Website Extremely Slow To Load/doesn't Load (numtcpsock)
Dec 20, 2007
I've been having trouble with my VPS for a while now. In the QoS alerts page in Virtuozzo it seems to be a problem with numtcpsock and tcprcvbuf, mainly numtcpsock.
Copy these into the browser:
i18.photobucket.com/albums/b106/gnatfish/qosnumtcpsock2.jpg
Today, without any change on the server side my single running website on my server started running low. After checking the running processes I realised I have these 8 processes running with high cpu load something that didn't had before.
4245 user 20 0 283m 103m 10m R 85.1 0.3 6:44.88 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4243 user 20 0 241m 68m 8736 R 83.8 0.2 6:33.45 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4259 user 20 0 254m 82m 8720 R 83.5 0.3 6:11.00 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4244 user 20 0 282m 103m 10m R 82.1 0.3 6:46.49 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4247 user 20 0 248m 76m 8712 R 78.8 0.2 6:50.31 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4264 user 20 0 258m 85m 8712 R 72.9 0.3 6:49.83 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
apache error log doesn't show any warnings, errors.
They don't appear for some time if I kill them (a day or more). But it repeats again and again. One day there were 8 similar processes in total in max which used all 4 cores at 100% (and even ssh console was extremely slow to do something there).
I think that somebody is trying to make a small attack of some sort but I need to check it first. I tried to look at apache logs but there were too many posting requests from different IPs and no dublicates for little period of time so I had no success.
Anyway, that script worked for us for 4 years already and we didn't have any problems with it even on our old single core P4 2.8 ghz.
way to make sure is this an attack of some sort or just this script doesn't work correctly on our new machine?
Are there any ways to get IPs of visitors who are running posting.php with CPU overloading?
I'm having the oddest issue. For some reason, some of the websites on my server load fine, and some take a really long time to load (2 minutes).
Now, the server load is fine, and the size of the sites aren't the issue either. I've restarted Apache and a couple more services, and still the same sites seem to load very slow.
What could be causing this since it's only effecting certain websites?
I dont know much about what could be cuasing this so i come to you for advice, i am currently at wired tree on their VPS384 package with 348MB of ram and my site is really slow to load [url]sometimes it is so embaressing to show people i just dont bother, i am sure this is deferring visitors from my content how can i speed this up?
I can add more ram but it will push the price and if the price goes too high i might aswell move to a Hybrid with wiredtree.
My server gets 300 - 600 concurrent connections to http port 80, has a CPU load of 1 - 2%, has practically all RAM of 1 GB used, is running apache 2 and centos 5.
It tends to get slow and when I ban IPs that use many connections to my server (raping it), it becomes fast again. But soon after that new ******* users come which I again ban and the process repeats itself
I'm starting to think that maybe I just don't have enough RAM to handle them because it seems at least some of those users are legit. I don't however have even that much content that needs to be cached so I'm not sure what good RAM would do but perhaps apache just needs more.
My server has a small load (about 30% of it is being used) and it is still running very slow. When I reboot it runs fast for about 5-10 min, and then it is back to slow. I reported this to hivelocity and the responded with " The problem was one of your apache process was pegged out. Restarting apache resolved this issue. If you still have issues check top and run lsof on the process ID that is pegged out."
and after it continued "It will continur to happen until you isolate the source of the issue and stop it.
The load looked fine just now, so I am not seeing an issue.
What you can do is when it pegs out (simply restarting webserver will get it back up but not resolve) run the following command:
ps -aux
Look through the processes to see what is calling it."
Whn I run ps -aux i see a username on my server. i suspended that username but the problem is still happening.
Intel Xeon-Woodcrest 5148-DualCore 3 gigs of ram 250GB Western Digital WD Cavia
I run a forum with a modest amount of traffic along with a content management system handling the other sections of the website. I'm pretty sure the forum isn't the problem though.
The server load for this machine is almost never above a 1. Right now as I type this the load is at 0.17, but it's unbearably slow! Taking up to 16 seconds to load a single page.
What could be causing this? I'm a server n00b. Is there a setting I should be doing to one of my servers configuration files to make it run faster?
My website gets 30-40,000 visitors a day and these problems always occur during peak hours. It would be easier to deal with this though if not for the fact that the server load is always so low. How is it possible for the site to get so slow while the server load is always so low?
I am currently hosting my website on one server with the specs:
2.8ghz Dual Quad-Core processor + 8 gigs of ram + two 500 hard drives with a 50 mbps unmetered bandwidth package.
My current problem lies in high server loads and very slow server performance throughout the day.
I am considering migrating over to The Planet onto server with the specs:
3.0ghz Dual Quad-Core + 18 gigs of ram + two 50gb hard drives with 2TB of monthly bandwidth transfer.
In an attempt to have great bandwidth pricing and server performance, I plan on downgrading my current server with my current host to a lowe-end server and keeping it only to host my VIDEO and MUSIC files with the 50mbps unmetered package. The Planet will then host my database and all other web related files on their new server.
Is this a good idea as an attempt to save money in bandwidth costs and eliminating my server lag issues?
I was offered a setup of a separate web and database server at my current host but from what I have read, no one touches the performance and reliability The Planet has to offer.
I'm hosting about 6 private websites on my server, and some have problems.
My biggest website is a vb forum with 30.000 members and 1.5 million posts.
When i browse with firefox i see that vb forum loads fast, but phpads which is integrated on the top and footer loads very slow. When i browse with IE, it takes like 10 seconds before the whole site is loaded and sometimes IE even crashes.
When i try to login on another website / admin panel (oscommerce), i get a mysql gone away error, that means timeout. But why does it show that? I ran mysqlreport and can't find anything why it should display mysql gone away. # ./mysqlreport MySQL 5.0.15-standard uptime 3 19:36:47 Mon Feb 5 11:08:10 2007
__ Key _________________________________________________________________ Buffer usage 78.94M of 96.00M %Used: 82.23 Write ratio 0.60 Read ratio 0.00
I recently started hosting a large vBulletin forum (14,014 registered users... 30-60 online at a time) on one of my dedicated servers. When there's a lot of activity on the forums, things start getting really slow. There will be like 50 php-cgi processes running. Some users get blank pages, others get this message:
Notice: Undefined variable: errfile in [path]/forums/includes/functions_log_error.php on line 163
Specs of the server are: AMD Athlon 64 3000+ 160GB SATA HDD 2GB DDR2 RAM FreeBSD 6.2 (Hosted at AwkNet)
Could there be any Apache modifications I can make to increase performance, or anything else I could try?
I've been having a few issues with the control panel navigation is running slow even though I have heaps of resources available and free. The server is located locally and have no problems surfing websites attached to the same server.
When I login as admin, it can take 25 seconds to load into the first screen.
CPU GenuineIntel, Intel(R) Xeon(R)CPU E5649 @ 2.53GHz Version Parallels Plesk v12.0.18_build1200140606.15 os_CentOS 6 OS CentOS 6.6 (Final) Memory Available 6GB used 2.5-3GB HDD: 300GB/ approx 130GB Free
I have tried issuing a /etc/init.d/psa restart command and has made no difference.
I just added a database server in private network and moved the database for Vbulletin Forum to this server.
But some how, the Forum is loading extremely slow compare to before ( when it was on the localhost). Also, Compare to another website on server (using local database) it is much slower.
One thing good is the load is lower
2 servers are connected via 10mbs private link, both servers are at Softlayer.
I am testing out a proxy we have in NY, and a proxy we have in Japan. The computer that I am using is in Toyoseu, Japan. What I want to know is why, when navigation to the website: stuttgarter-zeitung.de/stz/page/detail.php/1693599
it takes longer to load using the Tokyo proxy. Normally, I would think that it would be shorter than having to go to the NY proxy, get the site, and then come back.
I have a problem with one of our websites. For some reason, only that one website won't load and shows an error page. This domain is not propogating, nor has it had any changes to any DNS records lately, and it was working around five minutes ago.
Limestone's support is extremely slow. I just got a server with them to host VPSes, so I was inquiring about additional IPs in case I needed them.
Their first two responses were within 4-5 hours, which is bearable. However, yesterday, I actually needed to order more IPs and posted a new reply. I have yet to receive a reply after over 12 hours and my client has been left waiting to receive the additional IPs he ordered.
I haven't been with Limestone long, and I haven't had much other experience with their support, but I was unsure what else to do other than post this here and hopefully get a resolution.
I know their servers are unmanaged and pretty cheap, but I think they should still take the time to answer tickets in a decent amount of time.
Has anyone had similar experiences with Limestone?
After the installation I noticed that the server was very slow so I did a performace test on disk 2, here is the result: hdparm -tT /dev/hdd first gave me: Timing buffered disk reads: 6 MB in 3.52 seconds = 1.70 MB/sec Timing cached reads: 488 MB in 6.92 seconds = 70.57 MB/sec
then gave me: Timing cached reads: 392 MB in 2.01 seconds = 195.01 MB/sec Timing buffered disk reads: 2 MB in 3.62 seconds = 566.16 kB/sec
So I assumed something was wrong with the disk and replaced it with an 80 GB IDE disk (same setup as before) and got the following results: hdparm -tT /dev/hdd: Timing cached reads: 4 MB in 4.69 seconds = 872.73 kB/sec Timing buffered disk reads: 6 MB in 3.72 seconds = 1.61 MB/sec
It feels highly unlikely that there is something wrong with both of the IDE disks. So what can be the problem? Can you think of anything?
Anyone know of some good server load testers ( commercial )?
Im not looking for application based load testing, I need real web server load testing... need to see how much traffic this one site can take before it cries.
I have just gotten a new server and the ping results were pretty fine. However, when it comes to the download speed its horrible. What could be the issue?
I'm running into a problem with a relatively new (2 months old) server. I have just a few accounts on it, and I'm already noticing unusual loads, for the... load. After some benchmarking with bonnie++ (and plain old "dd") there is clearly a problem.
Isn't a write-speed over 7MB/s reasonable to expect? Also look at the low CPU times...
Anyway running the same test on a similar but older AND busier server showed much better results than this. In fact dd'ing a 1GB file from /dev/zero "finished" in about 10 seconds but then pegged the server at 99% iowait (wa) for a full three minutes (until done being written from cache I assume), bringing load to 15.00
That's all the info I have so far... the data center just replaced the card (which gave no errors) with no effect. Running these benchmark tests is about the extend of my hardware experience.
In the last few days the responses from Plesk's XML API have been extremely slow. It's now taking an average of 45 seconds to handle an XML API request where it used to be more around 5 seconds. What would cause that? What service handles these requests on the server so I can try rebooting it?
I'm having trouble with a new server. It's a dedicated (Q6600 + 8 gig RAM + 4 x 250gig in Raid 10 + Centos 5.3 64bit + Cpanel).
The machine is way overpowered for the traffic going to the site.
The server load is rarely above .10 and often closer to zero.
I'm getting periodic extreme slow downs. Web pages will take 30-60 seconds to load (or longer). SSH will timeout, or if I can connect, it will take seconds (sometimes 10-15 seconds) for key press to register in the SSH terminal. Pop3 times out, etc.
This might last for 15 minutes or 3-4 hours. Then, everything will start running like a champ again. Traceroutes to the server during the slow downs haven't shown a problem between the server and where I am testing from (have connected from multiple proxies and remote sites to eliminate my local internet connection).
I'm looking for any advice on how to trouble shoot this. Hardware? Software? Configuration issue?
It is definitely not a capacity/load issue. There have been no spikes in web traffic. The opposite, this is a very slow time for my site, which is why I moved to a new server in May.
I would like to know how to check load via ssh and check files causing load?
I want the ssh codes for 2 different set of control panels, one with cpanel+whm and other with kloxo+hypervm
and I would also know how to check the files causing the load, such as some files could have been interrupted while processing, so they could be causing load some times, so I want to stop such processes if any are running on the vps on my friends accounts
