April 2009
4 posts
Mongo DB Memory Usage
Mongo uses memory mapped files to access data, which results in large numbers being displayed in tools like top for the mongod process. This is normal when using memory-mapped files. Basically, the amount of mapped datafile is shown in the virtual size parameter, and resident bytes shows how much data is being cached in RAM. The larger your data files, the higher the vmsize of the mongod...
Migrating to Spider Monkey
We’ve decided to switch from v8 and java to Spider Monkey for JavaScript.
A couple of main reasons
Full static binaries - no java dependancy
Easier to build since fewer dependencies
Spider Monkey 1.8.1 will be very fast (that includes trace monkey)
Hopefully we’ll be able to relase it in a couple of weeks.
Some New Docs on Atomic Operations
http://www.mongodb.org/display/DOCS/Atomic+Operations
mongodb jira →
We’ve opened up a jira for the mongodb community. We’ll use it for all of our bug tracking, and anyone should feel free to submit bugs directly and see what’s going on.
