Examples with StoreVersionManager voldemort.store.readonly.StoreVersionManager used on opensource projects

Example 1 with StoreVersionManager

use of voldemort.store.readonly.StoreVersionManager in project voldemort by voldemort.

the class AdminServiceRequestHandler method handleDisableStoreVersion.

private Message handleDisableStoreVersion(VAdminProto.DisableStoreVersionRequest disableStoreVersion) {
    String storeName = disableStoreVersion.getStoreName();
    Long version = disableStoreVersion.getPushVersion();
    Properties properties = new Properties();
    try {
        properties.load(new StringReader(disableStoreVersion.getInfo()));
    } catch (IOException e) {
        logger.error("Got IOException while trying to decipher a DisableStoreVersionRequest's info.", e);
    }
    logger.info("Received DisableStoreVersionRequest:\n" + "\tstore_name: " + storeName + "\n" + "\tpush_version: " + version + "\n" + "\tinfo: " + properties.toString());
    VAdminProto.DisableStoreVersionResponse.Builder response = VAdminProto.DisableStoreVersionResponse.newBuilder();
    response.setNodeId(server.getMetadataStore().getNodeId());
    final String logMessagePrefix = "handleDisableStoreVersion returning response: ";
    try {
        StorageEngine storeToDisable = storeRepository.getStorageEngine(storeName);
        if (storeToDisable == null) {
            response.setDisableSuccess(false).setInfo("The store '" + storeName + "' does not exist!");
        } else {
            StoreVersionManager storeVersionManager = (StoreVersionManager) storeToDisable.getCapability(StoreCapabilityType.DISABLE_STORE_VERSION);
            storeVersionManager.disableStoreVersion(version);
            response.setDisableSuccess(true).setDisablePersistenceSuccess(true).setInfo("The store '" + storeName + "' version " + version + " was successfully disabled.");
        }
        logger.info(logMessagePrefix + response.getInfo());
    } catch (PersistenceFailureException e) {
        String message = "The store '" + storeName + "' version " + version + " was disabled" + " but the change could not be persisted and will thus remain in effect only" + " until the next server restart. This is likely caused by the IO subsystem" + " becoming read-only.";
        logger.error(logMessagePrefix + message, e);
        response.setDisableSuccess(true).setDisablePersistenceSuccess(false).setInfo(message);
    } catch (NoSuchCapabilityException e) {
        String message = "The store '" + storeName + "' does not support disabling versions!";
        logger.error(logMessagePrefix + message, e);
        response.setDisableSuccess(false).setInfo(message);
    } catch (Exception e) {
        String message = "The store '" + storeName + "' version " + version + " was not disabled because of an unexpected exception.";
        logger.error(logMessagePrefix + message, e);
        response.setDisableSuccess(false).setInfo(message);
    }
    if (response.getDisableSuccess()) {
        // Then we also want to put the server in offline mode
        VAdminProto.SetOfflineStateRequest offlineStateRequest = VAdminProto.SetOfflineStateRequest.newBuilder().setOfflineMode(true).build();
        handleSetOfflineState(offlineStateRequest);
    }
    return response.build();
}

Example 2 with StoreVersionManager

use of voldemort.store.readonly.StoreVersionManager in project voldemort by voldemort.

the class VoldemortServer method validateReadOnlyStoreStatusBeforeGoingOnline.

private ReadOnlyStoreStatusValidation validateReadOnlyStoreStatusBeforeGoingOnline() {
    List<StorageEngine<ByteArray, byte[], byte[]>> storageEngines = storageService.getStoreRepository().getStorageEnginesByClass(ReadOnlyStorageEngine.class);
    if (storageEngines.isEmpty()) {
        logger.debug("There are no Read-Only stores on this node.");
        return new ReadOnlyStoreStatusValidation(true, null);
    } else {
        List<String> storesWithDisabledVersions = Lists.newArrayList();
        for (StorageEngine storageEngine : storageEngines) {
            StoreVersionManager storeVersionManager = (StoreVersionManager) storageEngine.getCapability(StoreCapabilityType.DISABLE_STORE_VERSION);
            if (storeVersionManager.hasAnyDisabledVersion()) {
                storesWithDisabledVersions.add(storageEngine.getName());
            }
        }
        if (storesWithDisabledVersions.isEmpty()) {
            if (voldemortConfig.getHighAvailabilityStateAutoCleanUp()) {
                logger.info(VoldemortConfig.PUSH_HA_STATE_AUTO_CLEANUP + "=true, so the server will attempt to delete the HA state for this node, if any.");
                FailedFetchLock failedFetchLock = null;
                try {
                    failedFetchLock = FailedFetchLock.getLock(getVoldemortConfig(), new Props());
                    failedFetchLock.removeObsoleteStateForNode(getVoldemortConfig().getNodeId());
                    logger.info("Successfully ensured that the BnP HA shared state is cleared for this node.");
                } catch (ClassNotFoundException e) {
                    return new ReadOnlyStoreStatusValidation(true, new VoldemortException("Failed to find FailedFetchLock class!", e));
                } catch (Exception e) {
                    return new ReadOnlyStoreStatusValidation(true, new VoldemortException("Exception while trying to remove obsolete HA state!", e));
                } finally {
                    IOUtils.closeQuietly(failedFetchLock);
                }
            } else {
                logger.info(VoldemortConfig.PUSH_HA_STATE_AUTO_CLEANUP + "=false, so the server will NOT attempt to delete the HA state for this node, if any.");
            }
            logger.info("No Read-Only stores are disabled. Going online as planned.");
            return new ReadOnlyStoreStatusValidation(true, null);
        } else {
            // OMG, there are disabled stores!
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.append("Cannot go online, because the following Read-Only stores have some disabled version(s): ");
            boolean firstItem = true;
            for (String storeName : storesWithDisabledVersions) {
                if (firstItem) {
                    firstItem = false;
                } else {
                    stringBuilder.append(", ");
                }
                stringBuilder.append(storeName);
            }
            return new ReadOnlyStoreStatusValidation(false, new VoldemortException(stringBuilder.toString()));
        }
    }
}

Example 3 with StoreVersionManager

use of voldemort.store.readonly.StoreVersionManager in project voldemort by voldemort.

the class StorageService method startInner.

@Override
protected void startInner() {
    registerInternalEngine(metadata, false, "metadata");
    /* Initialize storage configurations */
    for (String configClassName : voldemortConfig.getStorageConfigurations()) initStorageConfig(configClassName);
    /* Initialize view storage configuration */
    storageConfigs.put(ViewStorageConfiguration.TYPE_NAME, new ViewStorageConfiguration(voldemortConfig, metadata.getStoreDefList(), storeRepository));
    /* Initialize system stores */
    initSystemStores();
    /* Register slop store */
    if (voldemortConfig.isSlopEnabled()) {
        logger.info("Initializing the slop store using " + voldemortConfig.getSlopStoreType());
        StorageConfiguration config = storageConfigs.get(voldemortConfig.getSlopStoreType());
        if (config == null)
            throw new ConfigurationException("Attempt to open store " + SlopStorageEngine.SLOP_STORE_NAME + " but " + voldemortConfig.getSlopStoreType() + " storage engine has not been enabled.");
        // make a dummy store definition object
        StoreDefinition slopStoreDefinition = new StoreDefinition(SlopStorageEngine.SLOP_STORE_NAME, null, null, null, null, null, null, RoutingStrategyType.CONSISTENT_STRATEGY, 0, null, 0, null, 0, null, null, null, null, null, null, null, null, null, null, null, null, 0);
        SlopStorageEngine slopEngine = new SlopStorageEngine(config.getStore(slopStoreDefinition, new RoutingStrategyFactory().updateRoutingStrategy(slopStoreDefinition, metadata.getCluster())), metadata.getCluster());
        registerInternalEngine(slopEngine, false, "slop");
        storeRepository.setSlopStore(slopEngine);
        if (voldemortConfig.isSlopPusherJobEnabled()) {
            // Now initialize the pusher job after some time
            GregorianCalendar cal = new GregorianCalendar();
            cal.add(Calendar.SECOND, (int) (voldemortConfig.getSlopFrequencyMs() / Time.MS_PER_SECOND));
            Date nextRun = cal.getTime();
            logger.info("Initializing slop pusher job type " + voldemortConfig.getPusherType() + " at " + nextRun);
            scheduler.schedule("slop", (voldemortConfig.getPusherType().compareTo(BlockingSlopPusherJob.TYPE_NAME) == 0) ? new BlockingSlopPusherJob(storeRepository, metadata, failureDetector, voldemortConfig, scanPermitWrapper) : new StreamingSlopPusherJob(storeRepository, metadata, slopStreamingFailureDetector, voldemortConfig, scanPermitWrapper), nextRun, voldemortConfig.getSlopFrequencyMs());
        }
        // Create a SlopPurgeJob object and register it
        if (voldemortConfig.isSlopPurgeJobEnabled()) {
            logger.info("Initializing Slop Purge job");
            SlopPurgeJob job = new SlopPurgeJob(storeRepository, metadata, scanPermitWrapper, voldemortConfig.getSlopPurgeJobMaxKeysScannedPerSec());
            JmxUtils.registerMbean(job, JmxUtils.createObjectName(job.getClass()));
            storeRepository.registerSlopPurgeJob(job);
        }
    }
    // Create a repair job object and register it with Store repository
    if (voldemortConfig.isRepairEnabled()) {
        logger.info("Initializing repair job.");
        RepairJob job = new RepairJob(storeRepository, metadata, scanPermitWrapper, voldemortConfig.getRepairJobMaxKeysScannedPerSec());
        JmxUtils.registerMbean(job, JmxUtils.createObjectName(job.getClass()));
        storeRepository.registerRepairJob(job);
    }
    // Create a prune job object and register it
    if (voldemortConfig.isPruneJobEnabled()) {
        logger.info("Intializing prune job");
        VersionedPutPruneJob job = new VersionedPutPruneJob(storeRepository, metadata, scanPermitWrapper, voldemortConfig.getPruneJobMaxKeysScannedPerSec());
        JmxUtils.registerMbean(job, JmxUtils.createObjectName(job.getClass()));
        storeRepository.registerPruneJob(job);
    }
    List<StoreDefinition> storeDefs = new ArrayList<StoreDefinition>(this.metadata.getStoreDefList());
    logger.info("Initializing stores:");
    logger.info("Validating schemas:");
    StoreDefinitionUtils.validateSchemasAsNeeded(storeDefs);
    // first initialize non-view stores
    for (StoreDefinition def : storeDefs) if (!def.isView())
        openStore(def);
    // those stores
    for (StoreDefinition def : storeDefs) {
        if (def.isView())
            openStore(def);
    }
    initializeMetadataVersions(storeDefs);
    // enable aggregate jmx statistics
    if (voldemortConfig.isStatTrackingEnabled())
        if (this.voldemortConfig.isEnableJmxClusterName())
            JmxUtils.registerMbean(new StoreStatsJmx(this.storeStats), JmxUtils.createObjectName(metadata.getCluster().getName() + ".voldemort.store.stats.aggregate", "aggregate-perf"));
        else
            JmxUtils.registerMbean(new StoreStatsJmx(this.storeStats), JmxUtils.createObjectName("voldemort.store.stats.aggregate", "aggregate-perf"));
    List<StorageEngine> listOfDisabledStores = Lists.newArrayList();
    for (StorageEngine storageEngine : storeRepository.getAllStorageEngines()) {
        try {
            StoreVersionManager storeVersionManager = (StoreVersionManager) storageEngine.getCapability(StoreCapabilityType.DISABLE_STORE_VERSION);
            if (storeVersionManager.hasAnyDisabledVersion()) {
                listOfDisabledStores.add(storageEngine);
                logger.warn("The following store is marked as disabled: " + storageEngine.getName());
            // Must put server in offline mode.
            }
        } catch (NoSuchCapabilityException e) {
        // Not a read-only store: no-op
        }
    }
    if (listOfDisabledStores.isEmpty()) {
        logger.info("All stores initialized.");
    } else {
        throw new DisabledStoreException("All stores initialized, but the server needs to go " + "in offline mode because some store(s) are disabled.");
    }
}