Exemplo n.º 1
0
  @Test
  /**
   * PS: Test will fail if for some reason we cannot do 50 ops/sec against a hash map. So yeah,
   * pretty unlikely.
   */
  public void testQuotaPctUsageCalculation() throws Exception {
    File tempDir = TestUtils.createTempDir();

    FileBackedCachingStorageEngine quotaStore =
        new FileBackedCachingStorageEngine("quota-usage-test-store", tempDir.getAbsolutePath());
    InMemoryStorageEngine<ByteArray, byte[], byte[]> inMemoryEngine =
        new InMemoryStorageEngine<ByteArray, byte[], byte[]>("inMemoryBackingStore");
    QuotaLimitStats quotaStats = new QuotaLimitStats(null, 1000);
    StatTrackingStore statTrackingStore = new StatTrackingStore(inMemoryEngine, null);

    QuotaLimitingStore quotaLimitingStore =
        new QuotaLimitingStore(
            statTrackingStore, statTrackingStore.getStats(), quotaStats, quotaStore);

    int targetRate = 50;
    // provide a quota of 100 gets/sec
    quotaStore.put(
        new ByteArray(
            QuotaUtils.makeQuotaKey(statTrackingStore.getName(), QuotaType.GET_THROUGHPUT)
                .getBytes()),
        new Versioned<byte[]>("100.0".getBytes()),
        null);

    long testIntervalMs = 5000;
    long timeToSleepMs = 1000 / targetRate;
    long startMs = System.currentTimeMillis();
    ByteArray key = new ByteArray("some key".getBytes());
    while ((System.currentTimeMillis() - startMs) <= testIntervalMs) {
      quotaLimitingStore.get(key, null);
      Thread.sleep(timeToSleepMs);
    }

    assertEquals("No get operations should be throttled", 0, quotaStats.getRateLimitedGets());
    assertEquals("Put usage should be 0", 0, quotaStats.getQuotaPctUsedPut());
    assertEquals("delete usage should be 0", 0, quotaStats.getQuotaPctUsedDelete());
    assertEquals("getall usage should be 0", 0, quotaStats.getQuotaPctUsedGetAll());

    assertEquals(
        "Computed usage pct must be close to actual observed qps",
        statTrackingStore.getStats().getThroughput(Tracked.GET),
        quotaStats.getQuotaPctUsedGet(),
        1.0);
  }
Exemplo n.º 2
0
  public void registerSystemEngine(StorageEngine<ByteArray, byte[], byte[]> engine) {

    Cluster cluster = this.metadata.getCluster();
    storeRepository.addStorageEngine(engine);

    /* Now add any store wrappers that are enabled */
    Store<ByteArray, byte[], byte[]> store = engine;

    if (voldemortConfig.isVerboseLoggingEnabled())
      store =
          new LoggingStore<ByteArray, byte[], byte[]>(
              store, cluster.getName(), SystemTime.INSTANCE);

    if (voldemortConfig.isMetadataCheckingEnabled())
      store = new InvalidMetadataCheckingStore(metadata.getNodeId(), store, metadata);

    if (voldemortConfig.isStatTrackingEnabled()) {
      StatTrackingStore statStore = new StatTrackingStore(store, this.storeStats);
      store = statStore;
      if (voldemortConfig.isJmxEnabled()) {

        MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
        ObjectName name = null;
        if (this.voldemortConfig.isEnableJmxClusterName())
          name =
              JmxUtils.createObjectName(
                  metadata.getCluster().getName() + "." + JmxUtils.getPackageName(store.getClass()),
                  store.getName());
        else
          name =
              JmxUtils.createObjectName(JmxUtils.getPackageName(store.getClass()), store.getName());

        synchronized (mbeanServer) {
          if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);

          JmxUtils.registerMbean(
              mbeanServer,
              JmxUtils.createModelMBean(new StoreStatsJmx(statStore.getStats())),
              name);
        }
      }
    }

    storeRepository.addLocalStore(store);
  }
Exemplo n.º 3
0
  @Override
  public <K, V, T> Store<K, V, T> getRawStore(
      String storeName, InconsistencyResolver<Versioned<V>> resolver) {

    Store<K, V, T> clientStore = null;

    // The lowest layer : Transporting request to coordinator
    R2Store r2store = null;
    this.d2Client = restClientFactoryConfig.getD2Client();
    if (this.d2Client == null) {
      r2store =
          new R2Store(
              storeName, this.config.getHttpBootstrapURL(), this.transportClient, this.config);
    } else {
      r2store =
          new R2Store(storeName, this.config.getHttpBootstrapURL(), this.d2Client, this.config);
    }

    this.rawStoreList.add(r2store);

    // bootstrap from the coordinator and obtain all the serialization
    // information.
    String serializerInfoXml = r2store.getSerializerInfoXml();
    SerializerDefinition keySerializerDefinition =
        RestUtils.parseKeySerializerDefinition(serializerInfoXml);
    SerializerDefinition valueSerializerDefinition =
        RestUtils.parseValueSerializerDefinition(serializerInfoXml);

    synchronized (this) {
      keySerializerMap.put(storeName, keySerializerDefinition);
      valueSerializerMap.put(storeName, valueSerializerDefinition);
    }

    if (logger.isDebugEnabled()) {
      logger.debug(
          "Bootstrapping for " + storeName + ": Key serializer " + keySerializerDefinition);
      logger.debug(
          "Bootstrapping for " + storeName + ": Value serializer " + valueSerializerDefinition);
    }

    // Start building the stack..
    // First, the transport layer
    Store<ByteArray, byte[], byte[]> store = r2store;

    // TODO: Add jmxId / some unique identifier to the Mbean name
    if (this.config.isEnableJmx()) {
      StatTrackingStore statStore = new StatTrackingStore(store, this.stats);
      store = statStore;
      JmxUtils.registerMbean(
          new StoreStatsJmx(statStore.getStats()),
          JmxUtils.createObjectName(JmxUtils.getPackageName(store.getClass()), store.getName()));
    }

    // Add compression layer
    if (keySerializerDefinition.hasCompression() || valueSerializerDefinition.hasCompression()) {
      store =
          new CompressingStore(
              store,
              new CompressionStrategyFactory().get(keySerializerDefinition.getCompression()),
              new CompressionStrategyFactory().get(valueSerializerDefinition.getCompression()));
    }

    // Add Serialization layer
    Serializer<K> keySerializer =
        (Serializer<K>) serializerFactory.getSerializer(keySerializerDefinition);
    Serializer<V> valueSerializer =
        (Serializer<V>) serializerFactory.getSerializer(valueSerializerDefinition);
    clientStore = SerializingStore.wrap(store, keySerializer, valueSerializer, null);

    // Add inconsistency Resolving layer
    InconsistencyResolver<Versioned<V>> secondaryResolver =
        resolver == null ? new TimeBasedInconsistencyResolver<V>() : resolver;
    clientStore =
        new InconsistencyResolvingStore<K, V, T>(
            clientStore,
            new ChainedResolver<Versioned<V>>(
                new VectorClockInconsistencyResolver<V>(), secondaryResolver));
    return clientStore;
  }
Exemplo n.º 4
0
  /**
   * Register the given engine with the storage repository
   *
   * @param engine Register the storage engine
   * @param isReadOnly Boolean indicating if this store is read-only
   * @param storeType The type of the store
   * @param storeDef store definition for the store to be registered
   */
  public void registerEngine(
      StorageEngine<ByteArray, byte[], byte[]> engine,
      boolean isReadOnly,
      String storeType,
      StoreDefinition storeDef) {
    Cluster cluster = this.metadata.getCluster();
    storeRepository.addStorageEngine(engine);

    /* Now add any store wrappers that are enabled */
    Store<ByteArray, byte[], byte[]> store = engine;

    boolean isMetadata = store.getName().compareTo(MetadataStore.METADATA_STORE_NAME) == 0;
    boolean isSlop = storeType.compareTo("slop") == 0;
    boolean isView = storeType.compareTo(ViewStorageConfiguration.TYPE_NAME) == 0;

    if (voldemortConfig.isVerboseLoggingEnabled())
      store =
          new LoggingStore<ByteArray, byte[], byte[]>(
              store, cluster.getName(), SystemTime.INSTANCE);
    if (!isSlop) {
      if (!isReadOnly && !isMetadata && !isView) {
        // wrap store to enforce retention policy
        if (voldemortConfig.isEnforceRetentionPolicyOnRead() && storeDef != null) {
          RetentionEnforcingStore retentionEnforcingStore =
              new RetentionEnforcingStore(
                  store,
                  storeDef,
                  voldemortConfig.isDeleteExpiredValuesOnRead(),
                  SystemTime.INSTANCE);
          metadata.addMetadataStoreListener(store.getName(), retentionEnforcingStore);
          store = retentionEnforcingStore;
        }

        if (voldemortConfig.isEnableRebalanceService()) {
          ProxyPutStats proxyPutStats = new ProxyPutStats(aggregatedProxyPutStats);
          if (voldemortConfig.isJmxEnabled()) {
            JmxUtils.registerMbean(
                proxyPutStats,
                JmxUtils.createObjectName(
                    "voldemort.store.rebalancing", engine.getName() + "-proxy-puts"));
          }
          store =
              new RedirectingStore(
                  store,
                  metadata,
                  storeRepository,
                  failureDetector,
                  storeFactory,
                  proxyPutWorkerPool,
                  proxyPutStats);
          if (voldemortConfig.isJmxEnabled()) {
            MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
            ObjectName name = null;
            if (this.voldemortConfig.isEnableJmxClusterName())
              name =
                  JmxUtils.createObjectName(
                      cluster.getName() + "." + JmxUtils.getPackageName(RedirectingStore.class),
                      store.getName());
            else
              name =
                  JmxUtils.createObjectName(
                      JmxUtils.getPackageName(RedirectingStore.class), store.getName());

            synchronized (mbeanServer) {
              if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);

              JmxUtils.registerMbean(mbeanServer, JmxUtils.createModelMBean(store), name);
            }
          }
        }
      }

      if (voldemortConfig.isMetadataCheckingEnabled() && !isMetadata) {
        store = new InvalidMetadataCheckingStore(metadata.getNodeId(), store, metadata);
      }
    }

    if (voldemortConfig.isStatTrackingEnabled()) {
      StatTrackingStore statStore = new StatTrackingStore(store, this.storeStats);
      store = statStore;
      if (voldemortConfig.isJmxEnabled()) {

        MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
        ObjectName name = null;
        if (this.voldemortConfig.isEnableJmxClusterName())
          name =
              JmxUtils.createObjectName(
                  metadata.getCluster().getName() + "." + JmxUtils.getPackageName(store.getClass()),
                  store.getName());
        else
          name =
              JmxUtils.createObjectName(JmxUtils.getPackageName(store.getClass()), store.getName());

        synchronized (mbeanServer) {
          if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);

          JmxUtils.registerMbean(
              mbeanServer,
              JmxUtils.createModelMBean(new StoreStatsJmx(statStore.getStats())),
              name);
        }
      }

      // Wrap everything under the rate limiting store (barring the
      // metadata store)
      if (voldemortConfig.isEnableQuotaLimiting() && !isMetadata) {
        FileBackedCachingStorageEngine quotaStore =
            (FileBackedCachingStorageEngine)
                storeRepository.getStorageEngine(
                    SystemStoreConstants.SystemStoreName.voldsys$_store_quotas.toString());
        QuotaLimitStats quotaStats = new QuotaLimitStats(this.aggregatedQuotaStats);
        QuotaLimitingStore rateLimitingStore =
            new QuotaLimitingStore(store, this.storeStats, quotaStats, quotaStore);
        if (voldemortConfig.isJmxEnabled()) {
          JmxUtils.registerMbean(
              this.aggregatedQuotaStats,
              JmxUtils.createObjectName(
                  "voldemort.store.quota", store.getName() + "-quota-limit-stats"));
        }
        store = rateLimitingStore;
      }
    }

    storeRepository.addLocalStore(store);
  }
Exemplo n.º 5
0
  protected void outputJSON(HttpServletResponse response) {
    StringBuilder sb = new StringBuilder("{\n");

    sb.append("  \"servertime\": \"");
    sb.append(new Date());
    sb.append("\",");

    sb.append("\n  \"server\": \"");
    sb.append(myMachine);
    sb.append("\",");

    sb.append("\n  \"node\": \"");
    sb.append(server.getMetadataStore().getNodeId());
    sb.append("\",");

    sb.append("\n  \"uptime\": \"");
    sb.append(abstractSocketService.getStatusManager().getFormattedUptime());
    sb.append("\",");

    sb.append("\n  \"num_workers\": ");
    sb.append(abstractSocketService.getStatusManager().getActiveWorkersCount());
    sb.append(",");

    sb.append("\n  \"pool_size\": ");
    sb.append(abstractSocketService.getStatusManager().getWorkerPoolSize());
    sb.append(",");

    sb.append("\n  \"stores\": {");

    int i = 0;
    for (Store<ByteArray, byte[], byte[]> store : server.getStoreRepository().getAllLocalStores()) {

      if (i++ > 0) {
        sb.append(",");
      }
      sb.append("\n    \"");
      sb.append(store.getName());
      sb.append("\" : {\n");

      if (store instanceof StatTrackingStore) {
        StatTrackingStore statStore = (StatTrackingStore) store;
        Map<Tracked, RequestCounter> stats = statStore.getStats().getCounters();
        for (Tracked t : Tracked.values()) {
          if (t == Tracked.EXCEPTION) {
            continue;
          }
          sb.append(fillCommonStats(stats, t));
        }
        sb.append(",\n        \"num_exceptions\": ");
        sb.append(statStore.getStats().getCount(Tracked.EXCEPTION));
        sb.append("\n");
        sb.append("    }");
      }

      if (store instanceof QuotaLimitingStore) {
        QuotaLimitingStore quotaStore = (QuotaLimitingStore) store;
        Map<Tracked, RequestCounter> stats = quotaStore.getStats().getCounters();
        for (Tracked t : Tracked.values()) {
          if (t == Tracked.EXCEPTION) {
            continue;
          }
          sb.append(fillCommonStats(stats, t));
        }
        sb.append(",\n        \"num_exceptions\": ");
        sb.append(quotaStore.getStats().getCount(Tracked.EXCEPTION));
        sb.append("\n");
        sb.append("    }");
      }
    }

    sb.append("\n  }\n");
    sb.append("}\n");

    try {
      response.setContentType("text/plain");
      OutputStreamWriter writer = new OutputStreamWriter(response.getOutputStream());
      writer.write(sb.toString());
      writer.flush();
    } catch (Exception e) {
      throw new VoldemortException(e);
    }
  }