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Normalize maximum time in MS parameter name, maxTimeMS vs max_time_ms

Currently, some operations such as aggregate() or count\_documents use maxTimeMS as parameter name, but others such as the find(), use max\_time\_ms, so unless you memorize which method uses which nomenclature, you have to check the docs every tim...

Guest over 3 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

Raise an error when "majority" writes not possible

This topic is related to https://www.mongodb.com/docs/v6.0/tutorial/mitigate-psa-performance-issues/ in a PSA ReplicaSet configuration. When you try to execute a command with writeConcern `{w: "majority"}` in a three-member Primary-Secondary-Arbi...

Wernfried Domscheit over 3 years ago in Replication & Sharding 0 Submitted

1 VOTE

CommandStartedEvent::getCommand() not instance of Explainable

I'm trying to build a verbose mode in our MongoDB wrapper library. I was able to implement debug output leveraging CommandSubscriber interface. This part works. However what I would also like to do is create support for automatic explaining of que...

Guest over 3 years ago in Drivers (ie: Node.js, Java, .NET) 1 Submitted

1 VOTE

Generic count property in _WriteResult class

Hi, I'm using a MongoDB as a backend for my API and often come to a case where i want to validate whether I updated, inserted or deleted any records. At the moment I use the deleted_count and machted_count properties in the DeleteResult and Updat...

Guest almost 4 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

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 connect...

Guest about 4 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

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...

Guest about 4 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

URL Decode `readPreferenceTags`

If a url encoded value is set to readPreferenceTags it will be ignored causing for instance connecting to analytics node impossible from tooling that correctly encodes the urls. It can look like this for instance: `readPreferenceTags=nodeType:ANA...

Guest about 4 years ago in Replication & Sharding 0 Submitted

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 ena...

Guest over 4 years ago in Drivers & Frameworks 0 Submitted

1 VOTE

Shard Drain/ Removal issue

If we have more shards, and if want to remove few shards (more than 1), we use below command. db.adminCommand( { removeShard : "Shardname" } ) Ex, if I have Shard 1, 2, 3, 4, 5. want to remove Shard 2 & 5. I want to remove one shard at a ...

Guest over 4 years ago in Replication & Sharding 0 Submitted

1 VOTE

Mongo replicaset init sync issue

When we have large size mongo replica set, we may have to take out each nodes for maintenance for few hrs or days. In that case we have to increase size of Oplog to keep several days of transactions to resync nodes after maintanance. If the RS h...

Guest over 4 years ago in Replication & Sharding 0 Submitted

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