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Showing entries 1 to 10 of 34281 10 Older Entries
Comparing LevelDB and RocksDB, take 2
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I previously explained problems to avoid when comparing RocksDB and LevelDB. I am back with more details and results because someone is wrong on the Internet. The purpose for the test was to determine whether we created any regressions after reading a comparison published by someone else where RocksDB had some problems. Note that the LevelDB and RocksDB projects have different goals. I expect RocksDB to be faster, but that comes at a cost in code and configuration complexity. I am also reluctant to …

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Percona Acquires Tokutek : My Thoughts #1 : TokuDB
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Two weeks ago Percona announced it's acquisition of Tokutek (April 14, 2015). The analyst coverage was a bit fluffy for my liking, but I decided to give it some time and see if anything "meaty" would come along, and ... it hasn't. The sheer number of tweets on Twitter was impressive, which makes me hopeful that the acquisition raised awareness to the Tokutek technologies and that the Tokutek products have a found a good home

I've been thinking a lot about the future of the Tokutek technologies over these same two weeks and want to share them …

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Using GDB, investigating segmentation fault in MySQL
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In previous article, we have covered some errors and issues with using MySQL in “disk full” environment. Where there was no space left on device.(See here: Testing Disk Full Conditions)
Today’s scenario is -> Starting MySQL with GTID/binary log enabled, in 0 space left Linux(CentOS 6.5) environment.

If you hit a bug or problem, general rule for helping community to fix it is to provide as much information as possible. Especially useful is to give gdb output from coredump. To get coredump you can read this wonderful article …


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WebScaleSQL builds available for Debian 8 and Ubuntu 15.04
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After many months of heavy development and testing, Debian 8 (Jesse) and Ubuntu 15.04 (Vivid Vervet) were released recently.

For those who already upgraded their systems and/or plan do do it in close future, we prepared builds of WebScaleSQL :-)

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Log Buffer #420: A Carnival of the Vanities for DBAs
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This Log Buffer Editions brings few of the very insightful blog posts from the arena of Oracle, SQL Server and MySQL.

Oracle:

  • How to Increase Performance With Business Events in Fusion Applications
  • Advanced Oracle Troubleshooting Guide – Part 12: control file parallel reads causing enq: SQ – …
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Indexing 101: Optimizing MySQL queries on a single table
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I have recently seen several cases when performance for MySQL queries on a single table was terrible. The reason was simple: the wrong indexes were added and so the execution plan was poor. Here are guidelines to help you optimize various kinds of single-table queries.

Disclaimer: I will be presenting general guidelines and I do not intend to cover all scenarios. I am pretty confident that you can find examples where what I am writing does not work, but I am also confident that it will help you most of the time. Also I will not discuss features you can find in MySQL 5.6+ like Index Condition Pushdown to keep things simple. …

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Slides from the MySQL Session at Great Indian developer Summit 2015
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Wanted to send a pointer to the slides from my session at #GIDS 2015.

Will followup with an impressions blog soon.

My sql5.7 whatsnew_presentedatgids2015 from Sanjay Manwani

Percona Live Presentation: Encrypting Data in MySQL with Go
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Our CEO and founder, Baron Schwartz, spoke on encrypting data in MySQL with Go at Percona Live a couple weeks ago. Below are the slides.

If you are interested in learning more about the integration between MySQL and Go, you can register for this webinar.

Deep Dive Into How to Monitor Galera Cluster for MySQL, MariaDB & Percona XtraDB - Webinar Replay
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Thanks to everyone who attended and participated in this week’s webinar on 'How to Monitor Galera Cluster'. If you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

Our speaker this time was Krzysztof Książek, Senior Support Engineer, Severalnines.

Watch the replay

Deep Dive Into How To Monitor MySQL or MariaDB Galera Cluster …

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MySQL Workbench 6.3.3 GA has been released
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The MySQL developer tools team is pleased to announce 6.3.3 as our GA release for the MySQL Workbench 6.3

For the full list of changes in this revision, visit

http://dev.mysql.com/doc/relnotes/workbench/en/changes-6-3.html

For detailed information about the new features, see What’s
New in MySQL Workbench 6.3
http://dev.mysql.com/doc/workbench/en/wb-what-is-new-63.html

For discussion, join the MySQL …



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Showing entries 1 to 10 of 34281 10 Older Entries

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