Exemplo n.º 1
0
  private StateBackend<?> createStateBackend() throws Exception {
    StateBackend<?> configuredBackend = configuration.getStateBackend(userClassLoader);

    if (configuredBackend != null) {
      // backend has been configured on the environment
      LOG.info("Using user-defined state backend: " + configuredBackend);
      return configuredBackend;
    } else {
      // see if we have a backend specified in the configuration
      Configuration flinkConfig = getEnvironment().getTaskManagerInfo().getConfiguration();
      String backendName = flinkConfig.getString(ConfigConstants.STATE_BACKEND, null);

      if (backendName == null) {
        LOG.warn(
            "No state backend has been specified, using default state backend (Memory / JobManager)");
        backendName = "jobmanager";
      }

      backendName = backendName.toLowerCase();
      switch (backendName) {
        case "jobmanager":
          LOG.info("State backend is set to heap memory (checkpoint to jobmanager)");
          return MemoryStateBackend.defaultInstance();

        case "filesystem":
          FsStateBackend backend = new FsStateBackendFactory().createFromConfig(flinkConfig);
          LOG.info(
              "State backend is set to heap memory (checkpoints to filesystem \""
                  + backend.getBasePath()
                  + "\")");
          return backend;

        default:
          try {
            @SuppressWarnings("rawtypes")
            Class<? extends StateBackendFactory> clazz =
                Class.forName(backendName, false, userClassLoader)
                    .asSubclass(StateBackendFactory.class);

            return clazz.newInstance().createFromConfig(flinkConfig);
          } catch (ClassNotFoundException e) {
            throw new IllegalConfigurationException(
                "Cannot find configured state backend: " + backendName);
          } catch (ClassCastException e) {
            throw new IllegalConfigurationException(
                "The class configured under '"
                    + ConfigConstants.STATE_BACKEND
                    + "' is not a valid state backend factory ("
                    + backendName
                    + ')');
          } catch (Throwable t) {
            throw new IllegalConfigurationException("Cannot create configured state backend", t);
          }
      }
    }
  }
Exemplo n.º 2
0
  static Configuration createReporterConfig(Configuration config, TimeUnit timeunit, long period) {
    Configuration reporterConfig = new Configuration();
    reporterConfig.setLong("period", period);
    reporterConfig.setString("timeunit", timeunit.name());

    String[] arguments = config.getString(KEY_METRICS_REPORTER_ARGUMENTS, "").split(" ");
    if (arguments.length > 1) {
      for (int x = 0; x < arguments.length; x += 2) {
        reporterConfig.setString(arguments[x].replace("--", ""), arguments[x + 1]);
      }
    }
    return reporterConfig;
  }
Exemplo n.º 3
0
 private static JMXReporter startJmxReporter(Configuration config) {
   JMXReporter reporter = null;
   try {
     Configuration reporterConfig = new Configuration();
     String portRange = config.getString(KEY_METRICS_JMX_PORT, null);
     if (portRange != null) {
       reporterConfig.setString(KEY_METRICS_JMX_PORT, portRange);
     }
     reporter = new JMXReporter();
     reporter.open(reporterConfig);
   } catch (Exception e) {
     LOG.error("Failed to instantiate JMX reporter.", e);
   } finally {
     return reporter;
   }
 }
Exemplo n.º 4
0
  @Override
  public void setInput(
      Map<Operator<?>, OptimizerNode> contractToNode, ExecutionMode defaultExchangeMode)
      throws CompilerException {
    // see if an internal hint dictates the strategy to use
    final Configuration conf = getOperator().getParameters();
    final String shipStrategy = conf.getString(Optimizer.HINT_SHIP_STRATEGY, null);
    final ShipStrategyType preSet;

    if (shipStrategy != null) {
      if (shipStrategy.equalsIgnoreCase(Optimizer.HINT_SHIP_STRATEGY_REPARTITION_HASH)) {
        preSet = ShipStrategyType.PARTITION_HASH;
      } else if (shipStrategy.equalsIgnoreCase(Optimizer.HINT_SHIP_STRATEGY_REPARTITION_RANGE)) {
        preSet = ShipStrategyType.PARTITION_RANGE;
      } else if (shipStrategy.equalsIgnoreCase(Optimizer.HINT_SHIP_STRATEGY_FORWARD)) {
        preSet = ShipStrategyType.FORWARD;
      } else if (shipStrategy.equalsIgnoreCase(Optimizer.HINT_SHIP_STRATEGY_REPARTITION)) {
        preSet = ShipStrategyType.PARTITION_RANDOM;
      } else {
        throw new CompilerException("Unrecognized ship strategy hint: " + shipStrategy);
      }
    } else {
      preSet = null;
    }

    // get the predecessor node
    Operator<?> children = ((SingleInputOperator<?, ?, ?>) getOperator()).getInput();

    OptimizerNode pred;
    DagConnection conn;
    if (children == null) {
      throw new CompilerException(
          "Error: Node for '" + getOperator().getName() + "' has no input.");
    } else {
      pred = contractToNode.get(children);
      conn = new DagConnection(pred, this, defaultExchangeMode);
      if (preSet != null) {
        conn.setShipStrategy(preSet);
      }
    }

    // create the connection and add it
    setIncomingConnection(conn);
    pred.addOutgoingConnection(conn);
  }
Exemplo n.º 5
0
  static ScopeFormats createScopeConfig(Configuration config) {
    String jmFormat =
        config.getString(KEY_METRICS_SCOPE_NAMING_JM, ScopeFormat.DEFAULT_SCOPE_JOBMANAGER_GROUP);
    String jmJobFormat =
        config.getString(
            KEY_METRICS_SCOPE_NAMING_JM_JOB, ScopeFormat.DEFAULT_SCOPE_JOBMANAGER_JOB_GROUP);
    String tmFormat =
        config.getString(KEY_METRICS_SCOPE_NAMING_TM, ScopeFormat.DEFAULT_SCOPE_TASKMANAGER_GROUP);
    String tmJobFormat =
        config.getString(
            KEY_METRICS_SCOPE_NAMING_TM_JOB, ScopeFormat.DEFAULT_SCOPE_TASKMANAGER_JOB_GROUP);
    String taskFormat =
        config.getString(KEY_METRICS_SCOPE_NAMING_TASK, ScopeFormat.DEFAULT_SCOPE_TASK_GROUP);
    String operatorFormat =
        config.getString(
            KEY_METRICS_SCOPE_NAMING_OPERATOR, ScopeFormat.DEFAULT_SCOPE_OPERATOR_GROUP);

    return new ScopeFormats(
        jmFormat, jmJobFormat, tmFormat, tmJobFormat, taskFormat, operatorFormat);
  }
Exemplo n.º 6
0
  /** Creates a new MetricRegistry and starts the configured reporter. */
  public MetricRegistry(Configuration config) {
    // first parse the scopeName formats, these are needed for all reporters
    ScopeFormats scopeFormats;
    try {
      scopeFormats = createScopeConfig(config);
    } catch (Exception e) {
      LOG.warn("Failed to parse scopeName format, using default scopeName formats", e);
      scopeFormats = new ScopeFormats();
    }
    this.scopeFormats = scopeFormats;

    // second, instantiate any custom configured reporters

    final String className = config.getString(KEY_METRICS_REPORTER_CLASS, null);
    if (className == null) {
      // by default, create JMX metrics
      LOG.info("No metrics reporter configured, exposing metrics via JMX");
      this.reporter = startJmxReporter(config);
      this.executor = null;
    } else {
      MetricReporter reporter;
      ScheduledExecutorService executor = null;
      try {
        String configuredPeriod = config.getString(KEY_METRICS_REPORTER_INTERVAL, null);
        TimeUnit timeunit = TimeUnit.SECONDS;
        long period = 10;

        if (configuredPeriod != null) {
          try {
            String[] interval = configuredPeriod.split(" ");
            period = Long.parseLong(interval[0]);
            timeunit = TimeUnit.valueOf(interval[1]);
          } catch (Exception e) {
            LOG.error(
                "Cannot parse report interval from config: "
                    + configuredPeriod
                    + " - please use values like '10 SECONDS' or '500 MILLISECONDS'. "
                    + "Using default reporting interval.");
          }
        }

        Configuration reporterConfig = createReporterConfig(config, timeunit, period);

        Class<?> reporterClass = Class.forName(className);
        reporter = (MetricReporter) reporterClass.newInstance();
        reporter.open(reporterConfig);

        if (reporter instanceof Scheduled) {
          executor = Executors.newSingleThreadScheduledExecutor();
          LOG.info("Periodically reporting metrics in intervals of {} {}", period, timeunit.name());

          executor.scheduleWithFixedDelay(
              new ReporterTask((Scheduled) reporter), period, period, timeunit);
        }
      } catch (Throwable t) {
        shutdownExecutor();
        LOG.error(
            "Could not instantiate custom metrics reporter. Defaulting to JMX metrics export.", t);
        reporter = startJmxReporter(config);
      }

      this.reporter = reporter;
      this.executor = executor;
    }
  }
Exemplo n.º 7
0
 File getBaseDir(Configuration configuration) {
   return new File(
       configuration.getString(
           ConfigConstants.JOB_MANAGER_WEB_TMPDIR_KEY, System.getProperty("java.io.tmpdir")));
 }
Exemplo n.º 8
0
  public WebRuntimeMonitor(
      Configuration config, LeaderRetrievalService leaderRetrievalService, ActorSystem actorSystem)
      throws IOException, InterruptedException {
    this.leaderRetrievalService = checkNotNull(leaderRetrievalService);

    final WebMonitorConfig cfg = new WebMonitorConfig(config);

    // create an empty directory in temp for the web server
    String fileName = String.format("flink-web-%s", UUID.randomUUID().toString());
    webRootDir = new File(System.getProperty("java.io.tmpdir"), fileName);
    LOG.info("Using directory {} for the web interface files", webRootDir);

    // figure out where our logs are
    final String flinkRoot = config.getString(ConfigConstants.FLINK_BASE_DIR_PATH_KEY, null);
    final String defaultLogDirectory = flinkRoot + "/log";
    final String logDirectories =
        config.getString(ConfigConstants.JOB_MANAGER_WEB_LOG_PATH_KEY, defaultLogDirectory);

    // find out which directory holds the path for log and stdout
    final ArrayList<String> logPaths = new ArrayList<>();
    final ArrayList<String> outPaths = new ArrayList<>();

    // yarn allows for multiple log directories. Search in all.
    for (String paths : logDirectories.split(",")) {
      File dir = new File(paths);
      if (dir.exists() && dir.isDirectory() && dir.canRead()) {
        if (dir.listFiles(LOG_FILE_PATTERN).length == 1) {
          logPaths.add(paths);
        }
        if (dir.listFiles(STDOUT_FILE_PATTERN).length == 1) {
          outPaths.add(paths);
        }
      }
    }

    // we don't want any ambiguities. There must be only one log and out file.
    if (logPaths.size() != 1 || outPaths.size() != 1) {
      throw new IllegalConfigurationException(
          "The path to the log and out files (" + logDirectories + ") is not valid.");
    }

    final File logDir = new File(logPaths.get(0));
    final File outDir = new File(outPaths.get(0));
    LOG.info("Serving job manager logs from {}", logDir.getAbsolutePath());
    LOG.info("Serving job manager stdout from {}", outDir.getAbsolutePath());

    // port configuration
    this.configuredPort = cfg.getWebFrontendPort();
    if (this.configuredPort < 0) {
      throw new IllegalArgumentException("Web frontend port is invalid: " + this.configuredPort);
    }

    timeout = AkkaUtils.getTimeout(config);
    FiniteDuration lookupTimeout = AkkaUtils.getTimeout(config);

    retriever = new JobManagerRetriever(this, actorSystem, lookupTimeout, timeout);

    ExecutionGraphHolder currentGraphs = new ExecutionGraphHolder();

    router =
        new Router()
            // config how to interact with this web server
            .GET("/config", handler(new DashboardConfigHandler(cfg.getRefreshInterval())))

            // the overview - how many task managers, slots, free slots, ...
            .GET("/overview", handler(new ClusterOverviewHandler(DEFAULT_REQUEST_TIMEOUT)))

            // job manager configuration, log and stdout
            .GET("/jobmanager/config", handler(new JobManagerConfigHandler(config)))

            // overview over jobs
            .GET(
                "/joboverview",
                handler(new CurrentJobsOverviewHandler(DEFAULT_REQUEST_TIMEOUT, true, true)))
            .GET(
                "/joboverview/running",
                handler(new CurrentJobsOverviewHandler(DEFAULT_REQUEST_TIMEOUT, true, false)))
            .GET(
                "/joboverview/completed",
                handler(new CurrentJobsOverviewHandler(DEFAULT_REQUEST_TIMEOUT, false, true)))
            .GET("/jobs", handler(new CurrentJobIdsHandler(retriever, DEFAULT_REQUEST_TIMEOUT)))
            .GET("/jobs/:jobid", handler(new JobDetailsHandler(currentGraphs)))
            .GET("/jobs/:jobid/vertices", handler(new JobDetailsHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid",
                handler(new JobVertexDetailsHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid/subtasktimes",
                handler(new SubtasksTimesHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid/accumulators",
                handler(new JobVertexAccumulatorsHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid/subtasks/accumulators",
                handler(new SubtasksAllAccumulatorsHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid/subtasks/:subtasknum",
                handler(new SubtaskCurrentAttemptDetailsHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid/subtasks/:subtasknum/attempts/:attempt",
                handler(new SubtaskExecutionAttemptDetailsHandler(currentGraphs)))
            .GET(
                "/jobs/:jobid/vertices/:vertexid/subtasks/:subtasknum/attempts/:attempt/accumulators",
                handler(new SubtaskExecutionAttemptAccumulatorsHandler(currentGraphs)))
            .GET("/jobs/:jobid/plan", handler(new JobPlanHandler(currentGraphs)))
            .GET("/jobs/:jobid/config", handler(new JobConfigHandler(currentGraphs)))
            .GET("/jobs/:jobid/exceptions", handler(new JobExceptionsHandler(currentGraphs)))
            .GET("/jobs/:jobid/accumulators", handler(new JobAccumulatorsHandler(currentGraphs)))
            .GET("/taskmanagers", handler(new TaskManagersHandler(DEFAULT_REQUEST_TIMEOUT)))
            .GET(
                "/taskmanagers/:" + TaskManagersHandler.TASK_MANAGER_ID_KEY,
                handler(new TaskManagersHandler(DEFAULT_REQUEST_TIMEOUT)))
            .GET(
                "/jobmanager/log",
                new StaticFileServerHandler(
                    retriever, jobManagerAddressPromise.future(), timeout, logDir))
            .GET(
                "/jobmanager/stdout",
                new StaticFileServerHandler(
                    retriever, jobManagerAddressPromise.future(), timeout, outDir))
            // this handler serves all the static contents
            .GET(
                "/:*",
                new StaticFileServerHandler(
                    retriever, jobManagerAddressPromise.future(), timeout, webRootDir));

    synchronized (startupShutdownLock) {

      // add shutdown hook for deleting the directory
      try {
        Runtime.getRuntime()
            .addShutdownHook(
                new Thread() {
                  @Override
                  public void run() {
                    shutdown();
                  }
                });
      } catch (IllegalStateException e) {
        // race, JVM is in shutdown already, we can safely ignore this
        LOG.debug("Unable to add shutdown hook, shutdown already in progress", e);
      } catch (Throwable t) {
        // these errors usually happen when the shutdown is already in progress
        LOG.warn("Error while adding shutdown hook", t);
      }

      ChannelInitializer<SocketChannel> initializer =
          new ChannelInitializer<SocketChannel>() {

            @Override
            protected void initChannel(SocketChannel ch) {
              Handler handler = new Handler(router);

              ch.pipeline()
                  .addLast(new HttpServerCodec())
                  .addLast(new HttpObjectAggregator(65536))
                  .addLast(new ChunkedWriteHandler())
                  .addLast(handler.name(), handler);
            }
          };

      NioEventLoopGroup bossGroup = new NioEventLoopGroup(1);
      NioEventLoopGroup workerGroup = new NioEventLoopGroup();

      this.bootstrap = new ServerBootstrap();
      this.bootstrap
          .group(bossGroup, workerGroup)
          .channel(NioServerSocketChannel.class)
          .childHandler(initializer);

      Channel ch = this.bootstrap.bind(configuredPort).sync().channel();
      this.serverChannel = ch;

      InetSocketAddress bindAddress = (InetSocketAddress) ch.localAddress();
      String address = bindAddress.getAddress().getHostAddress();
      int port = bindAddress.getPort();

      LOG.info("Web frontend listening at " + address + ':' + port);
    }
  }