Before you replicate data from source cluster to destination cluster, you must connect
the target Cloudera Manager instance with the peer (source Cloudera Manager), and then test the
connectivity.
Consider the following points before you add a peer:
The required source and target clusters must be healthy and available.
If your cluster uses SAML authentication, see Configuring peers with
SAML authentication before configuring a peer.
Cloudera recommends that TLS/SSL be used. A unknown exception of
typejavax.ws.rs.processingexception while connecting to https://[***SOURCE
CLUSTER CLOUDERA MANAGER SERVER***]:7183 warning appears if the URL
scheme is HTTP instead of HTTPS.
When Cloudera Manager is configured with Knox and the source and target
clusters are Knox-SSO enabled, ensure that you use the Cloudera Manager port in the peer
URL when you add the source and target clusters as peers.
Go to the Cloudera Manager > Replication > Peers page.
If there are no existing peers, Add Peer appears along with a
short message. If peers already exist, they appear in the Peers
list.
The following sample image shows the Peers page:
Click Add Peer.
In the Add Peer dialog box, provide a name, the peer URL
(including the port) of the Cloudera Manager Server source for the data to be replicated,
and the login credentials for that server.
Option
Description
Peer Name
Enter a user-friendly name for the source Cloudera Manager
instance.
Peer URL
Enter the full URI for the remote source Cloudera Manager instance. This
includes the URL and the port of the instance.
Peer Admin Username
Enter a username that is valid on the remote Cloudera Manager. The role
assigned to the login user on the source Cloudera Manager server must be
User Administrator or Full Administrator.
Peer Admin Password
Enter a password that is valid on the source remote Cloudera
Manager.
Create User With Admin Role
Choose to add the peer as an admin peer.
This option is mandatory to
create Ranger replication policies.
Click Add to create the peer relationship.
The peer is added to the Peers list. Cloudera Manager
automatically tests the connection between the Cloudera Manager Server and the peer. You can
also click Test Connectivity to test the connection. Test Connectivity also tests the Kerberos
configuration for the clusters.