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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.

222 questions
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Load average 1.00 while top seems to show the server as idle

My server is not responding to HTTP requests, and it took me a long time before being able to log in with SSH; it all looks like the server is overloaded and on its knees. It already did that a few days ago, but after a reboot everything was back to…
BenMorel
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How to Monitor "NetworkIn" Activity on AWS?

Last night our AWS EC2 Linux Web Server started sending out CloudWatch notices due to high CPUUtilization. We had a normal number of users active, so I am struggling a bit to figure out where the issue is coming from. I have been looking at the…
Chris
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slow website load and high memory usage

my site has been slowed down last couple of days ... some image doesn't show up ... i got 408 Request Time-out: Server timeout waiting for the HTTP request from the client couple of times which never happened before . i did a little performance…
max
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Server Load very high despite CPU usage being low

When I run the top command I get this top - 23:20:50 up 1:25, 1 user, load average: 11.02, 11.20, 10.41 Tasks: 262 total, 3 running, 258 sleeping, 1 stopped, 0 zombie Cpu(s): 75.6%us, 6.1%sy, 0.0%ni, 3.1%id, 14.3%wa, 0.0%hi, 0.8%si, …
Euskadi
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high linux server load

I have a problem with high server load (load average from 10 to 100+) when there is a lot of web traffic. There are also noticable delays when reading/writing files. Machine is a Apache web server. Web page is using PHP and is accessing/opening some…
gib
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Is it worth to set up a different network interface for connections to MySQL?

I have a high load website served by two servers: web server with nginx and php, and database server with mysql. Web server serves all the static content and connects to MySQL and outside world through single interface - eth0. On peak hours,…
Temnovit
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Prevent heavy server query to overload Apache/Mysql

I have some questions about understanding high server load and implement some type of load balancing in a common scenario with solutions like Apache and MySQL and PHP 5. I am benninger in the matter and would like your opinion since Ive been reading…
xtrm
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How to trigger killing of apache child processes on higher system load?

I'm having a Debian with WordPress on Apache, which gets pretty nasty spikes in load from time to time, leading to hanging on of the whole server. I've played a bit with some of the apache configuration parameters in order to make it a bit more…
vlood
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How to reduce server load without killing processes?

I am running a CentOS 6 VPS with WHM/cPanel. I am trying to move some accounts, to reduce load, so I have to run /scripts/pkgacct, however the gzip and other processes run by this script cause a very high load on my server. I would like to keep load…
snowliondev
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Extremely high loads despite Caching

Okay I've got a nice dedicated server running CentOs 6 with 16gb of ram, dual xenon processors, etc. However I've been experiencing high loads due to mysql. Randomly the load will go below 1.0, and page generation time will be < 30ms, and the site…
Stratus
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Would Sphinx be a good solution to solve server getting bogged with heavy MySQL reads?

I'm working on a site that I believe gets about 70k visits a day and it makes use of a lot of queries which uses UNION's over about 45 different tables, these tables generally range from about 15k rows to about 500k rows in each table. We have…
Brett
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No apparent reason for high load average

We have several web servers running on Amazon (ec2) c1.xlarge, over Amazon AMI. The servers are duplicates of each other, running the exact same hardware and software. Each server spec is: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with…
Oz.
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No clue for high load average on top

We have several machines on Amazon (ec2) of the type c1.xlarge with 16 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit…
Oz.
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Apache process con.shs using 100% load on CentOS. What is it?

As a bit of background, it seems that our server got infected with something and is being used to open a ton of TCP connections over a large range if IPs. I'm halfway through trying to track down how our server got infected now; my tale of woe has…
dKen
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How to prepare for a huge spike in traffic for launching a website hosted on Heroku?

I am getting ready to launch a site I've been working on, and am talking to some bloggers. It's planned to go live next week and press will write about it when it does. But the thing is, this is my first time launching something that I've coded…
Vlad
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