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10 Newer Entries Showing entries 91 to 100 of 184 10 Older Entries

Displaying posts with tag: memcached (reset)

Memcached Functions for MySQL and Moxi: a great combination
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Working at Northscale has been a lot of great fun lately! I have finally figured out how to get puppet to set up a stock Amazon instance with everything we need and have been impressed with how you can automate system setup with puppet. I remember when I worked at Grazr how much of a hassle it was for us to have to rebuild systems. Something like Puppet would have been a godsend.

Today I though I would post about how cool moxi is. If you don't know, moxi is a memcached proxy ( which allows you to move any complexity of having to set up the list of memcached servers you are …

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SQL Analysis with MySQL Proxy – Part 2
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As I outlined in Part 1 MySQL Proxy can be one tool for performing SQL analysis. The impact with any monitoring is the art of monitoring will affect the results, in this case the performance. I don’t recommend enabling this level of detailed monitoring in production, these techniques are designed for development, testing, and possibly stress testing.

This leads to the question, how do I monitor SQL in production? The simple answer to this question is, Sampling. Take a representative sample of your production system. The …

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Short Videos from OSCON
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New Job announcment!
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Some news about a change in my career path that I've been meaning to announce. I now have moved on from Lycos and now work for NorthScale Inc!

In parting Lycos, I'd like to thank them for the great challenges I had while there. I designed and developed, along with my team members in the web publishing and support from the OPs group, PHP offerings for Tripod users, a long-awaited feature that premium users can use to install numerous PHP applications. Also, with that was a great interface I developed for installing applications. It required some work on the applications themselves to make them as easy to install as possible (similar to APS). The other task while there was …

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capttofu @ 2009-07-31T12:23:00
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I'm pleased to announce the release of the Memcached Functions for MySQL, version 1.0.

This release contains several changes, per the ChangeLog:

1.0 Thursday, July 30, 2009 12:00:00 EST 2009
* Fixed issue of setting NULLs with user-defined variables (Thanks to
Jean-Jacques Moortgat at aol dot com !)
* Fixed issue of obtaining a NULL value FROM memcached
* All set functions now return 0 (failure) or 1 (success)
* Other cleanups
* More tests

Importantly, there was an issue that I blogged about several days ago where in the UDF API, if you pass a user-defined variable that is set to NULL to memc_set(), …

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WebStack 1.5 - Your (L)AMP Stack
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Sun's LAMP support is assembled from two pieces: the L is from our Linux/GNU Support (see SunSolve entry), while the AMP comes from the GlassFish WebStack, which, in its latest incarnation includes Apache HTTP Server, lighttpd, memcached, MySQL, …

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451 CAOS Links 2009.07.28
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Intuit launches open source project. SFLC on Microsoft GPL violation accusations.

Follow 451 CAOS Links live @caostheory on Twitter and
“Tracking the open source news wires, so you don’t have to.”

# Intuit launched open source projects and community to develop apps based on its Intuit Partner Platform, while Savio Rodrigues declared Intuit’s open source play is all business.

# SFLC’s …

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memcached Functions for MySQL now on launchpad
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Hi all,

This is a quick post to let you know that the memcached functions for MySQL have been moved to Launchpad. The project page is:

I think this will help to get the project more exposure, as well as making it easier for people to contribute to the project. I've found Launchpad to be quite useful for managing projects and so decided to move the UDFs there.

I'm working on getting out another version soon. I just fixed a bug the deals with user-defined variables that were set to NULL causing the UDFs to crash the server. It was a bug in …

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Analyze and optimize memcached usage with Maatkit
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Ryan posted an article on the MySQL Performance Blog about how to use mk-query-digest to analyze and understand your memcached usage with the same techniques you use for MySQL query analysis. This is an idea that came to me during the 2009 MySQL Conference, while talking to our friends from Schooner, who sell a memcached appliance.

It suddenly struck me that the science of memcached performance is basically nonexistent, from the standpoint of developers and …

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Maatkit Now Supports Memcached
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Have you ever wondered how optimized your Memcached installation is? There is a common misconception that one doesn't have to think too deeply about Memcached performance, but that is not true. If your setup is inefficient, you could:

  • Burn Memory
  • Waste Network Round-Trips
  • Store Keys That Never Get Retrieved
  • Have a Low Cache Hit Ratio (i.e. query MySQL too much)
  • Suffer a fate too horrible to contemplate.

Percona does a lot of consulting around Memcached, so we try to take a quantitative, …

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10 Newer Entries Showing entries 91 to 100 of 184 10 Older Entries

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