Re: Strange intermittent WebDNA problems
This WebDNA talk-list message is from 2008
It keeps the original formatting.
numero = 70067
interpreted = N
texte = 8 apr 2008 kl. 16.51 skrev Donovan Brooke: > Christer Olsson wrote: > >> We had one db on one of our servers failing yesterday, and have >> seen two occassions of WebDNA stopping to server pages the last >> week. These servers has been running without a hickup "forever" >> and we have never seen this happen before. >> Best, >> Christer > > > I think it would be wise for the group if these scenerios could > accompany details like: > > * Database size (MB) > * Load ("heavy" being transactions per seconds or something) > * Is safe-write on or not? > * Are you finding mal-formed record sets when looking at the .db? > * Does this database interrelate with other .db's? > * Do you find any difference of using [exclusivelock..] as apposed > to not using it? > > I am currently dealling with some client database issues as well, > and I think if more information was out there it could be helpful. > > The "worked great for years" thing is something I'm familiar with > too. Recently one of my clients sites appeared to have a core OS > date/time stamp issue (networed time server did something bad at > spring forward). I believe this may have messed with the safe-write > system... which then caused a domino affect on some of the heavily > used .db's that it was protecting. I was able to isolate the time > when the core OS date/time clock was munged.. the .db issues started > happing about an hour or so later. Both our servers has been running without a hickup for several years, and both stopped serving WebDNA pages the very exact same day about two weeks ago. A restart cured the problem, but ever since we have seen these intermittent blackouts, with no WebDNA engine running. We have plenty of disk space and plenty of RAM on both servers, and most of our dbs are really small. Traffic is low these days, since we are not developing any new sites in WebDNA, and most of the old ones has been converted to other languages. Both servers running Mac OS X, one on 10.3.9 and one 10.4.9. Best, Christer ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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8 apr 2008 kl. 16.51 skrev Donovan Brooke: > Christer Olsson wrote: > >> We had one db on one of our servers failing yesterday, and have >> seen two occassions of WebDNA stopping to server pages the last >> week. These servers has been running without a hickup "forever" >> and we have never seen this happen before. >> Best, >> Christer > > > I think it would be wise for the group if these scenerios could > accompany details like: > > * Database size (MB) > * Load ("heavy" being transactions per seconds or something) > * Is safe-write on or not? > * Are you finding mal-formed record sets when looking at the .db? > * Does this database interrelate with other .db's? > * Do you find any difference of using [exclusivelock..] as apposed > to not using it? > > I am currently dealling with some client database issues as well, > and I think if more information was out there it could be helpful. > > The "worked great for years" thing is something I'm familiar with > too. Recently one of my clients sites appeared to have a core OS > date/time stamp issue (networed time server did something bad at > spring forward). I believe this may have messed with the safe-write > system... which then caused a domino affect on some of the heavily > used .db's that it was protecting. I was able to isolate the time > when the core OS date/time clock was munged.. the .db issues started > happing about an hour or so later. Both our servers has been running without a hickup for several years, and both stopped serving WebDNA pages the very exact same day about two weeks ago. A restart cured the problem, but ever since we have seen these intermittent blackouts, with no WebDNA engine running. We have plenty of disk space and plenty of RAM on both servers, and most of our dbs are really small. Traffic is low these days, since we are not developing any new sites in WebDNA, and most of the old ones has been converted to other languages. Both servers running Mac OS X, one on 10.3.9 and one 10.4.9. Best, Christer ------------------------------------------------------------- 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/
Christer Olsson
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