Am 21.06.2012 22:52, schrieb Michal Hlavinka: > On 06/20/2012 02:37 PM, Reindl Harald wrote: >> >> >> Am 20.06.2012 14:32, schrieb Björn Persson: >>> Michal Hlavinka wrote: >>>> Correct approach would be to save state before installation of new >>>> version starts and start dovecot (if flag is set) after old version is >>>> removed - that would mean %postun script. This does not seem to work on >>>> reinstall (the same version is installed) - %postun script is not executed. >>> >>> Please also consider what happens when the new version of Dovecot requires a >>> new version of some library. RPM will ensure that both packages are updated in >>> the same transaction, but if I understand correctly it's not until %posttrans >>> that you can be sure that the new library is in place. > > %postun is sufficient, but it's not executed on package reinstall > >> >> one reason more why the cuurent behavior re-starting services >> on updates is simply wrong: > > You complained that service is restarted during update. Well, in this case, restart is not sufficient. We even have > to be sure, the service is not running when there are both old and new files in place. Not restarting the service > would be "simply wrong" is is NOT simpy wrong * i am the admin * i decide the time when a service is restarted * you have no clue what implication a restart of whatever service has in my environment * so you should give me a way to disable the auto-restarts globally currently i have to rebuild every single server-package to remove this can you imagine the side-efefcts restarting mysqld while update in a environment dbmail postfix, dovecot and depending services heavily using mysql? you can NOT i can - it is a disaster i am the onbe who is controlling the machine and konwing each configuartion and service-dependency on my machine because i have configured the whole stuff and i know what i am doing - update mysqld without restart the service is painless, AFTER the update i start a script stopping all the services in the 100% right order for MY setup and start them again this means a downtime around 10 seconds wihtout a single error in /var/log/maillog - dong the restart blindly on update means a LOT of errors and warnings in maillog so please do not tell me what is right or wrong in MY setup give me the option to decide GLOBALLY withut rebuild packages what is the best for MY environment!
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