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Questions tagged [scaling]

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0
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1answer
38 views

Nginx with docker load balancing app server (php)

I haven't found an solution so far, so I'm asking here: This is the situation I'm locking an solution for: We are planing an architecture that contains the following components Docker Container (...
1
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0answers
21 views

Can Kubernetes prioritize nodes when scaling?

I have a Kubernetes cluster on AWS set up with KubeAWS. We're using some sensitive third-party integrations that require white-listed IP addresses in their firewall. Now, what I've done is that I've ...
0
votes
1answer
25 views

Is it pointless to scale your containers in the same physical server?

This is a question I couldn't find an answer Googling, maybe the terms I should search are different. Suppose you have a containerized app, NGINX Container, PHP Container and DB Container. You need ...
0
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0answers
88 views

AWS ECS scaling with custom load balancer

I am currently using AWS Elastic Container Service. It is running with a HAProxy server acting as our load balancer, along with a lambda that acts as a service discovery mechanism for the servers. Our ...
0
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0answers
71 views

Basic scaling instances of GAE don't shutdown even when idle-timeout is far exceeded

I have configured a version of my default service on Google App Engine Standard (Java, though that shouldn't make any difference) to use basic scaling and run a single B2 instance: <appengine-web-...
1
vote
1answer
268 views

Can aws vertical scaling of ec2 instance support 100,000 users per day? [duplicate]

I have a link sharing site (think reddit). It is hosted on godaddy deluxe shared hosting now. I am planning to migrate it to aws. I have seen an aws webinar on scaling till 10 million users. But ...
1
vote
1answer
214 views

How to scale horizontally a Parse Server?

My current setup is: 1 Parse Server - 2.6.3 1 MongoDB Server - 3.4.9 Both running on Ubuntu VMs. In a few weeks, we are expecting our user base to grow significantly! We are currently using 2 VMs ...
0
votes
1answer
439 views

Using HAProxy for syslog traffic at scale

I have an environment that generates a frankly ludicrous amount of Syslog traffic - this is mostly due to a culture of leaving debug-level logging on in production applications (and changing this ...
0
votes
1answer
405 views

Do slow nodes bottleneck a Galera Cluster?

Let's say I have a 5 node cluster, with 3 SSD RAID 10 nodes and a 2 SSD RAID 1 nodes. Will the RAID 1 nodes slow down the entire network? How do the Galera cluster writes work? Does it have to wait ...
0
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1answer
220 views

Configuring Redis for a read heavy application

Redis connection timeout even after upgrading to elasticache m4.xlarge We are facing connection timeout.Our cache size is hardly 1.5Gb.We have been using m4.large instance and there was around 150-200 ...
-1
votes
1answer
33 views

User account affects screen scaling

I have an Azure VM with a couple of local accounts. If I use MSTSC to connect and login with account1 then all is good. If I login with account2 then the scaling is messed up and text is so small it's ...
1
vote
2answers
967 views

Why is my AWS instances suddenly becoming irresponsive reporting high “stolen” CPU

The setup I have a bunch of t2.small EC2 instances running hosting the image processing library called thumbor for simple on-the-fly image resizing. Originals are loaded from S3. In front of the ...
1
vote
1answer
36 views

AWS Horizontaly Scaling application

I have a NodeJS program that has 50 workers ready to process requests. The script maintains connections to the service that distributes requests. I want to autoscale this script so that when 45 ...
0
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0answers
236 views

Frequency scaling causes CPU lockup

I've run into an issue with Linux and the Nehalem/Westmere series of xeons. I have two KVM vmhosts that I have tried enabling frequency scaling on, and every time I do they lock up after awhile (I've ...
0
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0answers
107 views

Advice about scaling out IIS and SQL Server 2014 on Windows Server 2012R2

We are running a dual processor server E5-2630 V3 / 64 GB RAM with Windows Server 2012 R2, this server has IIS and SQL Server 2014 installed, only one web service is running to serve a mobile ...
-2
votes
2answers
346 views

Should I scale vertically or horizontally assuming equal pricing? [closed]

AWS instances usually have a linear pricing model: i.e. 2 small instances are the same price as one medium instance (which has exactly 2x the performance specs). So what would be the better choice? ...
1
vote
1answer
110 views

Distributed image processing on AWS: how to know the address of master node?

Context: I am building a mobile application that will let users apply advanced filters to their pictures. Since the processing can't be done on the phone, it will be offloaded to EC2 instances. I ...
2
votes
1answer
120 views

Thought about using my server hardware effectively

I will receive my new server hardware in some days, and of course I am already planning on how to use it the most effective way. My current thoughts are about scaling the web and database server on a ...
0
votes
1answer
503 views

AWS autoscaling cooldown

I have 1 instance. If latency more then 1 second for 3 minutes, it will add up another instance. And here the problems arises: after 50 min(because of scaling cooldown) this 2nd instance terminates. ...
1
vote
1answer
262 views

Best practices for scaling and capacity planning : VM only ? VM+Container ? Container only ? Cluster ? Something else?

(I can't find a similar question which has been already answered but maybe I do not use the good words as I'm a french student ;)) The closest answer to what I'm looking for is : Scalable Web ...
1
vote
2answers
535 views

Using Azure Traffic Manager for an immediate increase in capacity

I have a REST web-service on Azure which has very high but variable load, it's all set-up to auto scale using Paraleap so that it can handle the peak periods but keep costs down when things are ...
4
votes
1answer
2k views

Creating a stable, auto-scaling app server cluster

I have two servers, each running anywhere from 50-100 different legacy webapps, written in languages ranging from PHP to Python to Ruby-on-rails to NodeJS. We're wanting to kill off these machines ...
6
votes
2answers
1k views

AWS - how to serve faster to oversea users

We have our infras relying on AWS in the us-east-1 region. (EC2, CloudFront, RDS, ElastiCache) We are now having more and more users from the APAC. Users start to complain about network speed to our ...
1
vote
1answer
631 views

Google App Engine vertical scaling

I know Google Cloud (Google App Engine) can autoscale instances horizontally: you have 1 server with certain parameters, when it's overloaded autoscaler launches new server and balances load between ...
0
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0answers
602 views

Horizontal Versus Verticale Scaling for Large Scale RoR Application (High CPU and Memory Usage)

We are launching a high demand (several hundred simultaneous users) Ruby on Rails application and we are trying to determine the best way to scale. Currently, we have a setup that follows this ...
0
votes
1answer
1k views

pushing apache2 past 1500 concurrent connections

I am trying to scale to 4000 concurrent connections on a ubuntu/apache box. It is 8 core / 64gb ram, so it is not hitting memory or cpu, or any resources for that matter. The problem is with ...
12
votes
2answers
12k views

How can I make Microsoft Management Console high-DPI aware in Windows 8.1?

Since Windows 8.1 doesn't allow system-wide "Windows XP style" high DPI support, how can I make the Microsoft Management Console apps (mmc.exe) high-DPI aware? There is no "Troubleshoot compatibility" ...
1
vote
2answers
940 views

Load Balancing MongoDB

I have an application written in java with tomcat that I am ready to start scaling for production. As I understand it, i shouldn't use a load balancer with mongodb router instances as it can cause ...
-1
votes
1answer
90 views

What kind of scaling method is it, when you add new software to a single server to handle more users? [closed]

I have read about scaling (in terms of terminology and methods). This got me confused about the following: On a single computer, running a web server (say apache), if the system administrator adds a ...
1
vote
2answers
1k views

How do I force apache to drop requests after a predetermined amount of time?

I'm setting up a system that has hard requirements on the response time. How do I force Apache2 to drop requests in the queue after 200ms if it hasn't been served? Background One of our internal ...
0
votes
3answers
106 views

Grant mysql access to remote servers without IP

I'm setting up a hosting scheme that will involve a master server and clone servers all accessing a remote mysql DB on its own server. As traffic increases/decreases I will be adding or removing clone ...
4
votes
1answer
3k views

Can I use MongoDB with Amazon EC2 small instance?

I want to move my MongoDB from a virtual server to amazon web services. I know MongoDB provides a preconfigured AMI, with three provisioned EBS volumes. But this is only available for m1.large ...
13
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5answers
789 views

How do services with large ingest rates install enough hard disks fast enough?

Amazon, Facebook and Google must take in TBs if not PBs per day, so does that mean they have people continuously installing new hard disks and cables in new racks in the same way you might build a ...
5
votes
2answers
2k views

HAProxy not balancing server load fairly

HAProxy doesn't seem to keep the connections to the servers balanced. Keep this in mind: using HAProxy v1.3.26 5 equally balanced server specs algorithm is round robin, but no weights are applied ...
0
votes
2answers
1k views

What ports to open in aws security group for aws?

I am building the backend for a turn based gamed. My experience is mostly with a lamp stack; I've dabbled in nginx on a node side project. I just read Scaling PHP Applications by Stephen Corona of ...
0
votes
2answers
1k views

How can I perform IIS stress test 40,000 http requests per second?

I'm the co-founder of a startup which is in the beginning and growing rapidly. I want to test an stress scenario on my IIS server to help figure out the resource needed from our cloud service, like 40,...
0
votes
1answer
367 views

How do I go about finding the bottleneck in a slow web based chat application

I am working on a one-to-one chat application running in production. It uses StropheJS to connect to Ejabberd server over BOSH (using ejabberd's default connection manager). The main problem we are ...
0
votes
1answer
240 views

AWS Beanstalk / load balancer doesnt distribute load

I have two instances of EC2 running with Tomcat servers. I deployed my war using beanstalk. My load balancer has both the EC2 machines listed under the Instances tab. I'm trying to do some load ...
11
votes
5answers
11k views

AWS: Multi-region setup using single RDS instance

I'm trying to scale our web application (PHP, MySQL, memcache) in a multi-region scheme. Currently we are using a setup with two EC2 instances behind an ELB and an RDS instance, all of them in US-EAST ...
0
votes
1answer
98 views

Scaling Rails 2.x application with more app servers

I'm thinking of a setup for our rather popular website to be able to scale on the CPU side of things. We are running quite a few CPU intensive image conversion jobs at random times (user input) and ...
6
votes
1answer
9k views

How to horizontally scale SSL termination behind HAProxy load balancing?

I've been looking around and no one seems to be trying to scale SSL termination the way I am and I'm curious as to why my approach seems so uncommon. Here's what I want to do followed by why: 10.0....
2
votes
0answers
70 views

scaling website to perform equally fast worldwide [closed]

Our website is growing and we get more and more customers all around the world. We use Nginx, PHP and MySQL Our servers are in UK, so it is fast in Europe, but the further we got away from servers - ...
2
votes
1answer
269 views

MongoDB PHP EC2 Setup Configuration

I am new to web development and server set up. I am looking for some advice or a link to a tutorial on setting up a production system up. Right now, I have a server (Ubuntu, Apache, MongoDB, and PHP)...
1
vote
3answers
272 views

How to make a vm scale when demand for resource increases

i am having a server with 16 virtual core and 24G RAM,using Xen virtualization and ubuntu as dom0 Created 4 VMs (in para mode),each with different applications. CPU Load vary on each vm,somtimes ...
0
votes
1answer
4k views

TCP Windows scaling on Windows 2008 server

If found only this article on windows 2008 server or Windows 7 TCP Windows scaling. http://8help.osu.edu/3253.html Is there any other information that I can use to change registry that would modify ...
0
votes
4answers
110 views

What would be a quick fix in case of server downtime due to sudden high traffic?

Let's consider a scenario like below: A small web blog build based on LAMP stack and deployed on a shared hosting. Suddenly it becomes popular in one day and it gets million hits per day. Since the ...
1
vote
3answers
76 views

Localized database for customers

The company I work for, has just moved to AWS - and currently they have one very large central database with the instance currently located in America. However, one of their clients has requested ...
4
votes
4answers
14k views

Maximizing TCP connections on HAProxy load balancer

I am currently using HAProxy in order to load balance tcp connections from clients to my Erlang app server. The connection is persistent, which means I'm limited to roughly 64K clients on an optimized ...
0
votes
2answers
773 views

How to Plan for scale on my rackspace cloud server

I currently have a couple of cloud servers on Rackspace For application NGINX+PHP+Memcached+APC 2GB instance For Mysql Database 1GB instance Our site at the moment is not very heavy in terms of ...
0
votes
1answer
4k views

TCP Window Scaling. TCP scale factor not supported due to dynamic TCP Frame Size on windows 2008 server

PROBLEM Calling an asp webservice hosted by an ISP from our WCF service hosted on Windows 2008 Server is showing timeout/no response from webservice. DIAGNOSIS Using windows network monitor to ...