On Tue, Mar 17, 2009 at 5:29 AM, Mark Leith <[email protected]> wrote: > > On 16 Mar 2009, at 21:08, Jeremy Zawodny wrote: > >> On Mon, Mar 16, 2009 at 1:37 PM, MARK CALLAGHAN <[email protected]> >> wrote: >> On Mon, Mar 16, 2009 at 1:24 PM, John David Duncan <[email protected]> wrote: >> > >> > >> > Also, there are timeout-based problems, and if all 6 (or 8, or whatever) >> > running threads stall, then the whole server is hung. Folks who work at >> > Sun >> > can look at MySQL support issue #25334 and see some problems that might >> > also >> > pop up in conceivable libevent-based implementations... >> >> JD, >> >> Am I correct in summarizing this by stating that MySQL has a fast >> version of this in code I can't review and problems with it are >> described in a problem report I cannot read? >> >> Yay for open source, eh? > > > So we are not allowed paying customers, with custom NRE work, if we are open > source? :)
That isn't what I wrote. You are welcome to do as much NRE work as you want. I wrote that not much is added to a discussion on fixing the current problems in the pool-of-threads code by stating that Sun has an implementation we cannot view and a bug report we cannot read. But even your NRE customers benefit from open source. Someone had NRE work done for the HEAP engine and eventually published that code. We found several bugs in the change and helped to get them fixed. > > The current 5.0 custom branch was/is based on Solaris event ports only > (http://developers.sun.com/solaris/articles/event_completion.html), so > wasn't really applicable for the main stream server (because it only > supported one platform). That's why we looked at doing it with libevent in > 6.0 - so the NRE work helped to drive the new feature in the later release > which is more applicable to everybody.. > > Yes, it has some issues. Yes, Support (and others) are pushing for fixes to > much of that as well - 6.0 is still Alpha, so hopefully we should see some > good headway before GA. > > Yay for closed source NRE work pushing Open Source development too! ;) > > -- > Mark Leith > MySQL Regional Support Manager, Americas > Sun Microsystems, Inc., http://www.sun.com/mysql/ > > > > > -- Mark Callaghan [email protected] _______________________________________________ Mailing list: https://launchpad.net/~drizzle-discuss Post to : [email protected] Unsubscribe : https://launchpad.net/~drizzle-discuss More help : https://help.launchpad.net/ListHelp
