I noticed that my server load sometimes increases to up to 4-5 and sometimes even up to 15. Even though you don't feel any difference: I don't feel any lag when working via SSH and you don't notice slow page loads from Apache... I checked the "top" command and it seems like about 80-90% of the CPU usage was used by "nice", so not by user processes as I expected. Also my munin graphs show that when the "nice" CPU usage increases, so does my server load.
It's a Pentium D 3.4GHz with 2GB of RAM. Kernel 2.6.9-42.0.10.ELsmp.
I have spri from RFX networks installed to prioiritize certain processes (SSH connections for example to improve the chances of getting in when there's something terribly wrong with the server). From what I understand it changes the nice values of (almost) all processes. Is this causing the high "nice" cpu usage?
I have 4 very low traffic websites hosted with Godaddy on a single hosting account. The thing is that I like their email interface and I totally hate cpanel webmail.
Godaddy webmail is pathetically slow these days and I am thinking of moving hosts. Is there any other webhost with a nice webmail interface such as GoDaddy's?
I'm currently hosting my website on core2duo / 2GB RAM dedicated server. Thing is, programmer did a VERY good job optimizing scripts and this server is way too much than I need. The average server load is usually 0.00 - 0.20. I'm thinking of switching to either a cheaper dedicated server or VPS.
We use 300GB-1TB of bandwidth per month though. 90% of our traffic is from US. Do you know any good VPS solution for this?
It tells me that I only have 50 MB of memory left and it drops down to ~20 MB after Apache has been running for a while. Once it runs out of that 20 MB I will start swapping right? I have also run this command and do not see any process taking up anywhere close to what is being reported:
I recently migrated a load of domains from a pleks 8.? install to a plesk 12 one. As part of the migration a new reseller was created but all the resellers domains got "lost". They were all there and working but not appearing in the interface.
I did some googleing and fixed this problem and can now see all the domains and when I look at the reseller plesk tells me it has 0 own customers, 0 own plans and 0 own subscriptions. However, if I look at the resources tab it tells me that 7 domains out of unlimited are being used.I just wondered where plesk get's that info from and if it is safe to delete that reseller without risking the domains getting deleted too.
I'm running Plesk 12.0.18 on Centos 7, recently I've got emails from backup service stating that it could not complete the backup due to insufficient space available on disk. Normally I have plenty of disk space available so I check the disk using the command
df -h
Filesystem Size Used Avail Use% Mounted on /dev/root 20G 2.3G 17G 13% / /dev/md2 91G 82G 4.4G 95% /var
it seems that /var has been growing up a lot, but if I run the command du -sh /var I get a total size of 5.7G (not 82G as stated before)
is Plesk calculating the wrong size or it's me using the wrong commands?
I migrated from one server running Plesk 10.4.4 Update #59 to a new server running Plesk 11 which I then updated to 12.0.18 Update #32. Since moving to Plesk 12 the "Notify when disk space/traffic usage reaches" emails have been being sent to our customers set up on the server whereas previously they were sent to the server admin email address.
My issue started ince a couple of months seemed to increase with update to Plesk 12.0 (though I can't guarantee it).I am using Centos 6.5, all updated. What happens is that postfix usage starts to increase without any apparent reason (during week-ends for example). Then postfix is not responding anymore.
I got 5 wordpress and 5 statics website on this server and 100 visitors by 24H00 each day.
Question 1 : Why the memory is so low and the swap so high ? Question 2 : Why i don't find high usage process in top command ? Question 3 How can i resolve this problem ?
I have been using Blue Host for years, but recently they kept suspending my account due to performance problem.
I was only running a php forum (phpBB3) and a Wordpress blog. They kept mentioning it is not problem with space/bandwidth, but issues with "Running application causing high load", and the mysql queries from phpBB3 are taking too long.
Now I am planning to add a Ruby on Rails application. I am sure it will cost more CPU usage. What should I do? Will a move to VPS hosting solve my problem?
We are currently looking to move to a new dedicated server provider located in the United Kingdom. The server is solely used to provide an IRC daemon to a large IRC network that receives multiple gigabits of DDoS and PPS. We are currently with another hosting provider who can no longer support us.
Our current specification is DualCore Xeon 2.67Ghz/4MB Cache with 500GB SATA HDD. A good connection and available bandwidth (preferably 3-5,000 GB bandwidth /month) included in the price. We are seeking to move to a new dedicated server host, if you know a company that can accommodate our needs,
How do you prevent people from using different IPs on a machine that has a couple VPS clients on it.
If client A has xxx.xxx.xxx.100-xxx.xxx.xxx.103 and client B has xxx.xxx.xxx.104-xxx.xxx.xxx.105. How do you prevent client B from using client A's IPs? Can't he easily modify the config file for his ethernet device to use an IP that hasn't been assigned to him but is assiged to someone else on the same machine?
i checked the CPU usage on my vpc tru Plesk and Remote control, bouth stating i got high CPU usage around 89% 90% TO 96% up and down, no program is using the resources they are all in 0% in the process tab, but when you check the Performance it stats 95%, i dont understand what is going on,
I have VPS with 1GB ram and run same proxy sites in VPS,but sometime usage Ram is high almost 80%, but if I see in histat I see user online is same with usually..
and when I use command netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n I see 1 or 2 IP is 200connection , what is mean?
is Ddos attack or what? and I try to ban this IP using command iptables -A INPUT -s [this IP adress]
but I see this IP still connect? so what must I do?
When I remote into my Windows VPS, Task Manager shows 80% CPU usage on the Performance tab, however, if I look at the running tasks, there's hardly any CPU usage. Is Task Manager including CPU usage from all other VPS's on the box?
For about a couple of days (no configs were changed) I am experiencing high cpu usage from time to time.
At this moment and what I can see is this:
Sites are using low cpu resources, top process is mysql + 1-2 php defuncts replacing each other, after that - httpd requests Something happens and php are starting to use more cpu thant it should. Cpu top usage shows all php files in all accounts replacing each other (index files, scripts there are like wordpress, forums, etc).
Server crashes... Or I kill all php processes, restart apache and it goes back to normal mode again.
I had the same issue months ago, just cpu usage was even more agressive and much often. After days of checking, I've found that it was Curl and/or Curlwrappers which were cauisng that. After recompiled apache without them (left curlssl only), cpu load was always stable.
I m currently hosted on a shared host and this is the stat for on eof my site:
Hours CPU Time Execution time CPU Usage Average Memory Processes 0-6 20.46 s 98.86 s 0.24% 2.52 MB 105 6-12 246.99 s 1927.26 s 2.86% 2.46 MB 1328 12-18 373.3 s 3660.48 s 4.32% 2.52 MB 1867 18-24 250.57 s 2800.82 s 2.90% 2.52 MB 1259
So it shows my site uses avg 2.52 MB RAM. This is in shared hostinng plan.
Now suppose I am going for a VPS server with 256 MB RAM, does that mean I will get whole 256 MB RAM for my Site usage or the OS and other application will also consume that amount of RAM.
What I understand that when you go for VPS, the allocated processor and RAM capacity to yur plan will be used by the OS, the cpanel or any other scripts and the Database. So basically they together will consume nearly 256 MB RAM.
It seems that a user may get more percentage of memory purchased for real use. I've got a xen VPS which has access to all 8 CPU cores. Guess this is a good thing to be able to burst CPU resources
But this requires lots of kthread running to be able to access all CPU resources, which in turn consumes quite some memory, a valuable, limited resource on a small VPS instance.
The output above is grathered when almost no other services are running except sshd.
While XEN VPS surely consumes more memory than OVZ VPS, I would suggest the Xen VPS can be built in such a way less memory is required to just do the housekeeping.
Of course, that would imply careful provisioning, maybe less "overselling" for the sake of lack of a term. The bottom line is how we can reduce the memory usage, while ensure individual VPS instance can still have fair share of CPU if needed.
Is there anyway in the VPS kernel config which can disable access to certain CPU core, thus reducing the number of kthreads and etc?
For some reason, one of my clients wordpress blog is using 100% cpu on a php process per page load. To clarify, the first time you load the page it is very slow, and uses 100% cpu for the PHP process and then if you reload the page (while it is going slow) it loads very fast. After that is done the normal PHP usage per page load is roughly 1-4% if that.
I'm guessing something in the coding is looping, but I am unsure. What I do know is 100% cpu usage for one page view initially is insane.
Does anyone have any ideas on how to fix/resolve this issue?
