Question : Where to find mongoreplay tool in mongodb 4.0 community version for windows? It is not in the same […]
Tag: mongodb-4.0
Mongodb consumes too much RAM during replica resync
Question : I have a mongodb cluster with 2 data nodes and 1 arbiter. I use mongodb 4.0.7 for all […]
MongoDB Reconnects to Secondaries Too Fast
Question : How can MongoDB 4.0.12 be configured to SLOW its rate of re-connecting to its replica members when they […]
MongoDB stuck in startup2 state
Question : I have a Mongo replica set (MongoDB server version: 4.0.3) with primiry, secondary and arbiter. Size of database […]
Do I need to split a 1.5 billion document database into several in a standalone MongoDB?
Question : There will be total 1.5 billion documents in nearly 100 collections in one database. Need I to separate […]
Trouble designing mongodb 1-many collection/query that could grow without bounds
Question : So in an application I’m currently working on, I’m having an issue designing a collection. I can’t give […]
In MongoDB ReplicaSet, does a priority 0 node (hidden, delayed, etc) have to have the same Oplog size as the nodes that can become primary?
Question : I understand the Oplog collection in MongoDB replica set. A bigger Oplog means a bigger recovery window when […]
MongoDB Indexing – What happens if I don’t index all necessary fields?
Question : Let’s say I have a collection with 20 fields and a query that uses 5 of them, to […]
join two collections with group by and sum in Mongodb
Question : i have this two collection and i want to join, after this I want to sum the value […]
Is MongoDB index creation single threaded?
Question : I have rather big dataset – 2TB of text data, 18.000 millions of lines. Each document is same: […]