Examples with IOE org.apache.druid.java.util.common.IOE used on opensource projects

Example 1 with IOE

use of org.apache.druid.java.util.common.IOE in project druid by druid-io.

the class HdfsClasspathSetupTest method setupStatic.

@BeforeClass
public static void setupStatic() throws IOException {
    hdfsTmpDir = File.createTempFile("hdfsClasspathSetupTest", "dir");
    if (!hdfsTmpDir.delete()) {
        throw new IOE("Unable to delete hdfsTmpDir [%s]", hdfsTmpDir.getAbsolutePath());
    }
    conf = new Configuration(true);
    localFS = new LocalFileSystem();
    localFS.initialize(hdfsTmpDir.toURI(), conf);
    localFS.setWorkingDirectory(new Path(hdfsTmpDir.toURI()));
}

Example 2 with IOE

use of org.apache.druid.java.util.common.IOE in project druid by druid-io.

the class JobHelper method renameIndexFilesForSegments.

/**
 * Renames the index files for the segments. This works around some limitations of both FileContext (no s3n support) and NativeS3FileSystem.rename
 * which will not overwrite. Note: segments should be renamed in the index task, not in a hadoop job, as race
 * conditions between job retries can cause the final segment index file path to get clobbered.
 *
 * @param indexerSchema  the hadoop ingestion spec
 * @param segmentAndIndexZipFilePaths the list of segments with their currently stored tmp path and the final path
 *                                    that they should be renamed to.
 */
public static void renameIndexFilesForSegments(HadoopIngestionSpec indexerSchema, List<DataSegmentAndIndexZipFilePath> segmentAndIndexZipFilePaths) throws IOException {
    HadoopDruidIndexerConfig config = HadoopDruidIndexerConfig.fromSpec(indexerSchema);
    final Configuration configuration = JobHelper.injectSystemProperties(new Configuration(), config);
    config.addJobProperties(configuration);
    JobHelper.injectDruidProperties(configuration, config);
    for (DataSegmentAndIndexZipFilePath segmentAndIndexZipFilePath : segmentAndIndexZipFilePaths) {
        Path tmpPath = new Path(segmentAndIndexZipFilePath.getTmpIndexZipFilePath());
        Path finalIndexZipFilePath = new Path(segmentAndIndexZipFilePath.getFinalIndexZipFilePath());
        final FileSystem outputFS = FileSystem.get(finalIndexZipFilePath.toUri(), configuration);
        if (!renameIndexFile(outputFS, tmpPath, finalIndexZipFilePath)) {
            throw new IOE("Unable to rename [%s] to [%s]", tmpPath.toUri().toString(), finalIndexZipFilePath.toUri().toString());
        }
    }
}

Example 3 with IOE

use of org.apache.druid.java.util.common.IOE in project druid by druid-io.

the class JobHelper method addJarToClassPath.

static void addJarToClassPath(File jarFile, Path distributedClassPath, Path intermediateClassPath, FileSystem fs, Job job) throws IOException {
    // Create distributed directory if it does not exist.
    // rename will always fail if destination does not exist.
    fs.mkdirs(distributedClassPath);
    // Non-snapshot jar files are uploaded to the shared classpath.
    final Path hdfsPath = new Path(distributedClassPath, jarFile.getName());
    if (shouldUploadOrReplace(jarFile, hdfsPath, fs)) {
        // Muliple jobs can try to upload the jar here,
        // to avoid them from overwriting files, first upload to intermediateClassPath and then rename to the distributedClasspath.
        final Path intermediateHdfsPath = new Path(intermediateClassPath, jarFile.getName());
        uploadJar(jarFile, intermediateHdfsPath, fs);
        IOException exception = null;
        try {
            log.info("Renaming jar to path[%s]", hdfsPath);
            fs.rename(intermediateHdfsPath, hdfsPath);
            if (!fs.exists(hdfsPath)) {
                throw new IOE("File does not exist even after moving from[%s] to [%s]", intermediateHdfsPath, hdfsPath);
            }
        } catch (IOException e) {
            // rename failed, possibly due to race condition. check if some other job has uploaded the jar file.
            try {
                if (!fs.exists(hdfsPath)) {
                    log.error(e, "IOException while Renaming jar file");
                    exception = e;
                }
            } catch (IOException e1) {
                e.addSuppressed(e1);
                exception = e;
            }
        } finally {
            try {
                if (fs.exists(intermediateHdfsPath)) {
                    fs.delete(intermediateHdfsPath, false);
                }
            } catch (IOException e) {
                if (exception == null) {
                    exception = e;
                } else {
                    exception.addSuppressed(e);
                }
            }
            if (exception != null) {
                throw exception;
            }
        }
    }
    job.addFileToClassPath(hdfsPath);
}

Example 4 with IOE

use of org.apache.druid.java.util.common.IOE in project druid by druid-io.

the class IndexTaskClient method submitRequest.

/**
 * Sends an HTTP request to the task of the specified {@code taskId} and returns a response if it succeeded.
 */
protected <IntermediateType, FinalType> FinalType submitRequest(String taskId, // nullable if content is empty
@Nullable String mediaType, HttpMethod method, String encodedPathSuffix, @Nullable String encodedQueryString, byte[] content, HttpResponseHandler<IntermediateType, FinalType> responseHandler, boolean retry) throws IOException, ChannelException, NoTaskLocationException {
    final RetryPolicy retryPolicy = retryPolicyFactory.makeRetryPolicy();
    while (true) {
        String path = StringUtils.format("%s/%s/%s", BASE_PATH, StringUtils.urlEncode(taskId), encodedPathSuffix);
        Optional<TaskStatus> status = taskInfoProvider.getTaskStatus(taskId);
        if (!status.isPresent() || !status.get().isRunnable()) {
            throw new TaskNotRunnableException(StringUtils.format("Aborting request because task [%s] is not runnable", taskId));
        }
        final TaskLocation location = taskInfoProvider.getTaskLocation(taskId);
        if (location.equals(TaskLocation.unknown())) {
            throw new NoTaskLocationException(StringUtils.format("No TaskLocation available for task [%s]", taskId));
        }
        final Request request = createRequest(taskId, location, path, encodedQueryString, method, mediaType, content);
        Either<StringFullResponseHolder, FinalType> response = null;
        try {
            // Netty throws some annoying exceptions if a connection can't be opened, which happens relatively frequently
            // for tasks that happen to still be starting up, so test the connection first to keep the logs clean.
            checkConnection(request.getUrl().getHost(), request.getUrl().getPort());
            response = submitRequest(request, responseHandler);
            if (response.isValue()) {
                return response.valueOrThrow();
            } else {
                final StringBuilder exceptionMessage = new StringBuilder();
                final HttpResponseStatus httpResponseStatus = response.error().getStatus();
                final String httpResponseContent = response.error().getContent();
                exceptionMessage.append("Received server error with status [").append(httpResponseStatus).append("]");
                if (!Strings.isNullOrEmpty(httpResponseContent)) {
                    final String choppedMessage = StringUtils.chop(StringUtils.nullToEmptyNonDruidDataString(httpResponseContent), 1000);
                    exceptionMessage.append("; first 1KB of body: ").append(choppedMessage);
                }
                if (httpResponseStatus.getCode() == 400) {
                    // don't bother retrying if it's a bad request
                    throw new IAE(exceptionMessage.toString());
                } else {
                    throw new IOE(exceptionMessage.toString());
                }
            }
        } catch (IOException | ChannelException e) {
            // Since workers are free to move tasks around to different ports, there is a chance that a task may have been
            // moved but our view of its location has not been updated yet from ZK. To detect this case, we send a header
            // identifying our expected recipient in the request; if this doesn't correspond to the worker we messaged, the
            // worker will return an HTTP 404 with its ID in the response header. If we get a mismatching task ID, then
            // we will wait for a short period then retry the request indefinitely, expecting the task's location to
            // eventually be updated.
            final Duration delay;
            if (response != null && !response.isValue() && response.error().getStatus().equals(HttpResponseStatus.NOT_FOUND)) {
                String headerId = StringUtils.urlDecode(response.error().getResponse().headers().get(ChatHandlerResource.TASK_ID_HEADER));
                if (headerId != null && !headerId.equals(taskId)) {
                    log.warn("Expected worker to have taskId [%s] but has taskId [%s], will retry in [%d]s", taskId, headerId, TASK_MISMATCH_RETRY_DELAY_SECONDS);
                    delay = Duration.standardSeconds(TASK_MISMATCH_RETRY_DELAY_SECONDS);
                } else {
                    delay = retryPolicy.getAndIncrementRetryDelay();
                }
            } else {
                delay = retryPolicy.getAndIncrementRetryDelay();
            }
            final String urlForLog = request.getUrl().toString();
            if (!retry) {
                // if retry=false, we probably aren't too concerned if the operation doesn't succeed (i.e. the request was
                // for informational purposes only); log at INFO instead of WARN.
                log.noStackTrace().info(e, "submitRequest failed for [%s]", urlForLog);
                throw e;
            } else if (delay == null) {
                // When retrying, log the final failure at WARN level, since it is likely to be bad news.
                log.warn(e, "submitRequest failed for [%s]", urlForLog);
                throw e;
            } else {
                try {
                    final long sleepTime = delay.getMillis();
                    // When retrying, log non-final failures at INFO level.
                    log.noStackTrace().info(e, "submitRequest failed for [%s]; will try again in [%s]", urlForLog, new Duration(sleepTime).toString());
                    Thread.sleep(sleepTime);
                } catch (InterruptedException e2) {
                    Thread.currentThread().interrupt();
                    e.addSuppressed(e2);
                    throw new RuntimeException(e);
                }
            }
        } catch (NoTaskLocationException e) {
            log.info("No TaskLocation available for task [%s], this task may not have been assigned to a worker yet " + "or may have already completed", taskId);
            throw e;
        } catch (Exception e) {
            log.warn(e, "Exception while sending request");
            throw e;
        }
    }
}

Example 5 with IOE

use of org.apache.druid.java.util.common.IOE in project druid by druid-io.

the class RemoteTaskActionClient method submit.

@Override
public <RetType> RetType submit(TaskAction<RetType> taskAction) throws IOException {
    log.debug("Performing action for task[%s]: %s", task.getId(), taskAction);
    byte[] dataToSend = jsonMapper.writeValueAsBytes(new TaskActionHolder(task, taskAction));
    final RetryPolicy retryPolicy = retryPolicyFactory.makeRetryPolicy();
    while (true) {
        try {
            final StringFullResponseHolder fullResponseHolder;
            log.debug("Submitting action for task[%s] to Overlord: %s", task.getId(), jsonMapper.writeValueAsString(taskAction));
            fullResponseHolder = druidLeaderClient.go(druidLeaderClient.makeRequest(HttpMethod.POST, "/druid/indexer/v1/action").setContent(MediaType.APPLICATION_JSON, dataToSend));
            if (fullResponseHolder.getStatus().getCode() / 100 == 2) {
                final Map<String, Object> responseDict = jsonMapper.readValue(fullResponseHolder.getContent(), JacksonUtils.TYPE_REFERENCE_MAP_STRING_OBJECT);
                return jsonMapper.convertValue(responseDict.get("result"), taskAction.getReturnTypeReference());
            } else {
                // Want to retry, so throw an IOException.
                throw new IOE("Error with status[%s] and message[%s]. Check overlord logs for details.", fullResponseHolder.getStatus(), fullResponseHolder.getContent());
            }
        } catch (IOException | ChannelException e) {
            log.noStackTrace().warn(e, "Exception submitting action for task[%s]: %s", task.getId(), jsonMapper.writeValueAsString(taskAction));
            final Duration delay = retryPolicy.getAndIncrementRetryDelay();
            if (delay == null) {
                throw e;
            } else {
                try {
                    final long sleepTime = jitter(delay.getMillis());
                    log.warn("Will try again in [%s].", new Duration(sleepTime).toString());
                    Thread.sleep(sleepTime);
                } catch (InterruptedException e2) {
                    throw new RuntimeException(e2);
                }
            }
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }
}