Bug your plugins cause server loads on big sites?
- Thread starter adeel786
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Okay, I will look at it either later tonight or tomorrow - we're currently prepping for release night here. Fridays are notoriously busy for us
Thank you. I will look forward to hear from you. Kindly go through all the Dragon byte mods. I just checked again and they are the ones causing all the issues.
I really do not want to stop using your mods, my members are really not happy without them. Hopefully you will be able to fix this.
Good luck with the launch
Cosmic
Active member
Which mod is it that is causing the issue? Are you saying that all 4, individually, are causing load issues? =/
The following mods are causing issues.
Like/Thanks
postbit tabs
Tagging.
You can turn any of these on and see the load spiking up immediately.
Cosmic
Active member
IF every one of these is causing load issues it points to your server just not being up to handling the number of users you have. If it was one mod there could perhaps be an issue with that mod somewhere that had been missed, but it's highly unlikely that all 3 mods have load issues that none of the several hundred other sites running them have ever noticed.
All mods will cause SOME increase in load, but if your server is already on the brink of it's limits then once it's tipped the load increase would become exponential - things would get backed up and queued.
Getting a second dedicated server wouldn't make much difference if it's not configured in a way that's geared towards a forum setup. Your second server should be a dedicated database server to handle your MySQL connecions and should be using (minimum) a 15k SCSI raid setup, preferably a SSD set up. If the issue is database connections (which 90% of the time with forums it is) then just putting up another server is unlikely to make much difference unless it has a very specific RAID setup to account for that.
Any chance you could post your servers specifications here and details of the setup?
Fillip will take a look and see if he can work out if there's perhaps a server issue somewhere that could be causing the issues and will try enabling/disabling other mods to see if they have a similar effect on load as well.
The size of your site isn't uncommon for our mods - DBTech itself has about 100k impressions per day, and we have sites on the same server hitting 2-300k per day. We have those mods installed as well as every other DBTech mod, and the other sites on the server are similar.
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We did have issues since we installed these ad ons but we did not realize, It was them causing all the fuss. We changed 4 server providers since then, figuring maybe we don't have enough resources but nothing fixed the issue. Last month, I hired someone to take a look at this issue, again he suggested that we don't have enough resources. This time we moved to Singlehop. We didn't get one dedicated but two dedicated servers(paying $800 a month now). Again, same thing happend. Yesterday, sanity prevailed and he decided to take a look at the add ons and as soon, we turned off your mods, site never worked any better.
Even at peak times, when we have around 2k people on, it wasn't taking any resources at all.
I hope after reading this, you won't just be blaming the resources.
I went through a lot and burnt a lot of $$ because of your mods.
Our members just loved your mods so much, that I have recieved several dozen emails requesting to have it back, so I'm pretty much stuck with you guys.
I hope you can seriously help me out with these.
Cosmic
Active member
The problem is that you're saying the mods cause these issues on all of these servers, but we have literally hundreds of servers that say otherwise. Could you post the specs of your server(s) and the setup you have with them - especially regarding the RAID setup and how the databases are stored/accessed between the two servers?
Disabling mods will reduce server resource usage, so it's not a surprise the site got faster when you disabled them - but these mods run on plenty of sites that get the same traffic or more than yours, and they run fine without needing $800 servers.
If you were right and it was an issue with how the mods were coded then DBTech itself wouldn't be able to run - between DBTech and the largest site on this server we clear 400k impressions per day. We also have about 10 other smaller forums on the server. If you were correct and it was these mods causing the issues you describe our server would be completely incapable of handling it.
Hopefully fillip will find something to explain why you're having problems - an issue with your database setup or one of your tables that's causing the problems, but there's simply no way that the issue can be the mods - I can't stress enough that we have literally hundreds of sites running them problem free versus one (yours) having issues.
Cosmic
We are running on server
Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
16 GB RAM
RAID 1
Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy
------------------------------------------------------------------------------
u0 RAID-1 OK - - - 465.651 Ri ON
VPort Status Unit Size Type Phy Encl-Slot Model
------------------------------------------------------------------------------
p0 OK u0 465.76 GB SATA 0 - WDC WD5003ABYX-01WE
p1 OK u0 465.76 GB SATA 1 - WDC WD5003ABYX-01WE
What specs of server you are using? Our DB server is separate and we have communication on private IPs.
What is your recommendation?
It seems u r running on Nginx !
Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
16 GB RAM
RAID 1
Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy
------------------------------------------------------------------------------
u0 RAID-1 OK - - - 465.651 Ri ON
VPort Status Unit Size Type Phy Encl-Slot Model
------------------------------------------------------------------------------
p0 OK u0 465.76 GB SATA 0 - WDC WD5003ABYX-01WE
p1 OK u0 465.76 GB SATA 1 - WDC WD5003ABYX-01WE
What specs of server you are using? Our DB server is separate and we have communication on private IPs.
What is your recommendation?
It seems u r running on Nginx !
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Cosmic
Active member
The first thing that stands out there is you are running 7,200rpm SATA hard drives. For a large forum that's simply too slow - you really need to be running 15k RPM SAS drives or SSDs. That's almost certainly your issue. Is your database server the same spec as the server you listed above?
With your server budget I would recommend switching your server up to a raid 1+0 setup on your DB server running 4 SAS drives or 4 SSDs if space isn't an issue. I'm surprised in all this time no one has told you that for large forums your bottleneck is almost certain to be the slow hard drives =/.
A new Ivy Bridge e1270 with 32gb Ram and 4 600gb SAS drives in Raid 10 should only be $400-500 per month, and would almost certainly handle what you're looking to do just fine without even requiring a second DB server.
I'm kinda surprised you're being charged $800 a month for 2x of the server you listed above, that's FAR more than it would be from someone like HiVelocity. You could likely get 2x of the server *I* listed above for $800 per month and it's basically double the specification. For the record if you do decide to switch hosts let me know and i'll see about getting you an extra discount as a DBTech customer.
EDIT: Our current setup is as follows -
CentOS 5.8 x86_64
2x Intel Xeon E5518
12GB FBDIMM RAM
2x 147GB SAS 15k RPM (RAID1)
We're bumping into the limit of this server though so we will be adding a DB server soon in all likelyhood
.
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Cosmic
Active member
Hi adeel,
Spoke to the manager over at HiVelocity and he's given me the name of someone who can make sure you get the best deal possible.
Send an email to Lee@hivelocity.net and CC steve@hivelocity.net (Steve is the manager). Let them know how many sites you're running, that it's forums and that just now load is spiking when things are hitting the database. Give them an idea of your traffic as well and let them know our biggest concern is the speed for accessing the DB, so 15k SAS or SSDs would be preferable we think - but Lee really knows his stuff, so he'll make sure you get the best setup possible.
Fillip is looking at your server just now, so far nothing is jumping out as being wrong with your database etc that would cause problems, but your overall load etc seems to back up the idea that the server just isn't ideal for the purpose you're using it for - you're paying a lot of money for something that's far from ideal.
Cosmic
Spoke to the manager over at HiVelocity and he's given me the name of someone who can make sure you get the best deal possible.
Send an email to Lee@hivelocity.net and CC steve@hivelocity.net (Steve is the manager). Let them know how many sites you're running, that it's forums and that just now load is spiking when things are hitting the database. Give them an idea of your traffic as well and let them know our biggest concern is the speed for accessing the DB, so 15k SAS or SSDs would be preferable we think - but Lee really knows his stuff, so he'll make sure you get the best setup possible.
Fillip is looking at your server just now, so far nothing is jumping out as being wrong with your database etc that would cause problems, but your overall load etc seems to back up the idea that the server just isn't ideal for the purpose you're using it for - you're paying a lot of money for something that's far from ideal.
Cosmic
Update: I've tested some of our products, here are my findings:
0.50 0.73 0.70 | 1,204 Users Online (95 members and 1,109 guests) - no dbtech mods
0.95 1.05 0.87 | 1,158 Users Online (95 members and 1,063 guests) - APTL enabled
0.74 1.33 1.64 | 1,148 Users Online (98 members and 1,050 guests) - APTL & AUT enabled
0.95 1.33 1.52 | 1,146 Users Online (101 members and 1,045 guests) - APTL, AUT, USM
As you can see, not a huge variation in server load was detected when enabling these mods. That being said, I saw random load spikes unrelated to the tests with the mods though (load would spike up to 4 when I wasn't doing anything, then settle back down, etc), which could be perceived as coming from the mods if they were happening at the time.
I left APTL, AUT and vBSlider active on your board.
0.50 0.73 0.70 | 1,204 Users Online (95 members and 1,109 guests) - no dbtech mods
0.95 1.05 0.87 | 1,158 Users Online (95 members and 1,063 guests) - APTL enabled
0.74 1.33 1.64 | 1,148 Users Online (98 members and 1,050 guests) - APTL & AUT enabled
0.95 1.33 1.52 | 1,146 Users Online (101 members and 1,045 guests) - APTL, AUT, USM
As you can see, not a huge variation in server load was detected when enabling these mods. That being said, I saw random load spikes unrelated to the tests with the mods though (load would spike up to 4 when I wasn't doing anything, then settle back down, etc), which could be perceived as coming from the mods if they were happening at the time.
I left APTL, AUT and vBSlider active on your board.
Cosmic
Active member
You were having load spikes while all mods were disabled during testing. The average load increase with the mods enabled wasn't a massive jump and any exponential changes you are seeing is because you are trying to run forums getting hundreds of thousands of database hits on a 7200RPM SATA setup.
Basically your server isn't capable of doing what you want it to, it's not a problem with the mods or something we can "fix" for you. You need a server setup more suited to handling large amounts of database usage and most likely a better CPU as well. The server you said you are running should only be $150-200 at most, if you're paying double that I would strongly suggest finding a better host.
so we just moved to hivelocity as you suggested and got these two servers
As soon, the 2 mods(Thanks/Like & Tagging) are turned on, the load goes to 2.50 without them, it staus around 0.50. Normal? It does slow down the site quite a bit.
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