Question : I have set up a mongo cluster as follows: 3 shards, one per global region APAC/EMEA/AMER (in different […]
Category: MongoDB
Disk space problem regarding MongoDB [closed]
Question : Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this […]
Overview of how MongoDB uses its various threads
Question : On one instance I have MongoDB using ~85 threads. In lieu of having time to investigate directly, I […]
how mongo db does locking for updates/inserts?
Question : I have many data for each user that with write heavy and many for each separate users that […]
MongoDB Not Using All Available RAM
Question : I have something around 200 GB worth data stored in a mongo cluster. The physical memory on one […]
what’s extsort.* (8 – 11 MB) in MongoDB dbpath? Directory _tmp
Question : I never saw this in my dbpath and didn’t found any explanation with a search engine. We run […]
MongoDB deployment best practices
Question : I had a few questions around deployment best practices and how folks are using mongodb today. Feel free […]
Socket recv() timeout on secondary nodes
Question : We started using MongoDB pretty recently. We are on version 2.6.3. We have a replica set of 4 […]
Insert on duplicate key update using MongoDB
Question : Can somebody tell me how I should build MongoDB “updateOne” query to get analog of the following SQL […]
Speeding up MongoBD query { $ne: [] }
Question : I’m currently doing a MongoDB aggregation but then have a query looking for all documents where a certain […]