What Increase In Performance To Expect
May 2, 2009
I'm considering upgrading our company's server. We run an ecommerce site php/mysql based, we have about 12,000 visitors per day and we use up about 1500 gig per month. Simple ecommerce site, nothing fancy. We had some complains from people that our site is "slow" (despite it running smoothly for us, but these people claimed that only our site was "slow" and that they use fast connections) so that's why now I'm thinking maybe its time to upgrade.
We are using softlayer, for an extra $50 per month they recommended that we upgrade from our Opteron 1216 to "Xeon 3220 - 2.40GHz (Kentsfield) - 2 x 4MB cache"
Are we going to see a serious increase in performance? Will the increase be enough that most visitors will actually be able to feel it?
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Nov 4, 2009
althogh the cpu is very powerful now,
i feel the sata speed and io is the bottleneck of server,
if we use four SATAII HDs to do raid10,
about the hd performance,
will take how many more than original one sata hd?
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Jun 22, 2009
it took me one year to develop the disk cache tool which can dramatically boost your host and save your harddisk. it is like supercache,but more cheap and better speed.
check picture to see what it can do.
i will offer free download to test the tool by first 10 people. if u host huge traffic website, do not hesitate to try it. i already test it for half a year. it is time to publish it. pm me or post here to get free download.
i open to any opinion about the tool.
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Jan 27, 2007
From the ModSecurity manual:
Quote:
By default ModSecurity relies on the regular expression library built into Apache for pattern matching.
This works well with Apache 2.x but not so much with Apache 1.x. The Apache 1.x regular expression
engine is several times slower. Since 1.9.2 it is possible to compile ModSecurity for Apache 1.x against
an external regular expression library (PCRE, [url] the same library used in Apache 2.x)
and achieve significant performance increase. This is achieved with the USE_PCRE compile-time flag.
If you have PCRE already installed on your system it may be sufficient to compile ModSecurity like this:
Code:
# <apache1-home>/bin/apxs -DUSE_PCRE -cia mod_security.c
Ok, so I tried and got this error:
Code:
[root@servidor1 customapache]# apxs -DUSE_PCRE -cia mod_security.c
gcc -DLINUX=22 -DHAVE_SET_DUMPABLE -I/usr/include/gdbm -DMOD_SSL=208128 -DUSE_HSREGEX -DEAPI -fpic -DSHARED_MODULE -I/usr/include/apache -DUS
E_PCRE -c mod_security.c
mod_security.c:37:18: pcre.h: No such file or directory
mod_security.c: In function `my_pregcomp':
mod_security.c:929: error: `PCRE_CASELESS' undeclared (first use in this function)
mod_security.c:929: error: (Each undeclared identifier is reported only once
mod_security.c:929: error: for each function it appears in.)
mod_security.c:929: warning: assignment makes pointer from integer without a cast
mod_security.c: In function `my_regexec':
mod_security.c:940: error: `PCRE_ERROR_NOMATCH' undeclared (first use in this function)
apxs:Break: Command failed with rc=1
I double checked if I have PCRE installed:
Code:
[root@servidor1 customapache]# yum search pcre
pcre.i386 4.5-3.2.RHEL4 installed
Matched from:
pcre
Perl-compatible regular expression library.
PCRE has its own native API, but a set of "wrapper" functions that are based on
the POSIX API are also supplied in the library libpcreposix. Note that this
just provides a POSIX calling interface to PCRE: the regular expressions
themselves still follow Perl syntax and semantics. The header file
for the POSIX-style functions is called pcreposix.h.
[url]
And I even located the /lib/libpcre.so.0.0.1 and copied it to /usr/lib/apache/libpcre.so, with no sucess. Got the same error.
Has anyone sucessfully compiled mod_security with PCRE and can help me?
More info on this slow down issue here: [url]
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May 28, 2009
Here is my GigeNet review. I am about 8 months with them and I thought I own them one review.
I applied for managed dedicated server and in few hours I got message that my server is ready. It was windows 2008 data center box with Hyper-V which I use for VPS hosting. Soon after it was setup I had problems with routing my VPS machines to outside world. I got response in 3 minutes with solution . After that I requested support many times, on different issues, like setting up my own BW monitoring for VPS, windows licensing, firewalls, CPanel (I have some Linux VPS too), and each time I got prompt response from their very kind support. I really have feeling they have 3 people working just for me.
Later on I bought another server, requested all kinds of stuff from them like transferring IP blocks from one server to another and changing CPU on live server (with 15 minutes of downtime, I don't know how they did that ), and they were prompt and professional every single time.
In the past I had few horror stories, but finally I found dedicated server company which is almost too good to be true.
I really recommend them to everyone, especially if you can get one of theirs special offers, when they basically give you all above mentioned for the price of unmanaged server.
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Oct 25, 2009
What could I expect in the web hosting world for £1/m or £10/y?
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Jul 20, 2009
I currently use a half cabinet and think I'm paying way too much. I pay $1,000/month for half rack (10 meg bandwidth) 20 amps power, etc. Service and connectivity has been great (Ashburn, VA data center) but I think it's just over priced.
What should I pay for half cab, 20 amps, 5-10 MEG bandwidth, 20 amps?
On that note, what if I was to go for a full cabinet solution, same power and bandwidth, what is ultimately the expected price for a reputable colo provider?
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May 30, 2008
How much bandwidth/month can we expect with them ? I read several stories... someone wrote he was able to push only about 3TB and others can push 5TB - 9TB
So what's your experience?
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Apr 27, 2008
I have several unmanaged Xen-based VPSes with a company that I've for the most part been very pleased with for the past couple years. I recently got an email from them saying that the physical server my VPS was on needed some components replaced and that the VPS would be "briefly unavailable" on a Saturday morning to do so.
Now, my definition of "briefly unavailable" is a few minutes, maybe 5 minutes max. I assumed that they would migrate the VPSes to a backup physical server while they fixed the other one, then migrate them back afterwards. In fact, I thought that Xen was capable of doing this in real-time with no downtime.
But the VPS was down for over an hour, so they obviously just shut down the box with the VPSes running. Because of the nature of my website, that particular Saturday was very inconvenient for me to have extended downtime. I was rather upset and contacted them to let them know, but they seemed rather indifferent and suggested that I look into upgrading to their redundant/failover services.
So my question is, am I being unreasonable to expect that *planned* downtime be limited to a couple minutes, or is it normal for companies to just take the servers down while they perform the maintenance? I thought that real-time migration to a different server was one of the benefits of virtual servers and I was surprised that they didn't take advantage of it.
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Dec 10, 2007
I recently changed server http://psrecipe.com/ to a new one, the dns has seemingly resolved for everyone else expect me.
It's been a week since changing the nameservers and host but it's leading me to the old server still.
Quote:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, webmaster@psrecipe.madebyidea.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.
I can't understand why this is doing it.
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Oct 1, 2007
The following expect script works perfectly from the command line, but fails under cron:
Code:
#!/usr/bin/expect
spawn sftp -b /root/sftp.txt root@***.***.***.***
expect "password:"
send "password
"
interact
The output is:
Code:
spawn sftp -b /root/sftp.txt root@***.***.***.***
root@***.***.***.***'s password:
I can't work out if the password just isn't getting sent, or if the interact command is causing the script to fail. I also can't fathom why this would only cause a problem under cron.
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Jul 13, 2007
I am using dreamhost host 3 of my web sites and 1 blog. Dreamhost is great, offers alot space and bandwidth.
but I think they are oversellling their space, sometimes it gets really slow. (overselling ? ok, I dont really know, but sometimes its really slow, and most my asian readers said need to refresh to load the page. I am wondering if theres a way to check if they are overselling or not.)
I am thinking about buying vps, even tho, I still got 5 month left with dreamhost.
I found 2 vps companies are highly recommanded on this forum, JaguarPC and LiquidWeb.
theres already a post compared both companies in terms of price and service. I say I will pick JagarPc, cuz, its basic plan just 20 USD, and htey got promotion now, its even cheaper. and basic Liquidweb vps plan is 60 bucks.
I am wondering why Jagarpc is so cheap , are they overselling? how can we check if they are overselling.
I found a few posts saying how good jaguarPc is. and they are not overselling, but those members just signed up this month, and only have 1-3 posts. I cannot really trust those new members.
Can someone share their experience with JaguarPC? compare JaguarPc performance and liquidweb performance. antoher question is switch from dreamhost to JaguarPC basic vPS plan, will performance gets better?
last question: VPS account allows 3 IP, 3ip = 3 domains? if not, how many domains can I have?
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Jul 7, 2009
we have problem with increase HDD for VPS in vmware
when i increase HDD show this error:
"Reconfigure Virtual Machine" failed to complete OK
If these problems persist, please contact your system administrator.
DetailsOperation failed because file already exists.
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Jul 10, 2007
I want to edit the nf_conntrack value 'cause I'm being DDoSed and my /var/log/messages says nf_conntrack is full...
I know how ip_conntrack can be modified.. but I can't figure out how to edit nf_conntrack (installed FC 7...)
if there are any additional settings i must edit on apf to work with nf_conntrack please warn me about it.
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May 23, 2007
Is there a way to increase FTP timeouts to 60 minutes within WHM? Otherwise, how would one do it via SSH?
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Jul 18, 2008
Just received this from cPanel... it is a substantial price increase (33%). Should be fun explaining to customers why they will start to be billed more...
Earlier this year we released cPanel VPS Optimized as part of our ongoing effort to provide quality web hosting automation software. You can learn more about this optimization of our software for VPS environments on our website at:
http://www.cpanel.net/products/cpvps/
In order to provide optimized software and ensure continuous updates for your virtual server customers, effective September 1, 2008 the monthly pricing for all internal virtual server licenses will be increased by $2 per license.
This price increase is for virtual server licensing only and will not affect your dedicated server license pricing.
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Jul 13, 2009
i have a dedicated server windows 2008
and i created users on the group (remote desktop users)
but only 2 users can join online
how can i increase this?
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Jul 28, 2009
Anyone else see an influx of fraudulent CC orders with all valid information? Even the IP of these orders matches or comes close to matching the address. What's in common is that email correspondence reveals Asia-based IP addresses and the phone number never checks out.
Could this be due to the recent Network Solutions breach? I've never seen so many fraudulent orders with nearly everything checking out.
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Oct 21, 2008
I use a VPS with CentOS and LX-Admin. My VPS run only 1 forum phpbb3.0.2 and nothing else.
3 days ago, disk used was 2.6GB, yesterday disk used was 2.7BG and to day disk used is 2.8GB ...
I wonder why disk used of my VPS increase everyday? It's may be because of cache and log? How to clean unnecessary cache and log?
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Nov 3, 2008
how can you increase the uptime of your server?
can i ask how could you increase the uptime of your server?
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Jan 19, 2007
We've been considering getting a cabinet at Level3 in Tampa and the last pricing we got was November 2006. Yesterday I spoke with the rep I'd been dealing with to place the order, and was told that Level3 raised their prices substantially as of January 1st.
The quote we got 2 months ago is now a full 30% higher.
Can anyone confirm whether Level3 really did take a fat increase, or am I being hustled?
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Nov 30, 2007
well now my server load is back to normal i.e 1 - 2
but i want to increase the maxclients limit in my httpd.conf..
when i did 312 and restarted it, it says the max is 256.. so how do i increase the limit
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May 25, 2007
I have an increase in bandwidth for one of my site.
Usually, it average around 6 or 7 gigs per month. This month im almost at 10 gig. In awstats, it report that a spcific ip have used 3.49 GB alone and as 128668 pages view and 128668 hits. Last access was 18th of may.
I have done a IP whois, and it appears that this IP belongs to [url], which is an ISP.
Now, im thinking of all types of things. Is my account serving files for someone? hack?
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Jun 14, 2009
I'm sending out a mail campaign and noticed that there is a default limit of 300 set somewhere on my server. how do i chance this...
has exceeded the max emails per hour (300) allowed. Message discarded.
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Apr 23, 2008
Is it possible to add another hard-drive and attach it to increase the size of the /home directory?
Beginning to run out of space.
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Dec 15, 2008
I have CentOs 5 With LxAdmin
My Current Import Max File in PhpMyAdmin is 8192 KiB
I have Changed Values in php.ini and my.cnf But Still No Luck At ALL, Its Not Working
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Mar 31, 2008
I can not find anything weird on the server.
Everything seems normal.
Why the traffic go high suddenly, then it drop to normal after a while.
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Jun 13, 2008
How can I increase/decrease a mail box quota from SSH?
we use cPanel.
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Feb 1, 2007
One of my sites gets around 10k+ visitors a day which has caused my httpd to be really slow.
My MaxClients is set to 250.
What should I do to get it back to normal?
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Oct 8, 2007
I mounted sda2 as var and its size is 2GB. I wanna to increase its size to 4GB,which command should i run without umount and mount it again?
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Oct 11, 2007
error message: [Warning] Could not increase number of max_open_files to more than 65535 (request: 71410)
in my.cnf, I have this already
open_files_limit=90000
and
#cat /proc/sys/fs/file-max
370603
Is there any idea to fix this error?
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