I have an VPS at cheapvps.co.uk since November 2007. It has worked like a charm until a week ago. Since the massive crack from last week and the subsequent shutdown & boot, the clock on my VPS is going crazy.
Clock is really accelerated, a minute in the real world equals to more than 2 minutes within the VPS. I'm having lots of problems with dates in the future, and cheapvps support team is working to get this solved with no success.
There is serious clock skew all across the 4 CTs I have put in an OpenVZ HN which runs Debian GNU/Linux, the kernel Linux is v2.6.26, waldi tree. The HN shows correct time, the CMOS RTC is bang correct.
View 7 Replies View Related[openvz ]How to make for kernel of openvz to recognize 4GB of ram?
How to make for kernel of openvz to recognize 4GB of ram?
# uname -a
Linux xxxxxxxxxxx 2.6.18-92.1.13.el5.028stab059.3 #1 SMP Wed Oct 15 17:48:55 MSD 2008 i686 i686 i386 GNU/Linux
I select a vps of Smokyhosts last friday, but I found the clock of it an hour off the correct time,
eg. I set the timezone to UTC, the correct NTP time is 3:00, but the clock of vps is display 2:00, It's an hour before the correct time.
I think this is an error when they first set the clock of host node, I send several tickets to Smokeyhosts support, but they told me I can set to another timezone not in my country, I think this is not reasonable.
and they told me they do not allow any time change requests for the hardware node even if it's error.
Since the clock of VPS is an hour error, even if I can set another timezone not my country. but if I have a forum on this VPS, and user can set their own timezone settings, they would be puzzled to find what they seclectd timezone is always an hour off,
I must be explain this to them? I think this is not acceptable.
I understand the NTP would be impossible to all VPS, but they should ensure the host node's clock is correct relatively, now it's an hour off, I think they can correct this easily if they would like to do.
another small question is when I get the vps, Mysql was installed, but the user "mysql" is not exist in system, So mysql service can't start, I add this myself, and it's ok.
Now all other things looks well except the clock.
their support always response quickly, i'm very satisfied with them.
One of our server's system clock seems to gradually creep away from the correct time. It has been causing us a lot of issues. After one day it becomes more than one hour off. After each minute it becomes a few seconds off.
Any ideas what could be causing this? It's uptime is ~2 months so it doesn't happen when it goes offline, it happens while it is running.
Right now we have a cronjob running ntpdate every few minutes as even with the ntpd service running it would end up off by several minutes when we would check. I have a feeling this isn't a very reliable fix though.
Let me try this question in here as I think there are many companies in here who have remote employees.
Can anyone recommend an online punch clock system to keep track of employee time in's and out's? We would need something that is easy to do payroll and it has to be online so remote users can easily access it.
Is this behavior normal when running a utility such as bonnie++?
I'm running bonnie++ to check for the performance of my drive. When it gets to the part of Writing with putc()... the syslog starts to pop the message in the screen saying:
Message from syslogd@machine at Wed Jun 20 18:06:41 2007 ...
machine kernel: CPU0: Temperature/speed normal
I'm using the following OS:
OS CentOS 5
This is the uname information:
Linux machine.domain.com 2.6.18-8.el5 #1 SMP Thu Mar 15 19:46:53 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
This is the output of bonnie++
[root@machine ~]# bonnie++ -x 3 -u 0 -n1
Using uid:0, gid:0.
name,file_size,putc,putc_cpu,put_block,put_block_cpu,rewrite,rewrite_cpu,getc,getc_cpu,get_block,get_block_cpu,seeks,seeks_cpu,num_files,seq_create,se q_create_cpu,seq_stat,seq_stat_cpu,seq_del,seq_del_cpu,ran_create,ran_create_cpu,ran_stat,ran_stat_cpu,ran_del,ran_del_cpu
Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
bigblue.diversityjobs.com,8G,63756,90,96753,25,43654,9,66384,94,104946,10,292.7,0,1,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++
Writing with putc()...
Message from syslogd@bigblue at Wed Jun 20 18:06:41 2007 ...
bigblue kernel: CPU0: Temperature/speed normal
done
Message from syslogd@machine at Wed Jun 20 18:06:43 2007 ...
bigblue kernel: CPU1: Temperature above threshold, cpu clock throttled
I am running windows 2003, and I patched it with the timezone windows update, everything was fine, but when I looked today, the clock is one hour slow.
But when I run my php scripts, it shows the time being correct. I thought php grabbed the time from the system? Perhaps this is just a bug with the clock, and the internal system time is correct? It is the only thing I can think of.
which type of CPU would be better for a web server that will run Windows, PHP, ColdFusion, mail, DNS, and IIS. Would a dual core CPU with a higher clock speed do better than a quad core CPU with lower clock speed? For instance, would a dual core 3 Ghz processor do better than a quad core at 2.4Ghz?
View 6 Replies View RelatedI'm trying to upgrade from php 5.2.0 to 5.2.2 but for some reason I receive the following errors:
/scripts/easyapache
Quote:
make [@php-5.2.2]...(-j 2 clean)....Done
make [@php-5.2.2]...(-j 2).................................
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ...
matrix kernel: CPU0: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ...
matrix kernel: CPU1: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ...
matrix kernel: CPU1: Running in modulated clock mode
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ...
matrix kernel: CPU0: Running in modulated clock mode
..............
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ...
matrix kernel: CPU0: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ...
matrix kernel: CPU1: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ...
matrix kernel: CPU1: Running in modulated clock mode
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ...
Running cPanel/WHM, Centos.
I've never had the above before,
I have worked with VMWare quite a bit, and have found that no matter what tweaking you do a clock skew of up to a minute (relative to the host clock, itself kept accurate enough via NTP) is unavoidable at times, at least for a Linux 2.6.x based guest.
Do any of the common technologies allow guests to be kept more closely in sync with the host clock and so be more accurate (assuming the host's clock isn't wide of the mark, of course)? Do some of the technologies work OK with using NTPd to regulate the guest clock (under VMWare this is bad idea as it "conflicts" with VMWares own clock synchronisation method potentially making things worse than they otherwise would be).
The reason for the question is that I'm playing with some code that will run on a few different locations and while I can use an external source to fake a clock to the accuracy I want (+/- a second or two) most of the time, I wouldn't have to if I could rely on the VM's wall-clock being that accurate. If the project goes anywhere (my toy projects usually don't!) it would use real machines, but at this stage I'd rather avoid that expense/hassle.
Can not change in 24 hour Clock mode Plesk 12?The scheduled backups start false, because in Plesk 12 running 12 hours mode.The language in Plesk is German.
View 2 Replies View Relatedjust out of interest, does anyone know a ssh command(s) to bring up your servers hardware stats? Cpu type and clock speed, memory, disks etc.
I've looked everywhere for a shell command to show cpu type with no luck.
Can anybody advise, or provide somewhere which advises on the pros/cons of OpenVZ and Xen virtualisation platforms?
View 14 Replies View RelatedWell which one?
Also if possible say why you prefer either OpenVZ or Xen.
I am being told that when a VPS in openvz hits the maximum ram assigned to it that openvz disables that vps.
Isn't the ram limit a hard limit that simply restricts the available ram to that container to XX ram?
Is this normal?
We are looking for a VPS to house a scala framework running on a JVM, from what I can gleen Xen would be the best route for us or is it possible that openVZ with enough dedicated ram would suffice, does anyone have a view on this?
View 6 Replies View RelatedHow I can see how much guaranteed memory I have ? And how I can see how much guaranteed memory I have used ?
Additional how I can see how much bustable memory I have used or how much total memory my VPS is using.
Just how it actually works? I have a pretty good knowledge about Xen and Linux KVM (somewhat about VMware as well). Prior to joining WHT, I rarely heard about Virtuozzo and OpenVZ.
I'm just interested in RAM usage actually. I also read on some threads that you can oversell storage and net bandwidth as well? That just seems a little weird to me.
I also used a fairly good amount of Solaris Zones as well.
Example, if I have a 8GB box and I leave some, say 512MB, reserved for CT0. 8192-512=7680 (I know the ACTUAL RAM amount will NOT be 8192), that leaves 7680MB use for CTs. So technically in OpenVZ if you dice out dedicated 512MB VEs... you end up with 15 right?
So you are able to sell more than 15 VPSs on a 8GB server box? If also set all burstable RAM to 1GB for all VEs.
In Xen, when you set dedicated RAM it is taken away from dom0, period. That's all there is to it, no oversell (Xen 3.3+ you can use ballooning to overcommit RAM, I know).
Within CT in VZ, user is able to check beancounters to see the guaranteed/burstable RAM. Technically you can't lie to the users.
I researched around... when oversell in VZ and the RAM gets maxed out... VZ will try to slow/stop/kill processes in order to keep the guests happy, to me that's just dangerous. Why needs to kill processes for RAM saturation?
Anyone can shed some lights for me? Or point me to an article(s). It can be technical, I should be able to grasp.
I am trying to create some vps using openvz but after creating the vps with the Centos basic template 304mb i can't ping the ip and i can't view the centos welcome page in my browser (using ip and not domain, so i don't need to change there anything yet) and the most important is that i can't connect to the vps using ssh
I aks for many good users about my problem but i don' found a solution yet.
I ask my DC about ip's and they told me that the ip's are routed in my server.
I follow this instructions:
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 50G 2.8G 44G 6% /
/dev/sda3 198M 21M 168M 11% /boot
/dev/sda5 408G 2.4G 385G 1% /vz
tmpfs 1012M 0 1012M 0% /dev/shm
I follow this:
I disable selinux by editing /etc/sysconfig/selinux and changing the line to selinux=disabled
and then run:
I just login using ssh as root and run the folllowing commands.
Did i have to move to another directory to run them or ?
setenforce 0
wget[url]
Next i open /etc/grub.conf
vi /etc/grub.conf
and change default=1 to default=0
Then i add the ip's at the pool and create a plan and then create a vps without any errors but nothing.
I try with my DC resolvers or the 4.2.2.1 4.2.2.2 but nothing.
I alo add at the settings the gateway with no results at all.
After all i can't ping the ip that the vps got from the pool even ping it and not possible to connect to it using the ssh Sad
When you're creating VPS container, you can ssh with that IP and login with your username and password correct? But, what is the problem when I successfully created a VPS, and when trying ssh into it, I can't. Ok, here we go. I want to create a 2nd vps and will be using it as my DNS server. I enter a set of IPs into HyperVM's IPpool. First IP: x.x.x.178 Last IP: x.x.x.182 Resolv Entries (space Separated) : Gateway (IP): x.x.x.x.177 NetMask: 255.255.255.248
Then I created a vps resource plan. And then I created a VPS and it use the first IP from above. I want to connect to SSH and want to make it as my DNS server but seems the IP are not responding, it wasn't even live. So, what is the problem here? Where I did wrong? Just to let you know, I successfully created 1 VPS before that and it works without any hiccups. Got even whm/cpanel installed as well on it. The thing that I suspected is that my DC pulled the IPs off me and assigned them to other server. Waiting for their reply on this though.
What does OpenVZ / w HyperVM
Can I distribute VPS through?
When i using openvz to create VPS, and RHEL4 needed yum installed.
I don't know how to install yum on it.
i have dedicated server. i want install hypervm on this server my work is sell vps.
of your seems xen is better or openvz for my work?
server is :
Intel 2.13Ghz Quad-Core Xeon X3210 Dell PowerEdge 840, 1066MHz, 2x4 MB L2 Cache
4GB DDR2 RAM
2x250GB HDD
I'm trying to convince someone into a project. He's not sure if OpenVZ is well known.
Do you know of it?
recently I got a VPS from cheapvps.co.uk and so far so good. Im getting used to the VPS enviroment. I tried to follow several guides about how to secure with noexec and nosuid the /tmp and /var/tmp and it did not work.
in http : / / www . webhostingtalk .com/showthread.php?t=474681&highlight=tmp points it must be done from the hosting. Same is said in http : // kb . swsoft . com/article_130_648_en.html.
I asked the hosting to do it and they told me as I got an Unmanaged VPS they cant do it for me.
Do anyone know how can be done ? I dont want to use tmpfs as it uses main memory.
i am looking to get away from hostgators extremely overloaded servers and get a vps. I have been admining linux servers for a while although never as a web server, but think i can handle that aspect. I have done a huge amount of research but dont know which way to go. One of the things thats rough is the control panels, i like cpanel and have only used cpanel but many charge alot for it. I have been considering an xl-256 plan from vpsland.com. they are east coast (i am in NJ, west coast is out) and their xl plan is xen with swap. But its $15 for cpanel and that is too much, i was thinking of trying directadmin for $6. Is directadmin any good? I need spamassasin and that stuff of course. To me its crazy that openvz has no swap and the server will crash if you reach max ram like at vpslink.com. I really liked vpslink.com's phone support but the west coast thing is rough. I have been looking at http://www.ubiquityservers.com/vps/new-york.php these guys but its virtuozzo, but cpanel is cheap only $5 a month. bodhost.com seemed cheap at $8 for cpanel. then i found this which sounds great! especially since its close but i emailed them to ask if its xen or openvz and havent heard back in almost 12 hours which scares me for support. i like phone support but vpslink.com again was on the west coast. their cpanel was cheap though at $8. plus i dont know if i want managed ro not then i remembered this site, and remembered i had gotten alot of help hear before so i figured it be best to hear others experience and favorites, etc.
View 7 Replies View RelatedI am aiming to offer VPS based on OpenVZ. Have some questions, please help to answer
- in OpenVZ, is there any monitor script, that will release an email to say one VPS is down? Or will I need to use external monitoring?
- can I do the backup / restore of full VPS within OpenVZ? Can customers do it themselves?
- how hard to change the VPS configuration? For example, upgrading from 256MB RAM to 512MB RAM, or adding more CPU, space...?
- how about the IP control in OpenVZ? Let's say each VPS will have 2 IPs, so to prevent customers adding more IPs, I will need to setup VLAN, is that correct? How hard is it in OpenVZ?
- how about the ideal hardware for running OpenVZ? Saying SATA, or SCSI disks, how many RAM... for example
All these are free but which is best. What are the pros and cons? Have been using Virtuozzo and I love it but thinking about offering cheaper solutions with GPL software.
View 11 Replies View RelatedWhich one do you prefer more and why?
Virtuozzo is very expensive while OpenVZ is free and it is somehow another Virtuozzo, but made simpler?
On a recent Xen VPS trial, I noticed two kernel versions. "2.6.9-42.0.2.EL.xs148xenU" was being used, but 2.6.18X was installed (source & headers). While trying to set up OpenVPN, I noticed my modules.dep was missing. I could be wrong, but I was under the impression that I needed the Kern source in order to make the module dependencies. At any rate, I can't find the kernel versions in question and was wondering where / if they're provided for Xen users. (By the way, I was running CentOS 5)
View 5 Replies View Related