Questions tagged [worker-process]

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High iowait with RAID0. CPU 100%. Static data is not cached in RAM

I ask for your help. I myself can no longer see the way out. I have a server 1x Xeon E-2236 32RAM 4 x 10TB disks (WDC WD101KRYZ-01) - collected in RAID-0. The disks are fast. Each individually ...
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1 answer
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worker_processes value for Nginx/Openresty running on Kubernetes

Based on the documentation here, https://nginx.org/en/docs/ngx_core_module.html#worker_processes The worker_processes is defined as the number of worker processes. The optimal value depends on many ...
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Nginx sock failed

we have encountered an issue on our web application. The event on error log of nginx is: connect() to unix:/run/php-fpm/www.sock failed (11: Resource temporarily unavailable) while connecting to ...
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6 votes
3 answers
7k views

How to make laravel queue work in aws beanstalk?

I made an AWS Beanstalk and RDS instances. I'm testing out a project which syncs FTP and S3 files. How do I make the typical php artisan queue:work or php artisan queue:listen work in AWS Beanstalk? ...
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IIS 8.5 - What is the criteria used by IIS to launch the worker processes?

We have a certain application running in IIS 8.5 implemented as a "web garden", with say, Max Worker Processes = 10. The reason for this is long-running requests, DB and network/async intensive, to ...
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1 answer
1k views

Remove consumer before start deployment from RabbitMQ queue

We have setup of Celery worker with 8 node setup. It create 8 queues in RabbitMQ. When we start deploying new changes, last step in ansible playbook is Celery restart. Celery restart has to down ...
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  • 255
16 votes
1 answer
142 views

How to start a program when CPU percent reaches X

I have been having very intermittent problems with an ASP.NET v 4.0 application happens maybe ever 4 days, what happens is the CPU will spike to 75% and sometimes is will run fine until the end of the ...
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54 votes
5 answers
88k views

Optimal value for Nginx worker_connections

Nginx worker_connections "sets the maximum number of simultaneous connections that can be opened by a worker process. This number includes all connections (e.g. connections with proxied servers, among ...
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the file is open in IIS Worker Process

I have a WCF service hosted on IIS7. I am using source control tool (IBM RTC) to manage code base and continuous deployment on our testing server. but my deployment is failing because IIS has acquired ...
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  • 101
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0 answers
163 views

aws beanstalk php worker scaling

I have a very lightweight PHP script running in my worker environment. CPU utilization is next to nothing. To get my SQS queue under control I have to keep manually launching new workers to bring the ...
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1 answer
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How to prevent IIS from recycling Application Pool when a worker process is unresponsive

We have a WCF service which handles great amount of requests. As I discovered, when the number of cuncurrent requests exceed the limit of max cuncurrent connections, the consequent requests will be ...
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  • 111
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0 answers
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IIS CPU Limit not taking effect on Azure VM

we've got some old legacy web apps that we host on an azure VM. In some circumstances they get stuck in a situation that spins the W3WP process into 99%> and causes grief for the server. They're not ...
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3 votes
0 answers
740 views

Obtaining a Crash Dump from a dying IIS ASP.NET Worker Process

(Not sure if this is an IIS problem or not, so if this is better suited for SO I'll happily move it...) We have an IIS-hosted application that is sporadically dying, and the event logs claim that the ...
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1 vote
0 answers
1k views

How to proceed in analyzing IIS 7.5 Debug Diagnostic Tool dump from w3wp.exe thread crash from Windows Process Activation Service

I am using the Debug Diagnostic Tool (DebugDiag v1.2) on a few production Windows Server 2008 R2 Standard servers running a custom web application built in-house on IIS 7.5 to create crash dump files. ...
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1 answer
454 views

Task Manager shows more worker processes than the max set [closed]

I am doing application pooling for a web application used by huge number of users and set web garden with a max of 20 worker processes. But in task manager, I see more processes than the w3wp ...
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2 votes
1 answer
5k views

Does recycling an application pool clear the request queue?

I am a IIS nube. I have been reading about the benefits of recycling your application pool to free up memory caused by problematic applications that may have leaks. I understand that by recycling the ...
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10 votes
3 answers
25k views

How can I configure supervisord managed program to wait X secs before attemting to restart?

I've got a worker process which processes 1 RabbitMq message at a time. Right now, as soon as the worker exits, supervisord is restarting it (which will process the next message). I'd like to set an ...
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11 votes
2 answers
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Do unused application pools in IIS affect performance?

Due to a major update in our architecture, we now have a few unused application pools under IIS (there are no web sites mapped to them). I understand how it can a good idea to remove them just to ...
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1 answer
437 views

Servers vs. Worker Processes [duplicate]

Just wanted to get some other opinions. I am currently having a discussion on how to go on a web environment. We want to virtualize our web layer for a very active site. However, there is a debate ...
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0 answers
572 views

Only one of the sites in an application pool has queued requests - why?

I have a server that has several application pools (basically one per CPU core). Each application pool: 1) has several sites, 2) runs .NET Framework v4.0.30319, and 3) is running in Managed pipeline ...
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  • 660
4 votes
1 answer
3k views

The relationship between IIS Application Pool Maximum Worker Processes and Component Services Application Pooling

We're in the process of deploying a new app into it's live environment. The app servers are running an IIS hosted .NET application that uses EntityFramework and makes numerous calls to a non .NET COM+...
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2 votes
0 answers
655 views

Apache 2.4: Differences between prefork, event and worker modes [duplicate]

Apache 2.4.x allows 3 different modes: prefork event worker What are the conceptual differences between these three? What are the types of applications or each or situations in which each MPM is ...
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  • 539
0 votes
2 answers
332 views

IIS 7 spawning processes and eating memory for trivial requests

We have a webapp (ASP.NET MVC 4) running on IIS 7.0. Recently, it's started crashing, logging OutOfMemoryException as the cause. We also get a load of "unhealthy worker process" notifications, as well ...
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5 votes
1 answer
10k views

Requests getting queued in IIS worker process at ExecuteRequestHandler

For some reason, the requests in one of our app pools started "hanging up" today. The CPU usage is low, as is memory consumption, but requests in a worker are coming in and just getting queued; they ...
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3 votes
1 answer
2k views

IIS 7 - worker processes more than one

if i set worker process as 1, my application pool hangs. if i set it at least 6, everything works fine. but every article i read says "don't set it more than 1" so, in this practice, am i wrong? or ...
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  • 31
2 votes
3 answers
6k views

Assign more memory to w3wp worker processes

My workers processes cap out at 70mB. How do I raise this limit? I have 4Gb on Windows 2003 IIS6. Thanks!
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  • 183
1 vote
2 answers
10k views

How many worker processes are assigned to an application pool?

Can I configure the number of worker process, that I need an application pool should use?
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25 votes
2 answers
37k views

IIS 7.x Application Pool Best Practices

We are about to deploy a bunch of sites to some new servers. I have the following questions about application pools: It seems advisable to have one application pool per website. Are there any ...
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1 vote
2 answers
2k views

CPU being pushed to 100% by a process, trying to track and eliminate the problem

I am having trouble with the web servers CPU getting stuck at 25%, then 50%, then 75% until finally maxing out at 100%. Which we are guessing may be some slightly slower SQL queries stacking up, but ...
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  • 11
2 votes
1 answer
107 views

track iis work process resets

Is there any way to know if IIS resets the app pool/worker process, in IIS 6? We're seeing funny results in our web application, and I think it has to do with sessions being cleared because the work ...
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  • 903
0 votes
2 answers
1k views

Minimum number of "ready" IIS worker processes

In my experience working with IIS, when a worker process is recycled, the next request to "activate" the new process has to wait whilst the process performs it's one-time startup. This wait can be ...
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6 votes
1 answer
32k views

what does apache (busy workers , idle workers) means?

what is the meaning of Apache busy workers and idle workers? how the statistic of them help me to figure out performance problem with my server?
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2 answers
19k views

IIS Worker Process Recycle without Killing w3wp?

I'm running an ASP.NET application on IIS 7. The server blissfully hums along until An Application_Start event is raised All requests made by currently connected users give a '...
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  • 101
0 votes
1 answer
1k views

IIS7/.NET Memory Leaking - Is Worker Process Recycling The Only Long Term Fix?

I have a problem with a .NET 4 application leaking memory. It's not a "forgot to clean it up" leak in the normal sense, they are doing compiles that create a bunch of .NET assemblies in memory and ...
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1 vote
1 answer
120 views

iis6 which app pool does each w3wp belong to?

I have a run away worker process. Which of the 10ish sites on this box is it thats going nuts? How can I determine from the pid of the worker process which site he is?
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1 vote
1 answer
3k views

automatic IIS worker process recycle fails

The server is set to its default configuration to recycle the app pool every 1740 minutes. When this happens the following message is logged: A worker process with process id of '1234' serving ...
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