Examples with StartRecoveryRequest org.opensearch.indices.recovery.StartRecoveryRequest used on opensource projects

Example 1 with StartRecoveryRequest

use of org.opensearch.indices.recovery.StartRecoveryRequest in project OpenSearch by opensearch-project.

the class IndexShardTestCase method recoverUnstartedReplica.

/**
 * Recovers a replica from the give primary, allow the user to supply a custom recovery target. A typical usage of a custom recovery
 * target is to assert things in the various stages of recovery.
 *
 * Note: this method keeps the shard in {@link IndexShardState#POST_RECOVERY} and doesn't start it.
 *
 * @param replica                the recovery target shard
 * @param primary                the recovery source shard
 * @param targetSupplier         supplies an instance of {@link RecoveryTarget}
 * @param markAsRecovering       set to {@code false} if the replica is marked as recovering
 */
protected final void recoverUnstartedReplica(final IndexShard replica, final IndexShard primary, final BiFunction<IndexShard, DiscoveryNode, RecoveryTarget> targetSupplier, final boolean markAsRecovering, final Set<String> inSyncIds, final IndexShardRoutingTable routingTable) throws IOException {
    final DiscoveryNode pNode = getFakeDiscoNode(primary.routingEntry().currentNodeId());
    final DiscoveryNode rNode = getFakeDiscoNode(replica.routingEntry().currentNodeId());
    if (markAsRecovering) {
        replica.markAsRecovering("remote", new RecoveryState(replica.routingEntry(), pNode, rNode));
    } else {
        assertEquals(replica.state(), IndexShardState.RECOVERING);
    }
    replica.prepareForIndexRecovery();
    final RecoveryTarget recoveryTarget = targetSupplier.apply(replica, pNode);
    final long startingSeqNo = recoveryTarget.indexShard().recoverLocallyUpToGlobalCheckpoint();
    final StartRecoveryRequest request = PeerRecoveryTargetService.getStartRecoveryRequest(logger, rNode, recoveryTarget, startingSeqNo);
    int fileChunkSizeInBytes = Math.toIntExact(randomBoolean() ? RecoverySettings.DEFAULT_CHUNK_SIZE.getBytes() : randomIntBetween(1, 10 * 1024 * 1024));
    final RecoverySourceHandler recovery = new RecoverySourceHandler(primary, new AsyncRecoveryTarget(recoveryTarget, threadPool.generic()), threadPool, request, fileChunkSizeInBytes, between(1, 8), between(1, 8));
    primary.updateShardState(primary.routingEntry(), primary.getPendingPrimaryTerm(), null, currentClusterStateVersion.incrementAndGet(), inSyncIds, routingTable);
    try {
        PlainActionFuture<RecoveryResponse> future = new PlainActionFuture<>();
        recovery.recoverToTarget(future);
        future.actionGet();
        recoveryTarget.markAsDone();
    } catch (Exception e) {
        recoveryTarget.fail(new RecoveryFailedException(request, e), false);
        throw e;
    }
}

Example 2 with StartRecoveryRequest

use of org.opensearch.indices.recovery.StartRecoveryRequest in project OpenSearch by opensearch-project.

the class CloseWhileRelocatingShardsIT method testCloseWhileRelocatingShards.

public void testCloseWhileRelocatingShards() throws Exception {
    final String[] indices = new String[randomIntBetween(3, 5)];
    final Map<String, Long> docsPerIndex = new HashMap<>();
    final Map<String, BackgroundIndexer> indexers = new HashMap<>();
    for (int i = 0; i < indices.length; i++) {
        final String indexName = "index-" + i;
        int nbDocs = 0;
        switch(i) {
            case 0:
                logger.debug("creating empty index {}", indexName);
                createIndex(indexName);
                break;
            case 1:
                nbDocs = scaledRandomIntBetween(1, 100);
                logger.debug("creating index {} with {} documents", indexName, nbDocs);
                createIndex(indexName);
                indexRandom(randomBoolean(), IntStream.range(0, nbDocs).mapToObj(n -> client().prepareIndex(indexName).setSource("num", n)).collect(Collectors.toList()));
                break;
            default:
                logger.debug("creating index {} with background indexing", indexName);
                final BackgroundIndexer indexer = new BackgroundIndexer(indexName, "_doc", client(), -1, 1);
                indexers.put(indexName, indexer);
                indexer.setFailureAssertion(t -> assertException(t, indexName));
                waitForDocs(1, indexer);
        }
        docsPerIndex.put(indexName, (long) nbDocs);
        indices[i] = indexName;
    }
    ensureGreen(TimeValue.timeValueSeconds(60L), indices);
    assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(Settings.builder().put(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey(), Rebalance.NONE.toString())));
    final String targetNode = internalCluster().startDataOnlyNode();
    // wait for the cluster-manager to finish processing join.
    ensureClusterSizeConsistency();
    try {
        final ClusterService clusterService = internalCluster().getInstance(ClusterService.class, internalCluster().getMasterName());
        final ClusterState state = clusterService.state();
        final CountDownLatch latch = new CountDownLatch(indices.length);
        final CountDownLatch release = new CountDownLatch(indices.length);
        // relocate one shard for every index to be closed
        final AllocationCommands commands = new AllocationCommands();
        for (final String index : indices) {
            final NumShards numShards = getNumShards(index);
            final int shardId = numShards.numPrimaries == 1 ? 0 : randomIntBetween(0, numShards.numPrimaries - 1);
            final IndexRoutingTable indexRoutingTable = state.routingTable().index(index);
            final ShardRouting primary = indexRoutingTable.shard(shardId).primaryShard();
            assertTrue(primary.started());
            String currentNodeId = primary.currentNodeId();
            if (numShards.numReplicas > 0) {
                final ShardRouting replica = indexRoutingTable.shard(shardId).replicaShards().iterator().next();
                assertTrue(replica.started());
                if (randomBoolean()) {
                    currentNodeId = replica.currentNodeId();
                }
            }
            commands.add(new MoveAllocationCommand(index, shardId, state.nodes().resolveNode(currentNodeId).getName(), targetNode));
        }
        // Build the list of shards for which recoveries will be blocked
        final Set<ShardId> blockedShards = commands.commands().stream().map(c -> (MoveAllocationCommand) c).map(c -> new ShardId(clusterService.state().metadata().index(c.index()).getIndex(), c.shardId())).collect(Collectors.toSet());
        assertThat(blockedShards, hasSize(indices.length));
        final Set<String> acknowledgedCloses = ConcurrentCollections.newConcurrentSet();
        final Set<String> interruptedRecoveries = ConcurrentCollections.newConcurrentSet();
        // Create a SendRequestBehavior that will block outgoing start recovery request
        final StubbableTransport.SendRequestBehavior sendBehavior = (connection, requestId, action, request, options) -> {
            if (PeerRecoverySourceService.Actions.START_RECOVERY.equals(action)) {
                final StartRecoveryRequest startRecoveryRequest = ((StartRecoveryRequest) request);
                if (blockedShards.contains(startRecoveryRequest.shardId())) {
                    logger.debug("blocking recovery of shard {}", startRecoveryRequest.shardId());
                    latch.countDown();
                    try {
                        release.await();
                        logger.debug("releasing recovery of shard {}", startRecoveryRequest.shardId());
                    } catch (final InterruptedException e) {
                        logger.warn(() -> new ParameterizedMessage("exception when releasing recovery of shard {}", startRecoveryRequest.shardId()), e);
                        interruptedRecoveries.add(startRecoveryRequest.shardId().getIndexName());
                        Thread.currentThread().interrupt();
                        return;
                    }
                }
            }
            connection.sendRequest(requestId, action, request, options);
        };
        final MockTransportService targetTransportService = (MockTransportService) internalCluster().getInstance(TransportService.class, targetNode);
        for (DiscoveryNode node : state.getNodes()) {
            if (node.isDataNode() && node.getName().equals(targetNode) == false) {
                final TransportService sourceTransportService = internalCluster().getInstance(TransportService.class, node.getName());
                targetTransportService.addSendBehavior(sourceTransportService, sendBehavior);
            }
        }
        assertAcked(client().admin().cluster().reroute(new ClusterRerouteRequest().commands(commands)).get());
        // start index closing threads
        final List<Thread> threads = new ArrayList<>();
        for (final String indexToClose : indices) {
            final Thread thread = new Thread(() -> {
                try {
                    latch.await();
                } catch (InterruptedException e) {
                    throw new AssertionError(e);
                } finally {
                    release.countDown();
                }
                // Closing is not always acknowledged when shards are relocating: this is the case when the target shard is initializing
                // or is catching up operations. In these cases the TransportVerifyShardBeforeCloseAction will detect that the global
                // and max sequence number don't match and will not ack the close.
                AcknowledgedResponse closeResponse = client().admin().indices().prepareClose(indexToClose).get();
                if (closeResponse.isAcknowledged()) {
                    assertTrue("Index closing should not be acknowledged twice", acknowledgedCloses.add(indexToClose));
                }
            });
            threads.add(thread);
            thread.start();
        }
        latch.countDown();
        for (Thread thread : threads) {
            thread.join();
        }
        // stop indexers first without waiting for stop to not redundantly index on some while waiting for another one to stop
        for (BackgroundIndexer indexer : indexers.values()) {
            indexer.stop();
        }
        for (Map.Entry<String, BackgroundIndexer> entry : indexers.entrySet()) {
            final BackgroundIndexer indexer = entry.getValue();
            indexer.awaitStopped();
            final String indexName = entry.getKey();
            docsPerIndex.computeIfPresent(indexName, (key, value) -> value + indexer.totalIndexedDocs());
        }
        for (String index : indices) {
            if (acknowledgedCloses.contains(index)) {
                assertIndexIsClosed(index);
            } else {
                assertIndexIsOpened(index);
            }
        }
        targetTransportService.clearAllRules();
        // If a shard recovery has been interrupted, we expect its index to be closed
        interruptedRecoveries.forEach(CloseIndexIT::assertIndexIsClosed);
        assertThat("Consider that the test failed if no indices were successfully closed", acknowledgedCloses.size(), greaterThan(0));
        assertAcked(client().admin().indices().prepareOpen("index-*"));
        ensureGreen(indices);
        for (String index : acknowledgedCloses) {
            long docsCount = client().prepareSearch(index).setSize(0).setTrackTotalHits(true).get().getHits().getTotalHits().value;
            assertEquals("Expected " + docsPerIndex.get(index) + " docs in index " + index + " but got " + docsCount + " (close acknowledged=" + acknowledgedCloses.contains(index) + ")", (long) docsPerIndex.get(index), docsCount);
        }
    } finally {
        assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(Settings.builder().putNull(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey())));
    }
}