throttler | Load balancer between nodes | Load Balancing library

 by   Orangesoft-Development PHP Version: 1.0.7 License: MIT

kandi X-RAY | throttler Summary

kandi X-RAY | throttler Summary

throttler is a PHP library typically used in Networking, Load Balancing, Nodejs applications. throttler has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Throttler is the load balancer between nodes.
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            kandi-support Support

              throttler has a low active ecosystem.
              It has 11 star(s) with 0 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              throttler has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of throttler is 1.0.7

            kandi-Quality Quality

              throttler has no bugs reported.

            kandi-Security Security

              throttler has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              throttler is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              throttler releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed throttler and discovered the below as its top functions. This is intended to give you an instant insight into throttler implemented functionality, and help decide if they suit your requirements.
            • Returns index of given collection .
            • Sorts a collection .
            • Calculates the difference between two numbers .
            • Pick a node from collection .
            • Balance the cluster .
            • Checks if the frequency of the frequency of the frequency of a random frequency .
            Get all kandi verified functions for this library.

            throttler Key Features

            No Key Features are available at this moment for throttler.

            throttler Examples and Code Snippets

            No Code Snippets are available at this moment for throttler.

            Community Discussions

            QUESTION

            Semaphore for limiting requests per second doesn't work
            Asked 2021-Jun-08 at 08:56

            I'm using Google Analytics and that service has limit of 10 concurrent requests. I had to limit my API somehow, so I decided to use a semaphore, but it seems it doesn't work. All requests are triggered simultaneously. I can't find the problem in my code.

            ...

            ANSWER

            Answered 2021-Jun-07 at 21:38

            All requests are triggered simultaneously.

            Let's take a look here

            Source https://stackoverflow.com/questions/67877657

            QUESTION

            Combining IAsyncEnumerator and executing them asynchronously
            Asked 2021-Apr-22 at 01:10

            The first function is designed to enable linq to execute lambda functions safely in parallel (even the async void ones).

            So you can do collection.AsParallel().ForAllASync(async x => await x.Action).

            The second function is designed to enable you to combine and execute multiple IAsyncEnumerables in parallel and return their results as quick as possible.

            I have the following code:

            ...

            ANSWER

            Answered 2021-Apr-22 at 01:10

            The type (IAsyncEnumerator, bool) is a shorthand of the ValueTuple, bool> type, which is a value type. This means that on assignement it's not passed by reference, and instead it's copied. So this lambda does not work as intended:

            Source https://stackoverflow.com/questions/67200209

            QUESTION

            IAsyncEnumerator.Current returns null when enumerators collection is not casted to a List
            Asked 2021-Apr-21 at 15:21

            The first function is designed to enable linq to execute lambda functions safely in parallel (even the async void ones).

            So you can do collection.AsParallel().ForAllASync(async x => await x.Action).

            The second function is designed to enable you to combine and execute multiple IAsyncEnumerables in parallel and return their results as quick as possible.

            I have the following code:

            ...

            ANSWER

            Answered 2021-Apr-21 at 15:21

            This is a classic case of deferred execution. Every time you invoke an evaluating method on a non-materialized IEnumerable<>, it does the work to materialize the IEnumerable. In this case that's re-invoking your selector and creating new instances of the tasks that await the GetAsyncEnumerator calls.

            With the call to .ToList() you materialize the IEnumerable. Without it, materialization occurs with with every call to .Any(), the call to ForAllAsync(), and at your foreach loop.

            The same behavior can be reproduced minimally like this:

            Source https://stackoverflow.com/questions/67198591

            QUESTION

            How to publish Nestjs api in Google App Engine?
            Asked 2021-Apr-18 at 08:05

            I'm trying to put my nestjs api into Google App Engine but I still have an error. I have created my google cloud project first with the google sdk, edited my code as follow:

            main.ts:

            ...

            ANSWER

            Answered 2021-Apr-15 at 23:22

            Take a look on this other post:

            nest Command not found

            It seems you need to install and use npm as:

            @nestjs/cli instead of just nest

            Source https://stackoverflow.com/questions/67111581

            QUESTION

            How to make older versions of clang happy with atomic's default exception specification
            Asked 2021-Mar-30 at 02:06

            I have a class that has a member variable that wraps a std time_point in an atomic. I'm having a hard time getting older compilers happy with it. I initially had issues with versions of GCC earlier than 10 accepting it. I addressed this via explicitly initializing it.

            I thought that made all the compilers happy. But once my code got into production, I faced an issue in the more thorough CI (in comparison to the PR CI) with older clang compilers. The project is Apache Traffic Server, so it is open sourced, if viewing it is interesting. Here is the code:

            https://github.com/apache/trafficserver/blob/master/include/tscore/Throttler.h#L117

            Here is a minimal example that demonstrates the problem:

            ...

            ANSWER

            Answered 2021-Mar-30 at 02:06

            As a workaround, you can make TimePoint a subclass (with a noexcept default constructor) instead of a typedef.

            Source https://stackoverflow.com/questions/66862690

            QUESTION

            Using SemaphoreSlim for divide execution for batches
            Asked 2021-Mar-23 at 15:41

            I am learning asynchronous programming from scratch and have to solve one problem. Application which I am developing has to download data in loop per ID (around 800 loop pass). Each Loop pass get 10 to 500 rows from database and generating one txt file with rows. I'd like to do this asynchronously. Of course do not want to generate 800 reports at same time (800 sql queries) but would like to divide it to some batches. I use SemaphoreSlim:

            ...

            ANSWER

            Answered 2021-Mar-23 at 15:07

            QUESTION

            Is there a way to limit the number of parallel Tasks globally in an ASP.NET Web API application?
            Asked 2021-Mar-03 at 17:44

            I have an ASP.NET 5 Web API application which contains a method that takes objects from a List and makes HTTP requests to a server, 5 at a time, until all requests have completed. This is accomplished using a SemaphoreSlim, a List(), and awaiting on Task.WhenAll(), similar to the example snippet below:

            ...

            ANSWER

            Answered 2021-Feb-26 at 20:34

            If I wanted to limit the total number of Tasks that are being executed at any given time to say 100, is it possible to accomplish this?

            What you are looking for is to limit the MaximumConcurrencyLevel of what's called the Task Scheduler. You can create your own task scheduler that regulates the MaximumCongruencyLevel of the tasks it manages. I would recommend implementing a queue-like object that tracks incoming requests and currently working requests and waits for the current requests to finish before consuming more. The below information may still be relevant.

            The task scheduler is in charge of how Tasks are prioritized, and in charge of tracking the tasks and ensuring that their work is completed, at least eventually.

            The way it does this is actually very similar to what you mentioned, in general the way the Task Scheduler handles tasks is in a FIFO (First in first out) model very similar to how a ConcurrentQueue works (at least starting in .NET 4).

            Would the framework automatically prevent too many tasks from being executed?

            By default the TaskScheduler that is created with most applications appears to default to a MaximumConcurrencyLevel of int.MaxValue. So theoretically yes.

            The fact that there practically is no limit to the amount of tasks(at least with the default TaskScheduler) might not be that big of a deal for your case scenario.

            Tasks are separated into two types, at least when it comes to how they are assigned to the available thread pools. They're separated into Local and Global queues.

            Without going too far into detail, the way it works is if a task creates other tasks, those new tasks are part of the parent tasks queue (a local queue). Tasks spawned by a parent task are limited to the parent's thread pool.(Unless the task scheduler takes it upon itself to move queues around)

            If a task isn't created by another task, it's a top-level task and is placed into the Global Queue. These would normally be assigned their own thread(if available) and if one isn't available it's treated in a FIFO model, as mentioned above, until it's work can be completed.

            This is important because although you can limit the amount of concurrency that happens with the TaskScheduler, it may not necessarily be important - if for say you have a top-level task that's marked as long running and is in-charge of processing your incoming requests. This would be helpful since all the tasks spawned by this top-level task will be part of that task's local queue and therefor won't spam all your available threads in your thread pool.

            Source https://stackoverflow.com/questions/66391377

            QUESTION

            Telegram Bot (Telegraf) stuck in infinite loop
            Asked 2021-Feb-27 at 20:43

            My function named status sending information about products that are stored in Firebase Realtime Database. When user ask my bot for status then Firebase function get data from DB and then send back Telegram message for every of product that the user is assigned. For some users this can take some time even 2 minutes.

            When 1st user asks bot for status and bot function run for the first time everything is fine.

            BUT when 2nd user ask for status during first call of bot function (when function still running for 1st user) first call run start over and after first call is done finally second call are handled.

            When 3rd user calls function when old calls are not finished, everything stacking on and finally everything loops until all calls of function are over. Because bot has almost 2000 active users this above problem runs into "infinite" loop because constantly some of users calls "status" for themselves.

            This situation causes that users getting almost infinite numbers of messages.

            I'm using JavaScript & Node 12 on Firebase.

            ...

            ANSWER

            Answered 2021-Feb-27 at 20:25

            OK Finally I found cause ^^

            I'm missed process.once in my code, because of that function was executed more than one time.

            Source https://stackoverflow.com/questions/66402394

            QUESTION

            Varying the time between each message using Scala throttler
            Asked 2021-Jan-30 at 16:34

            I'm learning Akka and have written below code to throttle the number of messages sent to the TradeAction actor. A max of 3 messages is sent ever second. Can the throttler be amended such that the time between each message is set ? For example, between message1 and message2 delay by 2 seconds, between message2 and message3 delay by 1 second.

            ...

            ANSWER

            Answered 2021-Jan-30 at 16:33

            You can accomplish this with delayWith, which allows a (potentially stateful) method to define how long to delay this element (without re-ordering elements), for example:

            Source https://stackoverflow.com/questions/65969576

            QUESTION

            How to start function at specific scroll position on page?
            Asked 2020-Sep-27 at 09:28

            I'm experimenting with the following code where images flip through in a canvas.

            If I put the canvas, let's say at the middle of my page, I was wondering if there's a way to only make the images flip through once the viewer gets to that specific section of the page.

            Right now, from the looks of it, the images start flipping through right at the top of the page, immediately when you scroll down. By the time you get to the middle of the page where the actual canvas is, the images have already finished flipping through, and it's stopped on the last frame.

            I assume I have to set the function to only trigger after the user scrolls to a specific number of pixels on the Y-axis? What's the best way to do so?

            Please see code below.

            Thanks!

            ...

            ANSWER

            Answered 2020-Sep-27 at 09:28

            You can actually start make the images flip through once the viewer gets to that specific section of the page by using The Intersection Observer API

            So you have to detect when your element in the the viewport, the canvas in this case.

            To do this you have multiple ways.

            By using Observer API

            Source https://stackoverflow.com/questions/64086716

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install throttler

            You can install the latest version via Composer:. This package requires PHP 7.2 or later.

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