maria-discuss team mailing list archive

[Reindl Harald <h.reindl@xxxxxxxxxxxxx>]

Am 07.02.2018 um 11:39 schrieb jocelyn fournier:
> > Le 7 févr. 2018 à 11:34, Reindl Harald <h.reindl@xxxxxxxxxxxxx> a écrit :
> >
> > Am 07.02.2018 um 11:28 schrieb Sergey Vojtovich:
> > > I'm afraid query cache doesn't scale well. Try turning it off
> >
> > well, the question is why on a read-bound workload because there is no valid reason that it locks reads for other threads
> >
> > and no remove query-cache like MySQL 8.0 is no solution because when you have a few terrible optimized queries on your server which takes seconds to run query-cache will save your ass while you can (and we did) write known fast queries with "select SQL_NO_CACHE" to get the locking relaxed
>
> You could also take a look at software like https://www.heimdalldata.com which tries to replace the query cache (and much more BTW)

it's not very helpful to throw more and more layers and software on 
problems trying to hide instead solve them

each layer brings inevitable it's own problems to the mix and if it's 
only added latency for non-cacheable queries and complexer dependencies 
for long-term maintainance of oyur whole application stack
__

P.S.: can you fix your mail-client so that it knows about how to handle 
mailing-lists properly instead reply-all?

you break *my* reply-list button and make reply go directly to you and 
leave the list out besides that you off-list copy was fatser, the 
list-message silently got killed by the duplicate filter and my reply 
now starts a new thread