Ubuntu Servers :: High Load On Webserver After Upgrade To 10.04 From 9.10?
May 10, 2010
I upgraded webserver to new ubuntu server 10.04 (x86-64). After upgrade the increased load from 0,3 to 1,4. On webserver running phpbb, which generating slow quieres, which not before upgrade to lucid. HW conf: Intel Core i7, 8GB ram, WD Raptor 10k rpm. Week17 upgrade to new version.
In order to pass PCI compliance I need to upgrade our webserver from php 5.3.5 to php 5.3.6. I found this: [URL] however it doesn't seem to work. My best guess is due to the fact I have 64bit server. Is there something else I can do without going through a compile?
I am having a problem with the server that I use to host my personal site. The load average quite often spikes to exceed 1.00 for the 1 and 5 minute intervals, and the 15 minute interval gets above .5. This occurs while the server is idle, serving very few or no requests and with the CPU 99% idle with <1% IOWAIT usage. I have checked top and vmstat, but neither one provides any useful info. Top continues to say the CPU is 99% idle, and vmstat says that there are 0 runnable and 0 blocking tasks. Occasionally, vmstat will say that there is 1 runnable task, but this doesn't even coincide with the load average spikes. I have already searched for other solutions to this problem, but everything I have seen says to use top and/or vmstat, but those aren't showing anything out of the ordinary. Can anyone recommend anything else I might do?
My server has a Pentium 4 HT 3gHz processor, 2GB RAM, and runs Kubuntu 10.10. (The reason it runs Kubuntu instead of Ubuntu Server is that it needs an X environment so that the Nvidia driver can initialize and put its graphics card into a power saving mode.)
how to setup an Active/Active Load Balanced and High Available (If one of the nodes is down the system still runs) MySQL cluster. I have found quite a few howto's but I have some things unclear in my mind. I found a few solutions like this one: [URL] or this: [URK] Those are using two or four MySQL nodes, two Load Balancers to avoid a single point of failure but only one MySQL cluster management server. What happens if the MySQL cluster management fails?
I have also found a "MySQL Master-Master Circular Replication" technique but from what I read, with this option there is a chance that conflicts will arise if node A and node B both insert an auto-incrementing key on the same table.
I just upgraded my server from 9.10 to 10.04. I have ISPconfig installed on it and worked like a charm until the upgrade. Now when I point a browser to my site the page just hangs as if it is trying to load it but I never get an error nor does it load the page. I have tried to restart apache using /etc/init.d/apache2 restart in which I receive an fail error:
root@ubuntu:~# /etc/init.d/apache2 restart * Restarting web server apache2 (9Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down
[Code].....
After this I still get the same results when trying to load the page in the browser.
I cannot load anything in the www root or virtual host files.
Im running drupal on my webserver and, this morning all of the sudden I went to edit a node and now I cant load the website in my browser at all. I can ping the machine and SSH into it fine, but it will not load the website in chrome or IE, I have no idea whats going on here.
Edit: I did a 'service httpd restart', it took 3mins to restart, is this normal? After I did that it loaded once, not even all of the page, now its doing the same thing again.
I have a debian system with the following version you can se bellow. My problem is that one one single core of 4 it's running 100% all the time and i cant seem to find out why. The load is also high(load average: 0.91, 0.75, 0.40) because of this. This keeps happening even after reboots. The system if freshly installed twice and the same problem occours as soon as it boots. Something called kworker is running and causing the load / CPU load, is that normal for a fresh install??
root@Cyberdyne:/# lsb_release -da No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 8.2 (jessie) Release: 8.2 Codename: jessie
Since upgrading from 9.10 to 10.04, my system is noticeably less responsive and exhibits halting behavior for at times 10s of seconds. There is nothing obvious in the various logs that I can find. The only objective indication I can find that demonstrates that something is seriously wrong is that my load average never drops below 0.5 and is often over 1.5, even at idle. In this situation, top/ps/whatever shows very few processes running (usually just top). This suggests to me that either the new kernel scheduler is horrible or that something new is resulting in blocking I/O or other uninterruptable sleeps.Typical top output:
i've been using 10.04 since may and it's been good to me thus far. BUT recently, i've been experiencing unusually high system loads. it will happen at random it seems. for instance, it just did it a few minutes ago when i turned on and mounted a external firewire drive. i also had ogmrip open, but NOT running as well as transmission and pidgin. yesterday, i was encoding a rather big movie with ogmrip and around 25%, the system load quickly increased to 10 and held there until i force quit ogmrip. it went back to normal after the force quit.
a previous night, i was installing the popular ubuntu themes via the terminal. at the same time, i was also using ogmrip and the system load shot up during the download/install and held there the rest of the night. sooo...unless it's somehow related to ogmrip i don't know what's going on. it even did it when ogmrip WAS NOT processing any video, just simply open.
It's the fourth time now since Maverick that I had to cold reboot my system because it was totally unresponsive. The system monitor in my taskbar shows 100% on the background blue graph (I guess that's just one core then) and almost nothing on the other core. On the last freeze I managed to open 'sudo top' before it went totally unresponsive and saw that there was no high CPU usage at all, but a load average spiking above 24. Also the swap seemed to be full although my machine usually never uses swap. I was watching a movie with VLC this time, but I'm not sure if VLC ran the other times my OS froze. I made a snapshot with my cell phone: [URL]. How I can prevent a process from causing so much load?
I wrote a script to extract and get the the name of *.gz in a foler . Since running that script every 10 minutes, load average on my server increases more than 10.I checked with 'top' and it showed many D process.
on an old server of mine, as soon as apache is started, the load average that I get to see with 'top', that normally is under 1, now just steadily climbs up and up to easily 150, in fact disabling the webserver from serving any webpage. I've checked netstat, and I'll try to upload the output. The ip's that are in there I've blocked with iptables. But that doesn't help or so it seems. I see nothing weird in the error logs. As soon as I stop apache, the load goes back to normal. As soon as I (re)start it, up it goes again. What can cause this and how do I get rid of it?
p.s. It's an old server, fedora3 or so, and I've got a new one to which I'll transfer the domains, but until that's completely done, I'd like this one to run as it has for years...
The load average is almost 1.06, but cpu is not 100% utilized... I am just wondering why load average is 1.06 in that case still ? (well i monitored cpu for long time, it never exceeded above 40%)can anyone explain the reason behind it ? Also is the system over utilized in this case ?
I am having Red Hat LINUX 5 Enterprise Server and facing problem regarding very very high server load (load average is going high up to 60-70)due to which server is getting hang.
Just noticed that during calls skype uses ~30-50% cpu, + pulseaudio uses ~20%. I found some old threads on this like [URL] Or [URL]. The former suggests to purge pulse and use alsa/oss instead. The latter suggests changing mic in skype to DeviceXX and tweak the pulse.conf There's also a launchpad bug on that with status Confirmed->invalid (due to "problem fixed in skype 2.1 beta") but looks like it's not (I am using 2.1 beta)
1. Does any1 has this problem? 2. I can't try 2nd link's approach as my skype has only PulseAudio in the settings, so I can't select Device or anything else! 3. Should I try to remove pulse in favor of ALSA? I'm pretty happy with pulse otherwise that this issue, I use it to record sound out of my sound card and I'm not sure if I can do this with alsa/os.
During downloads, the top command shows the Firefox process at 100% CPU. Yesterday I tried to download an .iso image. After a few hours the Firefox window would not refresh nor would it respond to input. I tried the wget command. It used negligible CPU time and completed in 28 minutes.
This problem is easy to reproduce because it happens every time I download a file in Firefox. It also happens when I use a fresh profile to run Firefox without any extensions or plugins.
I have a apache cluster with more than 10 nodes, based on ldirector and heartbeat. The problem is that I cannot predict if my nodes will handle the traffic in the next day (hosting a website based on daily campaigns). So I decided to limit the number of active connection on the nodes (from apache), but this is only a temporary solution. I want to create a page that will appear to users that are getting over the limit. Has anyone made this before? Can you tell me how is it possible (I don't want a how to, just a starting point to study)? I think squid can do it, but I don't know how to search for it. To give you an example of what I want, you can see the same thing on deviantart.
I have High load on my server and my investigation shows nothing (so i believe that my investigations is wrong ), the load average in this moment is 10.13, 9.47, 8.24. , mentioning the below.
- The disk utilization (all the disks) is near 0, as the result of the IOSTAT - There is no blocked processes (as a result of VMSTAT). - I have two processors (dual core) , the maximum load average should be something around 4. - The server always have above 8 load average in all times interval.
btw , my OS is RHEL AS release 4 (Nahant Update 7)Kernel :Linux 2.6.9-78.ELhugemem #1 SMP i686 i686 i386 GNU/Linux
I recently installed Centos-5.3-x86_64 in a PowerEdge2950 machine, to serves as an ftp server using proftpd-1.3.2. I noticed that the CPU load is much higher than the days when I was using RHEL-4.7-X86_64. In the past, CPU load get higher than 100 only when there're about 400 online users. But in Centos-5.3, the CPU load gets higher than 150 when there're 200 users.
The details of the server machine: Intel Xeon E5430, 16 GB RAM, 1.8 TB as a RAID disk, 400GB hardisk used to installed the system.
I am running a CentOS 5.6 32 bit installation under VMWare ESXi and have been experiencing some very high load values from time to time. The server is running multiple installations of gameservers, and the load fluctuates from around 1 to 9, with more or less the same amount of players playing (give or take 5-10 of a possible 80). I've been running DStat with almost all possible metrics, and, except for the large fluctuations in load, nothing else out of the ordinary seems to happen when load is rising. (Log data can be provided, if anyone wants to see it). Disk IO, Network throughput, memory consumption, CPU usage, process count, all stay at the same levels when the load is 1 as when it is 9. How I can begin to troubleshoot this, and find out why the load goes to such high values?
I posted this question a while ago but haven't had any luck getting it answered so I reworded everything to make it more clear. I started an Ubuntu web server on an old work laptop. The purpose of this server is to host a small file-sharing site, a forum, and a wiki. I have no prior experience with command line Ubuntu but am trying to figure this all out.
So far Ive setup the LAMP server, so apache, mysql, and php are installed. Ive also installed phpBB3 and Mediawiki. Both phpBB3 and Mediawiki are able to open from inside my LAN. I also have SSH setup and am able to use putty to manage the server from inside my LAN. Mediawiki runs slow internally but this is a secondary concern.
Externally to the LAN I can access the webserver using SSH(but sometimes it is too slow for anything that opens up such as nano or the SQL password prompt to display and the connection drops). I can also browse to the site and see the default apache welcome message. But I cannot open the mediawiki or phpbb site. Both will sit indefinitely and not open. The access log on the server shows that the request is being passed through though.
how to create an entire server from scratch using a minimal install. I know Ubuntu Server 10.04.1 comes with packages that can be included during install but for the sake of learning I only installed SSH access.
I was able to get Apache2, MySQL, PHP5 installed and running fine. What I'm trying to do next is setup DNS so I can point fragdata.com to my Ubuntu server and have other people see my test site.
I have registered the nameserver ns1.fragdata.com with my IP and updated DNS in my registrar. I followed the tutorial but "dig fragdata.com" gives me the following:
I just posted about this in this thread, but as the other thread was started by a KDE user then I thought I'd post here as well. I've had high CPU usage for a few months now - probably since trying the 0.9 branch of Compiz then dropping back to the default openSUSE builds (XOrg and gconfd-2 running a Core i5 at about 30% on every core*). I've now finally found a solution after deciding I wanted to fix it once and for all.
Once again, the Ubuntu forums come to the rescue with this thread (I don't like the distro as a whole, but I do find the forums useful!). I'm using Compiz, but it turns out that Metacity was running as well. A quick "killall -9 metacity" and the gconfd-2 process has vanished and XOrg settled down to its normal 1-2% (which is reasonable when I've got a Conky config refreshing every fraction of a second to repaint a sound visualiser!). Now I just need to find out why Metacity starts when I'm using Compiz...
* according to Conky's per-core graphs, although top only reported 15% overall and the Conky "top 3 procs by CPU" reported a measly 3% for each process, so someone's maths was out somewhere!
I have a Nagios server with a lot of hosts and services; around 400 services (in all) and 150 hosts. Most of these services are programmed in bash language. The problem is the server has a high load average; between 5 and 11. The server has the next features:
- Intel Xeon 2.66GHz Dual Core - 4MB cache memory - 1GB RAM memory - 50GB hard disk
Is this load average normal? Should I program the plugins with C?
I have several CentOS 32-bit VMs running on ESX 4. Those that were updated to the most current patch level ("yum update", accepting all updates available last week) started showing load average of ~0.4 when completely idle. After comparing the problematic VMs with those that show zero load average at idle, and then modifying them in all kinds of ways, I narrowed it down to the combination of a recent kernel patch (2.6.18-164 is fine, 2.6.18-194 is not) and E1000 network adapter. Replacing the network adapter on a problematic VM with VMXNET3 fixes the load statistics.
I have two servers on my network One with ubuntu 9.10 server And one with openSUSE 11.2.The ubuntu server is my webserver and runs phpsysinfo and my website. On the openSuse server i have a webbased application and some files that i want people to be able to reach by using mydomain.com wich points to my ubuntu server. Is there any way to do this?
I am planning to setup my own webserver using webmin, but from what i've read i apprently need two harddrives. one for the OS & one for the data. can i just partition my harddrive into two because i dont have another hdd lying around. i also just want to note that this is my first time trying to do something like this sooo I rly want to try to set up my own server . As a side note ill list the specs of the comp i plan to use as a server. Pentium 4 2.8ghz, 1gb DDR, 80GB 7200RPM HDD.