Drivers
59 results found
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Have the drivers tell us the cost of network connectivity within a query
Have the drivers tell us 1. total query execution time. 2. how much of total query execution time was network connectivity/latency and 3. how much time was the query on the cluster.
This would then tell the developers the cost of network connectivity because right now there is no easy way to measure network connectivity impact to the overall execution time of the query.
1 vote -
Make The client model serializable
I am working on a mongodb connector for the Apache Flink project - https://flink.apache.org/
Internally, Flink is using java serialization to save the records it is working on in a state which in turn used to recover from failures etc, as well as for passing records between different tasks in the pipeline.
I have noticed the mongodb client model classes are not Serializable for instance, classes such as WriteModel https://github.com/mongodb/mongo-java-driver/blob/master/driver-core/src/main/com/mongodb/client/model/WriteModel.java and its subclasses or the different Options like ReplaceOptions https://github.com/mongodb/mongo-java-driver/blob/master/driver-core/src/main/com/mongodb/client/model/ReplaceOptions.javais there a reason for these classes to not be declared Serializable? Is there a way to contribute to the…
1 vote -
Multiple collection ACID transactions
Currently we can update multiple documents with one query if all documents belong to the same collection as shown below;
dB.collection.bulkWrite([ query1, query2, query3, query4 ])
This feature is wonderful but it is paramount if mongodb can enable us to use this query or something similar to update multiple documents from different collections with the one query instead of having to send and await each query one at a time as is currently the case.
The truth is, mongodb only needs to enable this feature of being able to update multiple documents with one query from different collections and then…
1 vote -
Serve API endpoint for MongoDB Compatibility Matrix
This is a feature request for website API calls/endpoints to retrieve the MongoDB Compatibility matrix for each driver language. For example, NodeJS is located here in HTML format https://docs.mongodb.com/drivers/node/current/compatibility/
It would be helpful to have a programmatic endpoint for the same compat table results. This will help log parsers and aggregators to quickly identify applications and clients that are connecting to deployments with untested or incompatible client drivers.
1 vote -
SnakeCaseElementNameConvention
Please add support for snake case convention. Snake Case is super popular with API designs.
https://mongodb.github.io/mongo-csharp-driver/2.13/reference/bson/mapping/conventions/
1 vote -
GeoNear support on C# driver
Would be great to have GeoNear support on csharp driver https://docs.mongodb.com/manual/reference/operator/aggregation/geoNear/
1 vote -
Support "default" keyword in MongoDB's implementation of JSON Schema
Without defaults, there is a need to iterate though each property just to check if a default value is needed (most probably this can be easily done on type check). Also without defaults we need to remember checking it both in inserts and updates (for example with $push operator)
1 vote -
Add some casting addon or function based on MongoDB's implementation of JSON Schema
Without casting addons, there is a need to iterate though each property just to check if this value needs some casting (most probably this can be easily done on type check). I´m having special troubles with Date type, as most of the time this type is send as an ISO string, but saved in the DB as a DATE
1 vote -
Provide a direct download for current versions of driver files/dependencies on the official MongoDB sites
Note: This post was inspired by my attempts to find a direct download for the MongoDB Java driver, but I've left the category as "Unspecified" because it could apply to any driver download for which the official sites say to "Just use Maven/etc"
Right now the documentation for the MongoDB Java driver (https://mongodb.github.io/mongo-java-driver/4.2/driver/getting-started/installation/) indicates that "The recommended way to get started using one of the drivers in your project is with a dependency management system." However, as far as I could tell from my own research, the official MongoDB sites have no official direct download link for the…
1 vote -
Nearest read preference should take account of database load
I understand it only take account of network latency however this node can have high load and would give a poor response. Instead, I wished the driver would contact the more distant network latency node that has less CPU/memory load.
1 vote -
URI validation
I was building the URI in a spring configuration file as
spring.data.mongodb.uri=${MONGODB_URI}/test?retryWrites=true&w=majoritywhere MONGODB_URI came from a kubernetes secret (as it contains user & password)
somehow a new-line had slipped into the kubernetes secret, so the query was effectively asking for "fpos-dev-pl-1.kqybg.mongodb.net\n"
Besides learning how to correctly configure secrets, I learned in the process that neither Spring nor mongo was validating that spring.data.mongodb.uri was a well-formed URI and the application failed to start with error messages relating to not finding DNS and not being able to resolve the TXT record. This was very confusing.
The driver should accept a URI…
1 vote -
Create MSI package to install .NET MongoDB driver
I manage SQL Server. I would like to request standalone 32 and 64 bit MongoDB .Net Driver in MSI format. We typically do not install Development tools on SQL Server database hosts (no visual studio, no nuget.exe). So downloading the driver using package manager is challenging. If that is not possible, can you provide us how to download and install the driver using Powershell?
1 vote -
Expired Transactions failures should be reported more clearly in the driver error message
Long-running transactions may trigger an aborted transaction, but the cause is not clearly communicated by the driver exception message.
Failed: Command insert failed: Transaction 1 has been aborted..
Unhandled exception. MongoDB.Driver.MongoCommandException: Command insert failed: Transaction 1 has been aborted..To reproduce, set a very low timeout:
replicaset:PRIMARY> db.adminCommand( { setParameter: 1, transactionLifetimeLimitSeconds: 1 } )
Then run a long running transaction from the C# driver.
The cause can be confirmed by checking the MongoDB log for a [abortExpiredTransaction]:
replicaset:PRIMARY> show log global
2020-07-31T03:59:49.196+0000 I COMMAND [abortExpiredTransactions] Aborting transaction with txnNumber 1 on session xxxxxx because it has been running for…
1 vote -
Add non-EJSON as option for json utils
python and other drivers offer to-json utils. This makes taking a native rich shape complete with datetimes and byte[] and such and easily turning into bson (the best way!) or JSON. The utils offer options to modify the output representations of types but always do so in an EJSON way, namely with $date/$numberDecimal etc. Sometimes a consumer cannot (or will not) accept data in this fashion. I'd like to see a "safePureJSON" option (or similar) for bson.json_utils.dumps() that emits the safe string or number equivalent of the EJSON.
fld: {$date: "ISOdate"} becomes fld: "ISOdate"
fld: {$numberDecimal: "99.9"} becomes fld: "99.9"…1 vote -
CSFLE - Enable automatic decryption of change streams
Currently change streams are disabled when a CSFLE MonogClient() session is used.
This is due to this CSFLE specifications.Mongocryptd will not support “collectionless” aggregation metadata sources, which read metadata that doesn’t pertain to a particular collection. The drivers should not contact mongocryptd for such commands, since they don’t have a particular schema to pass to mongocryptd, so it is the drivers’ ultimate responsibility to return an error to the application for the collectionless aggregation metadata sources:
$currentOp $changeStream for watching a database or the whole cluster $listSessions $listLocalSessionsEnable auto decryption and change streams in the presence of auto-encryption-settings
1 vote -
Ignore unmapped fields in pojo deserialization
A recent ticket (00664772) with the mongodb support team confirm that the following case is not handled by the Java driver:
class Foo {
int x;
int y;
}I can successfully write and read it. However, if the Document has extra fields, it cannot be deserialized and no option exists to allow this behavior:
{ x:123, y:456, z:789 } // why can't I ignore 'z'?
My suggestion is, provide an annotation to support this behavior:
@BsonIgnoreUnmappedFields
class Foo {
int x;
int y;
}1 vote -
Add support for SSH Tunnel
Similar to the request for SOCKS proxy support, it would be good to add support for SSH tunnels for drivers (since Compass supports this already).
This can be useful for developers working remotely when company policy disallows whitelisting home IP addresses.
1 vote -
Have option to auto add/update timestamp
It would be great if driver can auto update createdat and updatedat timestamp/date
1 vote -
A tool to test the connection that can fix resolution issues in server selection
This is probably not Node Specific a general problem with connecting via a seed list.
ServerSelection via seed list is a great concept. It works poorly. I have attached an hour of starting a working webserver app and 30 times starting it in a little over an hour. It failed to connect over 40 % of the time. A larger amount of successful connections were made over 35 seconds which means they would fail in a hosting environment like Heroku. Only 10% of the time did it connect in < 6 seconds. Your support team is avoiding using seed lists…1 vote
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