Re: $flushcache causes crash
This WebDNA talk-list message is from 2000
It keeps the original formatting.
numero = 32593
interpreted = N
texte = Fixed it for b6, thanks!To answer your question about what to expect with this new version regarding bugs like this, I can give you some clues based on the code changes. We have completely replaced the underlying multithreading mechanism with a computer scientist's multi-reader/single-writer caching code. This means that in general we expect performance and robustness to be much better with this version. In specific, though, we assume that beta testers will find things that we had not anticipated. Judging from discussions on this list, I'm afraid beta testers have not been exercising the code as much as in other betas, so we have to rely on internal tests more than usual.The new code instantly detects deadlocks using a cyclic tree-walk algorithm, so the old timeout (pseudo deadlock-detection) preference is no longer valid or needed. [ExclusiveLock] has been documented and upgraded to allow for multiple dbs to be locked at once: this should help with cases where your WebDNA is inherently deadlockable.The new code has also modified the WebDNA tag parser significantly to accommodate the new XML-style syntax. We have not seen any problems related to this so far, but it seems that few people are using the new syntax, so we have to rely on internal testing more than usual. Even classic syntax may be affected, so beta testers should be alert to any semantic differences that appear in existing code.Grant Hulbert, Director of Engineering ********************************** Smith Micro, Internet Solutions Div | eCommerce (WebCatalog) 16855 West Bernardo Drive, #380 | ------------------------- San Diego, CA 92127 | Software & Site Development Main Line: (858) 675-1106 | http://www.smithmicro.com Fax: (858) 675-0372 **********************************############################################################# This message is sent to you because you are subscribed to the mailing list
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Fixed it for b6, thanks!To answer your question about what to expect with this new version regarding bugs like this, I can give you some clues based on the code changes. We have completely replaced the underlying multithreading mechanism with a computer scientist's multi-reader/single-writer caching code. This means that in general we expect performance and robustness to be much better with this version. In specific, though, we assume that beta testers will find things that we had not anticipated. Judging from discussions on this list, I'm afraid beta testers have not been exercising the code as much as in other betas, so we have to rely on internal tests more than usual.The new code instantly detects deadlocks using a cyclic tree-walk algorithm, so the old timeout (pseudo deadlock-detection) preference is no longer valid or needed. [exclusivelock] has been documented and upgraded to allow for multiple dbs to be locked at once: this should help with cases where your WebDNA is inherently deadlockable.The new code has also modified the WebDNA tag parser significantly to accommodate the new XML-style syntax. We have not seen any problems related to this so far, but it seems that few people are using the new syntax, so we have to rely on internal testing more than usual. Even classic syntax may be affected, so beta testers should be alert to any semantic differences that appear in existing code.Grant Hulbert, Director of Engineering ********************************** Smith Micro, Internet Solutions Div | eCommerce (WebCatalog) 16855 West Bernardo Drive, #380 | ------------------------- San Diego, CA 92127 | Software & Site Development Main Line: (858) 675-1106 | http://www.smithmicro.com Fax: (858) 675-0372 **********************************############################################################# 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 To switch to the INDEX mode, E-mail to Send administrative queries to
Grant Hulbert
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