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Guest Message by DevFuse

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Intermittent site hang lockup?


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73 replies to this topic

#21 OFFLINE   David MacLeod

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Posted 29 June 2013 - 04:49 PM

yes, all it did was lube the drives up.


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#22 ONLINE   David Bott

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Posted 29 June 2013 - 04:55 PM

Ok, well I was not sure you wanted me to use your name...SO...GOOD...THANKS DAVID for all your help this afternoon.

 

What you all do not know is that when I tried to upgrade MySQL, well, it all went very bad.  I put our a call for help over on the IP.Boards site for admin help and look who was their...Our very own David.  :)

 

So thanks again.  (And yes, I put out a note to look at replacing the server itself with a more current OS.  It is not the server that is our issue, it is an older OS that has no upgrade path from 5.9 to 6.  So we need to start fresh and move everything over to a new box even though this is a 8 processor machine with 16 gigs RAM etc.)


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DISCLAIMER: All spelling and grammatical errors done on purpose for the proofreadingly challenged.


#23 OFFLINE   David MacLeod

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Posted 29 June 2013 - 05:33 PM

due to time issues on my end I cannot devote the time really needed but I am suspecting there is a socket issue with xcache and centos 5.9.

I could be wrong though, have not had chance to dig deeply


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#24 OFFLINE   David MacLeod

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Posted 29 June 2013 - 05:46 PM

lets see if this works.


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#25 OFFLINE   Stewart Vernon

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Posted 29 June 2013 - 05:51 PM

That answers some of the "what blew up" questions I had...  I noticed the error page for a while today, some kind of SQL database error... then the Web site stopped responding even with an error for a while after that....  I decided to try again and see if we were back up yet.


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#26 OFFLINE   David MacLeod

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Posted 29 June 2013 - 05:53 PM

some of it was also me restarting services after I started to work on it, so between 7 and 730pm mostly it was me.


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#27 OFFLINE   David MacLeod

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Posted 29 June 2013 - 06:15 PM

seems ok now, I have been hitting links for 20+ min straight.

750 to 850 online when doing it and was smooth for me.

will monitor tomorrow.


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#28 ONLINE   David Bott

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Posted 29 June 2013 - 10:03 PM

Ok, we seemed to have some issues with the MySQL config.  I THINK I have it sorted out as of the writing of this post.   We shall see.


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#29 OFFLINE   Stewart Vernon

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Posted 30 June 2013 - 01:52 AM

I noticed the site was down again earlier... forgot to notice the time... then I got distracted with TV and didn't check back in until now.


-- I like to go fast (not really)


#30 OFFLINE   David MacLeod

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Posted 30 June 2013 - 07:26 AM

my dsl crapped out last night so was not able to keep eye on much, sorry


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#31 OFFLINE   longrider

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Posted 30 June 2013 - 09:30 AM

Just experienced the issue today, 9:28AM MT, took about 2 minutes to get a response


My Setup


#32 OFFLINE   RAD

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Posted 30 June 2013 - 09:36 AM

Also happened here around the same time.

See post My Setup for configuration info.


#33 ONLINE   David Bott

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Posted 30 June 2013 - 10:23 AM

Pondering, their is nothing in the logs at that time showing any issues with the database or connections etc.   As far as 2 mins to get a response, that I would think the browser would have timed out before that.  So even more lost.

 

When this happens...can you traceroute to the site?  Wondering if it is a network issue and I can only tell that with a trace.


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#34 OFFLINE   David MacLeod

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Posted 30 June 2013 - 10:29 AM

wonder if thats apache prefork (non threaded) bog

any idea how many online at that point?

server is also using suphp, there is evidence that can cause slowdowns too. unsure of who else is hosted on the server so could not really say if thats needed or not.


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#35 OFFLINE   longrider

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Posted 30 June 2013 - 11:02 AM

Pondering, their is nothing in the logs at that time showing any issues with the database or connections etc.   As far as 2 mins to get a response, that I would think the browser would have timed out before that.  So even more lost.

 

When this happens...can you traceroute to the site?  Wondering if it is a network issue and I can only tell that with a trace.

David, I will do a trace if it happens to me again. I know it is not my connection, I have verified that is functional while DBSTalk is not responding.  As for the timeout, when I know it is getting close to timing out I usually stop that load and either try again or try a different page on the site. The second attempts or alternate pages also do not load, if I do let it time out and use the browsers 'try again' it times out very quickly the second time


My Setup


#36 ONLINE   David Bott

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Posted 30 June 2013 - 11:13 AM

Hi, thanks.  

 

What I am looking to see when you are seeing the issue is a traceroute.  I ask for while your connection to other sites might be good, I am trying to see if it at the network center I am in.  Thus as trace can show me is their are any issues network wise at the time.

 

I just made a few change, but I do not think it will de another other than to give me something else to look at time wise.

 

So, when it happens, note the time (The severs is in CT)  and if you can catch a trace route while it is happening....great!  Post it here.

 

Thank you for the help.


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#37 OFFLINE   RAD

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Posted 30 June 2013 - 11:21 AM

I'll also try to get a traceroute next time it happens. I did mention that I'm able to ping the site while it's hung, <20ms times. I've also pinged with a 1400 byte packet and while response time a tad higher also works fine, no drops.

See post My Setup for configuration info.


#38 OFFLINE   RAD

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Posted 30 June 2013 - 12:05 PM

Hung up again, both IOS client, IOS Safari broswer and PC with IE 9.0 browser happened around 13:00 CDT. While I was posting this the site hung up again for about a minute. Pings and traceroute taken while site hung below:

 

Ping statistics for 72.9.159.119:
    Packets: Sent = 34, Received = 34, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 17ms, Maximum = 30ms, Average = 19ms

 

Tracing route to www.dbstalk.com [72.9.159.119]
over a maximum of 30 hops:

  1    <1 ms     1 ms    <1 ms  192.168.10.1
  2     *        *        *     Request timed out.
  3    17 ms     9 ms     9 ms  tge7-3.austtxs-er01.texas.rr.com [66.68.1.105]
  4     9 ms    10 ms     7 ms  tge8-1.trswtx1202h.texas.rr.com [24.175.41.193]

  5    15 ms    15 ms    15 ms  te0-10-0-0.austtxrdcsc-cr02.texas.rr.com [24.27.
13.96]
  6    18 ms    23 ms    15 ms  agg22.hstntxl3-cr01.texas.rr.com [24.175.41.48]

  7    17 ms    19 ms    19 ms  ae-4-0.cr0.hou30.tbone.rr.com [66.109.6.54]
  8    20 ms    20 ms    18 ms  ae-0-0.pr0.dfw10.tbone.rr.com [66.109.6.181]
  9    17 ms    17 ms    17 ms  107.14.16.186
 10    31 ms    18 ms    20 ms  ae-2-70.edge3.Dallas1.Level3.net [4.69.145.72]
 11    20 ms    21 ms    23 ms  COLO4-DALLA.edge3.Dallas1.Level3.net [8.9.232.74
]
 12    28 ms    19 ms    21 ms  72.249.128.110
 13    22 ms    18 ms    25 ms  dbnet.bott.net [72.9.159.119]

Trace complete.


See post My Setup for configuration info.


#39 OFFLINE   David MacLeod

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Posted 30 June 2013 - 12:09 PM

when it bogs it does recover on its own now correct?

no sql or page not found errors now?


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#40 OFFLINE   Drucifer

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Posted 30 June 2013 - 12:12 PM

Was doing fine until I hit the link in the email notification for this thread and got another delay of several minutes.


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