round-robin | Round Robin for Laravel | Web Framework library
kandi X-RAY | round-robin Summary
kandi X-RAY | round-robin Summary
Round Robin for Laravel 5
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Top functions reviewed by kandi - BETA
- Rotate the teams .
- Build the schedule
- Make a round
- Make the team schedule .
- Get the values for a given team .
- Get all players .
- Register the round .
- Get the providers .
- Bootstrap the application
- Get the facade accessor .
round-robin Key Features
round-robin Examples and Code Snippets
Lines of Code : 14
License : No License
Copy$teams = ['Arsenal', 'Atlético de Madrid', 'Borussia', 'Barcelona','Liverpool', 'Bayer 04', 'Real Madrid'];
$schedule = new RoundRobin($teams)->make();
// or with 'from' static method
$schedule = RoundRobin::from($teams)->make();
$teams = ['Ar "marcelotk15/round-robin": "0.1.*"
Laravel\RoundRobin\RoundRobinServiceProvider::class,
'RoundRobin' => Laravel\RoundRobin\RoundRobinFacade::class,
use Laravel\RoundRobin\RoundRobin;
def round_robin(
self, ready_queue: deque[Process], time_slice: int
) -> tuple[deque[Process], deque[Process]]:
"""
RR(Round Robin)
RR will be applied to MLFQ's all queues except last queue
All processes public void interleavingStreamsUsingRoundRobin() {
Stream streamA = Stream.of("Peter", "Paul", "Mary");
Stream streamB = Stream.of("A", "B", "C", "D", "E");
Stream streamC = Stream.of("foo", "bar", "baz", "xyzzy");
St Community Discussions
Trending Discussions on round-robin
QUESTION
Scikit-learn's Iterative Imputer can impute missing values in a round-robin fashion. To evaluate its performance against other conventional regressors, it is possible to build a simple pipeline and get scoring metrics from cross_val_score. The issue is that Iterative Imputer does not have a 'predict' method as per error:
...ANSWER
Answered 2021-May-09 at 06:33cross_val_score needs pipeline with model at the end (which has predict)
QUESTION
Considering the following data structure, I'm looking to use jq to return each document based on the following criteria:
- Return all documents whose
membersarray contains a keysubPath - Return all documents whose
membersarray does NOT contain a keysubPath - Return all documents whose
membersarray is empty
ANSWER
Answered 2021-May-08 at 05:37For #1 and #2, it's not clear to me whether you want the first item satisfying the condition, or the collection of distinct items that satisfy the condition.
For the first item, you could use first:
QUESTION
How do I make Celery send a task to the right worker when using send_task?
For instance, given the following services: service_add.py
...ANSWER
Answered 2021-May-02 at 05:43If you're using two different apps service_add / service_sub only to achieve the routing of tasks to a dedicated worker, I would like to suggest another solution. If that's not the case and you still need two (or more apps) I would suggest better encapsulate the broker like amqp://localhost:5672/add_vhost & backend: redis://localhost/1. Having a dedicate vhost in rabbitMQ and a dedicated database id (1) in Redis might do the trick.
Having said that, I think that the right solution in such a case is using the same celery application (not splitting into two application) and use router:
task_routes = {'tasks.service_add': {'queue': 'add'}, 'tasks.service_sub': {'queue': 'sub'}}
add it to the configuration:
QUESTION
I have an application that uses spring integration to poll files from the SFTP and process them. The structure of the sftp will be always similar, but new folders are going to be created. Example:
...ANSWER
Answered 2021-Apr-22 at 17:47See Inbound Channel Adapters: Polling Multiple Servers and Directories.
Use a RotatingServerAdvice with a custom RotationPolicy.
Or use an outbound gateway instead, with a recursive MGET command.
QUESTION
Let's say that I have 3 ActiveMQ Artemis brokers in one cluster:
- Broker_01
- Broker_02
- Broker_03
In a given point of time I have a number of consumers for each broker:
- Broker_01 has 50 consumers
- Broker_02 has 10 consumers
- Broker_03 has 10 consumers
Let's assume at this given point of time there are 70 messages to be sent to a queue in this cluster.
We are expecting load balancing done by the cluster so that Broker_01 would receive 50 messages, Broker_02 10 messages, and Broker_03 also 10 messages, but currently we are experiencing that the 70 messages are distributed randomly through all the 3 brokers.
Is there any configuration I can do to distribute the messages based on the number of consumers in each broker?
I just read the documentation. So, as far as I understood, ActiveMQ does load balancing, based on round robin, if we configure cluster connection. Our broker.xml looks like this:
...ANSWER
Answered 2021-Apr-19 at 15:33There is no out-of-the-box way for the producer to know how many consumers are on each broker and then send messages to those messages to those brokers accordingly.
It is possible for you to implement your own ConnectionLoadBalancingPolicy. However, in order to determine how many consumers exist on the queue load-balancing policy implementation would need to know the URL of all the brokers in the cluster as well as name of the queue to which you're sending messages, and there's no way to supply that information. The ConnectionLoadBalancingPolicy interface is very simple.
I would encourage you to revisit your need for a 3-node cluster in the first place if each node is going to have so few messages on it. A single broker can handle a throughput of millions of messages in certain use-cases. If each node is dealing with less than 50 messages then you probably don't need a cluster at all.
QUESTION
I'm a beginner to embedded software. I try to build my simple real time operating system kernel using C code with the ARM Cortex-M4F Based MCU Tiva C LaunchPad and run in the IAR Embedded Workbench IDE.
The system can support 3 tasks, task A blinks the red LED, task B blinks the blue LED and task C blinks the green LED. The tasks are scheduled in a round-robin way. It uses SysTick to trigger PendSV once per second for context switching.
The following code works fine to blink the LEDs as expected.
...ANSWER
Answered 2021-Apr-14 at 10:24This is, fittingly enough, definitely a case of stack overflow. The debug message you're getting is somewhat bogus; the valid stack range given (0x20000330 to 0x20000B30) is probably the configured range for the main stack, which you're not using (all of your tasks are using stacks from your OSStack array).
You've allocated 64 bytes (0x40) for each task's stack. The stack frame you've defined for a task that's suspended is already 64 bytes in size, and that's before it's done anything. If a task is running, and has used any stack space for anything whatsoever, then when it is suspended it will use an additional 64 bytes on top of whatever it is using at the time. This pretty much guarantees you a stack overflow on any nontrivial task, and in this case as soon as you introduce the function call into task_A() you'll be forcing it to use the stack.
The immediate fix is simple: just increase the value of the MAX_TASK_SIZE constant.
Incidentally, the Cortex-M4 has dual stack capability, so you can configure thread-mode code to use a different stack from handler-mode code. This can simplify analysis of stack usage and reduce the required size of task stacks, because interrupt service routines will not use the task stacks for their local storage. Your context switch can remain almost the same, but must read and write PSP to obtain and modify the task stack pointers rather than just using sp.
QUESTION
I am having trouble using json_query to search the below data structure from which I want to create two separate lists.
List 1 should contain the name key from each dictionary for entries whose members list contains the subPath key AND whose value contains a specific value.
List 2 should contain the name key from each dictionary for entries whose members list does NOT contain the subPath key and whose name contains a specific value.
The closest I'm able to get thus far is finding those dictionaries whose members dictionary has the subPath key:
ANSWER
Answered 2021-Feb-16 at 05:56Q: "Name key from each gtm_a_pools dictionary based on the two above criterion (one list that has the subPath and one list for those without)"
A: Instead of json_query, iterate the list and compare the number of members e.g.
QUESTION
Here's the setup: An http request travels from the client connected to the Client VPN (NAT), to a private Hosted Zone in Route53 where the A record resolves to a Network LB DNS name which forwards the traffic to EKS nodes via their AWS DNS names.
The EKS is deployed across 2 Availability Zones of the possible 3 - lets call them 1,2 and 3, per their assigned subnet CIDR ranges.
The issue that occurs is this (According to wireshark)
The Client VPN private IP requests the A record from the Hosted zone, which comes back with the private addresses of the LB from the 3 AZs - Success
The client continues to issue a TCP request against the address from the subnet 1. This times out.
The client then sends a TCP request against the subnet 2 which succeeds and the site resolves.
If the TCP requests first get sent to 1 and 3, the site will not resolve.
At the same time, if the site is requested via a Public Hosted zone and an Internet facing LB, the site resolves without issue regardless of the AZ.
For the life of me I can't figure out why this round-robinesque behavior is happening, but more importantly, why can't the site resolve from another Availability zone?
What I've tried Recreating the LB with only 2 AZs - this only decreases the site load time by half, doesn't solve the problem.
Checked security groups - once inside the VPN, everything is accessible on the private subnet.
Checked routes - There are routes from the VPN endpoint to all 3 AZ subnets.
as per https://docs.aws.amazon.com/elasticloadbalancing/latest/network/load-balancer-troubleshooting.html, the Internal load balancers don't support loopback or hairpinning and AWS advises to use an Internet facing LB, which won't give out a private IP and the A records won't resolve via the public IP. Secondly, they advise registering targets by IP and not Instance ID, which won't work for me as the private IPs of the EKS nodes will change in the future as EKS gets upgraded.
...ANSWER
Answered 2021-Feb-12 at 11:46Based on the comments.
The issue was caused by dissabled cross-zone load balancing. By default it is off.
Enabling the cross-zone balancing was the solution to the problem.
QUESTION
I'm in a single-producer/multiple-consumers scenario. Consider that each job is independent and the consumers do not communicate among them.
Could it be a good idea to create a different queue for each consumer? In that way, the producer adds jobs in each queue in a round-robin fashion and there are no delays in accessing a single queue.
Or is it better to minimize the number of queues as much as possible?
In the case of a single Queue and lots of consumers (like 20 or more), is the delay due to the synchronization access to the queue relevant?
I'm using Python 3.7 and multithreading/multiprocessing to create several Consumers. Each Consumer needs to run an executable and perform some I/O operation (write, move or copy files). I've currently developed it with multiprocessing and single queue, but I'm thinking to change the approach to multithreading and multiple queues.
Single Queue
...ANSWER
Answered 2021-Feb-11 at 09:52Specifically in the case of one producer -> many consumers, the benefit is to only have 1 Queue that the producer has to connect to and you can spin up as many consumers as you want to process 'the next item'. Because Python has a very complicated relationship with Threading, I would recommend to use asyncio with asyncio.Queue. It is very intuitive and easy to use.
I recently brushed up on this topic and I found this gist very helpful in understanding how it works.
In any case, having more Queues will probably not speed up your processing. This could only be the case if (time to process message) < (get message from queue), which is not the case in your use case (with IO tasks etc).
QUESTION
I need to round-robin some calls between N different connections because of some rate limits in a multithreaded context. I've decided to implement this functionality using a list and a "counter," which is supposed to "jump by one" between instances on each call.
I'll illustrate this concept with a minimal example (using a class called A to stand in for the connections)
...ANSWER
Answered 2021-Feb-05 at 10:53No, the Interlocked class offers no mechanism that would allow you to restore an Int32 value back to zero in case it overflows. The reason is that it is possible for two threads to invoke concurrently the var newIndex = Interlocked.Increment(ref crt); statement, in which case both with overflow the counter, and then none will succeed in updating the value back to zero. This functionality is just beyond the capabilities of the Interlocked class. To make such complex operations atomic you'll need to use some other synchronization mechanism, like a lock.
Update: xanatos's answer proves that the above statement is wrong. It is also proven wrong by the answers of this 9-year old question. Below are two implementation of an InterlockedIncrementRoundRobin method. The first is a simplified version of this answer, by Alex Sorokoletov:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install round-robin
In order to install Laravel Round-Robin, just add the following to your composer.json. Then run composer update:
Open your config/app.php and add the following to the providers array:
Open your config/app.php and add the following to the facades array:
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