[BangPypers] Terrible choices: MySQL. What is the way ahead?
anandology at gmail.com
Wed Dec 31 03:02:34 CET 2014
On Wed, Dec 31, 2014 at 1:51 AM, kracekumar ramaraju <
kracethekingmaker at gmail.com> wrote:
> On Dec 31, 2014 1:37 AM, "Noufal Ibrahim KV" <noufal at nibrahim.net.in>
> > On Tue, Dec 30 2014, Gora Mohanty wrote:
> > > On 30 December 2014 at 19:32, Noufal Ibrahim KV <
> noufal at nibrahim.net.in>
> > > [...]
> > >> I can't offer anything normative but in my experience (and it's a
> > >> dated since I don't use mySQL for anything these days), mySQL is a
> > >> disaster waiting to hit you.
> > >
> > > [...]
> > >
> > > Personally, I agree with this, but such arguments often degenerate
> > > into flamewars. IMHO, it comes down to a matter of knowing your tools,
> > > and what use-cases they can meet. Sometimes, mysql can be what one
> > > needs.
> > [...]
> > They're both RDBMs. Unless you have legacy stuff to support or are tied
> > down to mySQL for any non tech. reason, I can't really think of how it
> > would be what one needs.
> For example, MySQL MyISAM is fast for read replica. Again MyISAM is
> terrible choice for write.
> Migrating from MySQL to postgres is really technical debt. Said that
> postgres quirks very little and ahead of mysql in features. Lot of
> companies cant migrate to postgres because incoming data is large.
> Companies choose MySQL knowing lot of consulting companies are around like
> percona, example quora.
Whoever is using it probably not using it because it is a good database,
probably something else. For example, friendfeed used it as a nosql store.
I've been through horror of mysql. For example, adding a new index locks
the entire database. Not only that, since it stores entire database in a
single file, it rewrites the entire database in to a new file. If you don't
have 50% disk free, you are gone.
What to add a new column? plan for downtime again.
The big companies using mysql would have found work-arounds for these
issues. I don't think individual developers can afford that.
Internet Archive (place where I work) was down for 8 hours because we
wanted to add couple of columns and build index on them. Fortunately, we
have switched to Postgres and both these operations can now be done without
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