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2
votes
3answers
191 views

Internet load balancing [closed]

I have 2 internet lines from 2 different ISPs. 1 ISP needs to use manual proxy configuration and the other do not need ( no proxy ). I need to combine these two lines ( load balance or failover ...
2
votes
2answers
292 views

LAMP stack on 64bit, 16 core box chews up 100% CPU

===SOLVED=== This issue was solved. Turns out that ImageMagick has trouble with multiple CPUs. Compiling ImageMagick to use one CPU solved the problem. ================ I added a new web server as ...
0
votes
2answers
77 views

load on php mysql linux performance

I have multiple scripts under PHP execution on linux server, which do constant operations on MySQL residing on the same server. I observed that many 'deadlocks' and 'longer wait timeout exceeded' ...
2
votes
3answers
259 views

mysql having loads

My website and server both are huge and heavy, my server is having 8GB RAM and 6 cores of processor. I got a mail from my hosting team, regarding the load of mysql database, Now-a-days my site is ...
0
votes
1answer
864 views

HIGH CPU on my Apache server (Windows)

I have a big problem, My Apache server use 50% of CPU when I have many visits, my website have only 30 000 pages viewed/day and many static content, but the server load is between 10% and 50%, I am on ...
0
votes
1answer
51 views

Logging in to a bogged down server

Been trying to login to my server for about an hour. ssh is timing out and webmin's not helping either. I know I've been having some issue with one program that occasionally spikes the load. Short ...
1
vote
2answers
372 views

Load high with very little CPU usage?

The load has been sitting at around 6 but there is very little running on the box. Any ideas what's causing this? It's a large AWS instance. http://grab.by/9VZk procs -----------memory---------- ...
0
votes
1answer
373 views

How to interpret these munin stats of nginx?

The following stats are from a site where nginx was placed in front of a webserver to deliver static files and let the CMS application on the legacy webserver focus on the dynamic work. This is done ...
0
votes
1answer
290 views

MySQL database server on a VPS: can it handle the spike in traffic I'm anticipating?

I have VPS service with Hostican.com. 2.7GHz CPU, 2GB RAM (level 5, if you look at the site). I have a smartphone app that makes requests to PHP forms, which query the MySQL DB. I'm anticipating a ...
4
votes
1answer
1k views

haproxy httpchk multiple check on backend

is it possible to check two conditions on one backend? example backend web-static option httpchk GET /path/alive.php HTTP/1.1\r\nHost:\ www1.domain.com option httpchk GET ...
0
votes
1answer
5k views

Haproxy ACL for balance on URL request

I'm usung Ubuntu with haproxy 1.4.13 version. Its load balancing two subdomains: app1.domain.com app2.domain.com now i want to be able to use ACL to send based on url request to the right ...
0
votes
2answers
359 views

Is my server under a DDOS attack? [duplicate]

I'm getting repeat requests for resources on my server and this is increasing the load greatly. Currently my load is at 2.5ish. I block individual IP addresses causing the problem but eventually the ...
4
votes
2answers
4k views

What does load average mean? [duplicate]

Possible Duplicate: How to understand the memory usage and load average in linux server I have ready many articles that try to explain load average. To date none have ever explained it well ...
2
votes
1answer
946 views

How can I find the source of my high load issues on Ubuntu server?

We have an Ubuntu 10.4 VPS serving a Rails site which often shows pretty high load, but doesn't have high CPU or memory numbers. Reading a lot of other questions here on Server Fault suggests to me ...
2
votes
1answer
199 views

EC2 instance CPU in thousands

I started a new instance (c1.medium) and top show some crazy cpu usage PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 9561 ubuntu 20 0 84888 ...
2
votes
1answer
395 views

Which PHP script is overloading my VPS?

Is there a way to get the PHP script filename that is currently hammering my VPS? For example, when I view "top", I see: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 7622 itil ...
3
votes
3answers
123 views

We are moving to two servers from one server due to performance issues. How do we monitor the value of this change?

We are moving to two servers from one server due to performance issues. We are moving our MySQL DB to its own dedicated server and will keep the original machine as the front end machine running ...
2
votes
5answers
6k views

How to Best Manage High PostgreSQL CPU Use?

I am trying to fix a high PostgreSQL CPU use problem. We are using PostgreSQL 8.0.9 and when our JEE web application (in JBoss) is used in certain load increase conditions, top shows a slow increase ...
2
votes
5answers
955 views

How to diagnose a webserver locking on high load

I have troubles understanding what problems may cause the occasional hangs that the server gets due to sudden high load spikes. I am not a system administrator (I'm a PHP programmer) but since the ...
2
votes
1answer
39 views

Application Power

I need to run an application that would consume a lot of power on a laptop. Basically the app must be very power hungry. I know that running a real time games with heavy graphics would consume lot of ...
0
votes
2answers
416 views

Mysql: less than half of memory used. High load

I have an Ubuntu 8.04 LTS, with 8Gb memory, with dual E3110@3.00GHz, software raid on sata II. For a couple of monts now I try to tune the server and it seems that I'm still far from being done. ...
4
votes
1answer
461 views

How is load average related to CPU utilization?

I am facing a load average of > 3 since past 2 days. The CPU utilization is never above 40 % in all cases. Here are some screenshots of Server Density monitoring tool that I use. The process ...
3
votes
3answers
2k views

High Load - Low IO - Low CPU usage

I have a system whose load is rather high. As you can see from the top output below, CPU usage and I/O is negligible: top - 17:31:59 up 4 days, 2:34, 2 users, load average: 1.00, 0.99, 1.00 ...
2
votes
2answers
198 views

Server statistics (processor usage and bandwidth usage)

How can I find out how much of a load my webserver is under? I tried top but I don't know how to interpret the information it's showing me for CPU. While top may give me the CPU usage I also need to ...
1
vote
5answers
2k views

High server load

A Hudson server used by developers is having some timeout issues. Whenever Java is compiling (git is checking the modules, java classes are compiled, tested and copied to Nexus), something goes wrong ...
1
vote
2answers
141 views

How can a blade server best handle a large number of users downloading a static binary file?

I have a single blade server to work with (8 CPUs, decent bandwidth, running apache). Users will be connecting to the server to download a single file (either the 5mb or the 70mb version). What can ...
0
votes
1answer
170 views

slow server on ssh output of top

top - 21:15:43 up 2:28, 1 user, load average: 0.54, 0.50, 0.52 Tasks: 225 total, 1 running, 223 sleeping, 0 stopped, 1 zombie Cpu(s): 0.4%us, 2.9%sy, 0.0%ni, 96.5%id, 0.2%wa, 0.0%hi, ...
10
votes
4answers
4k views

Load Balancing a UDP server

I have a udp server, it is a central part in my business process. in order to handle the loads I'm expecting in the production environment I'll probably need 2 or 3 instances of the server. The server ...
0
votes
5answers
2k views

Server high CPU load issue! ( Cpanel + CentOS 5)

Our server cpu load is high todays sometimes reaches to 560! .. We have the lastest Cpanel/whm and the kernel is update!while the load average is : Load Averages: 39.05 75.01 45.33 the apache log ...
1
vote
2answers
341 views

PostgreSQL Left join select VS Normal select

I was wondering which is faster - joining several selects into one join select or actually doing the separate selects is faster ? I'm doing a task which has many tables(currently 4 but it'll increase ...
5
votes
2answers
322 views

explain server load

I have got a managed server with a AMD Phenom QuadCore 3000 + 8 GB RAM I heard that s.th beetween 1-2 server load is 100% workload. My current results there are: 1.27 | 0.8 | 0.78 and in the overal ...
2
votes
1answer
3k views

Disk IO causing high load on Xen/CentOS guest

Background I'm having serious issues with a xen based server, this is on the guest partition. It's a paravirtualized CentOS 5.5. I'm not sure if it's hardware or software related, or in between ...
0
votes
1answer
75 views

Load Sharing Regarding Large Websites

I have a question regarding Load Sharing for large websites. My Understanding: So if you have a website that has millions of fits a day you will need to have an architecture that can support this ...
0
votes
2answers
389 views

How to interpret Rackspace server diagnostics?

We've been having some trouble lately with our site timing out during times of high traffic. We're working on a number of things to resolve it. During this process I came across our server ...
0
votes
2answers
677 views

Debian, 2 NICs load-balancing or agregating with one same gateway

I have one server, with double NICs connected to one switch with the same gateway. Behind the switch we have internet. |Debian| -> eth0 -> switch -> internet -> eth1 -> same I don't understand how ...
6
votes
6answers
748 views

Site Goes Offline Every Day At Midnight - No One Knows Why

Seems every day a website I manage has been going online and offline between 12a and 12:25a. I have no idea what is causing the issue so I am seeking guidance on where to start. It is a Wordpress ...
0
votes
1answer
131 views

server busy - cannot execute new command

I want to understand this scenario: My server suddenly became busy and stopped doing anything new that I tell it to do: ls, vi, nothing works, its frozen. But I can browse through already open vim ...
2
votes
2answers
2k views

apache spawning too many processes despite maxclient and other constraints

Here are my MPM constraints: <IfModule mpm_prefork_module> StartServers 10 MinSpareServers 10 MaxSpareServers 10 MaxClients 10 ...
1
vote
2answers
242 views

Layer 4 Load balancing - TCP Handshake

I am newbie to load balancing concepts. This is regarding a Layer 4 Load Balancer. I would like to know if the packets intercepted at IP layer by the Load Balancer would read the TCP header ...
1
vote
1answer
65 views

Simulating load from GroupWise clients (MUA) on GroupWise POAs

We are looking to simulate the load of many clients sending mail, and we want it to be scriptable. The part that we are unsure about is if our possible message submission methods (SMTP and SOAP) are ...
0
votes
3answers
272 views

Problem with load Apache + MySQL

I have tried configuring both Apache and MySQL but I still get very high peaks in load: http://d.pr/aD9L I'm pretty sure these peaks are not caused by increase in traffic, because no peaks can be ...
3
votes
2answers
873 views

apache process count spike bringing vm to its knees

we have a few virtual machines we're using as a plesk hosting servers. one of them exhibits the following bad behaviour: apache process count goes sky-high (ive limited MaxClients to 80 to try to ...
1
vote
2answers
158 views

Test load on Web Server [duplicate]

I want to benchmark my server to the best configuration for Apache and MySql. I want you to ask if do you know any script that simulates various users browsing on the website? PD: I'm using ...
0
votes
3answers
81 views

Server impact of common shared files across hundreds of sites

I am working for a client running a HostGator Dedicated Server with hundreds of sites on it. Since there will be some common files between them I am contemplating doing the following: creating a ...
1
vote
5answers
121 views

Migrated to Dedicated Host. Site loads extremely slowly.

We have migrated to new Dedicated Host (iweb.com). We are using Drupal as a CMS. When I load a site from browser, the site loads in 40-50 seconds. We have no load on server (the site not yet ...
0
votes
5answers
220 views

new instances of java are created

I ssh into a server in my office, its running Lucid Lynx 10.04. I dont know why its running so many instances of java. Thanks This is the the console barf of $ top Tasks: 134 total, 2 running, ...
1
vote
2answers
1k views

How to determine approximate maximum number of requests?

I'm building a quite simple web application, and need to get some rough understanding of how much load my server can take. Of course, this depends on a whole lot of factors, but I just need a rough ...
1
vote
1answer
357 views

How to determine maximum server load?

How, I've got a Windows 2008 IIS 7 server using Quad-core processor (XEON) with 8GB RAM - I'd like to check what maximum load it could withstand? Is there any good way doing this? From your ...
1
vote
2answers
203 views

Geographic web+pgsql load balancing

My goal is (don't know if this is possible, that's why I'm asking): have two separate geographic locations. At each location, a web server and a postgres database run. The application is the same at ...
0
votes
3answers
1k views

How do I invoke a Perl CGI script when the user requests an HTML page?

Is there anyway to invoke a Perl CGI script when an HTML page is requested to server? Just like a script can be tied to an action, is there anyway to tie a script to "Request for page"