| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ignite.internal; |
| |
| import java.io.IOException; |
| import java.lang.management.ManagementFactory; |
| import java.net.InetAddress; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.RejectedExecutionException; |
| import org.apache.ignite.IgniteLogger; |
| import org.apache.ignite.internal.util.typedef.F; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.internal.util.worker.GridWorker; |
| |
| /** |
| * This class run some basic network diagnostic tests in the background and |
| * reports errors or suspicious results. |
| */ |
| final class GridDiagnostic { |
| /** */ |
| private static final int REACH_TIMEOUT = 2000; |
| |
| /** |
| * Ensure singleton. |
| */ |
| private GridDiagnostic() { |
| // No-op. |
| } |
| |
| /** |
| * @param igniteInstanceName Grid instance name. Can be {@code null}. |
| * @param exec Executor service. |
| * @param parentLog Parent logger. |
| */ |
| static void runBackgroundCheck(String igniteInstanceName, Executor exec, IgniteLogger parentLog) { |
| assert exec != null; |
| assert parentLog != null; |
| |
| final IgniteLogger log = parentLog.getLogger(GridDiagnostic.class); |
| |
| try { |
| exec.execute(new GridWorker(igniteInstanceName, "grid-diagnostic-1", log) { |
| @Override public void body() { |
| try { |
| InetAddress locHost = U.getLocalHost(); |
| |
| if (!locHost.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."); |
| } |
| } |
| 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."); |
| } |
| } |
| }); |
| |
| exec.execute(new GridWorker(igniteInstanceName, "grid-diagnostic-2", log) { |
| @Override public void body() { |
| try { |
| InetAddress locHost = U.getLocalHost(); |
| |
| if (locHost.isLoopbackAddress()) { |
| U.warn(log, "Default local host is a loopback address. This can be a sign of " + |
| "potential network configuration problem."); |
| } |
| } |
| 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."); |
| } |
| } |
| }); |
| |
| exec.execute(new GridWorker(igniteInstanceName, "grid-diagnostic-5", log) { |
| @Override public void body() { |
| // Fix for GG-1075. |
| if (F.isEmpty(U.allLocalMACs())) |
| 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."); |
| } |
| }); |
| |
| exec.execute(new GridWorker(igniteInstanceName, "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) { |
| // No-op. |
| } |
| |
| 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."); |
| } |
| } |
| }); |
| |
| final long HALF_GB = 512L/*MB*/ * 1024 * 1024; |
| |
| exec.execute(new GridWorker(igniteInstanceName, "grid-diagnostic-7", log) { |
| @Override public void body() { |
| long initBytes = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage().getInit(); |
| long initMb = initBytes / 1024 / 1024; |
| |
| if (initBytes < HALF_GB) |
| U.quietAndWarn(log, |
| String.format("Initial heap size is %dMB (should be no less than 512MB, " + |
| "use -Xms512m -Xmx512m).", initMb)); |
| } |
| }); |
| } |
| 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 Ignite.", |
| "Failed to start background network diagnostics.", e); |
| } |
| } |
| } |