Replication & Sharding

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Bidirectional Data Replication beetween two or more clusters

In order to provide active-active deployments on multiple datacenter without need to shard data and route trafic based on shard-key. Develop a bidirectional replication with a conflict resolution method , for example , timestamp-based.

Guest about 4 years ago in Replication & Sharding 0 Submitted

14 VOTE

More complex balancer windows for sharded clusters

Currently we can define a single balancer window which is applied for every day of the week. It would useful to extend this with, for example: - multiple windows per day (e.g. 2-4am and 9-11pm) - custom windows for days of the week (e.g. Sat 5p...

Guest over 5 years ago in Replication & Sharding 0 Submitted

9 VOTE

Data Replication from one MongoDB Cluster to another MongoDB Cluster

Create an option for the user to replicate data from one MongoDB Cluster to another MongoDB Cluster inside the account. We don't need to migrate data, I need replicate data from an Production Cluster to an Dev/Test Cluster. Thanks.

Guest over 4 years ago in Replication & Sharding 0 Submitted

6 VOTE

Unique index in sharded cluster

For enforcing uniqueness in a sharded cluster, the officially recommended approach provided here https://docs.mongodb.com/manual/tutorial/unique-constraints-on-arbitrary-fields/#std-label-shard-key-arbitrary-uniqueness is simplistic and in product...

Guest almost 4 years ago in Replication & Sharding 0 Submitted

8 VOTE

Elevate hidden replica to a voting member when quorum is lost for a Replica Set

The MongoDB engine should allow for hidden members in a replica set to be automatically elevated to a voting member. When quorum is lost and can't be met, the hidden replica is automatically reconfigured to a voting member to obtain quorum. When ...

Guest over 5 years ago in Replication & Sharding 1 Submitted

1 VOTE

deleteMany() execution automatically disable the balancer on sharded clusters

Guest 8 months ago in Replication & Sharding 0 Submitted

1 VOTE

Scheduled stepdown for smoother primary election

Stepdown is a great tool that allows us to keep clusters operating smoothly. We use it for example when we want to perform some maintenance work on the host where the primary is currently running, to perform a rolling upgrade, and in many other ca...

Guest over 1 year ago in Replication & Sharding 0 Submitted

1 VOTE

allow mongosync to migrate few field from source to destination for collection in database

right now mongosync will migrate all the fields from source to destination based on filter or non filter setting but there is no way to move few field out of all field for all document to migrate few field from source to destination for collect...

Guest over 1 year ago in Replication & Sharding 0 Submitted

1 VOTE

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Guest over 1 year ago in Replication & Sharding 0 Submitted

2 VOTE

Use dedicated interface for replication and balancing

Like many other big database system, MongoDB may support to specify dedicated interfaces for replication and/or for the balancer (sharding) Currently you can configure replication sets and shards members only by single hostname/IP-Address, i.e. *...

Guest over 3 years ago in Replication & Sharding 0 Submitted

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