Reconstructs a directory's replica set, allowing you to exclude a
 replica or re-specify replica types.

 SYNOPSIS

      SET DIRECTORY directory-name TO NEW EPOCH MASTER

      clearinghouse-name [,READ-ONLY clearinghouse-name] [...]

      [,EXCLUDE clearinghouse-name]

 directory-name

 The full name of the directory.

 clearinghouse-name

 The name of the clearinghouse in which an individual replica is
 located. The first clearinghouse-name specifies where the master
 replica is stored.

 ACCESS RIGHTS
 You must have read and control access to all the replicas in the
 replica set. To change the type of replica, you must have write
 access to the clearinghouse that stores the replica whose type is
 being changed.

1  –  example

 The following command sets a new epoch for the directory .mfg.
 The master replica is in .paris_ch, and read-only replicas are in
 .chicago1_ch, .seattle_ch, and .ny1_ch. The new replica set excludes
 the replica in .ny1_ch.

 dns> set directory .mfg to new epoch master .paris1_ch, -
 _> read-only .chicago1_ch, read-only .seattle_ch, exclude .ny1_ch