protected String handleRequest(
Channel channel, StreamInput buffer, long requestId, Version version) throws IOException {
final String action = buffer.readString();
final NettyTransportChannel transportChannel =
new NettyTransportChannel(transport, action, channel, requestId, version);
try {
final TransportRequestHandler handler = transportServiceAdapter.handler(action);
if (handler == null) {
throw new ActionNotFoundTransportException(action);
}
final TransportRequest request = handler.newInstance();
request.remoteAddress(
new InetSocketTransportAddress((InetSocketAddress) channel.getRemoteAddress()));
request.readFrom(buffer);
if (handler.executor() == ThreadPool.Names.SAME) {
//noinspection unchecked
handler.messageReceived(request, transportChannel);
} else {
threadPool
.executor(handler.executor())
.execute(new RequestHandler(handler, request, transportChannel, action));
}
} catch (Throwable e) {
try {
transportChannel.sendResponse(e);
} catch (IOException e1) {
logger.warn("Failed to send error message back to client for action [" + action + "]", e);
logger.warn("Actual Exception", e1);
}
}
return action;
}
protected void handleResponse(
Channel channel, StreamInput buffer, final TransportResponseHandler handler) {
final TransportResponse response = handler.newInstance();
response.remoteAddress(
new InetSocketTransportAddress((InetSocketAddress) channel.getRemoteAddress()));
response.remoteAddress();
try {
response.readFrom(buffer);
} catch (Throwable e) {
handleException(
handler,
new TransportSerializationException(
"Failed to deserialize response of type [" + response.getClass().getName() + "]", e));
return;
}
try {
if (handler.executor() == ThreadPool.Names.SAME) {
//noinspection unchecked
handler.handleResponse(response);
} else {
threadPool.executor(handler.executor()).execute(new ResponseHandler(handler, response));
}
} catch (Throwable e) {
handleException(handler, new ResponseHandlerFailureTransportException(e));
}
}
private void handleException(final TransportResponseHandler handler, Throwable error) {
if (!(error instanceof RemoteTransportException)) {
error = new RemoteTransportException(error.getMessage(), error);
}
final RemoteTransportException rtx = (RemoteTransportException) error;
if (handler.executor() == ThreadPool.Names.SAME) {
try {
handler.handleException(rtx);
} catch (Throwable e) {
logger.error("failed to handle exception response [{}]", e, handler);
}
} else {
threadPool
.executor(handler.executor())
.execute(
new Runnable() {
@Override
public void run() {
try {
handler.handleException(rtx);
} catch (Throwable e) {
logger.error("failed to handle exception response [{}]", e, handler);
}
}
});
}
}
@Override
public void clusterChanged(ClusterChangedEvent event) {
if (!master && event.localNodeMaster()) {
master = true;
for (LocalNodeMasterListener listener : listeners) {
Executor executor = threadPool.executor(listener.executorName());
executor.execute(new OnMasterRunnable(listener));
}
return;
}
if (master && !event.localNodeMaster()) {
master = false;
for (LocalNodeMasterListener listener : listeners) {
Executor executor = threadPool.executor(listener.executorName());
executor.execute(new OffMasterRunnable(listener));
}
}
}
IndexWarmer(Settings settings, ThreadPool threadPool, Listener... listeners) {
super(settings);
ArrayList<Listener> list = new ArrayList<>();
final Executor executor = threadPool.executor(ThreadPool.Names.WARMER);
list.add(new FieldDataWarmer(executor));
for (Listener listener : listeners) {
list.add(listener);
}
this.listeners = Collections.unmodifiableList(list);
}
public void testIndexingThreadPoolsMaxSize() throws InterruptedException {
String threadPoolName = randomThreadPoolName();
for (String name : new String[] {ThreadPool.Names.BULK, ThreadPool.Names.INDEX}) {
ThreadPool threadPool = null;
try {
int maxSize = EsExecutors.boundedNumberOfProcessors(Settings.EMPTY);
// try to create a too-big (maxSize+1) thread pool
threadPool =
new ThreadPool(
Settings.builder()
.put("node.name", "testIndexingThreadPoolsMaxSize")
.put("threadpool." + name + ".size", maxSize + 1)
.build());
// confirm it clipped us at the maxSize:
assertEquals(
maxSize, ((ThreadPoolExecutor) threadPool.executor(name)).getMaximumPoolSize());
ClusterSettings clusterSettings =
new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS);
threadPool.setClusterSettings(clusterSettings);
// update it to a tiny size:
clusterSettings.applySettings(
Settings.builder().put("threadpool." + name + ".size", 1).build());
// confirm it worked:
assertEquals(1, ((ThreadPoolExecutor) threadPool.executor(name)).getMaximumPoolSize());
// try to update to too-big size:
clusterSettings.applySettings(
Settings.builder().put("threadpool." + name + ".size", maxSize + 1).build());
// confirm it clipped us at the maxSize:
assertEquals(
maxSize, ((ThreadPoolExecutor) threadPool.executor(name)).getMaximumPoolSize());
} finally {
terminateThreadPoolIfNeeded(threadPool);
}
}
}
public void testShutdownNowInterrupts() throws Exception {
String threadPoolName = randomThreadPool(ThreadPool.ThreadPoolType.FIXED);
ThreadPool threadPool = null;
try {
Settings nodeSettings =
Settings.builder()
.put("threadpool." + threadPoolName + ".queue_size", 1000)
.put("node.name", "testShutdownNowInterrupts")
.build();
threadPool = new ThreadPool(nodeSettings);
ClusterSettings clusterSettings =
new ClusterSettings(nodeSettings, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS);
threadPool.setClusterSettings(clusterSettings);
assertEquals(info(threadPool, threadPoolName).getQueueSize().getSingles(), 1000L);
final CountDownLatch latch = new CountDownLatch(1);
ThreadPoolExecutor oldExecutor = (ThreadPoolExecutor) threadPool.executor(threadPoolName);
threadPool
.executor(threadPoolName)
.execute(
() -> {
try {
new CountDownLatch(1).await();
} catch (InterruptedException ex) {
latch.countDown();
Thread.currentThread().interrupt();
}
});
clusterSettings.applySettings(
Settings.builder().put("threadpool." + threadPoolName + ".queue_size", 2000).build());
assertThat(threadPool.executor(threadPoolName), not(sameInstance(oldExecutor)));
assertThat(oldExecutor.isShutdown(), equalTo(true));
assertThat(oldExecutor.isTerminating(), equalTo(true));
assertThat(oldExecutor.isTerminated(), equalTo(false));
threadPool.shutdownNow(); // should interrupt the thread
latch.await(
3, TimeUnit.SECONDS); // If this throws then ThreadPool#shutdownNow didn't interrupt
} finally {
terminateThreadPoolIfNeeded(threadPool);
}
}
public <T extends TransportResponse> void sendRequest(
final DiscoveryNode node,
final String action,
final TransportRequest request,
final TransportRequestOptions options,
TransportResponseHandler<T> handler) {
if (node == null) {
throw new ElasticsearchIllegalStateException("can't send request to a null node");
}
final long requestId = newRequestId();
TimeoutHandler timeoutHandler = null;
try {
clientHandlers.put(requestId, new RequestHolder<>(handler, node, action, timeoutHandler));
if (started.get() == false) {
// if we are not started the exception handling will remove the RequestHolder again and
// calls the handler to notify the caller.
// it will only notify if the toStop code hasn't done the work yet.
throw new TransportException("TransportService is closed stopped can't send request");
}
if (options.timeout() != null) {
timeoutHandler = new TimeoutHandler(requestId);
timeoutHandler.future =
threadPool.schedule(options.timeout(), ThreadPool.Names.GENERIC, timeoutHandler);
}
transport.sendRequest(node, requestId, action, request, options);
} catch (final Throwable e) {
// usually happen either because we failed to connect to the node
// or because we failed serializing the message
final RequestHolder holderToNotify = clientHandlers.remove(requestId);
// if the scheduler raise a EsRejectedExecutionException (due to shutdown), we may have a
// timeout handler, but no future
if (timeoutHandler != null) {
FutureUtils.cancel(timeoutHandler.future);
}
// If holderToNotify == null then handler has already been taken care of.
if (holderToNotify != null) {
// callback that an exception happened, but on a different thread since we don't
// want handlers to worry about stack overflows
final SendRequestTransportException sendRequestException =
new SendRequestTransportException(node, action, e);
threadPool
.executor(ThreadPool.Names.GENERIC)
.execute(
new Runnable() {
@Override
public void run() {
holderToNotify.handler().handleException(sendRequestException);
}
});
}
}
}
protected void handleParsedResponse(
final TransportResponse response, final TransportResponseHandler handler) {
threadPool
.executor(handler.executor())
.execute(
() -> {
try {
handler.handleResponse(response);
} catch (Throwable e) {
handleException(handler, new ResponseHandlerFailureTransportException(e));
}
});
}
public void testScalingExecutorType() throws InterruptedException {
String threadPoolName = randomThreadPool(ThreadPool.ThreadPoolType.SCALING);
ThreadPool threadPool = null;
try {
Settings nodeSettings =
Settings.builder()
.put("threadpool." + threadPoolName + ".size", 10)
.put("node.name", "testScalingExecutorType")
.build();
threadPool = new ThreadPool(nodeSettings);
ClusterSettings clusterSettings =
new ClusterSettings(nodeSettings, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS);
threadPool.setClusterSettings(clusterSettings);
final int expectedMinimum = "generic".equals(threadPoolName) ? 4 : 1;
assertThat(info(threadPool, threadPoolName).getMin(), equalTo(expectedMinimum));
assertThat(info(threadPool, threadPoolName).getMax(), equalTo(10));
final long expectedKeepAlive = "generic".equals(threadPoolName) ? 30 : 300;
assertThat(
info(threadPool, threadPoolName).getKeepAlive().seconds(), equalTo(expectedKeepAlive));
assertEquals(
info(threadPool, threadPoolName).getThreadPoolType(), ThreadPool.ThreadPoolType.SCALING);
assertThat(threadPool.executor(threadPoolName), instanceOf(EsThreadPoolExecutor.class));
// Change settings that doesn't require pool replacement
Executor oldExecutor = threadPool.executor(threadPoolName);
clusterSettings.applySettings(
Settings.builder()
.put("threadpool." + threadPoolName + ".keep_alive", "10m")
.put("threadpool." + threadPoolName + ".min", "2")
.put("threadpool." + threadPoolName + ".size", "15")
.build());
assertEquals(
info(threadPool, threadPoolName).getThreadPoolType(), ThreadPool.ThreadPoolType.SCALING);
assertThat(threadPool.executor(threadPoolName), instanceOf(EsThreadPoolExecutor.class));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getCorePoolSize(),
equalTo(2));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getMaximumPoolSize(),
equalTo(15));
assertThat(info(threadPool, threadPoolName).getMin(), equalTo(2));
assertThat(info(threadPool, threadPoolName).getMax(), equalTo(15));
// Make sure keep alive value changed
assertThat(info(threadPool, threadPoolName).getKeepAlive().minutes(), equalTo(10L));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName))
.getKeepAliveTime(TimeUnit.MINUTES),
equalTo(10L));
assertThat(threadPool.executor(threadPoolName), sameInstance(oldExecutor));
} finally {
terminateThreadPoolIfNeeded(threadPool);
}
}
public void testFixedExecutorType() throws InterruptedException {
String threadPoolName = randomThreadPool(ThreadPool.ThreadPoolType.FIXED);
ThreadPool threadPool = null;
try {
Settings nodeSettings = Settings.builder().put("node.name", "testFixedExecutorType").build();
threadPool = new ThreadPool(nodeSettings);
ClusterSettings clusterSettings =
new ClusterSettings(nodeSettings, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS);
threadPool.setClusterSettings(clusterSettings);
assertThat(threadPool.executor(threadPoolName), instanceOf(EsThreadPoolExecutor.class));
Settings settings =
clusterSettings.applySettings(
Settings.builder().put("threadpool." + threadPoolName + ".size", "15").build());
int expectedSize = getExpectedThreadPoolSize(nodeSettings, threadPoolName, 15);
assertEquals(
info(threadPool, threadPoolName).getThreadPoolType(), ThreadPool.ThreadPoolType.FIXED);
assertThat(threadPool.executor(threadPoolName), instanceOf(EsThreadPoolExecutor.class));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getCorePoolSize(),
equalTo(expectedSize));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getMaximumPoolSize(),
equalTo(expectedSize));
assertThat(info(threadPool, threadPoolName).getMin(), equalTo(expectedSize));
assertThat(info(threadPool, threadPoolName).getMax(), equalTo(expectedSize));
// keep alive does not apply to fixed thread pools
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName))
.getKeepAliveTime(TimeUnit.MINUTES),
equalTo(0L));
// Put old type back
settings = clusterSettings.applySettings(Settings.EMPTY);
assertEquals(
info(threadPool, threadPoolName).getThreadPoolType(), ThreadPool.ThreadPoolType.FIXED);
// Make sure keep alive value is not used
assertThat(info(threadPool, threadPoolName).getKeepAlive(), nullValue());
// Make sure keep pool size value were reused
assertThat(info(threadPool, threadPoolName).getMin(), equalTo(expectedSize));
assertThat(info(threadPool, threadPoolName).getMax(), equalTo(expectedSize));
assertThat(threadPool.executor(threadPoolName), instanceOf(EsThreadPoolExecutor.class));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getCorePoolSize(),
equalTo(expectedSize));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getMaximumPoolSize(),
equalTo(expectedSize));
// Change size
Executor oldExecutor = threadPool.executor(threadPoolName);
settings =
clusterSettings.applySettings(
Settings.builder()
.put(settings)
.put("threadpool." + threadPoolName + ".size", "10")
.build());
expectedSize = getExpectedThreadPoolSize(nodeSettings, threadPoolName, 10);
// Make sure size values changed
assertThat(info(threadPool, threadPoolName).getMax(), equalTo(expectedSize));
assertThat(info(threadPool, threadPoolName).getMin(), equalTo(expectedSize));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getMaximumPoolSize(),
equalTo(expectedSize));
assertThat(
((EsThreadPoolExecutor) threadPool.executor(threadPoolName)).getCorePoolSize(),
equalTo(expectedSize));
// Make sure executor didn't change
assertEquals(
info(threadPool, threadPoolName).getThreadPoolType(), ThreadPool.ThreadPoolType.FIXED);
assertThat(threadPool.executor(threadPoolName), sameInstance(oldExecutor));
// Change queue capacity
clusterSettings.applySettings(
Settings.builder()
.put(settings)
.put("threadpool." + threadPoolName + ".queue", "500")
.build());
} finally {
terminateThreadPoolIfNeeded(threadPool);
}
}
@Test(timeout = 20000)
public void testUpdatingThreadPoolSettings() throws Exception {
internalCluster().startNodesAsync(2).get();
ThreadPool threadPool = internalCluster().getDataNodeInstance(ThreadPool.class);
// Check that settings are changed
assertThat(
((ThreadPoolExecutor) threadPool.executor(Names.SEARCH)).getKeepAliveTime(TimeUnit.MINUTES),
equalTo(5L));
client()
.admin()
.cluster()
.prepareUpdateSettings()
.setTransientSettings(settingsBuilder().put("threadpool.search.keep_alive", "10m").build())
.execute()
.actionGet();
assertThat(
((ThreadPoolExecutor) threadPool.executor(Names.SEARCH)).getKeepAliveTime(TimeUnit.MINUTES),
equalTo(10L));
// Make sure that threads continue executing when executor is replaced
final CyclicBarrier barrier = new CyclicBarrier(2);
Executor oldExecutor = threadPool.executor(Names.SEARCH);
threadPool
.executor(Names.SEARCH)
.execute(
new Runnable() {
@Override
public void run() {
try {
barrier.await();
} catch (InterruptedException ex) {
Thread.currentThread().interrupt();
} catch (BrokenBarrierException ex) {
//
}
}
});
client()
.admin()
.cluster()
.prepareUpdateSettings()
.setTransientSettings(settingsBuilder().put("threadpool.search.type", "fixed").build())
.execute()
.actionGet();
assertThat(threadPool.executor(Names.SEARCH), not(sameInstance(oldExecutor)));
assertThat(((ThreadPoolExecutor) oldExecutor).isShutdown(), equalTo(true));
assertThat(((ThreadPoolExecutor) oldExecutor).isTerminating(), equalTo(true));
assertThat(((ThreadPoolExecutor) oldExecutor).isTerminated(), equalTo(false));
barrier.await();
// Make sure that new thread executor is functional
threadPool
.executor(Names.SEARCH)
.execute(
new Runnable() {
@Override
public void run() {
try {
barrier.await();
} catch (InterruptedException ex) {
Thread.currentThread().interrupt();
} catch (BrokenBarrierException ex) {
//
}
}
});
client()
.admin()
.cluster()
.prepareUpdateSettings()
.setTransientSettings(settingsBuilder().put("threadpool.search.type", "fixed").build())
.execute()
.actionGet();
barrier.await();
Thread.sleep(200);
// Check that node info is correct
NodesInfoResponse nodesInfoResponse =
client().admin().cluster().prepareNodesInfo().all().execute().actionGet();
for (int i = 0; i < 2; i++) {
NodeInfo nodeInfo = nodesInfoResponse.getNodes()[i];
boolean found = false;
for (ThreadPool.Info info : nodeInfo.getThreadPool()) {
if (info.getName().equals(Names.SEARCH)) {
assertThat(info.getType(), equalTo("fixed"));
found = true;
break;
}
}
assertThat(found, equalTo(true));
Map<String, Object> poolMap =
getPoolSettingsThroughJson(nodeInfo.getThreadPool(), Names.SEARCH);
}
}
@Override
public TerminationHandle warmNewReaders(
final IndexShard indexShard,
IndexMetaData indexMetaData,
final WarmerContext context,
ThreadPool threadPool) {
final Loading defaultLoading =
Loading.parse(indexMetaData.settings().get(NORMS_LOADING_KEY), Loading.LAZY);
final MapperService mapperService = indexShard.mapperService();
final ObjectSet<String> warmUp = new ObjectHashSet<>();
for (DocumentMapper docMapper : mapperService.docMappers(false)) {
for (FieldMapper fieldMapper : docMapper.mappers()) {
final String indexName = fieldMapper.fieldType().names().indexName();
Loading normsLoading = fieldMapper.fieldType().normsLoading();
if (normsLoading == null) {
normsLoading = defaultLoading;
}
if (fieldMapper.fieldType().indexOptions() != IndexOptions.NONE
&& !fieldMapper.fieldType().omitNorms()
&& normsLoading == Loading.EAGER) {
warmUp.add(indexName);
}
}
}
final CountDownLatch latch = new CountDownLatch(1);
// Norms loading may be I/O intensive but is not CPU intensive, so we execute it in a single
// task
threadPool
.executor(executor())
.execute(
new Runnable() {
@Override
public void run() {
try {
for (ObjectCursor<String> stringObjectCursor : warmUp) {
final String indexName = stringObjectCursor.value;
final long start = System.nanoTime();
for (final LeafReaderContext ctx : context.searcher().reader().leaves()) {
final NumericDocValues values = ctx.reader().getNormValues(indexName);
if (values != null) {
values.get(0);
}
}
if (indexShard.warmerService().logger().isTraceEnabled()) {
indexShard
.warmerService()
.logger()
.trace(
"warmed norms for [{}], took [{}]",
indexName,
TimeValue.timeValueNanos(System.nanoTime() - start));
}
}
} catch (Throwable t) {
indexShard.warmerService().logger().warn("failed to warm-up norms", t);
} finally {
latch.countDown();
}
}
});
return new TerminationHandle() {
@Override
public void awaitTermination() throws InterruptedException {
latch.await();
}
};
}
public TerminationHandle internalWarm(
final IndexShard indexShard,
final IndexMetaData indexMetaData,
final IndicesWarmer.WarmerContext warmerContext,
ThreadPool threadPool,
final boolean top) {
IndexWarmersMetaData custom = indexMetaData.custom(IndexWarmersMetaData.TYPE);
if (custom == null) {
return TerminationHandle.NO_WAIT;
}
final Executor executor = threadPool.executor(executor());
final CountDownLatch latch = new CountDownLatch(custom.entries().size());
for (final IndexWarmersMetaData.Entry entry : custom.entries()) {
executor.execute(
new Runnable() {
@Override
public void run() {
SearchContext context = null;
try {
long now = System.nanoTime();
ShardSearchRequest request =
new ShardSearchLocalRequest(
indexShard.shardId(),
indexMetaData.numberOfShards(),
SearchType.QUERY_THEN_FETCH,
entry.source(),
entry.types(),
entry.queryCache());
context = createContext(request, warmerContext.searcher());
// if we use sort, we need to do query to sort on it and load relevant field data
// if not, we might as well set size=0 (and cache if needed)
if (context.sort() == null) {
context.size(0);
}
boolean canCache = indicesQueryCache.canCache(request, context);
// early terminate when we can cache, since we can only do proper caching on top
// level searcher
// also, if we can't cache, and its top, we don't need to execute it, since we
// already did when its not top
if (canCache != top) {
return;
}
loadOrExecuteQueryPhase(request, context, queryPhase);
long took = System.nanoTime() - now;
if (indexShard.warmerService().logger().isTraceEnabled()) {
indexShard
.warmerService()
.logger()
.trace(
"warmed [{}], took [{}]", entry.name(), TimeValue.timeValueNanos(took));
}
} catch (Throwable t) {
indexShard.warmerService().logger().warn("warmer [{}] failed", t, entry.name());
} finally {
try {
if (context != null) {
freeContext(context.id());
cleanContext(context);
}
} finally {
latch.countDown();
}
}
}
});
}
return new TerminationHandle() {
@Override
public void awaitTermination() throws InterruptedException {
latch.await();
}
};
}
@Override
public TerminationHandle warmTopReader(
final IndexShard indexShard,
IndexMetaData indexMetaData,
final WarmerContext context,
ThreadPool threadPool) {
final MapperService mapperService = indexShard.mapperService();
final Map<String, MappedFieldType> warmUpGlobalOrdinals = new HashMap<>();
for (DocumentMapper docMapper : mapperService.docMappers(false)) {
for (FieldMapper fieldMapper : docMapper.mappers()) {
final FieldDataType fieldDataType = fieldMapper.fieldType().fieldDataType();
if (fieldDataType == null) {
continue;
}
if (fieldDataType.getLoading() != Loading.EAGER_GLOBAL_ORDINALS) {
continue;
}
final String indexName = fieldMapper.fieldType().names().indexName();
if (warmUpGlobalOrdinals.containsKey(indexName)) {
continue;
}
warmUpGlobalOrdinals.put(indexName, fieldMapper.fieldType());
}
}
final IndexFieldDataService indexFieldDataService = indexShard.indexFieldDataService();
final Executor executor = threadPool.executor(executor());
final CountDownLatch latch = new CountDownLatch(warmUpGlobalOrdinals.size());
for (final MappedFieldType fieldType : warmUpGlobalOrdinals.values()) {
executor.execute(
new Runnable() {
@Override
public void run() {
try {
final long start = System.nanoTime();
IndexFieldData.Global ifd = indexFieldDataService.getForField(fieldType);
ifd.loadGlobal(context.reader());
if (indexShard.warmerService().logger().isTraceEnabled()) {
indexShard
.warmerService()
.logger()
.trace(
"warmed global ordinals for [{}], took [{}]",
fieldType.names().fullName(),
TimeValue.timeValueNanos(System.nanoTime() - start));
}
} catch (Throwable t) {
indexShard
.warmerService()
.logger()
.warn(
"failed to warm-up global ordinals for [{}]",
t,
fieldType.names().fullName());
} finally {
latch.countDown();
}
}
});
}
return new TerminationHandle() {
@Override
public void awaitTermination() throws InterruptedException {
latch.await();
}
};
}
private void handleRequest(
StreamInput stream,
long requestId,
int messageLengthBytes,
LocalTransport sourceTransport,
Version version)
throws Exception {
stream = new NamedWriteableAwareStreamInput(stream, namedWriteableRegistry);
final String action = stream.readString();
transportServiceAdapter.onRequestReceived(requestId, action);
inFlightRequestsBreaker()
.addEstimateBytesAndMaybeBreak(messageLengthBytes, "<transport_request>");
final LocalTransportChannel transportChannel =
new LocalTransportChannel(
this,
transportServiceAdapter,
sourceTransport,
action,
requestId,
version,
messageLengthBytes);
try {
final RequestHandlerRegistry reg = transportServiceAdapter.getRequestHandler(action);
if (reg == null) {
throw new ActionNotFoundTransportException("Action [" + action + "] not found");
}
final TransportRequest request = reg.newRequest();
request.remoteAddress(sourceTransport.boundAddress.publishAddress());
request.readFrom(stream);
if (ThreadPool.Names.SAME.equals(reg.getExecutor())) {
//noinspection unchecked
reg.processMessageReceived(request, transportChannel);
} else {
threadPool
.executor(reg.getExecutor())
.execute(
new AbstractRunnable() {
@Override
protected void doRun() throws Exception {
//noinspection unchecked
reg.processMessageReceived(request, transportChannel);
}
@Override
public boolean isForceExecution() {
return reg.isForceExecution();
}
@Override
public void onFailure(Throwable e) {
if (lifecycleState() == Lifecycle.State.STARTED) {
// we can only send a response transport is started....
try {
transportChannel.sendResponse(e);
} catch (Throwable e1) {
logger.warn(
"Failed to send error message back to client for action [{}]",
e1,
action);
logger.warn("Actual Exception", e);
}
}
}
});
}
} catch (Throwable e) {
try {
transportChannel.sendResponse(e);
} catch (Throwable e1) {
logger.warn("Failed to send error message back to client for action [{}]", e, action);
logger.warn("Actual Exception", e1);
}
}
}