I'm using this code to start my workers, and works great but I've receive the following capistrano output:. The exit code of the command is nil so capistrano thought that the command failed, but I've checked and the workers was started correctly.
I am using Resque 1. After waiting a couple minutes, I have to control-c and rollback. This there something I have to do with an older script like this? I am also running 1. I wanted to add a word of caution. I haven't used this script in a while, hmwz645m4fs2 grandi sconti asics scarpe asics gel dedicate jr would probably use Foreman with a Procfile these days.
It's bad, but it works. And actually, I just want to kill the workers from one specify application. Anyway, the best choice to solve this problem should be using something like 'god' or 'monit' to maintain the workers.
In the long term I am going to look into Foreman, god, monit, or whatever to monitor and restart workers. It's a combination of kenniz 's pid extraction technique it is bad, but it's also used in parts of the resque code itself!
We've gotten Capistrano to execute rake tasks on a remote machine. Each of the above "worked" in varying capacities, but ultimately, when the Capistrano script ends, the connection to the remote machine is severed, and the rake tasks running on the remote machine are terminated. We ask Capistrano to run our task inside application. Like to point out that this can be accomplished with a gem now. Skip to content. Instantly share code, notes, and snippets. Code Revisions 1 Stars 55 Forks Embed What would you like to do?
Embed Embed this gist in your website. Share Copy sharable link for this gist. Learn more about clone URLs. Download ZIP. Start and Stop tasks for resque workers, with capistrano deploy hook without God. This comment has been minimized. Sign in to view. Copy link Quote reply. Thanks in advance. These is the output, I don't notice anything wrong. Hi there, I am using Resque 1.
This is the command the Worker class uses to find non-Solaris pids: ps reclusive people reddit -o pid,command grep "[r]esque" grep -v "resque-web". I did not know Resque used ps and grepped for the term "[r]esque". That seems quite brittle.
I ended up breaking a production server with this.There are many queueing systems out there. Each one of them is different and was created for solving certain problems. This page tries to collect the libraries that are widely popular and have a successful record of running on big production systems. The goal is to create a quality list of queues with a collection of articles, blog posts, slides, and videos about them. After reading the linked articles, you should have a good idea about: the pros and cons of each queue, a basic understanding of how the queue works, and what each queue is trying to achieve.
Basically, you should have all the information you need to decide which queue will best fit your needs. The whole site is open source and is updated quite frequently. If you find any mistakes or see something missing, feel free to post an issue or send a pull request. All contributions are welcome! Amazon MQ is a managed message broker service for Apache ActiveMQ that makes it easy to set up and operate message brokers in the cloud.
Amazon Simple Queue Service Amazon SQS is a messaging queue service that handles message or work flows between other components in a system. An open source project to build a multi-protocol, embeddable, very high performance, clustered, asynchronous messaging system Donated to Apache ActiveMQ community.
IronMQ is an easy-to-use highly available message queuing service. It is available as a cloud service on Amazon and Rackspace as well as on-premise with Iron. Features include a nice dashboard to manage queues, easy to create webhooks, unicast and multicast Push Queues, autoscaling alerts for worker processes, and error queues. A Java based high throughput, low latency message bus, using either a memory mapped file or shared memory as transport.
It stands on the shoulder of giants, built over Python, Twisted, Cyclone a Tornado implementation over twisted and Redis. RQ Redis Queue is a simple Python library for queueing jobs and processing them in the background with workers.
Resources What is Amazon MQ? Created to improve the response time for the Causes on Facebook app. Written in C is very fast and lightweight. It provides simple protocolinspired by memcached Queues have O log n time push and pop operations. It can be run in persistent mode, which will write all jobs to binlog. Long list of client libraries for many languages Resources Beanstalkd and Stalker - RailsCasts railscasts.
Server Fault is a question and answer site for system and network administrators. It only takes a minute to sign up. I'm looking for a way to monitor the "queue depth" of my resque and resque-scheduler redis instances. Currently I am using god to ensure the resque and resque-scheduler tasks are running, and I use Scout to monitor my Rails application in general. What I am looking for is a way to monitor the number and rate of jobs being scheduled and executed. Basically, I feel pretty confident that I will know of a problem with resque where it is just plainly not running, but I am more concerned about a scenario where the job queue is getting backed up or some other event has caused a large number of jobs to be scheduled, possibly due to some other error.
I'm using redistogo in this application, though that may not be significant to how I approach the problem. Thanks for any pointers. Scout provides a resque monitor plugin but it didn't support resque-scheduler and seemed to default the namespace in a different way than the resque gem. I forked the source for the Scout plugin from jnewland and made some enhancements that added resque-scheduler support as well as matching the default namespace in the resque gem and some other configuration options.
If this is helpful to anyone else, I've made it available on github and issued a pull request. Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 8 years, 6 months ago. Active 20 days ago. Viewed times. Chris Hart Chris Hart 5 5 bronze badges. Active Oldest Votes.
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Background jobs with php and resque: part 7, Manage workers with Fresque
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Absolutely outstanding customer support. I was truly thrilled with how diligently your team solved my problem. He was extremely useful, cared enough to help in the search himself and responded very quickly. I appreciate everything he's done for me!In this second installment, we will look at the most common use of a standalone application—the worker process. Workers can be used for all kinds of asynchronous background jobs, such as updating search indexes, emailing all users with a password reset approaching, performing a database backup to persistent storage, or uploading new customer data from external storage.
In this post, we will walk through an example of deploying workers to Cloud Foundry using Resque. It is recommended to use bundle exec to ensure that all required gems are available. Lastly, we bound the app to the same Redis service used by resque-server. How will the app connect to the provisioned Redis service? Since we used the Ruby runtime provided by Cloud Foundry, the app will benefit from the new Ruby auto-reconfiguration support.
Cloud Foundry will automatically replace the local Redis connection with a connection to the Redis service we bound to the application! And there you have it! We can now deploy Resque workers as standalone apps on Cloud Foundry. Clone the Cloud Foundry resque-sample and try it out for yourself!
Cloud Foundry now provides improved Resque support through standalone applications, as well as support for other Ruby worker libraries or apps. If you can package all the bits and provide a start command, you can run it on Cloud Foundry! In the next installment in this series, we will explore another example of workers in action using Spring integration. Stay tuned! Sign up for free today. We recently launched epics, to make it easier to plan and track progress of large features at a high level Cloud Foundry has significantly enhanced support for worker applications that perform background processing Some upstream projects that Kubernetes architects and engineers use to set up Kubernetes production systems for customers.
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May 3, Jennifer Hickey. First, we need to rename the generated manifest. New Year, New Release: Kubernetes 1. Home docs Datasheets eBooks Slides.Edit This Page. In this example, we will run a Kubernetes Job with multiple parallel worker processes in a given pod. In this example, as each pod is created, it picks up one unit of work from a task queue, processes it, and repeats until the end of the queue is reached.
You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not already have a cluster, you can create one by using Minikubeor you can use one of these Kubernetes playgrounds:.
For this example, for simplicity, we will start a single instance of Redis.
Task Processor scheduled task is stuck at the 'Queued' state in Confirm
See the Redis Example for an example of deploying Redis scalably and redundantly. In our example, our tasks are just strings to be printed. We will use a python worker program with a redis client to read the messages from the message queue.
A simple Redis work queue client library is provided, called rediswq. Here it is:. You could also download worker. For the Docker Hubtag your app image with your username and push to the Hub with the below commands. You need to push to a public repository or configure your cluster to be able to access your private repository. In this example, each pod works on several items from the queue and then exits when there are no more items.
Since the workers themselves detect when the workqueue is empty, and the Job controller does not know about the workqueue, it relies on the workers to signal when they are done working. The workers signal that the queue is empty by exiting with success.Ruby Multithreading: Queues, Consumers & Producers
So, as soon as any worker exits with success, the controller knows the work is done, and the Pods will exit soon. So, we set the completion count of the Job to 1.
The job controller will wait for the other pods to complete too.
Running Resque Workers on Cloud Foundry
If running a queue service or modifying your containers to use a work queue is inconvenient, you may want to consider one of the other job patterns. Thanks for the feedback. If you have a specific, answerable question about how to use Kubernetes, ask it on Stack Overflow.
Open an issue in the GitHub repo if you want to report a problem or suggest an improvement. Here is an overview of the steps in this example: Start a storage service to hold the work queue.
In this example, we use Redis to store our work items. In the previous example, we used RabbitMQ. In this example, we use Redis and a custom work-queue client library because AMQP does not provide a good way for clients to detect when a finite-length work queue is empty. In practice you would set up a store such as Redis once and reuse it for the work queues of many jobs, and other things. Create a queue, and fill it with messages.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. The problem is that I need to keep the terminal window opened, otherwise resque:work won't works. Instead of calling the invoke function, you can use a gem like foreman that can invoke all the other tasks.
This is useful if you are looking to have a largely platform neutral solution and also while deploying into cloud. Your Procfile can have the following contents:. Source: introduction to foreman. Now to start the server, you just have to issue foreman start command which forks off child threads to perform individual work.
Learn more. Ask Question. Asked 7 years, 5 months ago. Active 5 years, 2 months ago. Viewed 16k times. Do you know a way to auto-run that rake command every time I run "rails server"?
Thanks, it's Perfect! AlexeySukhoviy Do you know how avoid to re-run this every time I restart my server? Where pid is a pid of resque process. But for development purposes I recommend you not run resque in background. As for me it is better to keep it lunched in another terminal and restart it only if I made some changes to code with which resque process operates. Active Oldest Votes.
Sumit Bisht Sumit Bisht 1, 1 1 gold badge 15 15 silver badges 29 29 bronze badges. Edit: Answer from ! Seems that this works just for Rails 2! I know, I just specify for users landing here. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
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