# Package org.apache.lucene.replicator.nrt

package org.apache.lucene.replicator.nrt
Near-real-time replication framework

- Class
  Description
  CopyJob
  Handles copying one set of files, e.g.
  CopyJob.OnceDone
  Callback invoked by CopyJob once all files have (finally) finished copying
  CopyOneFile
  Copies one file from an incoming DataInput to a dest filename in a local Directory
  CopyState
  Holds incRef'd file level details for one point-in-time segment infos on the primary node.
  FileMetaData
  Holds metadata details about a single file that we use to confirm two files (one remote, one local) are in fact "identical".
  Node
  Common base class for `PrimaryNode` and `ReplicaNode`.
  NodeCommunicationException
  Should be thrown by subclasses of `PrimaryNode` and `ReplicaNode` if a non-fatal exception occurred while communicating between nodes.
  PrimaryNode
  Node that holds an IndexWriter, indexing documents into its local index.
  ReplicaNode
  Replica node, that pulls index changes from the primary node by copying newly flushed or merged index files.