/** Stops all cores. */
public void shutdown() {
log.info("Shutting down CoreContainer instance=" + System.identityHashCode(this));
isShutDown = true;
ExecutorUtil.shutdownAndAwaitTermination(coreContainerWorkExecutor);
if (isZooKeeperAware()) {
cancelCoreRecoveries();
zkSys.zkController.publishNodeAsDown(zkSys.zkController.getNodeName());
}
try {
if (coreAdminHandler != null) coreAdminHandler.shutdown();
} catch (Exception e) {
log.warn("Error shutting down CoreAdminHandler. Continuing to close CoreContainer.", e);
}
try {
// First wake up the closer thread, it'll terminate almost immediately since it checks
// isShutDown.
synchronized (solrCores.getModifyLock()) {
solrCores.getModifyLock().notifyAll(); // wake up anyone waiting
}
if (backgroundCloser
!= null) { // Doesn't seem right, but tests get in here without initializing the core.
try {
backgroundCloser.join();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
if (log.isDebugEnabled()) {
log.debug("backgroundCloser thread was interrupted before finishing");
}
}
}
// Now clear all the cores that are being operated upon.
solrCores.close();
// It's still possible that one of the pending dynamic load operation is waiting, so wake it
// up if so.
// Since all the pending operations queues have been drained, there should be nothing to do.
synchronized (solrCores.getModifyLock()) {
solrCores.getModifyLock().notifyAll(); // wake up the thread
}
} finally {
try {
if (shardHandlerFactory != null) {
shardHandlerFactory.close();
}
} finally {
try {
if (updateShardHandler != null) {
updateShardHandler.close();
}
} finally {
// we want to close zk stuff last
zkSys.close();
}
}
}
// It should be safe to close the authorization plugin at this point.
try {
if (authorizationPlugin != null) {
authorizationPlugin.plugin.close();
}
} catch (IOException e) {
log.warn("Exception while closing authorization plugin.", e);
}
// It should be safe to close the authentication plugin at this point.
try {
if (authenticationPlugin != null) {
authenticationPlugin.plugin.close();
authenticationPlugin = null;
}
} catch (Exception e) {
log.warn("Exception while closing authentication plugin.", e);
}
org.apache.lucene.util.IOUtils.closeWhileHandlingException(loader); // best effort
}
/** Load the cores defined for this CoreContainer */
public void load() {
log.info("Loading cores into CoreContainer [instanceDir={}]", loader.getInstancePath());
// add the sharedLib to the shared resource loader before initializing cfg based plugins
String libDir = cfg.getSharedLibDirectory();
if (libDir != null) {
Path libPath = loader.getInstancePath().resolve(libDir);
try {
loader.addToClassLoader(SolrResourceLoader.getURLs(libPath));
loader.reloadLuceneSPI();
} catch (IOException e) {
log.warn("Couldn't add files from {} to classpath: {}", libPath, e.getMessage());
}
}
shardHandlerFactory =
ShardHandlerFactory.newInstance(cfg.getShardHandlerFactoryPluginInfo(), loader);
updateShardHandler = new UpdateShardHandler(cfg.getUpdateShardHandlerConfig());
solrCores.allocateLazyCores(cfg.getTransientCacheSize(), loader);
logging = LogWatcher.newRegisteredLogWatcher(cfg.getLogWatcherConfig(), loader);
hostName = cfg.getNodeName();
zkSys.initZooKeeper(this, solrHome, cfg.getCloudConfig());
if (isZooKeeperAware())
pkiAuthenticationPlugin =
new PKIAuthenticationPlugin(this, zkSys.getZkController().getNodeName());
ZkStateReader.ConfigData securityConfig =
isZooKeeperAware()
? getZkController().getZkStateReader().getSecurityProps(false)
: new ZkStateReader.ConfigData(EMPTY_MAP, -1);
initializeAuthorizationPlugin((Map<String, Object>) securityConfig.data.get("authorization"));
initializeAuthenticationPlugin((Map<String, Object>) securityConfig.data.get("authentication"));
this.backupRepoFactory = new BackupRepositoryFactory(cfg.getBackupRepositoryPlugins());
containerHandlers.put(ZK_PATH, new ZookeeperInfoHandler(this));
securityConfHandler = new SecurityConfHandler(this);
collectionsHandler = createHandler(cfg.getCollectionsHandlerClass(), CollectionsHandler.class);
containerHandlers.put(COLLECTIONS_HANDLER_PATH, collectionsHandler);
infoHandler = createHandler(cfg.getInfoHandlerClass(), InfoHandler.class);
containerHandlers.put(INFO_HANDLER_PATH, infoHandler);
coreAdminHandler = createHandler(cfg.getCoreAdminHandlerClass(), CoreAdminHandler.class);
containerHandlers.put(CORES_HANDLER_PATH, coreAdminHandler);
configSetsHandler = createHandler(cfg.getConfigSetsHandlerClass(), ConfigSetsHandler.class);
containerHandlers.put(CONFIGSETS_HANDLER_PATH, configSetsHandler);
containerHandlers.put(AUTHZ_PATH, securityConfHandler);
containerHandlers.put(AUTHC_PATH, securityConfHandler);
if (pkiAuthenticationPlugin != null)
containerHandlers.put(
PKIAuthenticationPlugin.PATH, pkiAuthenticationPlugin.getRequestHandler());
coreConfigService = ConfigSetService.createConfigSetService(cfg, loader, zkSys.zkController);
containerProperties.putAll(cfg.getSolrProperties());
// setup executor to load cores in parallel
ExecutorService coreLoadExecutor =
ExecutorUtil.newMDCAwareFixedThreadPool(
cfg.getCoreLoadThreadCount(
isZooKeeperAware()
? DEFAULT_CORE_LOAD_THREADS_IN_CLOUD
: DEFAULT_CORE_LOAD_THREADS),
new DefaultSolrThreadFactory("coreLoadExecutor"));
final List<Future<SolrCore>> futures = new ArrayList<>();
try {
List<CoreDescriptor> cds = coresLocator.discover(this);
if (isZooKeeperAware()) {
// sort the cores if it is in SolrCloud. In standalone node the order does not matter
CoreSorter coreComparator = new CoreSorter().init(this);
cds = new ArrayList<>(cds); // make a copy
Collections.sort(cds, coreComparator::compare);
}
checkForDuplicateCoreNames(cds);
for (final CoreDescriptor cd : cds) {
if (cd.isTransient() || !cd.isLoadOnStartup()) {
solrCores.putDynamicDescriptor(cd.getName(), cd);
} else if (asyncSolrCoreLoad) {
solrCores.markCoreAsLoading(cd);
}
if (cd.isLoadOnStartup()) {
futures.add(
coreLoadExecutor.submit(
() -> {
SolrCore core;
try {
if (zkSys.getZkController() != null) {
zkSys.getZkController().throwErrorIfReplicaReplaced(cd);
}
core = create(cd, false);
} finally {
if (asyncSolrCoreLoad) {
solrCores.markCoreAsNotLoading(cd);
}
}
try {
zkSys.registerInZk(core, true);
} catch (RuntimeException e) {
SolrException.log(log, "Error registering SolrCore", e);
}
return core;
}));
}
}
// Start the background thread
backgroundCloser = new CloserThread(this, solrCores, cfg);
backgroundCloser.start();
} finally {
if (asyncSolrCoreLoad && futures != null) {
coreContainerWorkExecutor.submit(
(Runnable)
() -> {
try {
for (Future<SolrCore> future : futures) {
try {
future.get();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} catch (ExecutionException e) {
log.error("Error waiting for SolrCore to be created", e);
}
}
} finally {
ExecutorUtil.shutdownAndAwaitTermination(coreLoadExecutor);
}
});
} else {
ExecutorUtil.shutdownAndAwaitTermination(coreLoadExecutor);
}
}
if (isZooKeeperAware()) {
zkSys.getZkController().checkOverseerDesignate();
}
}