Re: Strange intermittent WebDNA problems
This WebDNA talk-list message is from 2008
It keeps the original formatting.
numero = 70092
interpreted = N
texte = Yes I would definitely get away from the idea that it is some connection or conspiracy with Smith Micro. We have quite a few webdna servers and most are stable. The least stable machine is one where we do not control the development environment and the user does not stick to a standardized coding methodology and so every week or so his machine is scheduled to restart webdna and IIS. Robert Minor Director of Internet Services ------------------------------------------------------------ Cybermill Communications http://www.cybermill.com http://www.merchantmaker.com Providing Ecommerce and interactive website development and hosting services on Macintosh, Windows NT, *nix, and AS/400. Complete ddos proof hosting solutions and network services. On Apr 9, 2008, at 12:56 06, Jym Duane wrote: > We have had issues of cpu running up cpu usage and stopping or > slowing greatly webDNA. > this is usually a poorly written webbot hitting a series of links > in calendars or data requests and leaving off or altering part of > the string so that each request is calling on a lot more results > than was designed in the code. > > The long term fix is for me to fix all my code to return nothing if > a parameter is missing. > also some exclusive locks might help. > > in the mean time we manage this with a script that watches cpu usage > and restarts apache and webcatalog every few minutes until the cpu > is back down to where it belongs. > > it takes more restarts depending on how severe in number of requests > and how many processes are launched in requests in apache. > > we are Linux redhat 9 and webcat 6.0a 1gig ram. > > jym > > Steve Craig wrote: >> Hi >> >>> Christer, since this is a reply to my post... it is odd that two of >>> your servers started experiencing the problem the same time. Are >>> those servers using a sync to a time server? >> >> Between myself and a friend who is not on the list, we have 2 >> WebDNA machines and they virtually always go off within an hour of >> each other. I have never coded anything on his and he has never >> coded anything on mine. There are no common sites whatsoever, in >> fact we usually have taken very different ways to solve coding >> things in the past. So basically no connection other than existing >> in the same physical rack. We use the same supplier for access but >> are on different subnets. >> >>> Beyond that, I just don't think any of you guys/gals are posting >>> enough >>> details to make any sort of rational judgment of what is going on. >> >> That's the problem, there is nothing to tell, we have perfectly >> normal setups with machines that have worked for years without >> problem then this all started. Only thing that has been applied is >> the Apple updates so it kinda has to be related to that I think but >> where to start looking - it is so random. I host about 60 sites all >> of which I have coded and all of which have been around for ages. >> >>> I think I'll defer to Steve Craig's assessment and just blame it >>> on SMSI attacking our servers! ;-) >> >> Well I need to blame it on something and seems very strange that >> there are others experiencing it. Seriously though I think it must >> be an OSX update issue but it would be interesting to know when >> other machines go off just in case they all go in a similar time >> period. >> >> On a slightly different subject, I am testing a server using >> Leopard and WebDNA, so far so good but I'm wondering if anyone >> knows of some software I can start on a few client machines to soak >> test the server for while? I'd like to hit it with lots of hits >> over a week or so just to see if anything creeps up. Anyone any >> suggestions? >> >> Cheers >> ======================================== >> Steve Craig - Asylum Interactive Ltd >> Tel +44 1330 860550 Fax +44 1330 860880 >> ======================================== >> http://www.asylumweb.com >> Email: steve@asylumweb.com >> Skype: s.craig - iChat: steve.craig >> ======================================== >> >> >> >> >> >> >> ------------------------------------------------------------- >> This message is sent to you because you are subscribed to >> the mailing list
. >> To unsubscribe, E-mail to: >> To switch to the DIGEST mode, E-mail to > > >> Web Archive of this list is at: http://webdna.smithmicro.com/ >> >> > > -- > > Jym Duane - CTO - Purpose Media > Creating Your Success Story > Marketing : Television - Internet - Print > > Phone: (877) 443-1323 Email: jym@purposemedia.com Web: www.purposemedia.com > > Oregon Office - www.GuideToOregon.com > PO Box 1725, Jacksonville, OR 97530 > > California Office - www.OrangeCounty.net > PO Box 2025, Capistrano Beach, CA 92624 > > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to > > Web Archive of this list is at: http://webdna.smithmicro.com/ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Associated Messages, from the most recent to the oldest:
Yes I would definitely get away from the idea that it is some connection or conspiracy with Smith Micro. We have quite a few webdna servers and most are stable. The least stable machine is one where we do not control the development environment and the user does not stick to a standardized coding methodology and so every week or so his machine is scheduled to restart webdna and IIS. Robert Minor Director of Internet Services ------------------------------------------------------------ Cybermill Communications http://www.cybermill.com http://www.merchantmaker.com Providing Ecommerce and interactive website development and hosting services on Macintosh, Windows NT, *nix, and AS/400. Complete ddos proof hosting solutions and network services. On Apr 9, 2008, at 12:56 06, Jym Duane wrote: > We have had issues of cpu running up cpu usage and stopping or > slowing greatly webDNA. > this is usually a poorly written webbot hitting a series of links > in calendars or data requests and leaving off or altering part of > the string so that each request is calling on a lot more results > than was designed in the code. > > The long term fix is for me to fix all my code to return nothing if > a parameter is missing. > also some exclusive locks might help. > > in the mean time we manage this with a script that watches cpu usage > and restarts apache and webcatalog every few minutes until the cpu > is back down to where it belongs. > > it takes more restarts depending on how severe in number of requests > and how many processes are launched in requests in apache. > > we are Linux redhat 9 and webcat 6.0a 1gig ram. > > jym > > Steve Craig wrote: >> Hi >> >>> Christer, since this is a reply to my post... it is odd that two of >>> your servers started experiencing the problem the same time. Are >>> those servers using a sync to a time server? >> >> Between myself and a friend who is not on the list, we have 2 >> WebDNA machines and they virtually always go off within an hour of >> each other. I have never coded anything on his and he has never >> coded anything on mine. There are no common sites whatsoever, in >> fact we usually have taken very different ways to solve coding >> things in the past. So basically no connection other than existing >> in the same physical rack. We use the same supplier for access but >> are on different subnets. >> >>> Beyond that, I just don't think any of you guys/gals are posting >>> enough >>> details to make any sort of rational judgment of what is going on. >> >> That's the problem, there is nothing to tell, we have perfectly >> normal setups with machines that have worked for years without >> problem then this all started. Only thing that has been applied is >> the Apple updates so it kinda has to be related to that I think but >> where to start looking - it is so random. I host about 60 sites all >> of which I have coded and all of which have been around for ages. >> >>> I think I'll defer to Steve Craig's assessment and just blame it >>> on SMSI attacking our servers! ;-) >> >> Well I need to blame it on something and seems very strange that >> there are others experiencing it. Seriously though I think it must >> be an OSX update issue but it would be interesting to know when >> other machines go off just in case they all go in a similar time >> period. >> >> On a slightly different subject, I am testing a server using >> Leopard and WebDNA, so far so good but I'm wondering if anyone >> knows of some software I can start on a few client machines to soak >> test the server for while? I'd like to hit it with lots of hits >> over a week or so just to see if anything creeps up. Anyone any >> suggestions? >> >> Cheers >> ======================================== >> Steve Craig - Asylum Interactive Ltd >> Tel +44 1330 860550 Fax +44 1330 860880 >> ======================================== >> http://www.asylumweb.com >> Email: steve@asylumweb.com >> Skype: s.craig - iChat: steve.craig >> ======================================== >> >> >> >> >> >> >> ------------------------------------------------------------- >> This message is sent to you because you are subscribed to >> the mailing list . >> To unsubscribe, E-mail to: >> To switch to the DIGEST mode, E-mail to > > >> Web Archive of this list is at: http://webdna.smithmicro.com/ >> >> > > -- > > Jym Duane - CTO - Purpose Media > Creating Your Success Story > Marketing : Television - Internet - Print > > Phone: (877) 443-1323 Email: jym@purposemedia.com Web: www.purposemedia.com > > Oregon Office - www.GuideToOregon.com > PO Box 1725, Jacksonville, OR 97530 > > California Office - www.OrangeCounty.net > PO Box 2025, Capistrano Beach, CA 92624 > > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to > > Web Archive of this list is at: http://webdna.smithmicro.com/ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Bob Minor
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