Tag Archives: Mongodb

MongoDB: Lagged Replica with Replica Sets

Posted on August 24, 2010 by kgorman

In an enterprise database architecture, it’s very common to create a standby or replica database with a ‘lag’ in it’s state relative to the primary. Operations applied to the primary are not seen on the replica for some amount of … Continue reading →

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Why Not Auto Increment in MongoDB

Posted on August 4, 2010 by kgorman

I came across this blog post with a nice pattern for auto-increment in MongoDB. It’s a great post, but there is something to think about beyond how to logically perform the operation; performance. The idea presented in the blog is … Continue reading →

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mongo_graph: a rrdtool graphing utility for MongoDB

Posted on July 23, 2010 by kgorman

I just uploaded a little utility that pulls performance data from MongoDB and loads it into rrdtool for trending and analysis. Sure there are options like cacti out there, but this is just a simple raw utility vs something designed … Continue reading →

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Data clustering in MongoDB using embedded docs

Posted on June 25, 2010 by kgorman

I wrote a while ago about how to cluster data to save cash. This post was geared towards relational stores. But in reality, the technique is applicable to any block store on disk. To recap, the premise is simple. When … Continue reading →

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mongostat

Posted on June 21, 2010 by kgorman

The MongoDB command line performance monitoring utility named mongostat is now (well since 1.3.3) part of the core distribution of Mongodb. The python version hosted on my site is now deprecated in lieu of the C++ version in the distro.

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MongoSF; Video’s up

Posted on May 11, 2010 by kgorman

The videos from MongoSF are starting to get posted now on the 10gen site. The presentations are there too. Here is my talk:

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MongoSF Slides

Posted on May 3, 2010 by kgorman

I had a great time at the MongoSF Conference on Friday. There were a ton of great presentations, and lots and lots of excitement. A big thanks to 10gen for inviting me to speak. I had a great time and … Continue reading →

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mongodb 1.3.3 (devel) with mongostat

Posted on March 2, 2010 by kgorman

MongoDB 1.3.3 (devel) was released today. My tool called mongostat has been incorporated into mongo1.3.3 and changed from python to C++. So further development will come inside the mongodb distribution itself. Also of note is new slave lag for replication. … Continue reading →

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mongostat 0.2b

Posted on February 9, 2010 by kgorman

I have been playing quite a bit with MongoDB lately. MongoDB is a nosql type database. It’s different than a simple k/v store however. It allows sorting, secondary indexes and such. It’s format is BSON a binary representation of JSON … Continue reading →

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