maria-discuss team mailing list archive

[MARK CALLAGHAN <mdcallag@xxxxxxxxx>]

This discussion is much more interesting than the one on the quiet MySQL
lists. I assume you need to worry about the top half caching dictionary
information about indexes & tables.

On Wed, Jul 20, 2016 at 12:50 PM, Jonathan Ellithorpe <jde@xxxxxxxxxxxxxxx>
wrote:

> I see... so the MariaDB top-half (by "top-half" I mean everything that
> sits above the storage engine) doesn't do nasty things like caching? If it
> did, then writes at other MariaDB sites wouldn't show up in reads performed
> at the site caching the data.
>
> If the MariaDB top-half does nothing more than essentially translate user
> operations / queries into calls on the SE, then in theory nothing special
> must be done to deploy MariaDB at multiple sites accessing a shared storage
> engine.
>
> Jonathan
>
> On Tue, Jul 19, 2016 at 10:20 PM Daniel Black <daniel.black@xxxxxxxxxxx>
> wrote:
>
>>
>>
>>
>>
>> On 20/07/16 14:31, Jonathan Ellithorpe wrote:
>> > Follow-up: I see in the blog pointed to by Daniel mentioned an SE for
>> > Cassandra.... so I take it the answer is yes? Does anyone have
>> > experience with this / know if anything "extra" must be done to make
>> > that work?
>>
>> It falls to the responsibility of the storage engine to ensure that the
>> ACID guarantees are implemented.
>>
>> > Jonathan
>> >
>> > On Tue, Jul 19, 2016 at 9:23 PM Jonathan Ellithorpe <
>> jde@xxxxxxxxxxxxxxx
>> > <mailto:jde@xxxxxxxxxxxxxxx>> wrote:
>> >
>> >     Thanks for the references! That helps a lot
>> >
>> >     One other question I have is: can MariaDB work in a distributed
>> >     fashion? To be more clear, the storage backend I'm developing is
>> >     distributed, like Cassandra, and I would like to deploy many MariaDB
>> >     instances that all access the same storage cluster. Can this be
>> done?
>>
>>
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-- 
Mark Callaghan
mdcallag@xxxxxxxxx