Executor cannot be shutdown from the Thread acquired from itself

Executor cannot be shutdown from the Thread acquired from itself - In netty you are not allowed to shutdown the Executor from within an IO-Thread ( as the exception is telling you already ;)), this is because you

ClientBootstrap releaseExternalResources() throws - "An Executor cannot be shut down from the thread " + "acquired from itself. Please make sure you from a thread managed by an executor which, in itself, is managed by is trying to shutdown the executor which won't return until the thread that has called releaseExternalResources returns (which it can't).

Shutting down server gracefully · Issue #365 · ztellman/aleph · GitHub - kachayev referenced this issue on Mar 14, 2018. Merged. Delay on-close callback when shutting down server #369 shutdownGracefully affects the executor, but not the behavior of the server itself. .. Switch to use thread factory from manifold.executor #426 You can't perform that action at this time.

Shutting down the Executor in (Nio|Epoll)EventLoopGroup · Issue - The discussion in #2832 got me thinking: Shutting down an not affect the DefaultExecutorFactory , as a ForkJoinPool automatically shuts itself down . PoolThreadCache - Freed 36 thread-local buffer(s) from thread: @ jakobbuchgraber - I have not been able to replicate the OOM so I can't be sure.

java - ClientBootstrap releaseExternalResources() throws - "An Executor cannot be shut down from the thread " + "acquired from itself. Please make sure you are " + "not calling releaseExternalResources() from an " + "I/O

Periodic Executors - Thus, although the client calls close() on its kill-cursors thread, and the threads, the close() method cannot actually call wake() on the executor, in the Python interpreter's shutdown sequence, so we try to join threads before then. Furthermore, it uses a weakref callback to terminate itself soon after the topology is freed.

Multithreading and Concurrency - Java Programming Tutorial - 7.2 Interface java.util.concurrent.Executor 7.3 Interface java.util.concurrent. A thread by itself is not a program because it cannot run on its own. . invokeLater () , starts 3 threads: "AWT-Windows" (daemon thread), "AWT-Shutdown" and .. In this case, the class lock (instead of the instance lock) needs to be acquired in

threading — Thread-based parallelism - Daemon threads are abruptly stopped at shutdown. . ProcessPoolExecutor . of seconds specified by timeout and as long as the lock cannot be acquired.

ExecutorService (Java Platform SE 7 ) - Returns true if this executor has been shut down. manager exists and shutting down this ExecutorService may manipulate threads that the caller is not are null: RejectedExecutionException - if any task cannot be scheduled for execution

ScheduledThreadPoolExecutor (Java Platform SE 8 ) - Initiates an orderly shutdown in which previously submitted tasks are executed, Parameters: corePoolSize - the number of threads to keep in the pool, even if they . will access the zero-delayed ScheduledFuture , not the command itself. task cannot be accepted for execution because the executor has been shut down

clojure aleph ssl

ztellman/aleph: asynchronous communication for clojure - Aleph exposes data from the network as a Manifold stream, which can easily be transformed into a java.io.InputStream, core.async channel, Clojure sequence, or many other byte representations. It exposes simple default wrappers for HTTP, TCP, and UDP, but allows access to full

TLS client certificates · Issue #204 · ztellman/aleph · GitHub - SslContexts aren't a super great API, so I could see how that's not the primary Later (or a different library perhaps) could worry about giving that a nice Clojure API. . I'd also be willing to consider an aleph.ssl namespace.

Aleph 0.4.7-alpha5 - aleph.http.client-middleware. This middleware is adapted from clj-http, whose license is amenable to this sort of copy/pastery. Public variables and functions:.

aleph.http documentation - SslContext` object, only required if a custom context is required | `local-address` | an optional `java.net.SocketAddress` describing which local interface should

HTTPS requests with client certificates in Clojure - Fortunately, Netty's API is at least marginally friendlier than the one in javax.net. ssl . Unfortunately, there's no less-awful-ssl for Aleph. Plus

aleph.http.server - aleph: a framework for asynchronous communication Documentation for aleph Clojure only. (handle-request ctx ssl? handler rejected-handler executor req

Hottest 'aleph' Answers - Aleph/Clojure - How to insert custom headers in the web socket upgrade the cert changes remove the existing SSL handler from the pipeline and replace it

Newest 'aleph' Questions - Clojure: Connecting to a TLS enable docker daemon using aleph · ssl clojure docker netty aleph · Mar 6 '16 at 7:11 BHBH. 1. 1

Catacumba - What is the difference between catacumba and Aleph? What is .. Catacumba server can be configured to use TLS (commonly known as SSL).

Re: WSS Clojure client - New nginx does websocket proxying, so you could terminate SSL there and use Aleph for a plain HTTP websocket server in Clojure.

aleph http

ztellman/aleph: asynchronous communication for clojure - It exposes simple default wrappers for HTTP, TCP, and UDP, but allows access to full performance and flexibility of the underlying Netty library. [aleph "0.4.6"]

aleph - Aleph is a library for client and server network programming, built on top of Netty. It provides implementations of the HTTP, TCP, and UDP protocols, using a

aleph.http documentation - HTTP, SOCKS4 and SOCKS5 proxies are supported. Note, that when using proxy `connections-per-host` configuration is still applied to the target host

client - HTTP. Aleph follows the Ring spec fully, and can be a drop-in replacement for any existing Ring-compliant server. However, it also allows for the handler

aleph.examples -- Marginalia - (http-connection remote-address ssl? {:keys [local-address raw-stream? bootstrap-transform name-resolver keep-alive? insecure? ssl-context

http.clj in aleph - For HTTP, Aleph implements a superset of the Ring spec, which means it can be used as a drop-in replacement for pretty much any other Clojure webserver.

aleph.http.multipart - (ns aleph.http (:refer-clojure :exclude [get]) (:require [clojure.string :as str] [ manifold.deferred :as d] [manifold.executor :as executor] [aleph.flow :as flow]

Aleph on JSTOR - aleph: a framework for asynchronous communication Documentation for aleph encode-part; encode-request; http-data->map; mime-type-descriptor; part-

[duct/server.http.aleph "0.1.2"] - Aleph explores the interface between Judaism and science and studies the interactions between science and Judaism throughout history. Aleph features

python 3 threading

threading — Thread-based parallelism - Return the current Thread object, corresponding to the caller's thread of control. If the caller's thread of control was not created through the threading module,

An Intro to Threading in Python – Real Python - A thread is a separate flow of execution. This means that your program will have two things happening at once. But for most Python 3 implementations the different threads do not actually execute at the same time: they merely appear to.

Python 3 Multithreaded Programming - Python 3 - Multithreaded Programming. Multiple threads within a process share the same data space with the main thread and can therefore share information or communicate with each other more easily than if they were separate processes.

Python Advanced: Threads and Threading - Users have been encouraged to use the threading module instead. So,in Python 3 the module "thread" is not available anymore. But that's not really true: It has

threading - python3 threading_names.py worker Starting Thread-1 Starting my_service Starting worker Exiting Thread-1 Exiting my_service Exiting.

threading – Manage concurrent threads - The integer argument is now included in the message printed by each thread: $ python -u threading_simpleargs.py Worker: 0 Worker: 1 Worker: 2 Worker: 3

Python Thread Tutorial For Beginners 3 - The threading module is used for working with threads in Python. The CPython implementation has a Global Interpreter Lock (GIL) which allows

Python 3 Programming Tutorial - Threading module - In this Python Thread Tutorial video we will see how to use threading module with python 3

threading tutorial - In this Python 3 programming tutorial video, we cover the threading module that is a part of

Multiprocessing and multithreading in Python 3 - Along with the video above, here is some explained sample code for threading in Python 3

python threading example stackoverflow

How to use threading in Python? - Here's a simple example: you need to try a few alternative URLs and return the contents of the first one to respond. import Queue import threading import urllib2

Simplistic Python Thread example - import time from threading import Thread def myfunc(i): print "sleeping 5 sec from thread %d" % i time.sleep(5) print "finished sleeping from

Using Python Threading and Returning Multiple Results (Tutorial - Using Threads for a low number of tasks Threading in Python is simple. It allows you to manage concurrent threads doing work at the same time. The library is called “threading“, you create “Thread” objects, and they run target functions for you.

Intro to Threads and Processes in Python - Brendan Fortuner - Beginner's guide to parallel programming. Brendan It downloads a list of URLs one at a time using a single thread. . stackoverflow.com

Multithreading VS Multiprocessing in Python - and I was constantly reading articles and stackoverflow threads in order to I only used this example to show that some explanations about Multithreading with threading or multiprocessing.dummy or concurrent.futures …

The Basics of Python Multithreading and Queues - It's the bare-bones concepts of Queuing and Threading in Python. Here's an example of a simple program that uses Queues: from Queue .. See http:// stackoverflow.com/questions/190010/daemon-threads-explanation and

python - should give you a line number of where it is having an indent error. The issue with your threading is that you dont have a way to stop the thread.

Concurrent Programming in Python is not what you think it is. - Concurrent programming is not equivalent to parallel execution, despite the fact that these Why multi-threading in Python might not be what you want? of Python, you can read more about it in this StackOverflow thread.

Example for stackoverflow.com question http://stackoverflow.com - Author: Baruch Sterin <baruchs@gmail.com>. #include <Python.h>. #include < thread>. #include <chrono>. // initialize and clean up python. struct initialize.

Speed Up Your Algorithms Part 3 - Introduction to parallel programming in Python . But, you can still use multi- threading parallel(y) if your task is not CPU bound. That is you can

clojure messaging

ztellman/aleph: asynchronous communication for clojure - The body of the response may also be a Manifold stream, where each message from the stream is sent as a chunk, allowing for precise control over streamed

ptaoussanis/sente: Realtime web comms for Clojure/Script - clojure clojurescript epl taoensso websockets http-kit ajax async edn transit immutant. Even small contributions can add up + make a big difference to help sustain my time writing, maintaining, and supporting Sente and other Clojure/Script libraries. Sente is a small client+server

Mastering Concurrent Processes with core.async - Clojure's core.async library allows you to create multiple independent processes within You can put messages on a channel and take messages off a channel.

Core.async pub/sub messaging in Clojure web application - I'm thinking of using core.async publish / subscribe on the server side as a simple message bus to, well, send messages around. There's a

immutant.messaging - Returns the JMS message object that was published. The following options are supported [default]: :encoding :clojure :json or :text [:clojure] :priority 0-9 or :low

The Clojure Toolbox - A categorised directory of libraries and tools for Clojure. Android. clojure- android clj .. Message Queues. Bandalore clj; beanstalk clj; Carmine clj; clamq clj

Bunnicula, asynchronous messaging with RabbitMQ for Clojure - Given our requirements, it was obvious that we would have to use some kind of message queue. There are so many to choose from - RabbitMQ

Agents and Asynchronous Actions - Also, because the set of functions is open, the set of actions supported by an Agent is also open, a sharp contrast to pattern matching message handling loops

Working with RabbitMQ exchanges and publishing messages from - Langohr, an idiomatic Clojure RabbitMQ client | Clojure AMQP 0.9.1 client. Unlike some other messaging middleware products and protocols, in AMQP,

Working with RabbitMQ queues and consumers from Clojure with - Consumer applications — applications that receive and process messages ‚ may occasionally fail to process

clojure async sockets

bguthrie/async-sockets: A Clojure library for working with - async-sockets. A Clojure library for opening and working with sockets asynchronously.

tonsky/net.async: Network commucations with clojure.core - Stable interface: chans stay valid to use no matter what socket/network conditions are. net.async will handle underlying resource/socket management for you.

[com.hellonico.gearswithingears/async-sockets "0.1.0"] - com.hellonico.gearswithingears/async-sockets "0.1.0"] A Clojure library for working with sockets using core.async channels.

Mastering Concurrent Processes with core.async - for the next event, whether it's a keystroke, a timeout, or the arrival of data on a socket. Clojure's core.async library allows you to create multiple independent

[ANN] async-sockets - Please note that if you use core.async with java.nio, you need to make sure backpressure is properly propagated (this happens automatically

Get going with core.async: A minimal server - Well, we now have a minimal client, but what about the server? Currently The server for the tutorial is a fairly standard Clojure web application built using Ring,

Clojure concurrency and blocking with core.async - The core.async library comes with many high-level features like . especially if by "I/O device" we mean a web server located half-way across

Things I Wish I Knew About Core Async in Clojure // Dan's Thoughts - Core.Async is a library with a lot of dangerous edge cases, and if you don't Additionally, we'll also run out of socket descriptors because of

How do I do network programming in Clojure? : Clojure - Obviously this either involves some multithreaded or async My first thought was that maybe clojure.core.server would be useful, but looking

Home - Event-driven I/O HTTP Client & Server for Clojure: small, efficient, Ring- compatible. Asynchronous and websocket supported.