On 02/23/2017 05:22 PM, Reindl Harald wrote:
Am 23.02.2017 um 23:03 schrieb mike bayer:
On 02/23/2017 03:37 PM, Reindl Harald wrote:
normally you just update and run "mysql_upgrade -u root -p"
mysql/mariadb is not postgres
some of us could benefit from official language that we could give to
customers
how do you imagine "official"?
in any sense "official" in teh software world means "you are going from
version x tro version y with *excatly* options z" - well, fine, but taht
don't match more than a few people of the real world anyways
to be honest: such questions are completly useless - if you don#t have a
machine where you can test your data with your configuration 1:1 step
back and get one - that's it and will always be independent of operating
system, software, configuration and data
and even if you have - be prepared that something unexpected happens on
the live machine which did not show on the clone - be prepeared to deal
with it - it's that simple
I work for well known vendor where thousands of customers will at some
point be getting 10.1 installed where they previously had 5.6 as part of
a larger installation. All other aspects of the OS and configuration
remain identical. We need to answer the question whether or not
customers are to be told to rebuild a new data directory from scratch
and run a full mysqldump, potentially taking many hours, or if the
installer can just run mysql_upgrade, taking a few seconds. Asking all
our customers to try the whole thing out on a copy of their production
machine and to debug their own installation is not an option.
If a piece of software shipped by a software vendor works or not with
the datafile from a given version of their software is an answerable
question. The mariadb documentation encourages upgrades from
5.5->10.0 for example, and does not suggest that the data directory has
to be fully dumped and restored. That's what "official" means in this
context.
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