Database
292 results found
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Tiered TTL for time series collection based on granularity
Currently time series collections have a single TTL across all inherent granularities. It would be great to specify a TTL for each granularity. For example:
For seconds: 1 week
For hours: 1 month
Others: neverCourse information should be held longer than finer information in some cases - currently they all fall under the main TTL specified.
2 votes -
support $lookup for update aggregation
We frequently denormalise either full documents or subsets to different documents in order to speed up reading, create indexes or paginate/sort on fields.
Consider a user collection and a task collection, if a task can be assigned to the user, it makes sense to just put the user document on the task they are assigned. But an update to a user now requires you to update the user both in the user collection and all tasks with that user in the tasks collection.
This can be achieved but does introduce some complexity, however the introduction of updates using aggregation pipelines…
2 votes -
Support for MongoDB Server on Ubuntu 21.04.
Per the MongoDB Server Supported Platforms Matrix support for Ubuntu 21.04 is not yet available.
We would like to see the currently supported MongoDB Server versions available on the Ubuntu 21.04 LTS distribution which was released on 22 April 20212 votes -
Provide a KRB5_KTNAME setParameter or other config setting
The Kerberos keytab file is specified in the KRB5_KTNAME environment variable.
Could a setParameter or other config file setting "krb5KtName" be provided to allow this to be set?
2 votes -
Update to two binding accounts in the config file for LDAP.
Please refer the Case: 00803199
We need to update to two binding accounts in the config file to for LDAP authentication so that we can avoid down time while resetting the binding account password.
2 votes -
Ability to replicate the data within a cluster to another cluster
Two different scenarios. One scenario is to have a DR cluster. 2 independant clusters that are one way synced. As of right now, a custom CDC solution (custom code + Kafka) is needed to achieve this.
Another is because of latency and the requirement for data to be stored in 2 different data center, 2 indepentant mongoDB clusters that are two way synced. As of right now, a custom CDC solution (custom code + Kafka) is needed to achieve this.2 votes -
Record running queries at the time of a failover
I recently observed some failovers in a replica set that may have been related to long-running queries. However, since these queries happened only sporadically, it was hard to track them down. Since the queries didn't finish, they weren't present in the logs at the time of the crash.
It would be useful if it could be possible to somehow capture the long-running queries that were running at the time that something went wrong. I recognize that this is potentially impossible, since once something has gone wrong it can be difficult to do anything.
We ended up being able to diagnose…
2 votes -
Create and use db links in Mongodb
Allow Mongodb to access an external database for:
1.select identifiers on an external rdbms (ex: postgres, sqls, oracle, ...)
2.use these identifiers to perform aggregations in MongodbCurrently, it is necessary to use a third-party tool that connects to several data sources to perform these actions.
The idea is to be able to perform these "joins" only in Mongodb CLI.Regards,
Jerome2 votes -
Deny Network Access to MongoDB Cluster
To improve network security, please create an option to Deny specific Network Adresses to MongoDB Cluster.
2 votes -
Document known breaking change in JavaScript Engine
If a new version of MongoDB will include a new version of MozJS (ex https://jira.mongodb.org/browse/SERVER-29286) and this version will break any existing scripts it would be ideal if this was documented.
For example, with MongoDB 4.2 "value".contains() no longer worked in scripts and had to be converted to "value".includes()
2 votes -
VPC between ATLAS/MongoDB/AWS and Heroku/AWS
Would be a great great feature if we can create a VPC between ATLAS/MongoDB/AWS and Heroku/AWS.
Thanks.
Adailton Silva2 votes -
Add option to repair a single collection
Add support for repairing a single collection instead of what is currently available to repair an entire database via db.repairDatabase()
2 votes -
Aggregate $accumulator 'Combine' stage for sharded collections
After the ‘accumulate’ stage has run against each document on a shard it would be extremely useful to run a script on the shard against the state to reduce the state down to something smaller before passing the final state over the network back to mongos for the ‘merge’. (Over in the Elastic camp they call this the ‘combine_script’).
Scenario:
I have a customer orders database sharded by the Customer ID (meaning all data relating to any specific customer is kept on the same shard - so customers don’t need to be ‘merged’ between shards). I can write an accumulator…2 votes -
Assign MongoDB roles to LDAP users
I would like to create a softlab and therefore give the possibility to a user to create collections in a database which is dedicated to him.
Currently, to do that I need to :
1. create a single-member LDAP group for each user
2. map this group to a MongoDB role authorizing the user's database.Create a group with a single member is conceptually useless. I want to avoid step 1.
My feature request : add the ability to assign MongoDB roles to LDAP users as well as groups.
Regards,
Jerome2 votes -
Support for Transaction Savepoints (Nested Transactions)
The ability to partially rollback transactions to a specified point.
2 votes -
Allow collection collation to be editable
Collation of a collection can be set at creation time only. It would be useful to edit these fields to avoid creating an entire new collection and copying the collection over.
2 votes -
Validation for referential integrity
Currently, with the JSON Schema validation, we are able to limit the values for a field using enumerations. However, we need to have a way to limit the values to those entered in another collection.
2 votes -
Add Event Stream Features (Apache Kafka, NATS Streaming)
I thought it would be great if mongodb can support an event streaming(event bus) feature.
Existing popular event streaming services(AWS Kinesis, NATS Streaming, Apache Kafka) can persist data which is somewhat like a database.Its great for debugging, data logging for later uses such as machine learning. Since I can see the full flow of the data and its changes.
But there are two downside with most even streaming services.
1. Its very difficult to query the data.
2. "Eventual Consistency" issue when dealing programmatic errors(bugs). Most event streams have this nice feature, which keeps sending the same event to…2 votes -
Performance problem with compound index using doubles, with range filtering
It looks like there may be a problem when using doubles in a compound index and using range-test filters against all of them in a query.
The problem we see from the explain plans is that far more keys are being examined that there should be and this leads to poor performance.
If we switch to using a similar setup but with integers instead, we don’t see the problem.See the second part of this ticket for full details
https://support.mongodb.com/case/00659614
We have a document that looks like this –
{
"id" : ObjectId("5e2ab24eca314f10b486d827"),
"attributes" : [
{
"attributeCode" :…2 votes -
Too many keys in 2dsphere index when used on geoJson within arrays
Mongo support have asked me to raise this bug as an improvement idea because they see it as an edge case.
The issue is here and includes more details:https://support.mongodb.com/case/00659614
In summary, if you have a geoJson sub document that sits within an array, and you index it using the 2dspehere index, you get keys duplicated for every element in the array.
For example, if you have geoJson that represents a big 4,500 vertex polygon, and you put it within an array element, if the array has only one element I see 20 keys generated, which is good. But if…
2 votes
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