Meaning only four work threads on two CPU cores, and four concurrent request will hold the 100% threads resource, no more request could be handled.
Whether my understanding about this correct?
Thanks
@Bean public ReactiveWebServerFactory reactiveWebServerFactory() { NettyReactiveWebServerFactory factory = new NettyReactiveWebServerFactory(); factory.addServerCustomizers(builder -> builder.loopResources(LoopResources.create("my-http", 16, true))); return factory; }
or from java argument
java -jar your-app.jar -Dreactor.ipc.netty.workerCount=16
The number that you got is the default one
(are you sure you are customizing the bean, i tend to use something like like :
@Override
public void customize(NettyReactiveWebServerFactory factory) {
// factory.addServerCustomizers(httpServer -> httpServer.wiretap(true));
super.customize(factory);
}
Hello, as you know io.netty.tryReflectionSetAccessible on Java 9+ is disabled by default and this makes Netty unable to do its tweaks and create direct buffers using its special way.
Is there any plan to find a workaround or any open discussion on OpenJDK mailing lists ?
Wouldn't it be better to set io.netty.tryReflectionSetAccessible=true by default or at least print a WARN log message that tells that is is better to turn on that switch ? Otherwise people that are moving from Java8 to Java 11 will suffer a performance drop without even knowing that Netty is working in this (bad) mode.
Is there any plan to find a workaround or any open discussion on OpenJDK mailing lists ?
Wouldn't it be better to set io.netty.tryReflectionSetAccessible=true by default or at least print a WARN log message that tells that is is better to turn on that switch ? Otherwise people that are moving from Java8 to Java 11 will suffer a performance drop without even knowing that Netty is working in this (bad) mode.
and people complained about warning logs etc before
that is why we switched
that said we already kind of work around this by using Unsafe ;)
we try hard
I'm running into a
NotSslRecordException when using TLS 1.2 or TLS 1.3. It works with TLS 1.1. I'm not sure whether this is a bug on my side or in netty. The issue is somewhat tricky to reproduce because it happens during Azure SQL Server SSL negotiation in the first receive phase.
would it be possible to check with wireshark ?
so not sure how long it will take me
"nioEventLoopGroup-3-2" #71 prio=10 os_prio=0 cpu=333.55ms elapsed=392.07s tid=0x00007fc3ee367800 nid=0x24b runnable [0x00007fc3b5be3000]
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPoll.wait(java.base@11.0.3/Native Method)
at sun.nio.ch.EPollSelectorImpl.doSelect(java.base@11.0.3/EPollSelectorImpl.java:120)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(java.base@11.0.3/SelectorImpl.java:124)
- locked <0x00000000e6f826b8> (a io.netty.channel.nio.SelectedSelectionKeySet)
- locked <0x00000000e6f6b048> (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(java.base@11.0.3/SelectorImpl.java:136)
at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:791)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:439)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
Locked ownable synchronizers:
- None
The test itself uses somefancy Spring/Spring Cloud features like
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ActiveProfiles("test")
@AutoConfigureWireMock(port = 0)
@Import(OAuth2TestConfiguration::class)
internal class FeederClientTest(There's some business logic involved which is starting a parallel flux
fun evaluateVariations(variations: Set<Variation>, rules: Set<Rule>): Flux<Variation> = Flux.fromIterable(variations)
.parallel()
.runOn(Schedulers.parallel())
.flatMap { evaluateVariation(it, rules) }
.sequential()and if we remove the parallel part it's running fine on jenkins as well. Any ideas?
The rest of our discussion can be seen in https://gitter.im/reactor/reactor
Hi , i am using netty as part of spring webflux application. We are facing an issue with netty, connectins are not getting closed with clients. when I do a ‘netstat’ , can see lot connections are there with established state. Same application tested with tomcat.. no connection issue there. Please help.
Hi, anybody knows how to get access to the ChanelId in java 11?
Maven says following:
Maven says following:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project server: Compilation failure
[ERROR] /Application.java:[138,109] io.netty.channel.Channel.id() in package io.netty.channel is not accessible
[ERROR] (package io.netty.channel is declared in the unnamed module, but module io.netty.channel does not read it)
Hi! I'm trying to use the tc-native library to dynamically load the FIPS compliant OpenSSL library inside Finagle. When I make the call to
io.netty.internal.tcnative.SSL.fipsModeSet(1)
I'm getting an unsatisfied link error
java.lang.UnsatisfiedLinkError: io.netty.internal.tcnative.NativeStaticallyReferencedJniMethods.sslOpCipherServerPreference()I
at io.netty.internal.tcnative.NativeStaticallyReferencedJniMethods.sslOpCipherServerPreference(Native Method)
at io.netty.internal.tcnative.SSL.<clinit>(SSL.java:67)I'm currently running on a MacBook but the ultimate location for this is Linux. Any help on where to look to solve this is appreciated.
Hi, can anybody help me. I am trying to provide a custom Logging handler to print request and response details.
public class CustomLogger extends LoggingHandler {
public CustomLogger(Class<?> clazz) {
super(clazz);
}
@Override
protected String format(ChannelHandlerContext ctx, String event, Object arg) {
if (arg instanceof ByteBuf) {
ByteBuf msg = (ByteBuf) arg;
return decode(msg, msg.readerIndex(), msg.readableBytes(), defaultCharset());
}
return super.format(ctx, event, arg);
}
private String decode(ByteBuf src, int readerIndex, int len, Charset charset) {
if (len != 0) {
byte[] array;
int offset;
if (src.hasArray()) {
array = src.array();
offset = src.arrayOffset() + readerIndex;
} else {
array = allocateUninitializedArray(max(len, 1024));
offset = 0;
src.getBytes(readerIndex, array, 0, len);
}
return new String(array, offset, len, charset);
}
return "";
}But this does not print response content correctly