175,559 questions
-2
votes
0
answers
37
views
in what DB can personal information be fully encrypted in database, so to render data breaches less worth it? [closed]
I am here to ask if there would be ways to make databases more secure by storing all my information in an encrypted format.
I read that MongoDB features data encryption even when the data is in ...
- 1,230
0
votes
1
answer
29
views
Performance impact of updating leading vs. trailing fields in a MongoDB compound index
I am working with MongoDB and have a compound index on a collection, e.g., { a: 1, b: 1 }. I want to understand the performance implications when updating documents with respect to the fields in this ...
0
votes
0
answers
44
views
How do we model the data in Mongodb which requires Aggregation [closed]
I have a collection defined in MongoDB like,
type EmployeeAttendance struct {
Id mtdb.ObjID `bson:"_id,omitempty"`
SiteId string
Tenant string
...
2
votes
0
answers
56
views
MongoDB Atlas connection error: queryTxt ETIMEOUT with Mongoose
Mongoose connection to MongoDB Atlas fails with queryTxt ETIMEOUT
I’m trying to connect my Node.js app to MongoDB Atlas using Mongoose, but the connection fails with a timeout error.
Here’s the error ...
- 21
1
vote
1
answer
40
views
MongoDB $unset with all positional operator $[] only if array field exists
I'm trying to use the $[] (positional array-wide update operator) to $unset a field from all nested documents in an array.
Imagine a document like this:
{
"_id": 123,
"orderDate&...
- 14.2k
-1
votes
1
answer
75
views
can mongoDB use the full depth of a compound index on an array of subdocuments?
index:
{
"name": "tar",
"key": {
"tar.a": 1,
"tar.b": 1
}
tar is an array of subdocuments.
query:
...
0
votes
0
answers
49
views
MongoDB database is getting deleted automatically [closed]
I recently got a server and set up MongoDB on it for my application. The problem I’m facing is that my application’s database keeps getting deleted on its own. I’ve encountered this issue three times ...
- 1
0
votes
0
answers
70
views
MongoDB target fails with 401 error on Prometheus web UI
We use Azure managed Prometheus and are trying to integrate it with Atlas MongoDB. We followed this tutorial to implement this integration.
We got the below scrape config following the above tutorial.
...
- 132
0
votes
2
answers
41
views
MongoDB Find Two Values from array & add them to variables
I have the following object:
{
_id: 'id_value',
formHeader: [
{
label: 'Operation Sequence',
value: '5.00'
},
{
label: 'Operation Code',
value: 'IV1'
},
...
- 531
-5
votes
1
answer
63
views
Can MongoDB use an index for $exists: false on an indexed field? [closed]
Given a aggregation pipeline like this, in which I use a $match with { $exists: false } on a indexed field:
db.collection.aggregate([
{
$match: {
myField: { $exists: false }
}
}
])
...
0
votes
0
answers
36
views
MongoDB/Mongoose: Calculating large time series differentials in Node.js is too slow (~5–6 seconds) despite indexing and $slice
I’m building a financial backend in Node.js/Express that serves bond yield differentials for two countries at minute granularity.
Each country+bond maturity pair is stored in MongoDB as a single ...
- 1
0
votes
1
answer
45
views
RxJS Reactive way to handle async error callbacks like in finally
I'd like to await an async function regardless if there is an error or not. I am curious is there a more reactive and cleaner way to do this. In my code there are two session.endSession() and couple ...
- 1,067
0
votes
1
answer
83
views
Generic mongoose dynamic module cannot inject options
I wanna have a dynamic module which should take care of registering mongoose for me. Right now I have a problem with injecting the options asynchronously when I am invoking MongooseModule.forRootAsync(...
0
votes
0
answers
76
views
How to read data from MongoDB collection using SparkSession into a Spark DataFrameReader?
Spark reading data from MongoDB(ver 7.0) and DocumentDB(ver 4.0) and loading into the spark DataFrameReader is failing when DataFrameReader.isEmpty() method is called . SparkSession and ...
0
votes
1
answer
39
views
Apache Spark Error: Cannot cast STRING into a StructType(StructField(subFieldA,StringType,true)) (value: BsonString{value='{}'})
I’m reading documents from DocDB (MongoDB) into Spark using the mongo-spark-connector.
One of the fields, fieldA, is a nested object. If fieldA is missing in a document, I replace it with an empty ...
- 119