Re: [ZODB-Dev] Undo differences between Z2 and Z3
Jim Fulton wrote: Chris Withers wrote: Jim Fulton wrote: Even if you did track reads, how would you distinguish an unsafe read as above from a normal read that shouldn't cause a conflict? A write (or the undo of a write) would conflict with any reads in later transactions. Wouldn't that, in effect, make just about all transactions conflict? cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Undo differences between Z2 and Z3
Chris Withers wrote: Jim Fulton wrote: Chris Withers wrote: Jim Fulton wrote: Even if you did track reads, how would you distinguish an unsafe read as above from a normal read that shouldn't cause a conflict? A write (or the undo of a write) would conflict with any reads in later transactions. Wouldn't that, in effect, make just about all transactions conflict? Possibly. Jim -- Jim Fulton mailto:[EMAIL PROTECTED] Python Powered! CTO (540) 361-1714http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] oids affected by a transaction
[Pascal Peregrina] I would like to know if there is a way to get the list of affected oids knowing a transcaction id. Nothing in the storage API reveals this. If not, any idea about what would be the simplest way to do that for a FileStorage ZODB? Search the output of fsdump.py: http://zope.org/Wikis/ZODB/FileStorageBackup for tid, and suck out the oid=number fields from following lines. You could also look at the internal code executed by FileStorage.undo(). One way or another, you have to search the .fs file for the transaction's record, then pick apart the data records the transaction record contains. ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
