } catch (AccessControlException e) {
                response.setAccessControlException("Error: File " + currentPath + " cannot be accessed " + e.getMessage());
                return response;
            }
            fileInfos.add(toAdd);
        }
        fileInfos.sort(UIFileInfo.PATH_STRING_COMPARE);
        response.setNTotalFile(fileInfos.size());
        try {
            int offset = Integer.parseInt(requestOffset);
            int limit = Integer.parseInt(requestLimit);
            limit = offset == 0 && limit > fileInfos.size() ? fileInfos.size() : limit;
            limit = offset + limit > fileInfos.size() ? fileInfos.size() - offset : limit;
            int sum = Math.addExact(offset, limit);
            fileInfos = fileInfos.subList(offset, sum);
            response.setFileInfos(fileInfos);
        } catch (NumberFormatException e) {
            response.setFatalError("Error: offset or limit parse error, " + e.getLocalizedMessage());
            return response;
        } catch (ArithmeticException e) {
            response.setFatalError("Error: offset or offset + limit is out of bound, " + e.getLocalizedMessage());
            return response;
        } catch (IllegalArgumentException e) {
            response.setFatalError(e.getLocalizedMessage());
            return response;
        }
        return response;
    }, ServerConfiguration.global());
}