Data replication Before you use Replication Manager, you must understand some of the requirements about data replication. Cloudera license requirements for Replication ManagerYou must have the license to perform your tasks in Replication Manager Replicating directories with thousands of files and subdirectoriesBefore you replicate the data in directories that has thousands of files and subdirectories, increase the heap size in the hadoop-env.sh file.Replication Manager log retentionBy default, Cloudera Manager retains Replication Manager logs for 90 days. You can change the number of days Cloudera Manager retains logs or disable log retention completely.Replicating from unsecure to secure clustersYou can use Replication Manager to replicate data from an unsecure cluster, one that does not use Kerberos authentication, to a secure cluster, a cluster that uses Kerberos. Note that the reverse is not true.
