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Thread: dedicatednow.com VPS problem
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03-09-2004, 01:34 AM #1WHT Addict
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dedicatednow.com VPS problem
I bought a VPS from a reseller of dedicatednow.com.
It has generally been acceptable until a little over a week ago when I started to get a "cannot allocate memory" problem. This problem causes havoc with cPanel and the server as a whole. It continues until the VPS session is restarted.
My reseller (who doesn't yet know that I found out they are just a reseller) has given a flat "we don't know" on what is causing this issue. According to them they are working through the issue with the makers of the Virtuozzo VPS software.
Do I have any ability to work with dedicatednow.com support myself? I have full root access, but the account isn't actually in my name because the reseller ordered it.
I suspect I don't, so are there any other alternatives?
Thanks for any suggesitions.
Boris
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03-09-2004, 04:30 AM #2Web Hosting Master
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did you run both out of virtual memory and swap space? start with that.
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03-09-2004, 05:42 AM #3WHT Addict
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Thanks Rusko,
The root WHM reports memory use at between 40% to 55%, and <1% swap used.
Keep in mind this is a mainframe VPS so I don't know if that would effect reported usage stats under WHM.
A Google search only reveals one other person with a similiar memory allocation problem under Virtuozzo:
http://lists.netfilter.org/pipermail...er/047707.html
Unfortunately no reply indicating if it ever got solved.
Ahh well.
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03-09-2004, 06:04 AM #4Web Hosting Guru
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If a reseller gives you a flat "we don't know" without atleast pointing you in the right direction ( or atleast right direction in his opinion ), I would suggest you to start looking for a better reseller or buy an account direct from DN.
Maker of World's BEST Browser & Web site development software.
Shared / Reseller / Dedicated *Managed* Web hosting on Linux / Windows with 99.5% Uptime Guarantee with SLA & 90 days moneyback guarantee.
Contact -> AIM: str1997 | ICQ: 303026849
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03-09-2004, 06:19 AM #5Mr Unmetered
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Originally posted by Str
If a reseller gives you a flat "we don't know" without atleast pointing you in the right direction ( or atleast right direction in his opinion ), I would suggest you to start looking for a better reseller or buy an account direct from DN.█ SERVSTRA | THE ENTERPRISE CLOUD SERVER & DEDICATED SERVER SPECIALISTS
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03-09-2004, 06:52 AM #6WHT Addict
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Thanks everyone,
I certainly agree about saying goodbye to the reseller. They are long gone. I'm just waiting fo DNS to resolve on my new server (with a much more expensive and reliable host) so I can transfer clients away.
I'm doing everything I can to avoid flaming the reseller. I'm worried that they would not even bother to reset the VPS to get me back online temporarily if I did so.
You can catch more flies with honey than with vinegar as the saying goes.
If the new server has resolved by tomorrow I'll probably just transfer the clients and cancel the VPS, if not I'll contact dedicatednow.com and see what they can do for me.
Thanks again.
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03-09-2004, 07:02 AM #7Web Hosting Master
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SSH to server and check UBC parameters for vps
# cat /proc/user_beancounters
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03-09-2004, 07:18 AM #8WHT Addict
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Jolly,
Version: 2.5
uid resource held maxheld barrier limit failcnt
115: kmemsize 3463902 5686749 8738133 9611946 0
lockedpages 0 0 322 322 0
privvmpages 29866 66408 524288 524288 0
shmpages 731 747 16969 16969 0
dummy 0 0 0 0 0
numproc 56 94 250 250 0
physpages 17854 55477 0 2147483647 0
vmguarpages 0 0 131072 2147483647 0
oomguarpages 19434 55477 131072 2147483647 0
numtcpsock 30 69 200 200 0
numflock 0 7 107 117 0
numpty 1 1 19 19 0
numsiginfo 0 13 274 274 0
tcpsndbuf 4448 409216 679936 1235821 0
tcprcvbuf 0 170880 679936 1235821 0
othersockbuf 21808 74720 221476 594505 0
dgramrcvbuf 0 25632 79579 79579 0
numothersock 15 59 110 110 0
dcachesize 767526 796237 795000 818029 53247
numfile 1477 1910 2500 2500 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 79 79 155 155 0
Or the prettier formatted version:
http://bentleighbicycles.com.au/beancounters.gif
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03-09-2004, 08:21 AM #9Web Hosting Master
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Your problem is with the dcachesize. You can see the far right column, failcnt, the number of times that resource was denied to an application.
Based on the "numfile" setting, their dcachesize should have a barrier of 960000 and a limit of 1056000. Ask them to change that, no restart required, and your problem should go away.<!-- boo! -->
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03-09-2004, 08:40 AM #10WHT Addict
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Gee thanks ScottD, Jolly, and everyone,
Your help with diagnosis has really been great. I really didn't mean for this to be a "disgnose this" thread, but I'm happy that it sorta has.
Is there any chance you can tell me how to change the dcachesize myself or does it have to be done through a Virtuozzo control or something?
I dived into Google but only found 71 results, and none with a clear explination that I could see.
I'd rather not point my host to this thread and therefore admit that I'm leaving them.
Thanks once again.
Boris
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03-09-2004, 08:52 AM #11Web Hosting Master
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Unfortunately this is not a user controlable parameter and must be changed by the host. The formulas for calculating these parameters are in the Virtuozzo documentation which I believe is only available to licensees of the software.
I'm kind of surprised that the Virtual Server was configured that way because the VZMC software should have complained about that setting. It's a non-critical issue but it should have at least provided a warning. Turns out it's not so non-critical in your case.
Good luck!<!-- boo! -->
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03-09-2004, 09:02 AM #12WHT Addict
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Thanks ScottD,
I think your sig "Extraordinary Service" pretty much says it all.
I've informed the host of the change that needs to be made. I can only hope they will be as even half as responsive as the posters here.
Thanks once again.
Boris
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03-09-2004, 07:24 PM #13Junior Guru
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is user_beancounters only used in vps or dedicated server too?
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03-09-2004, 11:40 PM #14WHT Addict
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I just wanted to confirm that the host did implement the settings change as per ScottD's suggestion.
The server has shown complete stability and no signs of the previously reoccurring problem after 12 hours. Considering it was coming back almost every hour at one point, I'm satisfied it has been solved.
I'm looking forward to 8 hours sleep tonight
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03-09-2004, 11:48 PM #15Web Hosting Master
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Hey, cool! Nice being persistent and having them fix it up. If you get a chance, post the latest /proc/user_beancounters as well so we can see how it's fairing in comparison to the previous.
And sleep well! Hopefully that is the complete solution and not just a bandaid.
Wako, /proc/user_beancounters is unique to Virtuozzo.<!-- boo! -->
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03-10-2004, 12:05 AM #16WHT Addict
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ScottD,
Sure, it's the least I could do.
Formatted:
http://bentleighbicycles.com.au/beancounters-new.gif
Unformatted:
Version: 2.5
uid resource held maxheld barrier limit failcnt
115: kmemsize 5121641 8276751 8738133 9611946 0
lockedpages 0 4 322 322 0
privvmpages 41663 107791 524288 524288 0
shmpages 731 747 16969 16969 0
dummy 0 0 0 0 0
numproc 78 211 250 250 0
physpages 28492 44622 0 2147483647 0
vmguarpages 0 0 131072 2147483647 0
oomguarpages 28492 44622 131072 2147483647 0
numtcpsock 42 200 200 200 710
numflock 3 8 107 117 0
numpty 1 1 19 19 0
numsiginfo 0 26 274 274 0
tcpsndbuf 20016 642736 679936 1235821 0
tcprcvbuf 4272 290496 679936 1235821 0
othersockbuf 21808 70736 221476 594505 0
dgramrcvbuf 0 76896 79579 79579 10
numothersock 21 84 110 110 0
dcachesize 823252 930134 960000 1056000 0
numfile 1902 2239 2500 2500 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 79 79 155 155 0
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03-10-2004, 12:10 AM #17Junior Guru
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No wonder I dont see it in my vps
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03-10-2004, 12:32 AM #18Web Hosting Master
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Interesting, you definitely would have crashed by now with the previous settings. You can see how close to the barrier you were with "numfile" and "dcachesize" (they are related).
Just a heads up, but you've exhausted numtcpsock 710 times and dgramrcvbuf 10 times so far. May want to keep your eyes on those over the next few days and see if it causes any other breakage or perhaps severe latency issues under load.<!-- boo! -->
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03-10-2004, 12:50 AM #19WHT Addict
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Will do Scott. I'll post another update to this thread if something breaks. Even the 14 hours of consistancy is a nice break for the moment, but obviously a permenant solution is the goal.
Boris
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03-10-2004, 02:22 AM #20Web Hosting Master
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Thanks for the education on beancounters.
I was with another webhost that used Virtuozzo and was having memory problems, never did check out beancounters. I ended up moving to a UML with VPScolo, and have had non of my previous memory problems.
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03-10-2004, 03:38 AM #21Junior Guru Wannabe
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Originally posted by rasputinj
Thanks for the education on beancounters.
I was with another webhost that used Virtuozzo and was having memory problems, never did check out beancounters. I ended up moving to a UML with VPScolo, and have had non of my previous memory problems.
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03-10-2004, 05:10 AM #22Web Hosting Master
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Originally posted by JCJiffy
I started out with Dinix also, and had some memory problems with my VPS also. I then went to JVDS/VPScolo, and didn't have any issues. I am now back with Dinix, after hearing that they fixed the memory problems and upped their plans. The problems do indeed seem to be fixed. Running smoothly and quickly now. I notice that Virtuozzo is faster than UML when compiling programs or upgrading cpanel/WHM or serving PHP/mysql sites.