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## org.apache.cassandra.streaming
Class StreamOut

    java.lang.Object
      org.apache.cassandra.streaming.StreamOut

    public class StreamOut

extends java.lang.Object

This class handles streaming data from one node to another. For bootstrap, 1. BOOTSTRAP_TOKEN asks the most-loaded node what Token to use to split its Range in two. 2. STREAM_REQUEST tells source nodes to send us the necessary Ranges 3. source nodes send STREAM_INITIATE to us to say "get ready to receive data" [if there is data to send] 4. when we have everything set up to receive the data, we send STREAM_INITIATE_DONE back to the source nodes and they start streaming 5. when streaming is complete, we send STREAM_FINISHED to the source so it can clean up on its end For unbootstrap, the leaving node starts with step 3 (1 and 2 are skipped entirely). This is why STREAM_INITIATE is a separate verb, rather than just a reply to STREAM_REQUEST; the REQUEST is optional.

Constructor Summary
`StreamOut()`

Method Summary
`static void` | `transferRanges(java.net.InetAddress target, java.lang.String tableName, java.util.Collection<Range> ranges, java.lang.Runnable callback)` Split out files for all tables on disk locally for each range and then stream them to the target endpoint.
`static void` | `transferSSTables(java.net.InetAddress target, java.util.List<SSTableReader> sstables, java.lang.String table)` Transfers a group of sstables from a single table to the target endpoint and then marks them as ready for local deletion.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### StreamOut

    public StreamOut()

Method Detail

### transferRanges

    public static void transferRanges(java.net.InetAddress target,
                                      java.lang.String tableName,
                                      java.util.Collection<Range> ranges,
                                      java.lang.Runnable callback)

  Split out files for all tables on disk locally for each range and then stream them to the target endpoint.

### transferSSTables

    public static void transferSSTables(java.net.InetAddress target,
                                        java.util.List<SSTableReader> sstables,
                                        java.lang.String table)
                                 throws java.io.IOException

  Transfers a group of sstables from a single table to the target endpoint and then marks them as ready for local deletion.

  Throws:
    `java.io.IOException`

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Copyright © 2010 The Apache Software Foundation