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Akka MongoDB Lease

This module enables IPF users to use MongoDB as a lease (distributed lock) provider. For more information about leases, see the official Akka docs.

When to Use

In an IPF context, you generally do not need to use a lease to ensure safety of clustered operations (singleton or shard creation, split brain resolver downing).

However, you should use this discovery method only when all the following are true:

  1. IPF nodes are running in a multi DC setup on Kubernetes

  2. Each DC runs its own Kubernetes cluster

  3. IPF nodes form a single Akka Cluster [1]

  4. All Kubernetes clusters can access the same MongoDB instance

If IPF is running in a multi-DC environment, but the DCs belong to a single Kubernetes cluster, you should use the official Kubernetes API lease.

1. Requires all nodes to be reachable by other nodes, either by running on a routeable pod network or via nodePort