2
votes
1answer
51 views

Running MongoDB and SQL Server on the same host- memory pressure

We have a new application that is making use of both traditional MS SQL and MongoDB for data storage. We're running both instances on the same Windows 2008R2 x64 machine, with 64GB RAM. There have ...
0
votes
1answer
47 views

mongodb memory leak or big collection?

mongo 2.4.6 x64 RAM 24 GB With normal work memory consume around 10GB. After that we started read data from db (create archive raw data) memory consuming up to 90% of all memory trough 5day. And go ...
0
votes
0answers
56 views

MongoDB RAM requirements doubt

I have a data file with 100 million documents. The number of documents is expected to always remain between 100 million and 200 million for atleast a year. I have 15 GB Ram. Currently the update ...
5
votes
1answer
987 views

MongoDB Not Using All Available RAM

I have something around 200 GB worth data stored in a mongo cluster. The physical memory on one of the instances which runs mongo is 8GB. Nothing else of any consequence runs on this instance. As near ...
2
votes
1answer
1k views

MongoDB: What does '[DataFileSync] flushing mmaps took … ms for … files' mean?

I am building an index in MongoDB for a large collections (~300GB) and the db terminal window keeps printing: [DataFileSync] flushing mmaps took 10920ms for 151 files The time that it takes to ...