Esempio n. 1
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  /**
   * Schedules runnable task for execution.
   *
   * @param w Runnable task.
   * @throws GridException Thrown if any exception occurred.
   */
  @SuppressWarnings({"CatchGenericClass", "ProhibitedExceptionThrown"})
  public void execute(final GridWorker w) throws GridException {
    workers.add(w);

    try {
      exec.execute(
          new Runnable() {
            @Override
            public void run() {
              try {
                w.run();
              } finally {
                workers.remove(w);
              }
            }
          });
    } catch (RejectedExecutionException e) {
      workers.remove(w);

      throw new GridComputeExecutionRejectedException(
          "Failed to execute worker due to execution rejection.", e);
    } catch (RuntimeException e) {
      workers.remove(w);

      throw new GridException("Failed to execute worker due to runtime exception.", e);
    } catch (Error e) {
      workers.remove(w);

      throw e;
    }
  }
  /**
   * @param gridName Grid instance name. Can be {@code null}.
   * @param exec Executor service.
   * @param parentLog Parent logger.
   */
  static void runBackgroundCheck(String gridName, Executor exec, GridLogger parentLog) {
    assert exec != null;
    assert parentLog != null;

    final GridLogger log = parentLog.getLogger(GridDiagnostic.class);

    try {
      exec.execute(
          new GridWorker(gridName, "grid-diagnostic-1", log) {
            @Override
            public void body() {
              try {
                InetAddress localHost = U.getLocalHost();

                if (!localHost.isReachable(REACH_TIMEOUT)) {
                  U.warn(
                      log,
                      "Default local host is unreachable. This may lead to delays on "
                          + "grid network operations. Check your OS network setting to correct it.",
                      "Default local host is unreachable.");
                }
              } catch (IOException ignore) {
                U.warn(
                    log,
                    "Failed to perform network diagnostics. It is usually caused by serious "
                        + "network configuration problem. Check your OS network setting to correct it.",
                    "Failed to perform network diagnostics.");
              }
            }
          });

      exec.execute(
          new GridWorker(gridName, "grid-diagnostic-2", log) {
            @Override
            public void body() {
              try {
                InetAddress localHost = U.getLocalHost();

                if (localHost.isLoopbackAddress()) {
                  U.warn(
                      log,
                      "Default local host is a loopback address. This can be a sign of "
                          + "potential network configuration problem.",
                      "Default local host is a loopback address.");
                }
              } catch (IOException ignore) {
                U.warn(
                    log,
                    "Failed to perform network diagnostics. It is usually caused by serious "
                        + "network configuration problem. Check your OS network setting to correct it.",
                    "Failed to perform network diagnostics.");
              }
            }
          });

      exec.execute(
          new GridWorker(gridName, "grid-diagnostic-3", log) {
            @Override
            public void body() {
              String jdkStrLow = U.jdkString().toLowerCase();

              if (jdkStrLow.contains("jrockit") && jdkStrLow.contains("1.5.")) {
                U.warn(
                    log,
                    "BEA JRockit VM ver. 1.5.x has shown problems with NIO functionality in our "
                        + "tests that were not reproducible in other VMs. We recommend using Sun VM. Should you "
                        + "have further questions please contact us at [email protected]",
                    "BEA JRockit VM ver. 1.5.x is not supported.");
              }
            }
          });

      exec.execute(
          new GridWorker(gridName, "grid-diagnostic-4", log) {
            @Override
            public void body() {
              // Sufficiently tested OS.
              if (!U.isSufficientlyTestedOs()) {
                U.warn(
                    log,
                    "This operating system has been tested less rigorously: "
                        + U.osString()
                        + ". Our team will appreciate the feedback if you experience any problems running "
                        + "gridgain in this environment. You can always send your feedback to [email protected]",
                    "This OS is tested less rigorously: " + U.osString());
              }
            }
          });

      exec.execute(
          new GridWorker(gridName, "grid-diagnostic-5", log) {
            @Override
            public void body() {
              // Fix for GG-1075.
              if (U.allLocalMACs() == null)
                U.warn(
                    log,
                    "No live network interfaces detected. If IP-multicast discovery is used - "
                        + "make sure to add 127.0.0.1 as a local address.",
                    "No live network interfaces. Add 127.0.0.1 as a local address.");
            }
          });

      exec.execute(
          new GridWorker(gridName, "grid-diagnostic-6", log) {
            @Override
            public void body() {
              if (System.getProperty("com.sun.management.jmxremote") != null) {
                String portStr = System.getProperty("com.sun.management.jmxremote.port");

                if (portStr != null)
                  try {
                    Integer.parseInt(portStr);

                    return;
                  } catch (NumberFormatException ignore) {
                  }

                U.warn(
                    log,
                    "JMX remote management is enabled but JMX port is either not set or invalid. "
                        + "Check system property 'com.sun.management.jmxremote.port' to make sure it specifies "
                        + "valid TCP/IP port.",
                    "JMX remote port is invalid - JMX management is off.");
              }
            }
          });
    } catch (RejectedExecutionException e) {
      U.error(
          log,
          "Failed to start background network diagnostics check due to thread pool execution "
              + "rejection. In most cases it indicates a severe configuration problem with GridGain.",
          "Failed to start background network diagnostics.",
          e);
    }
  }