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Showing entries 1 to 3

Displaying posts with tag: parallel MySQL (reset)

Join Executor for MySQL Cluster
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Jonas in the Cluster team reported on his work on executing
joins in the NDB kernel for MySQL Cluster here.

This is a very interesting work we have in progress at MySQL.
We are working on an extension of the Storage Engine API
where the MySQL Server will present an Abstract Query Tree
to the Storage Engine. The Storage Engine can then decide to
execute the query on his own or decide that the MySQL Server
should execute it in the classic manner. In the first prototype
the optimisation will be done as usual and only after the …

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Impressive numbers of Next Gen MySQL Cluster
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I had a very interesting conversation on the phone with Jonas
Oreland today (he also blogged about it on his blog at

There is a lot of interesting features coming up in MySQL Cluster
version 6.4. Online Add Node is one of those, which can be done
without any downtime and even with almost no additional memory
needed other than the memory in the new machines added into the
cluster. This is a feature I started thinking almost 10 years ago
so it's nice to see the fourth version of the …

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CACHE INDEX per partition for MyISAM
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The newest development in the partitioning code
is WL#4571.

This new feature makes it possible to tie a
partition using MyISAM to a specific cache index.
The syntax for how to do is available in the
above worklog entry.

We found this feature to be useful for enabling
higher performance of parallel ALTER TABLE
(WL#2550). When adding
a primary key to a MyISAM table the key cache in
MyISAM limited scalability of …

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Showing entries 1 to 3

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