Examples with JmxOperation voldemort.annotations.jmx.JmxOperation used on opensource projects

Example 1 with JmxOperation

use of voldemort.annotations.jmx.JmxOperation in project voldemort by voldemort.

the class ReadOnlyStorageEngine method swapFiles.

/**
     * Swap the current version folder for a new one
     * 
     * @param newStoreDirectory The path to the new version directory
     */
@JmxOperation(description = "swapFiles changes this store to use the new data directory")
public void swapFiles(String newStoreDirectory) {
    logger.info("Swapping files for store '" + getName() + "' to " + newStoreDirectory);
    File newVersionDir = new File(newStoreDirectory);
    if (!newVersionDir.exists())
        throw new VoldemortException("File " + newVersionDir.getAbsolutePath() + " does not exist.");
    if (!(newVersionDir.getParentFile().compareTo(storeDir.getAbsoluteFile()) == 0 && ReadOnlyUtils.checkVersionDirName(newVersionDir)))
        throw new VoldemortException("Invalid version folder name '" + newVersionDir + "'. Either parent directory is incorrect or format(version-n) is incorrect");
    // retrieve previous version for (a) check if last write is winning
    // (b) if failure, rollback use
    File previousVersionDir = ReadOnlyUtils.getCurrentVersion(storeDir);
    if (previousVersionDir == null)
        throw new VoldemortException("Could not find any latest directory to swap with in store '" + getName() + "'");
    long newVersionId = ReadOnlyUtils.getVersionId(newVersionDir);
    long previousVersionId = ReadOnlyUtils.getVersionId(previousVersionDir);
    if (newVersionId == -1 || previousVersionId == -1)
        throw new VoldemortException("Unable to parse folder names (" + newVersionDir.getName() + "," + previousVersionDir.getName() + ") since format(version-n) is incorrect");
    // check if we're greater than latest since we want last write to win
    if (previousVersionId > newVersionId) {
        logger.info("No swap required since current latest version " + previousVersionId + " is greater than swap version " + newVersionId);
        deleteBackups();
        return;
    }
    logger.info("Acquiring write lock on '" + getName() + "':");
    fileModificationLock.writeLock().lock();
    boolean success = false;
    try {
        close();
        logger.info("Opening primary files for store '" + getName() + "' at " + newStoreDirectory);
        // open the latest store
        open(newVersionDir);
        success = true;
    } finally {
        try {
            // we failed to do the swap, attempt a rollback to last version
            if (!success)
                rollback(previousVersionDir);
        } finally {
            fileModificationLock.writeLock().unlock();
            if (success)
                logger.info("Swap operation completed successfully on store " + getName() + ", releasing lock.");
            else
                logger.error("Swap operation failed.");
        }
    }
    // okay we have released the lock and the store is now open again, it is
    // safe to do a potentially slow delete if we have one too many backups
    deleteBackups();
}

Example 2 with JmxOperation

use of voldemort.annotations.jmx.JmxOperation in project voldemort by voldemort.

the class StorageService method forceCleanupOldData.

@JmxOperation(description = "Force cleanup of old data based on retention policy, allows override of throttle-rate", impact = MBeanOperationInfo.ACTION)
public void forceCleanupOldData(String storeName) {
    StoreDefinition storeDef = getMetadataStore().getStoreDef(storeName);
    int throttleRate = storeDef.hasRetentionScanThrottleRate() ? storeDef.getRetentionScanThrottleRate() : Integer.MAX_VALUE;
    forceCleanupOldDataThrottled(storeName, throttleRate);
}

Example 3 with JmxOperation

use of voldemort.annotations.jmx.JmxOperation in project voldemort by voldemort.

the class StorageService method forceCleanupOldDataThrottled.

@JmxOperation(description = "Force cleanup of old data based on retention policy.", impact = MBeanOperationInfo.ACTION)
public void forceCleanupOldDataThrottled(String storeName, int entryScanThrottleRate) {
    logger.info("forceCleanupOldData() called for store " + storeName + " with retention scan throttle rate:" + entryScanThrottleRate + " Entries/second.");
    try {
        StoreDefinition storeDef = getMetadataStore().getStoreDef(storeName);
        StorageEngine<ByteArray, byte[], byte[]> engine = storeRepository.getStorageEngine(storeName);
        if (null != engine) {
            if (storeDef.hasRetentionPeriod()) {
                ExecutorService executor = Executors.newFixedThreadPool(1);
                try {
                    if (scanPermitWrapper.availablePermits() >= 1) {
                        executor.execute(new DataCleanupJob<ByteArray, byte[], byte[]>(engine, scanPermitWrapper, storeName, SystemTime.INSTANCE, metadata));
                    } else {
                        logger.error("forceCleanupOldData() No permit available to run cleanJob already running multiple instance." + engine.getName());
                    }
                } finally {
                    executor.shutdown();
                }
            } else {
                logger.error("forceCleanupOldData() No retention policy found for " + storeName);
            }
        }
    } catch (Exception e) {
        logger.error("Error while running forceCleanupOldData()", e);
        throw new VoldemortException(e);
    }
}

Example 4 with JmxOperation

use of voldemort.annotations.jmx.JmxOperation in project voldemort by voldemort.

the class BdbStorageConfiguration method checkPointAllEnvironments.

/**
     * Forceful checkpointing
     */
@JmxOperation(description = "Forcefully checkpoint all the environments")
public void checkPointAllEnvironments() {
    synchronized (lock) {
        try {
            for (Environment environment : environments.values()) {
                CheckpointConfig checkPointConfig = new CheckpointConfig();
                checkPointConfig.setForce(true);
                environment.checkpoint(checkPointConfig);
            }
        } catch (DatabaseException e) {
            throw new VoldemortException(e);
        }
    }
}

Example 5 with JmxOperation

use of voldemort.annotations.jmx.JmxOperation in project voldemort by voldemort.

the class JmxUtils method extractOperationInfo.

/**
     * Extract all operations and attributes from the given object that have
     * been annotated with the Jmx annotation. Operations are all methods that
     * are marked with the JmxOperation annotation.
     * 
     * @param object The object to process
     * @return An array of operations taken from the object
     */
public static ModelMBeanOperationInfo[] extractOperationInfo(Object object) {
    ArrayList<ModelMBeanOperationInfo> infos = new ArrayList<ModelMBeanOperationInfo>();
    for (Method m : object.getClass().getMethods()) {
        JmxOperation jmxOperation = m.getAnnotation(JmxOperation.class);
        JmxGetter jmxGetter = m.getAnnotation(JmxGetter.class);
        JmxSetter jmxSetter = m.getAnnotation(JmxSetter.class);
        if (jmxOperation != null || jmxGetter != null || jmxSetter != null) {
            String description = "";
            int visibility = 1;
            int impact = MBeanOperationInfo.UNKNOWN;
            if (jmxOperation != null) {
                description = jmxOperation.description();
                impact = jmxOperation.impact();
            } else if (jmxGetter != null) {
                description = jmxGetter.description();
                impact = MBeanOperationInfo.INFO;
                visibility = 4;
            } else if (jmxSetter != null) {
                description = jmxSetter.description();
                impact = MBeanOperationInfo.ACTION;
                visibility = 4;
            }
            ModelMBeanOperationInfo info = new ModelMBeanOperationInfo(m.getName(), description, extractParameterInfo(m), m.getReturnType().getName(), impact);
            info.getDescriptor().setField("visibility", Integer.toString(visibility));
            infos.add(info);
        }
    }
    return infos.toArray(new ModelMBeanOperationInfo[infos.size()]);
}