Re: New command suggestion (was Re: Modifying databases manually)

This WebDNA talk-list message is from

1997

It keeps the original formatting. numero = 13832
interpreted = N
texte = >Changing out databases has become a problem for us, since we generally have>20 or more connections at any given time. I hate to deny users access to>our site by quitting Webstar or Refusing Connections for ANY amount of>time, so I have a proposal.>>A new command called $Reload with the argument db=file.db. This command>would cause Webcat to throw away the database in RAM and reload the data>from disk. Obviously, if this database is being modified, you would want>to flush it before making any changes to the file. This would allow the>user to perform the following sequence without shutting down Webstar or the>CGI:>>1) $Flushdatabases (to write out any changes)>2) Load a template with an [Applescript] to rename file.db to file.db.old,>file.db.new to file.db or manually copy the file in the Finder (meanwhile>someone accesses the site and reopens the old database)>3) $Reload?db=file.db (dump file.db from RAM without writing to disk, load>new file.db into RAM)>>Note that this only makes sense for databases that aren't being modified by>webcat all the time (or at all). We have several databases that are only>modified by Admin pages or by an external program (like Excel or 4D), and>having a way to swap the database in without restarting Webstar would be a>big help.>>We would still have to resort to a shutdown to change out webcat-modified>database files to ensure consistency.>>What does everyone think? Or am I missing an easier way to do this?>>Thanks,>>-Dale>>--->Dale LaFountain | mailto:dalel@dhorse.com>Director of MIS, WebMaster | http://www.dhorse.com/>Dark Horse Comics, Inc. |Phone: 503-652-8815 x324>>Yes please, This would be a very useful facility.jeremyJeremy PocockNetCommerce Ltdhttp://www.NetCommerce.co.uk----------------------------------------------------------------------Tel: +44 (0)1703 456656Fax: +44 (0)1703 453231----------------------------------------------------------------------Email address : jpocock@NetCommerce.co.uk----------------------------------------------------------------------Buy It On-Line in 97!http://www.ShopsOnTheNet.co.ukhttp://www.ShopsOnTheNet.com----------------------------------------------------------------------InfoDisk - Address and Telephone Numbersfor over 44 million UK residents on CD-RomOrder Your Copy Now from IDDirect!http://www.iddirect.co.uk----------------------------------------------------------------------Europe's Premier On-Line CD Rom Retailerhttp://www.CDDirect.co.uk Associated Messages, from the most recent to the oldest:

>Changing out databases has become a problem for us, since we generally have>20 or more connections at any given time. I hate to deny users access to>our site by quitting Webstar or Refusing Connections for ANY amount of>time, so I have a proposal.>>A new command called $Reload with the argument db=file.db. This command>would cause Webcat to throw away the database in RAM and reload the data>from disk. Obviously, if this database is being modified, you would want>to flush it before making any changes to the file. This would allow the>user to perform the following sequence without shutting down Webstar or the>CGI:>>1) $Flushdatabases (to write out any changes)>2) Load a template with an [Applescript] to rename file.db to file.db.old,>file.db.new to file.db or manually copy the file in the Finder (meanwhile>someone accesses the site and reopens the old database)>3) $Reload?db=file.db (dump file.db from RAM without writing to disk, load>new file.db into RAM)>>Note that this only makes sense for databases that aren't being modified by>webcat all the time (or at all). We have several databases that are only>modified by Admin pages or by an external program (like Excel or 4D), and>having a way to swap the database in without restarting Webstar would be a>big help.>>We would still have to resort to a shutdown to change out webcat-modified>database files to ensure consistency.>>What does everyone think? Or am I missing an easier way to do this?>>Thanks,>>-Dale>>--->Dale LaFountain | mailto:dalel@dhorse.com>Director of MIS, WebMaster | http://www.dhorse.com/>Dark Horse Comics, Inc. |Phone: 503-652-8815 x324>>Yes please, This would be a very useful facility.jeremyJeremy PocockNetCommerce Ltdhttp://www.NetCommerce.co.uk----------------------------------------------------------------------Tel: +44 (0)1703 456656Fax: +44 (0)1703 453231----------------------------------------------------------------------Email address : jpocock@NetCommerce.co.uk----------------------------------------------------------------------Buy It On-Line in 97!http://www.ShopsOnTheNet.co.ukhttp://www.ShopsOnTheNet.com----------------------------------------------------------------------InfoDisk - Address and Telephone Numbersfor over 44 million UK residents on CD-RomOrder Your Copy Now from IDDirect!http://www.iddirect.co.uk----------------------------------------------------------------------Europe's Premier On-Line CD Rom Retailerhttp://www.CDDirect.co.uk Jeremy Pocock

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