[Beowulf] NFS over RDMA performance confusion

Vincent Diepeveen diep at xs4all.nl
Thu Sep 13 07:45:18 PDT 2012


On Sep 13, 2012, at 4:24 PM, Prentice Bisbal wrote:

> On 09/13/2012 09:23 AM, Vincent Diepeveen wrote:
>> On Sep 13, 2012, at 3:02 PM, Ellis H. Wilson III wrote:
>>
>>> On 09/13/2012 08:52 AM, Vincent Diepeveen wrote:
>>>> the actual data goes through RDMA here and maybe through TCP using
>>>> mysql.
>>> I'm almost certain this isn't going through mysql, or this is an
>>> incredibly strange version of IOzone.  This is just "mimicking"
>>> database
>>> accesses by doing smallish record direct I/O.
>>>
>>> Am I correct in my thinking here?
>> from email some time ago posted on this list:
>>
>> " Oracle and
>> Nexenta are both sending me ZFS based boxes to test and I hope to
>> compare
>> the performance and stability of these with the Netapp (formally lsi
>> engenio) E540"
>>
>> He got one or more machines from Oracle and the dude is benchmarking
>> MySQL...
>>
> Uhhh... Oracle owns MySQL.
>

As they wanted it to die of course and sell more Oracle databases.

At the moment Oracle took over MySQL quite some years ago, i directly  
switched to a different database and
threw away MySQL.

The lastest incarnation of PostgresSQL is popular now as replacement  
of MySQL.

For serious database work - there is only Oracle of course.
No one should be interested in MySQL anymore by 2012.

Note MySQL never was even remotely serious as a database. As soon as  
you had its database go get out of RAM,
it became serious slow.

I bet back then that was ok for some website driven queries in your  
article store...

> --
> Prentice
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