Monthly Archives - June 2015

Percona XtraDB Cluster 5.6.24-25.11 is now available

Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on June 3rd 2015. Binaries are available from downloads area or from our software repositories.
Based on Percona Server 5.6.24-72.2 including all the bug fixes in it, Galera Replicator 3.11, and on Codership wsrep API 25.11, Percona XtraDB Cluster 5.6.24-25.11 is now […]

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Optimizing Percona XtraDB Cluster for write hotspots

Some applications have a heavy write workload on a few records – for instance when incrementing a global counter: this is called a write hotspot. Because you cannot update the same row simultaneously from multiple threads, this can lead to performance degradation. When using Percona XtraDB Cluster (PXC), some users try to solve this […]

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innodb_buffer_pool_size – Is 80% of RAM the right amount?

innodb_buffer_pool_size

It seems these days if anyone knows anything about tuning InnoDB, it’s that you MUST tune your innodb_buffer_pool_size to 80% of your physical memory. This is such prolific tuning advice, it seems ingrained in many a DBA’s minds.  The MySQL manual to this day refers to this rule, so who can blame the DBA? […]

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Percona TokuMXse 3.0.3-1.0-rc6 is now available

Percona is glad to announce the release of Percona TokuMXse 3.0.3-1.0rc6 on June 1st 2015. TokuMXse is a TokuMX storage engine for MongoDB 3.0.3. Downloads are available from our download site here. Packages for this Release Candidate release, will be available in our Ubuntu Trusty, Utopic, Vivid, and Debian Jessie apt testing and […]

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New PERFORMANCE_SCHEMA defaults in MySQL 5.7.7

I thought it was worth a moment to reiterate on the new Performance Schema related defaults that MySQL 5.7.7 brings to the table, for various reasons.
For one, most of you might have noticed that profiling was marked as deprecated in MySQL 5.6.7. So it is expected that you invest into learning more about Performance […]

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