/**
* 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);
}
}
/** @throws Exception If failed. */
@SuppressWarnings({"AssignmentToCatchBlockParameter"})
public void testCancel() throws Exception {
Ignite ignite = G.ignite(getTestGridName());
ignite
.compute()
.localDeployTask(GridCancelTestTask.class, GridCancelTestTask.class.getClassLoader());
ComputeTaskFuture<?> res0 =
executeAsync(
ignite.compute().withTimeout(maxJobExecTime * 2),
GridCancelTestTask.class.getName(),
null);
try {
Object res = res0.get();
info("Cancel test result: " + res);
synchronized (mux) {
// Every execute must be called.
assert execCnt <= SPLIT_COUNT : "Invalid execute count: " + execCnt;
// Job returns 1 if was cancelled.
assert (Integer) res <= SPLIT_COUNT : "Invalid task result: " + res;
// Should be exactly the same as Jobs number.
assert cancelCnt <= SPLIT_COUNT : "Invalid cancel count: " + cancelCnt;
// One per start and one per stop and some that come with heartbeats.
assert colResolutionCnt > SPLIT_COUNT + 1
: "Invalid collision resolution count: " + colResolutionCnt;
}
} catch (ComputeTaskTimeoutException e) {
error("Task execution got timed out.", e);
} catch (Exception e) {
assert e.getCause() != null;
if (e.getCause() instanceof IgniteCheckedException) e = (Exception) e.getCause();
if (e.getCause() instanceof IOException) e = (Exception) e.getCause();
assert e.getCause() instanceof InterruptedException
: "Invalid exception cause: " + e.getCause();
}
}
/** {@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);
}