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  #1  
Old 27 Aug 2013, 08:09
abdobasha2004's Avatar
abdobasha2004 abdobasha2004 is offline
 
Join Date: Aug 2008
Site down with normal server load !

Can anyone please suggest why a vbulletin forum would crash for 1-2 min the come online again, I have very normal server load average, however I think server stops.
This problem only happen when there are a lot of online visitors, 8k or more...
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  #2  
Old 27 Aug 2013, 11:30
ozzy47's Avatar
ozzy47 ozzy47 is offline
 
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Real name: Chris
Check your error_logs (if you don't know where they are, ask your host). They should tell you the error that is causing the site to go down.
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  #3  
Old 27 Aug 2013, 17:49
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abdobasha2004 abdobasha2004 is offline
 
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I only have deprecated errors, which I think do not case site go down?
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  #4  
Old 27 Aug 2013, 20:09
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WEBDosser WEBDosser is offline
 
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Any database error show?.
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  #5  
Old 28 Aug 2013, 00:12
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abdobasha2004 abdobasha2004 is offline
 
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No database error !!
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  #6  
Old 28 Aug 2013, 00:25
snakes1100 snakes1100 is offline
 
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Real name: Anthony
Is this a dedicated/vps server or is it a vhosted site on a shared server?
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  #7  
Old 28 Aug 2013, 00:26
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Max Taxable Max Taxable is offline
 
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Maybe it's the NSA hacking you!
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  #8  
Old 28 Aug 2013, 00:32
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abdobasha2004 abdobasha2004 is offline
 
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1- Dedicated server 16 G RAM 2 Quad processors !
2- What is NSA??
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  #9  
Old 28 Aug 2013, 00:37
snakes1100 snakes1100 is offline
 
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Real name: Anthony
lmfao @ ? #2

So what is the error on the site if any, after it "crashes" or stops working?
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  #10  
Old 28 Aug 2013, 00:42
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abdobasha2004 abdobasha2004 is offline
 
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I get no error, just site not loading for a min or even less 30 sec, then automatically goes back online
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  #11  
Old 28 Aug 2013, 00:48
snakes1100 snakes1100 is offline
 
Join Date: Dec 2001
Real name: Anthony
Unfortuantely, thats not a "crash", it wouldnt be easy to diagnose either, have you checked your server logs while this is going on?

server logs
apache logs
etc

This could even be a simple BW issue, FW issue etc
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  #12  
Old 28 Aug 2013, 01:04
ozzy47's Avatar
ozzy47 ozzy47 is offline
 
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Real name: Chris
When it does happen, are you able to replicate it a few times in a row, or does it happen sporadically?
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  #13  
Old 28 Aug 2013, 01:15
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abdobasha2004 abdobasha2004 is offline
 
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1- my host is following with server logs, he needs to catch the logs during the downtime, and it is a little bit hard
2- I happens sporadically but only when there are a lot of visitors online, e.g when 10k online downtime, 11k no downtime, 9k downtime...
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  #14  
Old 28 Aug 2013, 01:17
ozzy47's Avatar
ozzy47 ozzy47 is offline
 
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Real name: Chris
I was hoping you could reproduce it multiple times in a row, but ohh well. Glad to hear your host is looking into it, will be interesting to see what they say.
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  #15  
Old 28 Aug 2013, 03:01
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Lynne Lynne is offline
 
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Real name: Lynne
When it comes back, are all the users still shown as online or does it appear that the users start showing at a low number and increase as time goes on? It could be that mysql is restarting if that is the case. So, check your mysql logs and see what is in there.
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