/** * Change topology. * * @param parent Grid to execute tasks on. * @param add New nodes count. * @param rmv Remove nodes count. * @param type Type of nodes to manipulate. */ private static void changeTopology(Ignite parent, int add, int rmv, String type) { Collection<ComputeTaskFuture<?>> tasks = new ArrayList<>(); IgniteCompute comp = parent.compute().withAsync(); // Start nodes in parallel. while (add-- > 0) { comp.execute(ClientStartNodeTask.class, type); tasks.add(comp.future()); } for (ComputeTaskFuture<?> task : tasks) task.get(); // Stop nodes in sequence. while (rmv-- > 0) parent.compute().execute(ClientStopNodeTask.class, type); // Wait for node stops. // U.sleep(1000); Collection<String> gridNames = new ArrayList<>(); for (Ignite g : G.allGrids()) gridNames.add(g.name()); parent.log().info(">>> Available grids: " + gridNames); }
/** * Start grid with IGFS. * * @param gridName Grid name. * @param igfsName IGFS name * @param mode IGFS mode. * @param secondaryFs Secondary file system (optional). * @param restCfg Rest configuration string (optional). * @return Started grid instance. * @throws Exception If failed. */ protected Ignite startGridWithIgfs( String gridName, String igfsName, IgfsMode mode, @Nullable IgfsSecondaryFileSystem secondaryFs, @Nullable IgfsIpcEndpointConfiguration restCfg) throws Exception { FileSystemConfiguration igfsCfg = new FileSystemConfiguration(); igfsCfg.setDataCacheName("dataCache"); igfsCfg.setMetaCacheName("metaCache"); igfsCfg.setName(igfsName); igfsCfg.setBlockSize(IGFS_BLOCK_SIZE); igfsCfg.setDefaultMode(mode); igfsCfg.setIpcEndpointConfiguration(restCfg); igfsCfg.setSecondaryFileSystem(secondaryFs); igfsCfg.setPrefetchBlocks(PREFETCH_BLOCKS); igfsCfg.setSequentialReadsBeforePrefetch(SEQ_READS_BEFORE_PREFETCH); CacheConfiguration dataCacheCfg = defaultCacheConfiguration(); dataCacheCfg.setName("dataCache"); dataCacheCfg.setCacheMode(PARTITIONED); dataCacheCfg.setNearConfiguration(null); dataCacheCfg.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC); dataCacheCfg.setAffinityMapper(new IgfsGroupDataBlocksKeyMapper(2)); dataCacheCfg.setBackups(0); dataCacheCfg.setAtomicityMode(TRANSACTIONAL); dataCacheCfg.setOffHeapMaxMemory(0); CacheConfiguration metaCacheCfg = defaultCacheConfiguration(); metaCacheCfg.setName("metaCache"); metaCacheCfg.setCacheMode(REPLICATED); metaCacheCfg.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC); metaCacheCfg.setAtomicityMode(TRANSACTIONAL); IgniteConfiguration cfg = new IgniteConfiguration(); cfg.setGridName(gridName); TcpDiscoverySpi discoSpi = new TcpDiscoverySpi(); discoSpi.setIpFinder(new TcpDiscoveryVmIpFinder(true)); cfg.setDiscoverySpi(discoSpi); cfg.setCacheConfiguration(dataCacheCfg, metaCacheCfg); cfg.setFileSystemConfiguration(igfsCfg); cfg.setLocalHost("127.0.0.1"); cfg.setConnectorConfiguration(null); return G.start(cfg); }
/** * Example for start/stop node tasks. * * @param args Not used. */ public static void main(String[] args) { String nodeType = "tcp+ssl"; // Start initial node = 1 try (Ignite g = G.start(NODE_CFG.get(nodeType))) { // Change topology. changeTopology(g, 4, 1, nodeType); changeTopology(g, 1, 4, nodeType); // Stop node by id = 0 g.compute().execute(ClientStopNodeTask.class, g.cluster().localNode().id().toString()); // Wait for node stops. // U.sleep(1000); assert G.allGrids().isEmpty(); } catch (Exception e) { System.err.println("Uncaught exception: " + e.getMessage()); e.printStackTrace(System.err); } }
/** * Starts new grid node. * * @param gridName name of new node. * @param springCfg file with spring configuration to use for this node. * @return a grid instance local to new node {@link GridGain#start(GridConfiguration)}. * @throws Exception if node run failed. */ protected Grid startNode(String gridName, File springCfg) throws Exception { assert springCfg != null; ListableBeanFactory springCtx = new FileSystemXmlApplicationContext("file:///" + springCfg.getAbsolutePath()); Map cfgMap = springCtx.getBeansOfType(GridConfiguration.class); assert cfgMap != null; assert !cfgMap.isEmpty(); GridConfiguration cfg = (GridConfiguration) cfgMap.values().iterator().next(); cfg.setGridName(gridName + "-" + getNextNodeNum()); return G.start(cfg); }
/** {@inheritDoc} */ @Override protected Object executeJob(int gridSize, String type) { log.info(">>> Starting new grid node [currGridSize=" + gridSize + ", arg=" + type + "]"); if (type == null) throw new IllegalArgumentException("Node type to start should be specified."); IgniteConfiguration cfg = getConfig(type); // Generate unique for this VM grid name. String gridName = cfg.getGridName() + " (" + UUID.randomUUID() + ")"; // Update grid name (required to be unique). cfg.setGridName(gridName); // Start new node in current VM. Ignite g = G.start(cfg); log.info( ">>> Grid started [nodeId=" + g.cluster().localNode().id() + ", name='" + g.name() + "']"); return true; }
/** {@inheritDoc} */ @Override protected void afterTestsStopped() throws Exception { G.stopAll(true); }
/** * See <a href="http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html"> * http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html</a> for more * information. * * @param str Virtual name by which the class is registered as a {@code startupClass} in the * {@code config.xml} file * @param params A hashtable that is made up of the name-value pairs supplied from the {@code * startupArgs} property * @return Result string (log message). * @throws Exception Thrown if error occurred. */ @SuppressWarnings({"unchecked", "CatchGenericClass"}) @Override public String startup(String str, Hashtable params) throws Exception { GridLogger log = new GridJavaLogger(LoggingHelper.getServerLogger()); cfgFile = (String) params.get(cfgFilePathParam); if (cfgFile == null) { throw new IllegalArgumentException("Failed to read property: " + cfgFilePathParam); } String workMgrName = (String) params.get(workMgrParam); URL cfgUrl = U.resolveGridGainUrl(cfgFile); if (cfgUrl == null) throw new ServerLifecycleException( "Failed to find Spring configuration file (path provided should be " + "either absolute, relative to GRIDGAIN_HOME, or relative to META-INF folder): " + cfgFile); GenericApplicationContext springCtx; try { springCtx = new GenericApplicationContext(); XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(springCtx); xmlReader.loadBeanDefinitions(new UrlResource(cfgUrl)); springCtx.refresh(); } catch (BeansException e) { throw new ServerLifecycleException( "Failed to instantiate Spring XML application context: " + e.getMessage(), e); } Map cfgMap; try { // Note: Spring is not generics-friendly. cfgMap = springCtx.getBeansOfType(GridConfiguration.class); } catch (BeansException e) { throw new ServerLifecycleException( "Failed to instantiate bean [type=" + GridConfiguration.class + ", err=" + e.getMessage() + ']', e); } if (cfgMap == null) throw new ServerLifecycleException( "Failed to find a single grid factory configuration in: " + cfgUrl); if (cfgMap.isEmpty()) throw new ServerLifecycleException("Can't find grid factory configuration in: " + cfgUrl); try { ExecutorService execSvc = null; MBeanServer mbeanSrv = null; for (GridConfiguration cfg : (Collection<GridConfiguration>) cfgMap.values()) { assert cfg != null; GridConfigurationAdapter adapter = new GridConfigurationAdapter(cfg); // Set logger. if (cfg.getGridLogger() == null) adapter.setGridLogger(log); if (cfg.getExecutorService() == null) { if (execSvc == null) execSvc = workMgrName != null ? new GridThreadWorkManagerExecutor(workMgrName) : new GridThreadWorkManagerExecutor(J2EEWorkManager.getDefault()); adapter.setExecutorService(execSvc); } if (cfg.getMBeanServer() == null) { if (mbeanSrv == null) { InitialContext ctx = null; try { ctx = new InitialContext(); mbeanSrv = (MBeanServer) ctx.lookup("java:comp/jmx/runtime"); } catch (Exception e) { throw new IllegalArgumentException( "MBean server was not provided and failed to obtain " + "Weblogic MBean server.", e); } finally { if (ctx != null) ctx.close(); } } adapter.setMBeanServer(mbeanSrv); } Grid grid = G.start(adapter, springCtx); // Test if grid is not null - started properly. if (grid != null) gridNames.add(grid.name()); } return getClass().getSimpleName() + " started successfully."; } catch (GridException e) { // Stop started grids only. for (String name : gridNames) G.stop(name, true); throw new ServerLifecycleException("Failed to start GridGain.", e); } }