Our subclass of EOEditingContext creates a new EO and relates it to all the EO's in the inserted and updated lists.
On Sep 24, 2010, at 1:37 PM, Chuck Hill wrote: > How is trans_id updated? > > > On Sep 24, 2010, at 8:56 AM, Ken Anderson wrote: > >> All, >> >> I have an odd problem I'm wondering if anyone else has seen before. >> >> I have apps that do high throughput processing of data - many times a >> second. It is single threaded, and uses a single EOF stack. I'm sure it's >> single threaded because the requests are coming in via an inbound queue, not >> any kind of front end. >> >> Every once in a while under significantly high load, I get a few optimistic >> lock exceptions in a row, on rows that are only being touched by this app. >> We audit every update, and I can look into the audit tables and verify that >> nothing else has modified the record except this app. >> >> It's almost like the snapshot has not been recorded properly before the next >> request is processed, so EOF thinks something else updated the value. >> >> Our locking is implemented on a single column, trans_id, which is updated >> with every save. The audit table also saves the trans_id that's responsible >> for moving the record into audit, and all the values match in succession. >> >> Has anyone had anything like this happen? Running 5.4.3 on Linux. and >> no... no Wonder. >> >> Ken _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Webobjects-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net >> >> This email sent to [email protected] > > -- > Chuck Hill Senior Consultant / VP Development > > Practical WebObjects - for developers who want to increase their overall > knowledge of WebObjects or who are trying to solve specific problems. > http://www.global-village.net/products/practical_webobjects > > > > > > > _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
