My Server Has A Low Load, And Still Runs Slow.

Apr 12, 2007

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.

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Server Slow To Load

May 14, 2009

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.

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CPU Load Low, Server Slow, Need More Ram

Apr 24, 2008

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.

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Server Load Is Low But Site Is VERY Slow

Jul 1, 2007

My machine is pretty good. Here are the specs:

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?

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High Server Load And Slow Performance

Mar 11, 2009

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.

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Low Server Load But Websites Loading Slow

Jun 29, 2008

server load is low according to top command / mytop but what I dont understand all websites on the server are loading very slow.

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Dual Server Setup For Vbulletin Result Slow Load

Oct 12, 2007

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.

webserver: Opteron 170, 2GB RAM, 73GB SCSI 15K
database: Quad Xeon 3220, 2GB RAM, 73GB SCSI 15K.

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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

And when i run cat /proc/user_beancounters:

i18.photobucket.com/albums/b106/gnatfish/beancounters2.jpg

This line is particularly scary:
numtcpsock 164 164 166 166 7321

What do i need to do, to get the website running again? It's only one site on the vps a proxy. So i thought a vps would be able to handle one proxy.

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Some Sites Load Slow, Some Sites Load Fine, Server Load Is Fine

Aug 12, 2008

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?

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How A Game Server Runs On My Vps

Sep 6, 2007

I am running a counterstrike source 20 slot 66 tick server on my vps.

My vps specs: 512mb ram

When I have around 4 players on it my cpu load is around 7% when theres no players on it its around 0%.

I take it this is really good? Cause I thought cpu usage would be alot higher.

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Server Very Slow, But Server Load Is Near Zero

May 25, 2009

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.

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My Server Is Very Slow, High CPU, High Apache Load

Oct 31, 2009

My server is very slow, High CPU, High Apache load....

I got a new server and i had setup a script on it.

No server tweaks has been done.

I run a filehosting site so it gets very slow when traffic is high.

Here is some info:

Code:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4135 filedip 19 0 12812 8892 2212 R 18.9 0.4 0:00.74 index.cgi
3140 apache 15 0 22624 9604 2768 S 17.3 0.5 1:54.45 httpd
3556 apache 15 0 22792 9592 2768 S 17.3 0.5 0:43.53 httpd
3739 apache 15 0 22672 9556 2744 S 17.3 0.5 1:09.67 httpd
3884 apache 15 0 22664 9560 2744 S 17.3 0.5 0:23.98 httpd
3474 apache 15 0 22672 9572 2756 R 16.1 0.5 1:34.09 httpd
3548 apache 15 0 22792 9560 2740 S 16.1 0.5 1:33.67 httpd
3991 apache 15 0 22640 9588 2756 S 15.1 0.5 0:22.44 httpd
3475 apache 15 0 22672 9580 2756 S 13.2 0.5 1:31.42 httpd
3493 apache 15 0 22664 9592 2768 S 12.9 0.5 1:15.52 httpd
3769 apache 15 0 22664 9580 2756 S 12.9 0.5 0:45.19 httpd
3638 apache 15 0 22664 9576 2756 S 12.3 0.5 0:32.82 httpd
3724 apache 16 0 22664 9580 2756 R 12.3 0.5 0:34.25 httpd
3626 apache 15 0 22672 9580 2756 S 11.7 0.5 0:52.54 httpd
4023 apache 16 0 22792 9560 2740 R 11.3 0.5 0:13.16 httpd
3882 apache 15 0 22664 9576 2756 S 10.1 0.5 0:38.56 httpd
3005 apache 15 0 22672 9588 2768 R 9.1 0.5 2:06.61 httpd

I dont know much about server managment...

how to fix this so server doesnt go slow?

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Some Websites Load Slow + Mysql Timeout

Feb 5, 2007

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

__ Questions ___________________________________________________________
Total 19.61M 59.47/s
Slow 9 0.00/s %Total: 0.00 %DMS: 0.00
DMS 7.17M 21.74/s 36.56

__ Table Locks _________________________________________________________
Waited 7.57k 0.02/s %Total: 0.05
Immediate 16.50M 50.03/s

__ Tables ______________________________________________________________
Open 1.27k of 1800 %Cache: 70.56
Opened 1.82k 0.01/s

__ Connections _________________________________________________________
Max used 47 of 500 %Max: 9.40
Total 2.62M 7.95/s

__ Created Temp ________________________________________________________
Disk table 6.77k 0.02/s
Table 635.25k 1.93/s
File 50.37k 0.15/s

I can't find any problems on the server which may lead to this strange problem.

The server load is normal, around 1 to 1.5. No weird errors in the apache error log or system log.

This strange behaviour started 2 weeks ago, and appears 2 to 3 time a week.

The system is running:
centos 4.3 64-bit
kernel 2.6.16.17 #1 SMP
directadmin 1.29.0
mysql 5.0.15
php 5.2
apache 2

Zend optimizer 3.2.0
Eaccelerator 1.95

One thing i noticed is that every night when the directadmin cron finished, the server acts normal again.

The directadmin cronjobs are:
* * * * * root /usr/local/directadmin/dataskq
2 0-23/6 * * * root echo 'action=vacation&value=all' >> /usr/local/directadmin/data/task.queue;
#5 5 * * 0 root /sbin/quotaoff -a; /sbin/quotacheck -augm; /sbin/quotaon -a;
20 4 1 * * root echo 'action=reset&value=all' >> /usr/local/directadmin/data/task.queue
0 4 * * * root echo 'action=check&value=license' >> /usr/local/directadmin/data/task.queue
10 0 * * * root /usr/local/directadmin/plugins/awstats/hooks/cgi-bin/awstats_updateall.pl now -awstatsprog=/usr/local/directadmin/plugins/awstats/hooks/cgi-bin/awstats.pl && echo 'action=tally&value=all' >> /usr/local/directadmin/data/task.queue

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VBulletin Forum Very Slow Under High Load

Apr 15, 2007

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?

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Plesk 12.x / Linux :: Control Panel Is Very Slow To Load?

Apr 17, 2015

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.

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Plesk 12.x / Linux :: Php-cgi High Cpu Load Website Running Slow

Dec 10, 2014

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.

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May 1, 2014

VPS hosting, stats in my sig below. Have poor performance with a drupal and civicrm(drupal based) website and looking to troubleshoot.

Main issue is pages take too long to load, sometimes over 5 seconds and more! Below is my.cnf and MYSQLtuner results.

So my.cnf

Code:

[mysqld]
set-variable=local-infile=0
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql

[Code] .....

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What Does Twiceler Spider Do And Who Runs It

Jun 14, 2007

Having this issue with a robot Twiceler recently on my server. It is running around 12 queries for pages per minute and those page request are sql intensive.

The issue is that it runs from 3 different IP and are pretty aggressive in making request 2 requests within 2 seconds.

Anyone have any experience with this spider? What does it do and who runs it? Or it is just another script that anyone can download?

I am thinking of banning the IPs and the spider all together if the spidering serve no purpose.

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Where To Go When Shared Hosting Capacity Runs Out

Jan 20, 2008

I have a website currently hosted on a Godaddy shared hosting plan.

Visitors to the site have reported getting "Service Unavailable" messages at times. When I talked to Godaddy about this, they say I am exceeding the limits they put on simultaneous page requests (or something to that effect). For my plan this limit is set at 100.

I upgraded to their highest shared hosting plan, and this limit now goes up to 150 simultaneous requests. This will probably solve the problem for a while, but I think the site will grow enough to have a problem at 150, and I need to figure out what to do when this happens.

The site currently gets about 4800 visitors a day, and uses around 5 gb of bandwidth per day.
The site is: BuildItSolar dot com

Questions:

- Am I likely to find a shared hosting plan that is better on this limit than Godaddy?

- Is the site getting large enough that some form of virtual dedicated server or dedicated server is going to be necessary?

- Godaddy offers virtual dedicated servers, and dedicated servers. I wonder what I would need to go to solve the problem, and provide some capacity margin for growth?

Is the lowest level of virtual dedicated server really going to provide any better performance than the shared hosting plan I have now? Godaddy was not very helpful on answering these questions.

- Any recommendations for virtual dedicated server or dedicated server outfits that are good?

Sorry about so many questions on my first post. Wish I knew more about this whole hosting thing.

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Plesk 12.x / Linux :: Sites Offline While It Runs Perfect After Reboot

Apr 2, 2015

I run a centos 6 plesk 12 server with around 7 domains.All runs perfect untill a 3 hours ago. The server was offline.After reboot plesk starts up without a problem but the sites keep offline. While httpd and mysqld and psa runs perfect.Also cannot find error messages in the messages, error_log or anything. How to proceed debugging?

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Load Testing :: Server Load Testers ( Commercial )?

May 6, 2008

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.

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VPS Incredibly Slow, Huge Numbers Of Slow MySQL Queries For Plesk/Watchdog

Nov 11, 2008

I've got 25 domains on a Virtuozzo/Plesk8.6/CentOS5 VPS. Each domain has one up-to-date install of WordPress, most have very little traffic (average 200mb per month), maybe 2 domains get 5-7gb traffic per month.

I monitor port 80 connections and rarely see more than 10 at a time.
That should in my opinion be no problem at all for a VPS with 768mb guaranteed ram and 2.4ghz cpu. I've got 30gb hard drive spare too.

But.... about 8 or 10 times a day it grinds to a complete halt: server load at 500-1000%, sites timing out, plesk takes 3mins to load, often I can't even connect with SSH, and the plesk web server, apache

INSERT INTO module_watchdog_sys_stat (time, type, value, service_id) VALUES(FROM_UNIXTIME(1226404705), 'MAINMEM_USAGE', 17472, 11);

80 seconds sounds like a huge amount of time for a MySQL insert to me! Does anyone know if this is likely to be the cause of my trouble? Some problem with Plesk and the database? Or could it be something else?

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Apr 9, 2007

this is my server and i host only one site as upload image but it is too slow and usully apache down

how i can optimize this server please
Processor Information

Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Pentium(R) 4 CPU 2.26GHz
Processor #1 speed: 2262.422 MHz
Processor #1 cache size: 512 KB

Memory Information

Memory: 1002104k/1015744k available (2150k kernel code, 12844k reserved, 716k data, 164k init, 98240k highmem)

System Information

Linux 2.6.9-42.0.3.EL #1 Fri Oct 6 05:59:54 CDT 2006 i686 i686 i386 GNU/Linux

Physcial Disks

Current Memory Usage

total used free shared buffers cached
Mem: 1003164 976220 26944 0 102932 471740
-/+ buffers/cache: 401548 601616
Swap: 1052216 171412 880804
Total: 2055380 1147632 907748

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Slow Server ...

Jan 6, 2008

frends now iam haveing dedicated server with pentium-4 and RAM is 2GB,my site online members is more than 100 members,now i feel slow in server,what i have add extra RAM or any chage in server

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Server Is Slow

Jun 19, 2007

Why is my hosting server usually slow and down?
CPU Usage : 100%
Main : >3GB (total physical memory: 3GB)

i dont know Do user access to website that are hosted on my server too crowded make server slow while bandwidth only have 4MB.

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Slow Server

Sep 7, 2007

Server is dead slow. Its 3.0 1GB Ram Plesk Lniux Red Hat E4 machine. The top -c result is as below.

197 total, 6 running, 191 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.0% us, 1.7% sy, 0.3% ni, 0.0% id, 94.0% wa, 0.0% hi, 0.0% si
Mem: 1027556k total, 953880k used, 73676k free, 23604k buffers
Swap: 2040244k total, 102308k used, 1937936k free, 87872k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3167 mysql 15 0 288m 67m 4336 S 0.8 6.8 40:37.97 /usr/libexec/mysqld --defaults-file=/etc/my.cnf --basedir=/usr --
3247 apache 18 0 125m 75m 4344 D 0.7 7.5 0:00.34 /usr/sbin/httpd
3039 root 26 10 13628 5808 2656 S 0.3 0.6 0:00.69 mytop
3250 apache 16 0 121m 71m 4520 R 0.3 7.1 0:00.35 /usr/sbin/httpd
4671 apache 15 0 141m 89m 6512 S 0.2 9.0 0:57.54 /usr/sbin/httpd
1882 popuser 15 0 4176 700 564 S 0.2 0.1 0:00.17 /usr/bin/pop3d Maildir
2111 popuser 15 0 4036 712 564 S 0.2 0.1 0:00.47 /usr/bin/pop3d Maildir
3327 apache 17 0 124m 73m 5556 R 0.2 7.3 0:00.50 /usr/sbin/httpd
1 root 16 0 3580 484 456 S 0.0 0.0 0:02.11 init [3]
2 root 34 19 0 0 0 S 0.0 0.0 0:14.01 [ksoftirqd/0]
3 root 5 -10 0 0 0 S 0.0 0.0 0:00.56 [events/0]
4 root 9 -10 0 0 0 S 0.0 0.0 0:00.00 [khelper]
5 root 15 -10 0 0 0 S 0.0 0.0 0:00.00 [kacpid]
19 root 5 -10 0 0 0 S 0.0 0.0 0:00.00 [kblockd/0]
40 root 10 -10 0 0 0 S 0.0 0.0 0:00.00 [aio/0]
20 root 15 0 0 0 0 S 0.0 0.0 0:00.00 [khubd]
39 root 15 0 0 0 0 S 0.0 0.0 4:09.01 [kswapd0]
186 root 25 0 0 0 0 S 0.0 0.0 0:00.00 [kseriod]
295 root 15 0 0 0 0 D 0.0 0.0 2:29.80 [kjournald]
1373 root 6 -10 2272 376 372 S 0.0 0.0 0:00.02 udevd
1606 root 6 -10 0 0 0 S 0.0 0.0 0:00.00 [kauditd]
1648 root 6 -10 0 0 0 S 0.0 0.0 0:00.00 [kmirrord]
1672 root 15 0 0 0 0 S 0.0 0.0 0:00.00 [kjournald]
1673 root 19 0 0 0 0 S 0.0 0.0 0:00.00 [kjournald]
2443 root 15 0 1608 528 456 D 0.0 0.1 2:14.13 syslogd -m 0
2447 root 16 0 2696 368 316 S 0.0 0.0 0:00.00 klogd -x
2474 rpc 15 0 3304 404 400 S 0.0 0.0 0:00.00 portmap
2493 rpcuser 18 0 2648 528 524 S 0.0 0.1 0:00.00 rpc.statd
2519 root 16 0 4672 188 152 S 0.0 0.0 0:00.10 rpc.idmapd
2590 root 15 0 1952 436 284 S 0.0 0.0 0:00.07 /usr/sbin/smartd
2599 root 19 0 1940 356 352 S 0.0 0.0 0:00.00 /usr/sbin/acpid
2659 named 16 0 43736 7664 1884 S 0.0 0.7 12:22.15 /usr/sbin/named -u named -c /etc/named.conf -u named -t /var/name
2702 root 16 0 4956 912 792 S 0.0 0.1 0:03.86 /usr/sbin/sshd
2715 root 16 0 3104 712 620 S 0.0 0.1 1:02.87 xinetd -stayalive -pidfile /var/run/xinetd.pid
2869 postgres 16 0 19772 1440 1332 S 0.0 0.1 0:00.08 /usr/bin/postmaster -p 5432 -D /var/lib/pgsql/data
2873 postgres 18 0 10572 216 176 S 0.0 0.0 0:00.00 postgres: stats buffer

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Server Is So Slow

Mar 5, 2007

My server is so slow I donít know where the problem is

Server Load from 2 to 8 Monthly bandwidth 1300 GB Unique visitor 4000 - 5000 daily Page loads 13.000 Ė 20.000

This is current server features
Intel Pentium 4 2.8Ghz 1024MB RAM Bandwidth: 1500GB

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Server Network Very Slow

Jun 22, 2009

problem with my server running CentOS 5.3.

I noticed that there are huge pings to my server from time to time, example:

------------------
64 bytes from HOSTNAME (server-IP): icmp_seq=0 ttl=60 time=2.93 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=1 ttl=60 time=2.70 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=2 ttl=60 time=1901 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=3 ttl=60 time=899 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=5 ttl=60 time=2.69 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=6 ttl=60 time=2.62 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=4 ttl=60 time=2132 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=8 ttl=60 time=2.57 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=7 ttl=60 time=1190 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=10 ttl=60 time=2.65 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=9 ttl=60 time=1048 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=12 ttl=60 time=2.74 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=11 ttl=60 time=1205 ms
------------------

First I thought that it is network related, but most strange for me was that I did not have any packets lose.

Then I tried to ping from my server to other hosts - situation was the same - some ping were good and some were huge (700ms, 800ms, even 2000ms)

I checked:
cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max
and it was 65536

Then I checked:
cat /proc/sys/net/ipv4/netfilter/ip_conntrack_count
and it was ~1600 so normal.

dmesg was showing such errors:

conntrack_ftp: partial 227 3331059707+13

Then I checked ifconfig, here is the output:

------------------
eth0 Link encap:Ethernet HWaddr 00:24:21:57:2B:6F
inet addr:MAIN=IP Bcast:BCAST=IP Mask:255.255.255.192
inet6 addr: fe80::224:21ff:fe57:2b6f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:170557113 errors:0 dropped:2421127049 overruns:0 frame:0
TX packets:182047660 errors:0 dropped:46 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2756835074 (2.5 GiB) TX bytes:79640621 (75.9 MiB)
Interrupt:82 Base address:0xe000
------------------

Strange for me was:

RX packets [...] dropped:2421127049
TX packets [...] dropped:46

I did not have such dropped information on all my other servers. Dropped counter for RX was constatnly increasing.

So I decided to restart all services on the server. After restarting network and ipaliases - problem disappeared. RX dropped counter is still rising, but I do not have any slowdowns on the server and pings are normal.

My question is - does anyone could have any idea what can casue my problem and how can I prevent this in the future?

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Nov 6, 2009

i have a strange problem at my server ,

i hosted 1 wesite ( forum script with no plugins )

when my traffic consuption reache to 25mbs the server running very slow for hours although the load avarage is very normal 1-2 Iowait 3% ram consumption 8-10Gb

my uplink port 1Gb and of course my DC said the connection is normal with no limitation

the server specs are good
Quad procs 7200 ,16Gb ram ,15K SCSI speed

connections reache to 2000-2500 per seconds

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Dedicated Server A Bit Slow

Mar 13, 2008

My dedicated server starts to be a bit too slow.

But on Munin it seems just fine.

what can i do to solve this problem ?

This is the link to munin :
[url]

and this is what i have :

Quote:

Tier 1 Bandwidth: 2000GB
Operating System **Select One**: Ubuntu Server Edition (6.0x)
Memory: 6144MB RAM
Uplink Port Speed - Disc: 100mbps
Processor: Dual Processor Dual Core Xeon 5160 3.0GHz Woodcrest 2 x 4MB cache

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