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How many partitions can you have ?

 | December 5, 2009 |  Posted In: Benchmarks, Insight for DBAs, MySQL

I had an interesting case recently. The customer dealing with large MySQL data warehouse had the table which was had data merged into it with INSERT ON DUPLICATE KEY UPDATE statements. The performance was extremely slow. I turned out it is caused by hundreds of daily partitions created for this table. What is the most […]

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Effect of adaptive_flushing

 | December 4, 2009 |  Posted In: Benchmarks, MySQL

I recently had the chance to witness the effects of innodb_adaptive_flushing on the performance of InnoDB Plugin 1.0.5 in the wild, which Yasufumi wrote about previously here and here. The server in question was Solaris 10 with 8 disk RAID10 and 2 32GB SSDs used for ZIL and L2ARC, 72G RAM and 40G buffer pool. […]

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Sphinx 0.9.9 is finally here.

 | December 4, 2009 |  Posted In: Insight for Developers

Sphinx 0.9.9 is finally released to General Availability. The previous version 0.9.9-rc2 was released back in April so there was quite a gap. This release fixes about 40 bugs which are mostly rare or insignificant. Fixing bugs in 0.9.9 was smaller portion of work done in Sphinx during last half a year – 0.9.9-rc2 was […]

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