Question : We have recently upgraded our 3 member replica set from 3.0 to 3.2.9. Since the upgrade, we are […]
Category: MongoDB
what is “planSummary: IDHACK”?
Question : This Query scans only one document and returns only one document. But this is very slow: 2017-05-22T07:13:24.548+0000 I […]
Is there any way to disable MongoDB’s cache?
Question : I’m not getting recent data when querying, and I believe it has to do with cache. Probably, MongoDB’s […]
Indexing a date field on MongoDB – best practice
Question : Hi We would like to index a date field on a potentially large collection. Is indexing a date-time […]
Error with Solr DataImporter using Mongodb
Question : I’ve configured my environment and I’ve downloading Solr 4.7 The idea is make an indexing my mongodb database. […]
I cannot do anything on replSet when auth is enabled
Question : I have a mongodb cluster with one replSet, 3 config servers, and 2 mongos instances. I logged into […]
How to avoid warning with file system cache in mongodb?
Question : OS Windows 10 x64. Version of MongoDB 3.6.5 When I’m starting mongo process, I’m always getting: MongoDB shell […]
(Ubuntu) Tried to move my MongoDB database to an external drive and now it throws errors
Question : I can run mongodb fine from my internal drive but if I try to set the –dbpath to […]
Sizing a MongoDB shard?
Question : I am in the process of planning a MongoDB deployment, this will be my first to production and […]
MongoDB — Failed global initialization: Failed to open “/var/log/mongodb/mongod-config.log”
Question : I’m trying to setup the config servers for mongodb sharding. I created a specific config file that is […]