Examples with ConnectTransportException org.opensearch.transport.ConnectTransportException used on opensource projects

Example 6 with ConnectTransportException

use of org.opensearch.transport.ConnectTransportException in project OpenSearch by opensearch-project.

the class TransportInstanceSingleOperationActionTests method testRetryOfAnAlreadyTimedOutRequest.

public void testRetryOfAnAlreadyTimedOutRequest() throws Exception {
    Request request = new Request().index("test").timeout(new TimeValue(0, TimeUnit.MILLISECONDS));
    request.shardId = new ShardId("test", "_na_", 0);
    PlainActionFuture<Response> listener = new PlainActionFuture<>();
    setState(clusterService, ClusterStateCreationUtils.state("test", randomBoolean(), ShardRoutingState.STARTED));
    action.new AsyncSingleAction(request, listener).start();
    assertThat(transport.capturedRequests().length, equalTo(1));
    long requestId = transport.capturedRequests()[0].requestId;
    transport.clear();
    DiscoveryNode node = clusterService.state().getNodes().getLocalNode();
    transport.handleLocalError(requestId, new ConnectTransportException(node, "test exception"));
    // wait until the timeout was triggered and we actually tried to send for the second time
    assertBusy(() -> assertThat(transport.capturedRequests().length, equalTo(1)));
    // let it fail the second time too
    requestId = transport.capturedRequests()[0].requestId;
    transport.handleLocalError(requestId, new ConnectTransportException(node, "test exception"));
    try {
        // result should return immediately
        assertTrue(listener.isDone());
        listener.get();
        fail("this should fail with a transport exception");
    } catch (ExecutionException t) {
        if (ExceptionsHelper.unwrap(t, ConnectTransportException.class) == null) {
            logger.info("expected ConnectTransportException  but got ", t);
            fail("expected and ConnectTransportException");
        }
    }
}

Example 7 with ConnectTransportException

use of org.opensearch.transport.ConnectTransportException in project OpenSearch by opensearch-project.

the class TransportInstanceSingleOperationActionTests method testSuccessAfterRetryWithExceptionFromTransport.

public void testSuccessAfterRetryWithExceptionFromTransport() throws Exception {
    Request request = new Request().index("test");
    request.shardId = new ShardId("test", "_na_", 0);
    PlainActionFuture<Response> listener = new PlainActionFuture<>();
    boolean local = randomBoolean();
    setState(clusterService, ClusterStateCreationUtils.state("test", local, ShardRoutingState.STARTED));
    action.new AsyncSingleAction(request, listener).start();
    assertThat(transport.capturedRequests().length, equalTo(1));
    long requestId = transport.capturedRequests()[0].requestId;
    transport.clear();
    DiscoveryNode node = clusterService.state().getNodes().getLocalNode();
    transport.handleLocalError(requestId, new ConnectTransportException(node, "test exception"));
    // trigger cluster state observer
    setState(clusterService, ClusterStateCreationUtils.state("test", local, ShardRoutingState.STARTED));
    assertThat(transport.capturedRequests().length, equalTo(1));
    transport.handleResponse(transport.capturedRequests()[0].requestId, new Response());
    listener.get();
}

Example 8 with ConnectTransportException

use of org.opensearch.transport.ConnectTransportException in project OpenSearch by opensearch-project.

the class SimpleNetty4TransportTests method testConnectException.

public void testConnectException() throws UnknownHostException {
    try {
        serviceA.connectToNode(new DiscoveryNode("C", new TransportAddress(InetAddress.getByName("localhost"), 9876), emptyMap(), emptySet(), Version.CURRENT));
        fail("Expected ConnectTransportException");
    } catch (ConnectTransportException e) {
        assertThat(e.getMessage(), containsString("connect_exception"));
        assertThat(e.getMessage(), containsString("[127.0.0.1:9876]"));
    }
}

Example 9 with ConnectTransportException

use of org.opensearch.transport.ConnectTransportException in project OpenSearch by opensearch-project.

the class IndexRecoveryIT method testDisconnectsDuringRecovery.

/**
 * Tests scenario where recovery target successfully sends recovery request to source but then the channel gets closed while
 * the source is working on the recovery process.
 */
public void testDisconnectsDuringRecovery() throws Exception {
    boolean primaryRelocation = randomBoolean();
    final String indexName = "test";
    final Settings nodeSettings = Settings.builder().put(RecoverySettings.INDICES_RECOVERY_RETRY_DELAY_NETWORK_SETTING.getKey(), TimeValue.timeValueMillis(randomIntBetween(0, 100))).build();
    TimeValue disconnectAfterDelay = TimeValue.timeValueMillis(randomIntBetween(0, 100));
    // start a master node
    String masterNodeName = internalCluster().startMasterOnlyNode(nodeSettings);
    final String blueNodeName = internalCluster().startNode(Settings.builder().put("node.attr.color", "blue").put(nodeSettings).build());
    final String redNodeName = internalCluster().startNode(Settings.builder().put("node.attr.color", "red").put(nodeSettings).build());
    client().admin().indices().prepareCreate(indexName).setSettings(Settings.builder().put(IndexMetadata.INDEX_ROUTING_INCLUDE_GROUP_SETTING.getKey() + "color", "blue").put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1).put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 0)).get();
    List<IndexRequestBuilder> requests = new ArrayList<>();
    int numDocs = scaledRandomIntBetween(25, 250);
    for (int i = 0; i < numDocs; i++) {
        requests.add(client().prepareIndex(indexName).setSource("{}", XContentType.JSON));
    }
    indexRandom(true, requests);
    ensureSearchable(indexName);
    assertHitCount(client().prepareSearch(indexName).get(), numDocs);
    MockTransportService masterTransportService = (MockTransportService) internalCluster().getInstance(TransportService.class, masterNodeName);
    MockTransportService blueMockTransportService = (MockTransportService) internalCluster().getInstance(TransportService.class, blueNodeName);
    MockTransportService redMockTransportService = (MockTransportService) internalCluster().getInstance(TransportService.class, redNodeName);
    redMockTransportService.addSendBehavior(blueMockTransportService, new StubbableTransport.SendRequestBehavior() {

        private final AtomicInteger count = new AtomicInteger();

        @Override
        public void sendRequest(Transport.Connection connection, long requestId, String action, TransportRequest request, TransportRequestOptions options) throws IOException {
            logger.info("--> sending request {} on {}", action, connection.getNode());
            if (PeerRecoverySourceService.Actions.START_RECOVERY.equals(action) && count.incrementAndGet() == 1) {
                // ensures that it's considered as valid recovery attempt by source
                try {
                    assertBusy(() -> assertThat("Expected there to be some initializing shards", client(blueNodeName).admin().cluster().prepareState().setLocal(true).get().getState().getRoutingTable().index("test").shard(0).getAllInitializingShards(), not(empty())));
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
                connection.sendRequest(requestId, action, request, options);
                try {
                    Thread.sleep(disconnectAfterDelay.millis());
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                throw new ConnectTransportException(connection.getNode(), "DISCONNECT: simulation disconnect after successfully sending " + action + " request");
            } else {
                connection.sendRequest(requestId, action, request, options);
            }
        }
    });
    final AtomicBoolean finalized = new AtomicBoolean();
    blueMockTransportService.addSendBehavior(redMockTransportService, (connection, requestId, action, request, options) -> {
        logger.info("--> sending request {} on {}", action, connection.getNode());
        if (action.equals(PeerRecoveryTargetService.Actions.FINALIZE)) {
            finalized.set(true);
        }
        connection.sendRequest(requestId, action, request, options);
    });
    for (MockTransportService mockTransportService : Arrays.asList(redMockTransportService, blueMockTransportService)) {
        mockTransportService.addSendBehavior(masterTransportService, (connection, requestId, action, request, options) -> {
            logger.info("--> sending request {} on {}", action, connection.getNode());
            if ((primaryRelocation && finalized.get()) == false) {
                assertNotEquals(action, ShardStateAction.SHARD_FAILED_ACTION_NAME);
            }
            connection.sendRequest(requestId, action, request, options);
        });
    }
    if (primaryRelocation) {
        logger.info("--> starting primary relocation recovery from blue to red");
        client().admin().indices().prepareUpdateSettings(indexName).setSettings(Settings.builder().put(IndexMetadata.INDEX_ROUTING_INCLUDE_GROUP_SETTING.getKey() + "color", "red")).get();
        // also waits for relocation / recovery to complete
        ensureGreen();
        // if a primary relocation fails after the source shard has been marked as relocated, both source and target are failed. If the
        // source shard is moved back to started because the target fails first, it's possible that there is a cluster state where the
        // shard is marked as started again (and ensureGreen returns), but while applying the cluster state the primary is failed and
        // will be reallocated. The cluster will thus become green, then red, then green again. Triggering a refresh here before
        // searching helps, as in contrast to search actions, refresh waits for the closed shard to be reallocated.
        client().admin().indices().prepareRefresh(indexName).get();
    } else {
        logger.info("--> starting replica recovery from blue to red");
        client().admin().indices().prepareUpdateSettings(indexName).setSettings(Settings.builder().put(IndexMetadata.INDEX_ROUTING_INCLUDE_GROUP_SETTING.getKey() + "color", "red,blue").put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 1)).get();
        ensureGreen();
    }
    for (int i = 0; i < 10; i++) {
        assertHitCount(client().prepareSearch(indexName).get(), numDocs);
    }
}

Example 10 with ConnectTransportException

use of org.opensearch.transport.ConnectTransportException in project OpenSearch by opensearch-project.

the class ExceptionRetryIT method testRetryDueToExceptionOnNetworkLayer.

/**
 * Tests retry mechanism when indexing. If an exception occurs when indexing then the indexing request is tried again before finally
 * failing. If auto generated ids are used this must not lead to duplicate ids
 * see https://github.com/elastic/elasticsearch/issues/8788
 */
public void testRetryDueToExceptionOnNetworkLayer() throws ExecutionException, InterruptedException, IOException {
    final AtomicBoolean exceptionThrown = new AtomicBoolean(false);
    int numDocs = scaledRandomIntBetween(100, 1000);
    Client client = internalCluster().coordOnlyNodeClient();
    NodesStatsResponse nodeStats = client().admin().cluster().prepareNodesStats().get();
    NodeStats unluckyNode = randomFrom(nodeStats.getNodes().stream().filter((s) -> s.getNode().isDataNode()).collect(Collectors.toList()));
    assertAcked(client().admin().indices().prepareCreate("index").setSettings(Settings.builder().put("index.number_of_replicas", 1).put("index.number_of_shards", 5)));
    ensureGreen("index");
    logger.info("unlucky node: {}", unluckyNode.getNode());
    // create a transport service that throws a ConnectTransportException for one bulk request and therefore triggers a retry.
    for (NodeStats dataNode : nodeStats.getNodes()) {
        MockTransportService mockTransportService = ((MockTransportService) internalCluster().getInstance(TransportService.class, dataNode.getNode().getName()));
        mockTransportService.addSendBehavior(internalCluster().getInstance(TransportService.class, unluckyNode.getNode().getName()), (connection, requestId, action, request, options) -> {
            connection.sendRequest(requestId, action, request, options);
            if (action.equals(TransportShardBulkAction.ACTION_NAME) && exceptionThrown.compareAndSet(false, true)) {
                logger.debug("Throw ConnectTransportException");
                throw new ConnectTransportException(connection.getNode(), action);
            }
        });
    }
    BulkRequestBuilder bulkBuilder = client.prepareBulk();
    for (int i = 0; i < numDocs; i++) {
        XContentBuilder doc = null;
        doc = jsonBuilder().startObject().field("foo", "bar").endObject();
        bulkBuilder.add(client.prepareIndex("index").setSource(doc));
    }
    BulkResponse response = bulkBuilder.get();
    if (response.hasFailures()) {
        for (BulkItemResponse singleIndexRespons : response.getItems()) {
            if (singleIndexRespons.isFailed()) {
                fail("None of the bulk items should fail but got " + singleIndexRespons.getFailureMessage());
            }
        }
    }
    refresh();
    SearchResponse searchResponse = client().prepareSearch("index").setSize(numDocs * 2).addStoredField("_id").get();
    Set<String> uniqueIds = new HashSet<>();
    long dupCounter = 0;
    boolean found_duplicate_already = false;
    for (int i = 0; i < searchResponse.getHits().getHits().length; i++) {
        if (!uniqueIds.add(searchResponse.getHits().getHits()[i].getId())) {
            if (!found_duplicate_already) {
                SearchResponse dupIdResponse = client().prepareSearch("index").setQuery(termQuery("_id", searchResponse.getHits().getHits()[i].getId())).setExplain(true).get();
                assertThat(dupIdResponse.getHits().getTotalHits().value, greaterThan(1L));
                logger.info("found a duplicate id:");
                for (SearchHit hit : dupIdResponse.getHits()) {
                    logger.info("Doc {} was found on shard {}", hit.getId(), hit.getShard().getShardId());
                }
                logger.info("will not print anymore in case more duplicates are found.");
                found_duplicate_already = true;
            }
            dupCounter++;
        }
    }
    assertSearchResponse(searchResponse);
    assertThat(dupCounter, equalTo(0L));
    assertHitCount(searchResponse, numDocs);
    IndicesStatsResponse index = client().admin().indices().prepareStats("index").clear().setSegments(true).get();
    IndexStats indexStats = index.getIndex("index");
    long maxUnsafeAutoIdTimestamp = Long.MIN_VALUE;
    for (IndexShardStats indexShardStats : indexStats) {
        for (ShardStats shardStats : indexShardStats) {
            SegmentsStats segments = shardStats.getStats().getSegments();
            maxUnsafeAutoIdTimestamp = Math.max(maxUnsafeAutoIdTimestamp, segments.getMaxUnsafeAutoIdTimestamp());
        }
    }
    assertTrue("exception must have been thrown otherwise setup is broken", exceptionThrown.get());
    assertTrue("maxUnsafeAutoIdTimestamp must be > than 0 we have at least one retry", maxUnsafeAutoIdTimestamp > -1);
}