pyr / net Goto Github PK
View Code? Open in Web Editor NEWthe netty clojure companion
Home Page: http://pyr.github.io/net
the netty clojure companion
Home Page: http://pyr.github.io/net
Recent code relies on core.async
's executor for a number of things and the need for a specific executor to be provided with the config could now be forfeited.
The two remaining operations done on the provided executor are now:
get-response
whose sole blocking operation is to call the provided ring-handler
Because of the (try (finally ))
in response-handler
client.clj
Apr 27, 2018 8:25:00 AM io.netty.channel.AbstractChannelHandlerContext invokeExceptionCaught
WARNING: An exception 'java.lang.IllegalArgumentException: No implementation of method: :take! of protocol: #'clojure.core.async.impl.protocol
s/ReadPort found for class: nil' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handli
ng the following exception:
java.lang.IllegalArgumentException: No implementation of method: :as-buffer of protocol: #'net.ty.buffer/Bufferizable found for class: io.nett
y.handler.codec.http.DefaultHttpResponse
#error {
:cause Only supported on Linux
:via
[{:type clojure.lang.Compiler$CompilerException
:message java.lang.UnsatisfiedLinkError: failed to load the required native library, compiling:(core.clj:32:10)
:at [clojure.lang.Compiler$InvokeExpr eval Compiler.java 3700]}
{:type java.lang.UnsatisfiedLinkError
:message failed to load the required native library
:at [io.netty.channel.epoll.Epoll ensureAvailability Epoll.java 88]}
{:type java.lang.ExceptionInInitializerError
:message nil
:at [io.netty.channel.epoll.Epoll Epoll.java 39]}
{:type java.lang.IllegalStateException
:message Only supported on Linux
:at [io.netty.channel.epoll.Native loadNativeLibrary Native.java 177]}]
:trace
[[io.netty.channel.epoll.Native loadNativeLibrary Native.java 177]
[io.netty.channel.epoll.Native Native.java 61]
[io.netty.channel.epoll.Epoll Epoll.java 39]
[io.netty.channel.epoll.EpollEventLoop EpollEventLoop.java 56]
[io.netty.channel.epoll.EpollEventLoopGroup newChild EpollEventLoopGroup.java 134]
[io.netty.channel.epoll.EpollEventLoopGroup newChild EpollEventLoopGroup.java 35]
[io.netty.util.concurrent.MultithreadEventExecutorGroup MultithreadEventExecutorGroup.java 84]
[io.netty.util.concurrent.MultithreadEventExecutorGroup MultithreadEventExecutorGroup.java 58]
[io.netty.util.concurrent.MultithreadEventExecutorGroup MultithreadEventExecutorGroup.java 47]
[io.netty.channel.MultithreadEventLoopGroup MultithreadEventLoopGroup.java 59]
[io.netty.channel.epoll.EpollEventLoopGroup EpollEventLoopGroup.java 104]
[io.netty.channel.epoll.EpollEventLoopGroup EpollEventLoopGroup.java 91]
[io.netty.channel.epoll.EpollEventLoopGroup EpollEventLoopGroup.java 68]
[io.netty.channel.epoll.EpollEventLoopGroup EpollEventLoopGroup.java 52]
[io.netty.channel.epoll.EpollEventLoopGroup EpollEventLoopGroup.java 45]
[net.ty.bootstrap$epoll_event_loop_group invokeStatic bootstrap.clj 79]
Using Epoll on the server initially throws for a protocol problem. Once that's fixed (PR #16) I get
io.netty.channel.AbstractChannel$AbstractUnsafe closeForcibly
WARNING: Failed to close a channel.
java.lang.IllegalStateException: channel not registered to an event loop
at io.netty.channel.AbstractChannel.eventLoop(AbstractChannel.java:158)
at io.netty.channel.epoll.AbstractEpollChannel.doDeregister(AbstractEpollChannel.java:134)
at io.netty.channel.epoll.AbstractEpollChannel.doClose(AbstractEpollChannel.java:111)
at io.netty.channel.AbstractChannel$AbstractUnsafe.closeForcibly(AbstractChannel.java:703)
at io.netty.bootstrap.AbstractBootstrap.initAndRegister(AbstractBootstrap.java:337)
at io.netty.bootstrap.AbstractBootstrap.doBind(AbstractBootstrap.java:283)
at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:279)
at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:261)
at net.ty.bootstrap$bind_BANG_.invokeStatic(bootstrap.clj:125)
at net.ty.bootstrap$bind_BANG_.invoke(bootstrap.clj:122)
at net.tcp$server.invokeStatic(tcp.clj:21)
at net.tcp$server.invoke(tcp.clj:16)
Here's my server call (which worked with some patches, merged in beta4, before the protocols)
(tcp/server {:handler (pipeline)
:group (EpollEventLoopGroup.)
:channel EpollServerSocketChannel}
"localhost" 50000)
Everything works fine without Epoll.
In net.tcp/server
the returned function doesn't terminate client connections. Am I misunderstanding how this should work or what it should do (I've never used Netty before finding this project)?
To duplicate:
Is there a measured need to avoid reflection? Several things break when type hints are applied (channel/channel, write! and write-and-flush! no longer working on groups, etc.)
I'm trying to figure out how to use the http.client library. Is there a way to get a string output with a request?
(require 'net.http.client :as client)
(def bs (async/<!! (:body (client/request {:request-method :get :uri "http://www.bing.com"}))))
(slurp (binary/input-stream (.nioBuffer bs)))
=> ""
Hi. Tuned some perf tests (Aleph, Immutant) for https://www.techempower.com/benchmarks/ and was hinted by @mpenet that Net would be interesting too. The perf in my test seems really bad, so I guess I'm doing something wrong.
➜ net git:(net) wrk -t2 -c100 -d2s http://localhost:8080/json
Running 2s test @ http://localhost:8080/json
2 threads and 100 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.14ms 1.54ms 47.88ms 99.16%
Req/Sec 46.07k 4.50k 53.70k 88.10%
192395 requests in 2.10s, 28.07MB read
Requests/sec: 91521.48
Transfer/sec: 13.35MB
➜ net git:(net) wrk -t2 -c100 -d2s http://localhost:8080/json
Running 2s test @ http://localhost:8080/json
2 threads and 100 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 7.32ms 4.16ms 15.90ms 59.93%
Req/Sec 3.43k 1.69k 6.31k 72.73%
7551 requests in 2.03s, 575.17KB read
Socket errors: connect 0, read 7726, write 4, timeout 0
Requests/sec: 3712.82
Transfer/sec: 282.81KB
what am I doing wrong?
How to reproduce it
curl -X "A : B" http://localhost:32415
Result
it hangs.
Expected result
sends a 400
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.