Database
302 results found
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TTL index activity statistics
Dear all,
Presently, there is no visibility or tracking of TTL index activity: no data available to the user to see how much data and how often has been deleted. I suggest having a separate “dictionary” collection with statistics for all TTL indexes with pre-defined data retention (aka last month).
Thank you for looking at that.
Regards, Marina.
1 vote -
Raise maximum BSON document size bigger than 16 MB
Per https://www.mongodb.com/docs/manual/reference/limits/#:~:text=The%20maximum%20BSON%20document%20size,MongoDB%20provides%20the%20GridFS%20API, maximum BSON document size is 16 MB. I would like to request this to support bigger sizes like 32 MB, 64 MB or even bigger.
98 votes -
Allow to define access to DBs/collections by prefix or pattern.
Please extend ACL to support prefixes (or regex) in the database name/collection.
Currently only allowed ALL (when empty string provided) or exact db/collection matching when provided.Use case: Several services are using the same cluster but need to be isolated. Every service can get readWriteAnyDatabase but only to databases prefixed by some prefix.
Services need to create new databases on the fly, so it is not possible to define a list of databases upfront.For example - rwRoleForService1 allows "update", "insert", and "remove" operations only on databases prefixed by "service1-" (sevice1-db1, sevice1-db2, ....)
{
role: "rwRoleForService1",
privileges: [
{
{…7 votes -
Sorting support on Array fields.
Presently, I'm attempting to arrange(sort) the documents within my collection based on a key nested within an array object. However, sorting isn't functioning as expected in this scenario.
A proper explanation with example is here what I mean.
https://www.mongodb.com/community/forums/t/how-to-sort-documents-in-collection-on-basis-of-array-fields/270867?u=samrat_n_a1 vote -
support parallel query executions include find(), aggregation()
To use multi-core environment and enhance the query performance w/ a large amount of documents, need a parallel execution.
Sharding or microsharding is not an alternative in this case.3 votes -
JSON
I'm converting a lot of data for export from MongoDB -> Postgresql
I would like an aggregation function to convert an object to JSON
{
"$addField": {
"_id": true,
"json": {
'$convert': {
'input': '$subdocument',
'to': 'json', # // Idealy, +1 for msgpack https://msgpack.org/
}
}
}
}thus object.json would be a STRING "{abc: true}"
FYI: Postgresql supports JSON(B) in it's field structures: https://www.postgresql.org/docs/current/datatype-json.html
1 vote -
Self-Managed Computed Collections
This feature would enable MongoDB to automatically generate common patterns by computing entire collections. A particularly useful application would be the ability to identify duplicate fields within a collection and create a computed collection that groups all possible duplicate together.
Sometimes, a field is duplicated between two documents, while another field in the same document is duplicated across seven other documents. Each of these seven documents might have fields that are duplicated in yet other documents, leading to a vast iteration in search of possibilities.
Having MongoDB abstract all this logic in a performant manner to create computed collections would…
1 vote -
TTL index throttling for deletion
To avoid deletion impact, we need to control the quantity and speed of document generations(insert).
Need a way to throttle down the deletion quantity per a delete operation.i.e. # of documents per a ttl delete, sleep time between deletions(default 60s)
2 votes -
How to limit the number of document updates?
Hi
I want to limit the number of document updates in one command.for example
db.users.updateMany(
<filter>,
<update>,
{
limit : 100
}
);https://www.mongodb.com/community/forums/t/how-to-limit-the-number-of-document-updates/102204/3
25 votes -
Make account connections stable
My account is stuck in "We are deploying your changes (current action: configuring MongoDB)" endless loop for the entire eveing and I cannot finish my project for tomorrow. Cannot connect to my database even with a saved IP.
Yes it's a free account, but this is not a way to just kill any possibility to connect to a simple database. This is a flop1 vote -
Improve Changestream metadata by including userId(who), action/intent (event name).
This can be done by including meta data in the options for C(R)UD operations!
Something like:User.updateOne({ _id }, { $set: { name: "newName" } }, { $meta: { userId: _id, action: "nameUpdated" })This is super useful because now changestream can be used to create event store or audit logs, out of the box. I just have to store all the changestream events from the relevant collections. This also makes event driven architecture in micro services super useful. Developers can use this to publish events directly to a message broker such as kafka, where action would be equivalent to…
2 votes -
Fine-tune the update privilege action
We want our devs to be able to update docs, but only one at a time. If they need to update a bunch together, they should check in with the DBA. Right now, we can't fine-tune the update permissions like we'd prefer, so we're looking into ways to make that happen. This will help us manage document updates better and add a layer of security.
1 vote -
Fine-tune the update privilege action
We want our devs to be able to update docs, but only one at a time. If they need to update a bunch together, they should check in with the DBA. Right now, we can't fine-tune the update permissions like we'd prefer, so we're looking into ways to make that happen. This will help us manage document updates better and add layer of security.
1 vote -
no puedo crear bases de datos
quiero elegir un servicio para crear la base de datos y no me deja en cuanto selecciono free o cualquier otro me envia al overview y nunca puedo terminar de apretar el boton para crear la base de datos
1 vote -
I just wanted to say Good job!!!
Appreciation
2 votes -
define the random seed manually, for $rand and $sample
It will be great if an additional paramater to define the seed for $rand and $sample could be use.
2 votes -
Unique Indexes and Bulk Upserts for Time Series Collections
We would like to insert data in bulk into time series collections and identify the new data that has been inserted without the possibility of duplicates being inserted.
For regular collections this is achievable by adding a unique index and performing a bulk upsert (as any duplicates will be rejected due to the unique index).
For time series collections however unique indexes are not currently supported.
In addition performing an upsert with $setOnInsert option which should only action insert operations is also not currently supported for time series collections.
At the moment the only options appear to be:
(1) to…
11 votes -
AWS IAM Role integration with MongoDB On premise
We are planning to integrate AWS IAM Roles/Users with MongoDB On-premise for password-less authentication. So the authentication happens through IAM Profile. However, we noticed currently MongoDB on-premise doesn't support AWS IAM Role integration. This is a blocker. We want the authentication would happen through AWS IAM Profile rather than Standard Credentials.
This would eliminate or significantly reduce the use of Database Credentials while tightly integrating with AWS Services. Simultaneously, applications can securely connect to MongoDB via AWS Profile.1 vote -
array length as computed to be indexed
in some cases, I need to filter only docs with specific (or range of) sizes of nested arrays.
it will be good if I can configure 'automatic index' to keep the length of the array, based on the field name I will provide to the index, and then I can easily get the docs.(now I need to add and maintain this field on myself or with trigger)
1 vote -
prometheus metrics availablity through privatelink
until now is only possible to get metrics from public or private peered vpc but is not actually possible through privatelink. Since privatelink are used most of the time for security reason this limitation leads to find compromises or workaround to customers
19 votes
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