Examples with Store com.github.ambry.store.Store used on opensource projects

Example 31 with Store

use of com.github.ambry.store.Store in project ambry by linkedin.

the class StatsManagerTest method testStatsManagerWithProblematicStores.

/**
 * Test to verify the behavior when dealing with {@link Store} that is null and when {@link StoreException} is thrown.
 * @throws Exception
 */
@Test
public void testStatsManagerWithProblematicStores() throws Exception {
    DataNodeId dataNodeId = new MockDataNodeId(Collections.singletonList(new Port(6667, PortType.PLAINTEXT)), Collections.singletonList("/tmp"), "DC1");
    Map<PartitionId, Store> problematicStoreMap = new HashMap<>();
    PartitionId partitionId1 = new MockPartitionId(1, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
    PartitionId partitionId2 = new MockPartitionId(2, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
    problematicStoreMap.put(partitionId1, null);
    Store exceptionStore = new MockStore(new MockStoreStats(new HashMap<>(), true));
    problematicStoreMap.put(partitionId2, exceptionStore);
    StatsManager testStatsManager = new StatsManager(new MockStorageManager(problematicStoreMap, dataNodeId), Arrays.asList(partitionId1.getReplicaIds().get(0), partitionId2.getReplicaIds().get(0)), new MetricRegistry(), statsManagerConfig, new MockTime(), null, null, inMemoryAccountService);
    List<PartitionId> unreachablePartitions = new ArrayList<>();
    Map<Long, Map<Short, Map<Short, ContainerStorageStats>>> hostAccountStorageStatsMap = new HashMap<>();
    for (PartitionId partitionId : problematicStoreMap.keySet()) {
        testStatsManager.collectAndAggregateAccountStorageStats(hostAccountStorageStatsMap, partitionId, unreachablePartitions);
    }
    assertEquals("Aggregated map should not contain any value", 0L, hostAccountStorageStatsMap.size());
    assertEquals("Unreachable store count mismatch with expected value", 2, unreachablePartitions.size());
    StatsManager.AccountStatsPublisher publisher = testStatsManager.new AccountStatsPublisher(accountStatsStore);
    publisher.run();
    HostAccountStorageStatsWrapper statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    List<String> unreachableStores = statsWrapper.getHeader().getUnreachableStores();
    assertTrue("The unreachable store list should contain Partition1 and Partition2", unreachableStores.containsAll(Arrays.asList(partitionId1.toPathString(), partitionId2.toPathString())));
    // test for the scenario where some stores are healthy and some are bad
    Map<PartitionId, Store> mixedStoreMap = new HashMap<>(storeMap);
    unreachablePartitions.clear();
    PartitionId partitionId3 = new MockPartitionId(3, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
    PartitionId partitionId4 = new MockPartitionId(4, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
    mixedStoreMap.put(partitionId3, null);
    mixedStoreMap.put(partitionId4, exceptionStore);
    testStatsManager = new StatsManager(new MockStorageManager(mixedStoreMap, dataNodeId), Arrays.asList(partitionId3.getReplicaIds().get(0), partitionId4.getReplicaIds().get(0)), new MetricRegistry(), statsManagerConfig, new MockTime(), null, null, inMemoryAccountService);
    hostAccountStorageStatsMap.clear();
    for (PartitionId partitionId : mixedStoreMap.keySet()) {
        testStatsManager.collectAndAggregateAccountStorageStats(hostAccountStorageStatsMap, partitionId, unreachablePartitions);
    }
    assertEquals("Unreachable store count mismatch with expected value", 2, unreachablePartitions.size());
    // test fetchSnapshot method in StatsManager
    unreachablePartitions.clear();
    // partition 0, 1, 2 are healthy stores, partition 3, 4 are bad ones.
    for (PartitionId partitionId : mixedStoreMap.keySet()) {
        Map<Short, Map<Short, ContainerStorageStats>> containerStatsMapForPartition = hostAccountStorageStatsMap.get(partitionId.getId());
        if (partitionId.getId() < 3) {
            assertEquals("Actual map does not match with expected snapshot with partition id " + partitionId.toPathString(), hostAccountStorageStats.getStorageStats().get(partitionId.getId()), containerStatsMapForPartition);
        }
    }
}

Example 32 with Store

use of com.github.ambry.store.Store in project ambry by linkedin.

the class StatsManagerTest method testAddAndRemoveReplica.

/**
 * Test to verify the {@link StatsManager} behaves correctly when dynamically adding/removing {@link ReplicaId}.
 * @throws Exception
 */
@Test
public void testAddAndRemoveReplica() throws Exception {
    // setup testing environment
    Map<PartitionId, Store> testStoreMap = new HashMap<>();
    List<ReplicaId> testReplicas = new ArrayList<>();
    DataNodeId dataNodeId = new MockDataNodeId(Collections.singletonList(new Port(6667, PortType.PLAINTEXT)), Collections.singletonList("/tmp"), "DC1");
    for (int i = 0; i < 3; i++) {
        PartitionId partitionId = new MockPartitionId(i, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
        testStoreMap.put(partitionId, new MockStore(new MockStoreStats(hostAccountStorageStats.getStorageStats().get(i), false)));
        testReplicas.add(partitionId.getReplicaIds().get(0));
    }
    StorageManager mockStorageManager = new MockStorageManager(testStoreMap, dataNodeId);
    StatsManager testStatsManager = new StatsManager(mockStorageManager, testReplicas, new MetricRegistry(), statsManagerConfig, new MockTime(), null, null, inMemoryAccountService);
    // verify that adding an existing store to StatsManager should fail
    assertFalse("Adding a store which already exists should fail", testStatsManager.addReplica(testReplicas.get(0)));
    PartitionId partitionId3 = new MockPartitionId(3, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
    testStoreMap.put(partitionId3, new MockStore(new MockStoreStats(hostAccountStorageStats.getStorageStats().get(0), false)));
    // verify that partitionId3 is not in stats report before adding to statsManager
    StatsManager.AccountStatsPublisher publisher = testStatsManager.new AccountStatsPublisher(accountStatsStore);
    publisher.run();
    HostAccountStorageStatsWrapper statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    assertFalse("Partition3 should not present in stats report", statsWrapper.getStats().getStorageStats().containsKey(partitionId3.getId()));
    // verify that after adding into statsManager, PartitionId3 is in stats report
    testStatsManager.addReplica(partitionId3.getReplicaIds().get(0));
    publisher.run();
    statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    assertTrue("Partition3 should present in stats report", statsWrapper.getStats().getStorageStats().containsKey(partitionId3.getId()));
    // verify that after removing PartitionId0 (corresponding to the first replica in replicas list), PartitionId0 is not in the stats report
    PartitionId partitionId0 = testReplicas.get(0).getPartitionId();
    assertTrue("Partition0 should present in stats report before removal", statsWrapper.getStats().getStorageStats().containsKey(partitionId0.getId()));
    testStoreMap.remove(testReplicas.get(0).getPartitionId());
    testStatsManager.removeReplica(testReplicas.get(0));
    publisher.run();
    statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    assertFalse("Partition0 should not present in stats report after removal", statsWrapper.getStats().getStorageStats().containsKey(partitionId0.getId()));
    // verify that removing the PartitionId0 should fail because it no longer exists in StatsManager
    assertFalse(testStatsManager.removeReplica(testReplicas.get(0)));
    // concurrent remove test
    CountDownLatch getStatsCountdown1 = new CountDownLatch(1);
    CountDownLatch waitRemoveCountdown = new CountDownLatch(1);
    ((MockStorageManager) mockStorageManager).waitOperationCountdown = waitRemoveCountdown;
    ((MockStorageManager) mockStorageManager).firstCall = true;
    ((MockStorageManager) mockStorageManager).unreachablePartitions.clear();
    for (Store store : testStoreMap.values()) {
        ((MockStore) store).getStatsCountdown = getStatsCountdown1;
        ((MockStore) store).isCollected = false;
    }
    List<PartitionId> partitionRemoved = new ArrayList<>();
    Utils.newThread(() -> {
        // wait until at least one store has been collected (this ensures stats aggregation using old snapshot of map)
        try {
            getStatsCountdown1.await();
        } catch (InterruptedException e) {
            throw new IllegalStateException("CountDown await was interrupted", e);
        }
        // find one store which hasn't been collected
        ReplicaId replicaToRemove = null;
        for (Map.Entry<PartitionId, Store> partitionToStore : testStoreMap.entrySet()) {
            MockStore store = (MockStore) partitionToStore.getValue();
            if (!store.isCollected) {
                replicaToRemove = partitionToStore.getKey().getReplicaIds().get(0);
                break;
            }
        }
        if (replicaToRemove != null) {
            testStatsManager.removeReplica(replicaToRemove);
            testStoreMap.remove(replicaToRemove.getPartitionId());
            partitionRemoved.add(replicaToRemove.getPartitionId());
            // count down to allow stats aggregation to proceed
            waitRemoveCountdown.countDown();
        }
    }, false).start();
    publisher.run();
    statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    // verify that the removed store is indeed unreachable during stats aggregation
    assertTrue("The removed partition should be unreachable during aggregation", ((MockStorageManager) mockStorageManager).unreachablePartitions.contains(partitionRemoved.get(0)));
    // verify unreachable store list doesn't contain the store which is removed.
    List<String> unreachableStores = statsWrapper.getHeader().getUnreachableStores();
    assertFalse("The removed partition should not present in unreachable list", unreachableStores.contains(partitionRemoved.get(0).toPathString()));
    // concurrent add test
    CountDownLatch getStatsCountdown2 = new CountDownLatch(1);
    CountDownLatch waitAddCountdown = new CountDownLatch(1);
    ((MockStorageManager) mockStorageManager).waitOperationCountdown = waitAddCountdown;
    ((MockStorageManager) mockStorageManager).firstCall = true;
    ((MockStorageManager) mockStorageManager).unreachablePartitions.clear();
    for (Store store : testStoreMap.values()) {
        ((MockStore) store).getStatsCountdown = getStatsCountdown2;
        ((MockStore) store).isCollected = false;
    }
    PartitionId partitionId4 = new MockPartitionId(4, MockClusterMap.DEFAULT_PARTITION_CLASS, Collections.singletonList((MockDataNodeId) dataNodeId), 0);
    Utils.newThread(() -> {
        // wait until at least one store has been collected (this ensures stats aggregation using old snapshot of map)
        try {
            getStatsCountdown2.await();
        } catch (InterruptedException e) {
            throw new IllegalStateException("CountDown await was interrupted", e);
        }
        testStatsManager.addReplica(partitionId4.getReplicaIds().get(0));
        testStoreMap.put(partitionId4, new MockStore(new MockStoreStats(hostAccountStorageStats.getStorageStats().get(0), false)));
        // count down to allow stats aggregation to proceed
        waitAddCountdown.countDown();
    }, false).start();
    publisher.run();
    statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    // verify that new added PartitionId4 is not in report for this round of aggregation
    assertFalse("Partition4 should not present in stats report", statsWrapper.getStats().getStorageStats().containsKey(partitionId4.getId()));
    // verify that new added PartitionId4 will be collected for next round of aggregation
    publisher.run();
    statsWrapper = accountStatsStore.queryHostAccountStorageStatsByHost("localhost", 0);
    assertTrue("Partition4 should present in stats report", statsWrapper.getStats().getStorageStats().containsKey(partitionId4.getId()));
}

Example 33 with Store

use of com.github.ambry.store.Store in project ambry by linkedin.

the class AmbryRequests method handleDeleteRequest.

public void handleDeleteRequest(Request request) throws IOException, InterruptedException {
    DeleteRequest deleteRequest = DeleteRequest.readFrom(new DataInputStream(request.getInputStream()), clusterMap);
    long requestQueueTime = SystemTime.getInstance().milliseconds() - request.getStartTimeInMs();
    long totalTimeSpent = requestQueueTime;
    metrics.deleteBlobRequestQueueTimeInMs.update(requestQueueTime);
    metrics.deleteBlobRequestRate.mark();
    long startTime = SystemTime.getInstance().milliseconds();
    DeleteResponse response = null;
    try {
        ServerErrorCode error = validateRequest(deleteRequest.getBlobId().getPartition(), RequestOrResponseType.DeleteRequest);
        if (error != ServerErrorCode.No_Error) {
            logger.error("Validating delete request failed with error {} for request {}", error, deleteRequest);
            response = new DeleteResponse(deleteRequest.getCorrelationId(), deleteRequest.getClientId(), error);
        } else {
            MessageFormatInputStream stream = new DeleteMessageFormatInputStream(deleteRequest.getBlobId(), deleteRequest.getAccountId(), deleteRequest.getContainerId(), deleteRequest.getDeletionTimeInMs());
            MessageInfo info = new MessageInfo(deleteRequest.getBlobId(), stream.getSize(), deleteRequest.getAccountId(), deleteRequest.getContainerId(), deleteRequest.getDeletionTimeInMs());
            ArrayList<MessageInfo> infoList = new ArrayList<MessageInfo>();
            infoList.add(info);
            MessageFormatWriteSet writeset = new MessageFormatWriteSet(stream, infoList, false);
            Store storeToDelete = storageManager.getStore(deleteRequest.getBlobId().getPartition());
            storeToDelete.delete(writeset);
            response = new DeleteResponse(deleteRequest.getCorrelationId(), deleteRequest.getClientId(), ServerErrorCode.No_Error);
            if (notification != null) {
                notification.onBlobReplicaDeleted(currentNode.getHostname(), currentNode.getPort(), deleteRequest.getBlobId().getID(), BlobReplicaSourceType.PRIMARY);
            }
        }
    } catch (StoreException e) {
        boolean logInErrorLevel = false;
        if (e.getErrorCode() == StoreErrorCodes.ID_Not_Found) {
            metrics.idNotFoundError.inc();
        } else if (e.getErrorCode() == StoreErrorCodes.TTL_Expired) {
            metrics.ttlExpiredError.inc();
        } else if (e.getErrorCode() == StoreErrorCodes.ID_Deleted) {
            metrics.idDeletedError.inc();
        } else if (e.getErrorCode() == StoreErrorCodes.Authorization_Failure) {
            metrics.deleteAuthorizationFailure.inc();
        } else {
            logInErrorLevel = true;
            metrics.unExpectedStoreDeleteError.inc();
        }
        if (logInErrorLevel) {
            logger.error("Store exception on a delete with error code {} for request {}", e.getErrorCode(), deleteRequest, e);
        } else {
            logger.trace("Store exception on a delete with error code {} for request {}", e.getErrorCode(), deleteRequest, e);
        }
        response = new DeleteResponse(deleteRequest.getCorrelationId(), deleteRequest.getClientId(), ErrorMapping.getStoreErrorMapping(e.getErrorCode()));
    } catch (Exception e) {
        logger.error("Unknown exception for delete request " + deleteRequest, e);
        response = new DeleteResponse(deleteRequest.getCorrelationId(), deleteRequest.getClientId(), ServerErrorCode.Unknown_Error);
        metrics.unExpectedStoreDeleteError.inc();
    } finally {
        long processingTime = SystemTime.getInstance().milliseconds() - startTime;
        totalTimeSpent += processingTime;
        publicAccessLogger.info("{} {} processingTime {}", deleteRequest, response, processingTime);
        metrics.deleteBlobProcessingTimeInMs.update(processingTime);
    }
    requestResponseChannel.sendResponse(response, request, new ServerNetworkResponseMetrics(metrics.deleteBlobResponseQueueTimeInMs, metrics.deleteBlobSendTimeInMs, metrics.deleteBlobTotalTimeInMs, null, null, totalTimeSpent));
}

Example 34 with Store

use of com.github.ambry.store.Store in project ambry by linkedin.

the class AmbryRequests method handlePutRequest.

public void handlePutRequest(Request request) throws IOException, InterruptedException {
    PutRequest.ReceivedPutRequest receivedRequest = PutRequest.readFrom(new DataInputStream(request.getInputStream()), clusterMap);
    long requestQueueTime = SystemTime.getInstance().milliseconds() - request.getStartTimeInMs();
    long totalTimeSpent = requestQueueTime;
    metrics.putBlobRequestQueueTimeInMs.update(requestQueueTime);
    metrics.putBlobRequestRate.mark();
    long startTime = SystemTime.getInstance().milliseconds();
    PutResponse response = null;
    try {
        ServerErrorCode error = validateRequest(receivedRequest.getBlobId().getPartition(), RequestOrResponseType.PutRequest);
        if (error != ServerErrorCode.No_Error) {
            logger.error("Validating put request failed with error {} for request {}", error, receivedRequest);
            response = new PutResponse(receivedRequest.getCorrelationId(), receivedRequest.getClientId(), error);
        } else {
            MessageFormatInputStream stream = new PutMessageFormatInputStream(receivedRequest.getBlobId(), receivedRequest.getBlobEncryptionKey(), receivedRequest.getBlobProperties(), receivedRequest.getUsermetadata(), receivedRequest.getBlobStream(), receivedRequest.getBlobSize(), receivedRequest.getBlobType());
            MessageInfo info = new MessageInfo(receivedRequest.getBlobId(), stream.getSize(), false, Utils.addSecondsToEpochTime(receivedRequest.getBlobProperties().getCreationTimeInMs(), receivedRequest.getBlobProperties().getTimeToLiveInSeconds()), receivedRequest.getCrc(), receivedRequest.getBlobProperties().getAccountId(), receivedRequest.getBlobProperties().getContainerId(), receivedRequest.getBlobProperties().getCreationTimeInMs());
            ArrayList<MessageInfo> infoList = new ArrayList<MessageInfo>();
            infoList.add(info);
            MessageFormatWriteSet writeset = new MessageFormatWriteSet(stream, infoList, false);
            Store storeToPut = storageManager.getStore(receivedRequest.getBlobId().getPartition());
            storeToPut.put(writeset);
            response = new PutResponse(receivedRequest.getCorrelationId(), receivedRequest.getClientId(), ServerErrorCode.No_Error);
            metrics.blobSizeInBytes.update(receivedRequest.getBlobSize());
            metrics.blobUserMetadataSizeInBytes.update(receivedRequest.getUsermetadata().limit());
            if (notification != null) {
                notification.onBlobReplicaCreated(currentNode.getHostname(), currentNode.getPort(), receivedRequest.getBlobId().getID(), BlobReplicaSourceType.PRIMARY);
            }
        }
    } catch (StoreException e) {
        logger.error("Store exception on a put with error code " + e.getErrorCode() + " for request " + receivedRequest, e);
        if (e.getErrorCode() == StoreErrorCodes.Already_Exist) {
            metrics.idAlreadyExistError.inc();
        } else if (e.getErrorCode() == StoreErrorCodes.IOError) {
            metrics.storeIOError.inc();
        } else {
            metrics.unExpectedStorePutError.inc();
        }
        response = new PutResponse(receivedRequest.getCorrelationId(), receivedRequest.getClientId(), ErrorMapping.getStoreErrorMapping(e.getErrorCode()));
    } catch (Exception e) {
        logger.error("Unknown exception on a put for request " + receivedRequest, e);
        response = new PutResponse(receivedRequest.getCorrelationId(), receivedRequest.getClientId(), ServerErrorCode.Unknown_Error);
    } finally {
        long processingTime = SystemTime.getInstance().milliseconds() - startTime;
        totalTimeSpent += processingTime;
        publicAccessLogger.info("{} {} processingTime {}", receivedRequest, response, processingTime);
        metrics.putBlobProcessingTimeInMs.update(processingTime);
        metrics.updatePutBlobProcessingTimeBySize(receivedRequest.getBlobSize(), processingTime);
    }
    sendPutResponse(requestResponseChannel, response, request, metrics.putBlobResponseQueueTimeInMs, metrics.putBlobSendTimeInMs, metrics.putBlobTotalTimeInMs, totalTimeSpent, receivedRequest.getBlobSize(), metrics);
}

Example 35 with Store

use of com.github.ambry.store.Store in project ambry by linkedin.

the class StatsManager method fetchSnapshot.

/**
 * Fetch the {@link StatsSnapshot} for the given {@link PartitionId}.
 * @param partitionId the {@link PartitionId} to try to fetch the {@link StatsSnapshot} from
 * @param unreachableStores a list of partitionIds to keep track of the unreachable stores (partitions)
 * @return
 */
StatsSnapshot fetchSnapshot(PartitionId partitionId, List<String> unreachableStores) {
    StatsSnapshot statsSnapshot = null;
    Store store = storageManager.getStore(partitionId);
    if (store == null) {
        unreachableStores.add(partitionId.toString());
    } else {
        try {
            statsSnapshot = store.getStoreStats().getStatsSnapshot(time.milliseconds());
        } catch (StoreException e) {
            logger.error("StoreException on fetching stats snapshot for store {}", store, e);
            unreachableStores.add(partitionId.toString());
        }
    }
    return statsSnapshot;
}