Sean Davis
sdavis at sherlock.nci.nih.gov
Thu Sep 28 07:50:43 EDT 2006
Richard Lewis wrote: > On Wednesday 27 September 2006 14:55, Sean Davis wrote: > >> On Wednesday 27 September 2006 09:16, Fredrik Sandin wrote: >> >>> I asked the same question some time ago: >>> http://modpython.org/pipermail/mod_python/2006-August/021924.html >>> Graham Dumpleton suggested to use XML-RPC. >>> >>> As far as I have understood mod_python, or actually Apache, was >>> not designed to allow for object persistency. >>> >> Is this actually true (at least the Apache part)? Under mod_perl (I'm a >> mod_python total newbie), object persistence can be accomplished in several >> ways including global variables that remain in shared memory (but this is >> only within a single child), a database, in an in-memory or on-disk cache, >> or in a session (just an interface to a cache or database). Depends on >> your definition, but Apache, it seems to me, is absolutely suited to allow >> object persistence. >> >> > Persistance is all right: you can use global variables as you suggested. > > The problem comes at tidying up time. Apache provides no method of performing > operations when the server shuts down. This is especially relevant with > things like open database connections Richard, Thanks for the clarification. Under mod_perl, there is Apache::DBI that overrides the connect() method of the DBI module to allow reuse of connections (maintaining a persistent connection). When the server process dies, the DESTROY() method is called and the connections are cleaned up. Would this be treated differently under mod_python for some reason, if a database connection object had a destroy() method that included a disconnect? I have to admit that I don't understand many of the intricacies, but it seems that if it can be done in perl under mod_perl, there is likely a way to do it under python and mod_python. Sean
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