Re: Freeze
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 47694
interpreted = N
texte = Hi, I'm comming back with my freezing problem.The exact historic is that I was usingMac OS9.1 Web*4.5 Webcatalog 4.5I tried every thing I new to solve this freezing problem.As I was not fixing the problem I tried to come back toMac OS8.6 Web*4.4 Webcatalog 4.0Formating the HDThought it might solved the problem.It did'nt workI have tried 3 differents Virus Software no virus foundI have zapped the PRAM but my version of TechTool doesn't zapp the PRAMI also tried to get the server running without Web*Mail and without WebcatSo I don't think the problem is coming from WebcatThe problem still existHow else can I do!!!Thank's For helpLawrencele 11/02/03 3:54, Kenneth Grome à kengrome@webdna.net a écrit :>>> Do I really have to download the entire webdna 4.5.1 package simply>>> to read the change history?>>> >>> If not, then why isn't there a link to the change history in a>>> prominent place in the developer resource center?>> >> The Change History is in the Command Reference Section-Appendix C>> http://webdnadocs.smithmicro.com/WebDNA%20Change%20History.html> > > Yes, it's in the section entitled WebDNA 4.5.1 Language Reference> which is misleading but nevertheless it's in there. And here's what> it says about this new feature:> > New 'Safe-Write' preference - Enabled by default. When enabled, the> WebDNA engine creates a temporary file when writing the contents of a> database to disk. The temporary file contents are then moved to the> original database file after the entire database is completely> flushed to disk. This helps to eliminate corruption of the original> database file if there is an interruption during the database write> process.> > In other words, instead of just writing the changes to RAM or to a> single disk file, this new preference does the following:> > 1- closes a db upon every append, replace and delete> 2- writes a new temporary db file to disk> 3- deletes the original db file> 4- renames the temporary file to the original db file name> > And of course since the original db file has been deleted and another> file has taken its place, the new file is not yet open in webdna's> RAM cache ... so it takes additional time for the new db file to be> opened before any visitor can use it.> > And if the request that opens the closed db file is an append,> replace or delete, the file will be immediately closed and replaced> again -- thus eliminating all the benefits of RAM-caching of data.> > Clearly this takes a lot more time than the old way of writing to a> db, especially with large db files and slow OS's ...> > > Sincerely,> Kenneth Grome> > ---------------------------------------------------> WebDNA Professional Training and Development Center> 175 J. Llorente Street +63 (32) 255-6921> Cebu City, Cebu 6000 kengrome@webdna.net> Philippines http://www.webdna.net> ---------------------------------------------------> > -------------------------------------------------------------> This message is sent to you because you are subscribed to> the mailing list
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Hi, I'm comming back with my freezing problem.The exact historic is that I was usingMac OS9.1 Web*4.5 Webcatalog 4.5I tried every thing I new to solve this freezing problem.As I was not fixing the problem I tried to come back toMac OS8.6 Web*4.4 Webcatalog 4.0Formating the HDThought it might solved the problem.It did'nt workI have tried 3 differents Virus Software no virus foundI have zapped the PRAM but my version of TechTool doesn't zapp the PRAMI also tried to get the server running without Web*Mail and without WebcatSo I don't think the problem is coming from WebcatThe problem still existHow else can I do!!!Thank's For helpLawrencele 11/02/03 3:54, Kenneth Grome à kengrome@webdna.net a écrit :>>> Do I really have to download the entire webdna 4.5.1 package simply>>> to read the change history?>>> >>> If not, then why isn't there a link to the change history in a>>> prominent place in the developer resource center?>> >> The Change History is in the Command Reference Section-Appendix C>> http://webdnadocs.smithmicro.com/WebDNA%20Change%20History.html> > > Yes, it's in the section entitled WebDNA 4.5.1 Language Reference> which is misleading but nevertheless it's in there. And here's what> it says about this new feature:> > New 'Safe-Write' preference - Enabled by default. When enabled, the> WebDNA engine creates a temporary file when writing the contents of a> database to disk. The temporary file contents are then moved to the> original database file after the entire database is completely> flushed to disk. This helps to eliminate corruption of the original> database file if there is an interruption during the database write> process.> > In other words, instead of just writing the changes to RAM or to a> single disk file, this new preference does the following:> > 1- closes a db upon every append, replace and delete> 2- writes a new temporary db file to disk> 3- deletes the original db file> 4- renames the temporary file to the original db file name> > And of course since the original db file has been deleted and another> file has taken its place, the new file is not yet open in webdna's> RAM cache ... so it takes additional time for the new db file to be> opened before any visitor can use it.> > And if the request that opens the closed db file is an append,> replace or delete, the file will be immediately closed and replaced> again -- thus eliminating all the benefits of RAM-caching of data.> > Clearly this takes a lot more time than the old way of writing to a> db, especially with large db files and slow OS's ...> > > Sincerely,> Kenneth Grome> > ---------------------------------------------------> WebDNA Professional Training and Development Center> 175 J. Llorente Street +63 (32) 255-6921> Cebu City, Cebu 6000 kengrome@webdna.net> Philippines http://www.webdna.net> ---------------------------------------------------> > -------------------------------------------------------------> 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/
lb Lawrence
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