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2
votes
1answer
134 views

Is there an effective way to monitor the load on each switch?

We have about 200 IP phones in our building and I realize we got more complaint about the phone quality after we switched our internet from 50Mbps to 200Mbps Up/Down. I know there's a possibility ...
-1
votes
1answer
83 views

High resolution load for Linux

The common way to determine load for Linux is via uptime, which processes /proc/loadavg. $ cat /proc/loadavg 0.64 0.68 0.69 1/558 3043 However, this information is the load average for the past ...
2
votes
1answer
87 views

2 identical servers, one slower (higher load) than the other

I have a 3 servers setup, one frontend HAproxy sending requests to 2 backend servers. The backend servers use identical hardware and also identical software (Debian 6.0.6). They are similarly ...
1
vote
1answer
115 views

What would cause an average load of 10-30 (rather than 10-30%) [duplicate]

Possible Duplicate: How to understand the memory usage and load average in linux server I'm not sure whether this would be better titled "Why would Nagios need to monitor a load reaching ...
0
votes
1answer
25 views

Listing all httpd accesses

I have a server with several domains. The server is having a heavy load but I don't know what domain is the guilty one. Is there a way to list on terminal the load per server? or what servers are ...
1
vote
4answers
766 views

Apache causes ridiculous load on server

I have apache2 running on a server. Today there were a lot of http requests (but not unusual) and somehow the load average went up to over 200(!!!). Obviously the website was down (not reachable). ...
9
votes
3answers
643 views

Load avg weirdness on Linux Ubuntu

In past few days I've been trying to understand the weirdness which is happening in our infrastructure but I haven't been able to figure it our so I'm turning to you guys to give me some hints. I've ...
3
votes
2answers
681 views

Laggy server, seems iptables is doing the load

I added a few thousand IPs packed in multiple /24 classes to a CentOS box and because of that I am getting scanned day and night. Since this server will be a workhorse and it will only need to be ...
0
votes
0answers
105 views

cannot find high load cause

I cannot find high load cause. CPU usage is not high. Maybe disk is causing high i/o, but disk utilization is not that high too. The peaks around 4:30am is backup time and not that important.
2
votes
4answers
597 views

Why my server has high load despite mere 1.5% CPU usage

In this is what whm apache status says: Current Time: Sunday, 23-Dec-2012 05:13:40 CST Restart Time: Saturday, 22-Dec-2012 13:38:12 CST Parent Server Generation: 9 Server uptime: 15 hours 35 minutes ...
3
votes
1answer
80 views

Daemon to manage maintenance scripts

I have a bunch of "night shift scripts" to maintain a server. The problem is, the "action window", when those scripts may run is always different. Sometimes there's nothing going on for minutes and ...
4
votes
2answers
267 views

High Server Load cannot figure out why [closed]

My server is currently running CentOS 5.2, with WHM 11.34. Currently, we're at 6.43 to 12 for a load average. The sites that we're hosting are taking a lot time to respond and resolve. top doesn't ...
0
votes
1answer
147 views

Munin load from several servers in same graph

I'm attempting to compare load averages from several severs using using Munin 1.4.6-3ubuntu3 by combining multiple hosts in a single graph. My attempt: [domain.com;Totals] load.graph_title Load ...
0
votes
2answers
219 views

Unix VPS server going down at almost the same time every day

My server load seems to be really spiking and many times the server goes down at the same time each night (Around midnight). I have about 20 cPanel accounts hosted on it and have tried everything I ...
1
vote
2answers
362 views

How to schedule job to run on Linux/Unix only when system is idle?

How do I schedule a job to run only if the system is idle? E.g. I want to run some cleanup task every week, but only if it does not interfere with other users. I know I can schedule a task to run ...
0
votes
0answers
272 views

High Load average in Linux kernel 2.6.26 even cpu time is available?

I have 2 machine. both the machine I have kernal 2.6.26. Both machines are getting more then 300 load averages even cpu idle time is 80%-90%. In the wa column also very less. The followings are top ...
3
votes
2answers
231 views

Nagios load spike every 7 hours

I have a NagiosXi server monitoring 631 services on 63 hosts. Every seven hours the load on the server spikes up to 20ish and then gradually falls back to near-0. There are no cron jobs running every ...
1
vote
1answer
626 views

Locate cause of high load. Checked CPU, Memory/Swap and IO - all low. Running Nginx, MySQL and PHP-FPM on this Ubuntu 12.04 box [duplicate]

Possible Duplicate: 100% CPU when doing 4 or more concurrent requests with Magento people. This is my first question, but this community has been helpful to me hundreds of times, so thank ...
-1
votes
1answer
352 views

ubuntu's average load never below “0.00 0.01 0.05”

I have several ubuntu 12.04 VMs running on a ubuntu 12.04 KVM host. Those of the virtual machines that are totally idle with no services (except syslog and the other "small" standard stuff of a fresh ...
0
votes
1answer
33 views

When server is booting high load?

From CSF statistic my server load in 30 days is never higher than 3, I have 8 core cpu and 3 sites with 10 000 unique visits per day. When I reboot my server, and I log in into console, when he is ...
2
votes
1answer
321 views

Load average relation to cpu threads and cpu cores

Is load average related to CPU ThreadS OR CPU core? i am having a xenon cpu with 8 cores and 16 threads. How much can be the acceptable load average? Sometimes Load AVerage reaches 11. so does ...
0
votes
3answers
333 views

how fix high load in this vps?

i have a 512MB vps runing on debian. I offen get high load alert from lfd titled like this: lfd on *.com: High 5 minute load average alert - 8.43 here is 3 logs I made in 3 alert: ...
0
votes
1answer
215 views

monitor load average every 1 or 5 seconds and do some actions if it's higher than ex. 5

How it can be done without writing additional daemon? P.S. I can't use cron because I need lesser time intervals. P.P.S. Debian 6 x64
1
vote
0answers
302 views

Squid on windows loadbalancing only to one server

After thousands of googles and trying days i cant get the load balancer/failover in squid on windows to work. Iam using squid 2.7. My webservers are 2 single NIC lighttpd and one dual nic lighttpd. ...
0
votes
2answers
519 views

How do I properly implement Apache Solr in a clustered Magento environment?

I'm currently working with a Magento Enterprise 1.12 installation running on a pair of clustered Apache web servers. Both of my web servers draw from their own databases on separate servers which are ...
4
votes
3answers
556 views

Which user is hogging the MySQL database server's CPU?

I maintain webhosting servers and more often than not sometimes a server slows up as a result of increase in load or a large amount of CPU resources used up. I've observed that its the MySQL usage ...
5
votes
5answers
975 views

Ubuntu Server 12.04 CPU Load

I have a Server (2x Hexa-Core Xeon E5649 2.53GHz w/HT with 32GB RAM and 20000 GB Bandwidth) running Ubuntu Server 12.04 LTS. The server runs LAMP and serves one website only, the estimated number of ...
1
vote
1answer
249 views

Ubuntu 10.04 - high load , low cpu, IO, and no swapping

Ubuntu 10.04 64bit - Kernel 2.6.36 Running as a Xen 3.4 guest. 8GB memory , no swap being used, no IO wait time, and 0% cpu. Yet high load. Why is this: 15:11:24 up 5 days, 3:22, 2 users, load ...
0
votes
3answers
241 views

Apache stops serving requests when connections increase [duplicate]

Possible Duplicate: Apache performance issue, after “1000 total children” Apache no longer responds to HTTP requests. Not MaxClients issue? The values for MaxClients, ...
2
votes
1answer
354 views

Limit linux buffer usage by process

We have a production server running different process which take advantage of existing linux buffers to improve their performance, such as a mysql server. This server has exhaustive IO load. On this ...
7
votes
3answers
554 views

Do you run antivirus in mail server?

Considering a normal e-mail volume (I don't know how can I define that) of 10000 users in a mail server does it make sense to scan emails for viruses? I guess it should affect the server load but in ...
0
votes
0answers
83 views

Load balance using every second request using elastic load balancer on EC2

I might be trying to solve my problem the wrong way here; but we have a backend service that run calculations for about 15 seconds on 100% cpu usage. The idea was to have two EC2 instances fronted by ...
-1
votes
2answers
197 views

Is this Mysql database server load too high?

I'm running a php website. I have two servers. Please help me to check is this Mysql Database Server load too high? I found the mysql CPU usage is always higher than 100%. Any suggestions to ...
1
vote
1answer
284 views

/proc/loadavg shows incorrect huge values

On a shared web server I have a strange readings in /proc/loadavg: # cat /proc/loadavg 2145237816.60 2145245358.02 2145270263.79 10/1409 410568 The load is in fact normal and server is very ...
5
votes
2answers
566 views

Load Average above 20 for single core vps on debian

OS: Debian 6.0 RAM:3072 M, CPU:single core. top: top - 08:56:43 up 21 days, 12:37, 1 user, load average: 28.38, 22.48, 15.95 Tasks: 8 total, 1 running, 7 sleeping, 0 stopped, 0 zombie ...
1
vote
2answers
255 views

how to control system load of a particular process? eg. Java

So Java has been hanging our systems. Our developers are still looking into this but as an Admin what can be done. On a dual socket system with altogether 8 cores, Load peaks at 40's.. On average ...
2
votes
1answer
380 views

Ubuntu: irqbalance - new install - does it need a reboot?

Ubuntu 10.04 kernel 2.6.36 some of our VPS's were crashing the last few days due to cpu load with Java (cpu_hung for 120 seconds errors on console) installing irqbalance seems to have resolved the ...
4
votes
1answer
183 views

What's the effect of iptables/ufw deny filters on server load?

I'm wondering how scalable it is to add IP addresses or subranges I want to block into ufw. E.g., I do this whenever I discover a particularly bad bot or server farm. As my list grows, I wonder how ...
0
votes
1answer
64 views

How can I estimate load (reqs. per day) of a certain server on the net? [closed]

I'd like to have a very rough estimate of cirtain server load on the net. Are there any tools or services that investigate internet somehow? Thanx
0
votes
2answers
627 views

Current Load is WARNING - why?

On a VPS with 1 CPU core and 2GB RAM, I run a mysql+apache2 for a low traffic website. Sometimes the machine slows down or stops delivering through apache or mysql. That's why i set up nagios which ...
1
vote
0answers
66 views

Tools for managing crontab load

I am running a large number of servers that crash periodically because cron jobs have been managed badly - essentially there are cron jobs that run (for example) very frequently and/or produce high ...
0
votes
2answers
175 views

load balancer topology [duplicate]

Possible Duplicate: Can you help me with my capacity planning? I am setting up a Load balancer with two backend webservers and one backend mysql server. Is it a good idea to have dedicated ...
-2
votes
2answers
90 views

Will my setup be sufficient for the load I am expecting? [duplicate]

Possible Duplicate: Can you help me with my capacity planning? I received an email the other day from one of the websites in the global top 100 saying they are going to link to me on their ...
1
vote
1answer
495 views

What could cause a sudden extreme increase in io load on my postgres database server?

I have a postgres server running since years and the load have been more or less constant (load average around 0.5-5). Yesterday it reached an average of 110! It is a virtual server running Debian ...
0
votes
2answers
43 views

Load balancing between windows 2003 standard (4GB) and enterprise 64GB

Does anyone know if its possible to windows load balance between windows 2003 standard (4GB) and enterprise 64GB? Its for a web farm running iis
-1
votes
1answer
919 views

New CentOS/cPanel servers showing high load averages at idle

I have taken delivery of two identically specced CentOS/cPanel servers, showing the same behaviour of a resting load average of 1.30, 1.21, 1.16 and yet the CPU is sitting 100% idle. Hardware: ...
1
vote
2answers
906 views

php-fpm: very high server load

Since today my webserver (nginx + php-fpm + mysql on a VPS) is very slow. htop says: 1 [|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Tasks: 63 total, 13 running 2 ...
0
votes
1answer
82 views

Why would reducing capacity under load improve latency on a server?

In this talk at Berkeley, Jeff Dean's slides contain the following note, about a third of the way through the presentation: Non-intuitive: remove capacity under load to improve latency (?!) The ...
1
vote
1answer
254 views

EC2 configuration for medium load service on Django

I have created a very basic Django application which puts an email to the database (Coming soon page for a startup). I launched a t1.micro instance to try out which load it can carry out. ...
3
votes
4answers
799 views

Optimizing apache server load

We have an issue with a dedicated server load. We have 16 processors with 4 core @ 2.40GHz, if I understood correctly cat /proc/cpuinfo output. Unfortunately, I don't have access to free -m or ...