name : discover-instances-revision.rst **Example 1: To discover the revision of an instance** The following ``discover-instances-revision`` example discovers the increasing revision of an instance. :: aws servicediscovery discover-instances-revision \ --namespace-name example.com \ --service-name myservice Output:: { "InstancesRevision": 123456 } For more information, see `AWS Cloud Map service instances <https://docs.aws.amazon.com/cloud-map/latest/dg/working-with-instances.html>`__ in the *AWS Cloud Map Developer Guide*. **Example 2: To discover the revision of instances from a specific owner account** The following ``discover-instances-revision`` example discovers the revision of instances from a specific owner account. The owner-account parameter is necessary for instances in namespaces that are shared with your account. :: aws servicediscovery discover-instances-revision \ --namespace-name shared-namespace \ --service-name shared-service \ --owner-account 123456789111 Output:: { "InstancesRevision": 1234567890 } For more information, see `Shared AWS Cloud Map namespaces <https://docs.aws.amazon.com/cloud-map/latest/dg/sharing-namespaces.html>`__ and `AWS Cloud Map service instances <https://docs.aws.amazon.com/cloud-map/latest/dg/working-with-instances.html>`__ in the *AWS Cloud Map Developer Guide*.