[kdepim-users] Fwd: akonadi 4 & 5 not coinstallable !

[Pablo Sanchez]

[ Comments below, in-line ]


On 12/25/2015 12:09 PM, Kevin Krammer wrote:
> On Thursday, 2015-11-26, 22:07:50, Daniel Vrátil wrote:
>
>> We realize there are still some KDE4-based applications that need Akonadi
>> and their port to KF5 is still underway (or not even started) and we
>> understand that it may cause problems to some users. However the major
>> changes that we did allowed us to move forward in a way that would not be
>> otherwise possible. The performance gain and memory usage optimizations
>> alone were absolutely worth it, not mentioning the improved maintainability
>> and robustness of the entire thing. To me this is a price worth paying.....
>
> I am sad to read that Akonadi is no longer considered a user's PIM hub and is
> now just an implementation detail of KDEPIM.
>

When I looked at how Akonadi was accessing its MySQL database, I saw the 
fundamental problem:  1000's of unnecessary SQL calls.  As all the data 
was in cache, this manifested itself as high CPU utilization.  Rather 
than fixing the root-cause, some sort of caching mechanism was created 
to partially address the issue.  I don't recall the details but the 
thinking was Akonadi was going away so no point in investing any more 
energy to resolving root-issues.

It may be reasonable to move away from a MySQL (DBMS) backend as it 
makes it a bit more difficult for the field to troubleshoot issues.

Cheers,

--
Pablo Sanchez - Blueoak Database Engineering, Inc
Ph:    819.459.1926         Blog:  http://pablo-blog.blueoakdb.com
iNum:  883.5100.0990.1054

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