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Questions tagged [high-load]

All aspects of high-loaded systems development and maintenance.

All aspects of high-loaded systems development and maintenance: design, algorithms, architecture, technologies, development, testing, databases, storage, support, hardware, hosting, management.

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Will the load average of my Linux box increase if it reaches file descriptors or TCP connections limit?

Will the load average of my Linux box increase if it reaches file descriptors or TCP connections limit ?
vivekyad4v
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How to upgrade 2 years old server?

Two years ago I bought a server with the following characteristics: Platform: Supermicro X9SRi-F Motherboard RAM: 8*8GB ECC 2133 DDR4 Reg (64GB) CPU: Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz 10 cores SSD: SSD 100GB SATA III Intel DC S3700 MLC- HET…
Z. Popov
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KeepAlive on or off for a server handling almost exclusively a single request per client?

The Apache in question is running on a Ubuntu-EC2 instance. It basically handles about a million requests per hour. Essentially a client will POST a JSON and that's it - so an interaction of a client with the server only consists of this single…
Raffael
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How to load balance streaming connection on the client side

I'm not entirely sure whether this is even possible, but I thought I'd ask all the same. So we have a service that connects to a streaming API which keeps a connection open and we receive JSON objects which we then throw into a message broker.…
justcompile
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Advice about running nginx or nginx + apache

I would like to share my situation because maybe helpful to others, and I need some advice. I administer a VPS with some web servers and high traffic. The systems specs are x2 Xeon E2620 with 2 cores, 18Gb ram and 800Gb HDD. The first step when I…
ppk
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Understanding the concept of highload application

So, I have an idea of creating highload app using Ruby on rails. However there are some questions about the conception of the project. The main idea is Client->Load Balancer -> Server_1 ->Database_1 (Master) -> Server_2…
Ascelhem
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Server slow, but plenty of CPU & RAM

My site has gone from getting 20,000 visits/day, to 182,000 yesterday, due to being featured on a number of popular sites. The site has become somewhat unresponsive. Many requests will lead to a timeout. Yet there is plenty of CPU & RAM available.…
Kohjah Breese
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Server crashes with incredibly high load

I got a problem with a KVM-virtualized server (Proxmox-based), running on Debian 7.8 and PLESK. Sometimes there are loads > 200 (sic!) and I just do not get the reason why. The monitoring shows the increasing load (at first: 19, some minutes later:…
MyFault
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Too many php session files created on one server

We have a web application running multiple instances on different plesk servers. On one server we see quick generation of php session files under /var/lib/php/session directory. Which grows in 100 thousands in short period of time and clean-up of…
RayF
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How to speed up (very remote) overloaded server connection

I'm living in France and I need to load a page from a far far away server (still in the same galaxy). "Far" is Canada to me, meaning over 8 000km of internet cable. The problem is, this server is very overloaded. Millions of people connect to this…
Martin Magakian
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VServer Apache: Is 5s page load normal for ~100 clients?

I administrate a virtual server with 16x Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz with a shitload of 32GiB system memory. The server is used as a web server and has 100 to 150 users at rush hour. In these times the server needs around 5 seconds to…
lenny.myr
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Find the VirtualHost that got hight traffic from multiple log files

Sometimes my Apache server get high load. I have a lot of VirtualHost, each one having its own log file. The structure is like this /var/www/httpd-logs/virtualhost.com.access.log What command could I use to find the website that got a high load in…
Laurent
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Tomcat 8.15 APR Poller failed with error 610,038

I was testing my server with JMeter but when I reach an Highload the server tends to have this error logged on the console and it keeps a lot of active threads on apparent deadlock : 30-Jan-2015 17:24:38.504 SEVERE [http-apr-80-Poller]…
user1709665
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hosting country for a global site

For a high traffic global web site is it efficient to change the hosting country to out of US ? I have to make a decision between colocating our own servers nears us vs dedicated server solution at US. The problem with dedicated servers is they're…
sirmak
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Choose hardware for MySQL server with 1-2k rps

I am looking for new DB server. I'd like to know your opinions and recommendations. Current server spec: We use DB server for website with 100-200 req per sec(i plan growth up to 200-250) Today we have 1000 - 2000 rps for DB from php (growth to…
andreyvlru
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