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Visualization tools for pt-query-digest tables

 | August 31, 2012 |  Posted In: Insight for DBAs, MySQL

When you process MySQL slow query logs using pt-query-digest you can store samples of each query into query_review table and historical values for review trend analysis into query_review_history table. But it could be difficult to easily browse those tables without a good GUI tool. For the visual browsing of tables created by pt-query-digest you may […]

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268x Query Performance Increase for MongoDB with Fractal Tree Indexes, SAY WHAT?

 | August 30, 2012 |  Posted In: Tokutek, TokuView

Last week I wrote about our 10x insertion performance increase with MongoDB. We’ve continued our experimental integration of Fractal Tree® Indexes into MongoDB, adding support for clustered indexes.  A clustered index stores all non-index fields as the “value” portion of the index, as opposed to a standard MongoDB index that stores a pointer to the […]

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Month of August in Percona Community Forums

 | August 30, 2012 |  Posted In: MySQL

This month was a busy month in Percona Community Forums with a lot of great questions asked and most answered. It is great to see both independent community and Percona employees participating in discussion. Thank you. Here are some things you would learn from following Percona Forums in August: How to get PAM authentication plugin […]

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Hidden columns of query_review_history table

 | August 28, 2012 |  Posted In: Insight for DBAs, MySQL

You can use pt-query-digest to process a MySQL slow query log and store historical values for review trend analysis into query_review_history table. According to its official documentation you can populate many columns in that table but there are other important ones such as ‘user’, ‘host’, ‘db’ which are not included by default. I will explain […]

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10x Insertion Performance Increase for MongoDB with Fractal Tree Indexes

 | August 23, 2012 |  Posted In: Tokutek, TokuView

The challenge of handling massive data processing workloads has spawned many new innovations and techniques in the database world, from indexing innovations like our Fractal Tree® technology to a myriad of “NoSQL” solutions (here is our Chief Scientist’s perspective). Among the most popular and widely adopted NoSQL solutions is MongoDB and we became curious if […]

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