Examples with QueryInterruptedException org.apache.druid.query.QueryInterruptedException used on opensource projects

Example 1 with QueryInterruptedException

use of org.apache.druid.query.QueryInterruptedException in project druid by druid-io.

the class AsyncQueryForwardingServlet method handleException.

@VisibleForTesting
void handleException(HttpServletResponse response, ObjectMapper objectMapper, Exception exception) throws IOException {
    QueryInterruptedException exceptionToReport = QueryInterruptedException.wrapIfNeeded(exception);
    LOG.warn(exceptionToReport, "Unexpected exception occurs");
    if (!response.isCommitted()) {
        response.resetBuffer();
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        objectMapper.writeValue(response.getOutputStream(), serverConfig.getErrorResponseTransformStrategy().transformIfNeeded(exceptionToReport));
    }
    response.flushBuffer();
}

Example 2 with QueryInterruptedException

use of org.apache.druid.query.QueryInterruptedException in project druid by druid-io.

the class DirectDruidClientTest method testCancel.

@Test
public void testCancel() {
    Capture<Request> capturedRequest = EasyMock.newCapture();
    ListenableFuture<Object> cancelledFuture = Futures.immediateCancelledFuture();
    SettableFuture<Object> cancellationFuture = SettableFuture.create();
    EasyMock.expect(httpClient.go(EasyMock.capture(capturedRequest), EasyMock.<HttpResponseHandler>anyObject(), EasyMock.anyObject(Duration.class))).andReturn(cancelledFuture).once();
    EasyMock.expect(httpClient.go(EasyMock.capture(capturedRequest), EasyMock.<HttpResponseHandler>anyObject(), EasyMock.anyObject(Duration.class))).andReturn(cancellationFuture).anyTimes();
    EasyMock.replay(httpClient);
    TimeBoundaryQuery query = Druids.newTimeBoundaryQueryBuilder().dataSource("test").build();
    query = query.withOverriddenContext(ImmutableMap.of(DirectDruidClient.QUERY_FAIL_TIME, Long.MAX_VALUE));
    cancellationFuture.set(new StatusResponseHolder(HttpResponseStatus.OK, new StringBuilder("cancelled")));
    Sequence results = client.run(QueryPlus.wrap(query));
    Assert.assertEquals(HttpMethod.POST, capturedRequest.getValue().getMethod());
    Assert.assertEquals(0, client.getNumOpenConnections());
    QueryInterruptedException exception = null;
    try {
        results.toList();
    } catch (QueryInterruptedException e) {
        exception = e;
    }
    Assert.assertNotNull(exception);
    EasyMock.verify(httpClient);
}

Example 3 with QueryInterruptedException

use of org.apache.druid.query.QueryInterruptedException in project druid by druid-io.

the class PreResponseAuthorizationCheckFilter method handleUnauthenticatedRequest.

private void handleUnauthenticatedRequest(final HttpServletResponse response) throws IOException {
    // Since this is the last filter in the chain, some previous authentication filter
    // should have placed an authentication result in the request.
    // If not, send an authentication challenge.
    Set<String> supportedAuthSchemes = new HashSet<>();
    for (Authenticator authenticator : authenticators) {
        String challengeHeader = authenticator.getAuthChallengeHeader();
        if (challengeHeader != null) {
            supportedAuthSchemes.add(challengeHeader);
        }
    }
    for (String authScheme : supportedAuthSchemes) {
        response.addHeader("WWW-Authenticate", authScheme);
    }
    QueryInterruptedException unauthorizedError = new QueryInterruptedException(QueryInterruptedException.UNAUTHORIZED, null, null, DruidNode.getDefaultHost());
    unauthorizedError.setStackTrace(new StackTraceElement[0]);
    OutputStream out = response.getOutputStream();
    sendJsonError(response, HttpServletResponse.SC_UNAUTHORIZED, jsonMapper.writeValueAsString(unauthorizedError), out);
    out.close();
    return;
}

Example 4 with QueryInterruptedException

use of org.apache.druid.query.QueryInterruptedException in project druid by druid-io.

the class QueryResourceTest method testTruncatedResponseContextShouldFail.

@Test
public void testTruncatedResponseContextShouldFail() throws IOException {
    expectPermissiveHappyPathAuth();
    final QueryResource queryResource = createQueryResource(ResponseContextConfig.forTest(true, 0));
    Response response = queryResource.doPost(new ByteArrayInputStream(SIMPLE_TIMESERIES_QUERY.getBytes(StandardCharsets.UTF_8)), null, /*pretty*/
    testServletRequest);
    Assert.assertEquals(1, queryResource.getInterruptedQueryCount());
    Assert.assertNotNull(response);
    Assert.assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, response.getStatus());
    final String expectedException = new QueryInterruptedException(new TruncatedResponseContextException("Serialized response context exceeds the max size[0]"), DRUID_NODE.getHostAndPortToUse()).toString();
    Assert.assertEquals(expectedException, jsonMapper.readValue((byte[]) response.getEntity(), QueryInterruptedException.class).toString());
}

Example 5 with QueryInterruptedException

use of org.apache.druid.query.QueryInterruptedException in project druid by druid-io.

the class QueryResource method doPost.

@POST
@Produces({ MediaType.APPLICATION_JSON, SmileMediaTypes.APPLICATION_JACKSON_SMILE })
@Consumes({ MediaType.APPLICATION_JSON, SmileMediaTypes.APPLICATION_JACKSON_SMILE, APPLICATION_SMILE })
public Response doPost(final InputStream in, @QueryParam("pretty") final String pretty, // used to get request content-type,Accept header, remote address and auth-related headers
@Context final HttpServletRequest req) throws IOException {
    final QueryLifecycle queryLifecycle = queryLifecycleFactory.factorize();
    Query<?> query = null;
    final ResourceIOReaderWriter ioReaderWriter = createResourceIOReaderWriter(req, pretty != null);
    final String currThreadName = Thread.currentThread().getName();
    try {
        queryLifecycle.initialize(readQuery(req, in, ioReaderWriter));
        query = queryLifecycle.getQuery();
        final String queryId = query.getId();
        final String queryThreadName = StringUtils.format("%s[%s_%s_%s]", currThreadName, query.getType(), query.getDataSource().getTableNames(), queryId);
        Thread.currentThread().setName(queryThreadName);
        if (log.isDebugEnabled()) {
            log.debug("Got query [%s]", query);
        }
        final Access authResult = queryLifecycle.authorize(req);
        if (!authResult.isAllowed()) {
            throw new ForbiddenException(authResult.toString());
        }
        final QueryLifecycle.QueryResponse queryResponse = queryLifecycle.execute();
        final Sequence<?> results = queryResponse.getResults();
        final ResponseContext responseContext = queryResponse.getResponseContext();
        final String prevEtag = getPreviousEtag(req);
        if (prevEtag != null && prevEtag.equals(responseContext.getEntityTag())) {
            queryLifecycle.emitLogsAndMetrics(null, req.getRemoteAddr(), -1);
            successfulQueryCount.incrementAndGet();
            return Response.notModified().build();
        }
        final Yielder<?> yielder = Yielders.each(results);
        try {
            boolean shouldFinalize = QueryContexts.isFinalize(query, true);
            boolean serializeDateTimeAsLong = QueryContexts.isSerializeDateTimeAsLong(query, false) || (!shouldFinalize && QueryContexts.isSerializeDateTimeAsLongInner(query, false));
            final ObjectWriter jsonWriter = ioReaderWriter.getResponseWriter().newOutputWriter(queryLifecycle.getToolChest(), queryLifecycle.getQuery(), serializeDateTimeAsLong);
            Response.ResponseBuilder responseBuilder = Response.ok(new StreamingOutput() {

                @Override
                public void write(OutputStream outputStream) throws WebApplicationException {
                    Exception e = null;
                    CountingOutputStream os = new CountingOutputStream(outputStream);
                    try {
                        // json serializer will always close the yielder
                        jsonWriter.writeValue(os, yielder);
                        // Some types of OutputStream suppress flush errors in the .close() method.
                        os.flush();
                        os.close();
                    } catch (Exception ex) {
                        e = ex;
                        log.noStackTrace().error(ex, "Unable to send query response.");
                        throw new RuntimeException(ex);
                    } finally {
                        Thread.currentThread().setName(currThreadName);
                        queryLifecycle.emitLogsAndMetrics(e, req.getRemoteAddr(), os.getCount());
                        if (e == null) {
                            successfulQueryCount.incrementAndGet();
                        } else {
                            failedQueryCount.incrementAndGet();
                        }
                    }
                }
            }, ioReaderWriter.getResponseWriter().getResponseType()).header("X-Druid-Query-Id", queryId);
            transferEntityTag(responseContext, responseBuilder);
            DirectDruidClient.removeMagicResponseContextFields(responseContext);
            // Limit the response-context header, see https://github.com/apache/druid/issues/2331
            // Note that Response.ResponseBuilder.header(String key,Object value).build() calls value.toString()
            // and encodes the string using ASCII, so 1 char is = 1 byte
            final ResponseContext.SerializationResult serializationResult = responseContext.serializeWith(jsonMapper, responseContextConfig.getMaxResponseContextHeaderSize());
            if (serializationResult.isTruncated()) {
                final String logToPrint = StringUtils.format("Response Context truncated for id [%s]. Full context is [%s].", queryId, serializationResult.getFullResult());
                if (responseContextConfig.shouldFailOnTruncatedResponseContext()) {
                    log.error(logToPrint);
                    throw new QueryInterruptedException(new TruncatedResponseContextException("Serialized response context exceeds the max size[%s]", responseContextConfig.getMaxResponseContextHeaderSize()), selfNode.getHostAndPortToUse());
                } else {
                    log.warn(logToPrint);
                }
            }
            return responseBuilder.header(HEADER_RESPONSE_CONTEXT, serializationResult.getResult()).build();
        } catch (QueryException e) {
            // make sure to close yielder if anything happened before starting to serialize the response.
            yielder.close();
            throw e;
        } catch (Exception e) {
            // make sure to close yielder if anything happened before starting to serialize the response.
            yielder.close();
            throw new RuntimeException(e);
        } finally {
        // do not close yielder here, since we do not want to close the yielder prior to
        // StreamingOutput having iterated over all the results
        }
    } catch (QueryInterruptedException e) {
        interruptedQueryCount.incrementAndGet();
        queryLifecycle.emitLogsAndMetrics(e, req.getRemoteAddr(), -1);
        return ioReaderWriter.getResponseWriter().gotError(e);
    } catch (QueryTimeoutException timeout) {
        timedOutQueryCount.incrementAndGet();
        queryLifecycle.emitLogsAndMetrics(timeout, req.getRemoteAddr(), -1);
        return ioReaderWriter.getResponseWriter().gotTimeout(timeout);
    } catch (QueryCapacityExceededException cap) {
        failedQueryCount.incrementAndGet();
        queryLifecycle.emitLogsAndMetrics(cap, req.getRemoteAddr(), -1);
        return ioReaderWriter.getResponseWriter().gotLimited(cap);
    } catch (QueryUnsupportedException unsupported) {
        failedQueryCount.incrementAndGet();
        queryLifecycle.emitLogsAndMetrics(unsupported, req.getRemoteAddr(), -1);
        return ioReaderWriter.getResponseWriter().gotUnsupported(unsupported);
    } catch (BadJsonQueryException | ResourceLimitExceededException e) {
        interruptedQueryCount.incrementAndGet();
        queryLifecycle.emitLogsAndMetrics(e, req.getRemoteAddr(), -1);
        return ioReaderWriter.getResponseWriter().gotBadQuery(e);
    } catch (ForbiddenException e) {
        // send an error response if this is thrown.
        throw e;
    } catch (Exception e) {
        failedQueryCount.incrementAndGet();
        queryLifecycle.emitLogsAndMetrics(e, req.getRemoteAddr(), -1);
        log.noStackTrace().makeAlert(e, "Exception handling request").addData("query", query != null ? jsonMapper.writeValueAsString(query) : "unparseable query").addData("peer", req.getRemoteAddr()).emit();
        return ioReaderWriter.getResponseWriter().gotError(e);
    } finally {
        Thread.currentThread().setName(currThreadName);
    }
}