> -----Original Message----- > From: [email protected] [mailto:activeperl- > [email protected]] On Behalf Of Octavian Rasnita > Sent: 07 January 2012 18:45 > To: [email protected] > Subject: Using Parallel::ForkManager with ActivePerl > > Hi, > > In the POD documentation of Parallel::ForkManager I read that it can > share the $dbh db handle among threads, but when I tried it with > ActivePerl, it gave the following error: > > "DBD::mysql::db clone failed: handle 2 is owned by thread 2944fc not > current thread 24475cc (handles can't be shared between threads and > your driver may need a CLONE method added) at..." > > Does this happen because Perl can't use threads under Windows, but only > a kind of fork() as pseudo threads? ...although, Parallel::ForkManager > docs say that it can also work with fork.
I think you have that the wrong way round. Fork is implemented on win32 using threads, which would explain the thread references in the error message. I could be wrong, but I can't imagine why using the same database connection in parallel processes/threads would be a good idea, even if it were possible. Could be very messy. Also, see the 'perldoc DBI' section on threads and thread safety. > > Thanks. > > Octavian > > _______________________________________________ > ActivePerl mailing list > [email protected] > To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs Please consider the environment before printing this e-mail. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient or have received this e-mail in error, please advise the sender immediately by reply e-mail and delete this message and any attachments without retaining a copy. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden. _______________________________________________ ActivePerl mailing list [email protected] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
