Colin Patrick McCabe created HDFS-4353:
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Summary: Encapsulate connections to peers in Peer and PeerServer
classes
Key: HDFS-4353
URL: https://issues.apache.org/jira/browse/HDFS-4353
Project: Hadoop HDFS
Issue Type: Sub-task
Components: datanode, hdfs-client
Affects Versions: 2.0.3-alpha
Reporter: Colin Patrick McCabe
Assignee: Colin Patrick McCabe
Attachments: 02-cumulative.patch
Encapsulate connections to peers into the {{Peer}} and {{PeerServer}} classes.
Since many Java classes may be involved with these connections, it makes sense
to create a container for them. For example, a connection to a peer may have
an input stream, output stream, readablebytechannel, encrypted output stream,
and encrypted input stream associated with it.
This makes us less dependent on the {{NetUtils}} methods which use
{{instanceof}} to manipulate socket and stream states based on the runtime
type. it also paves the way to introduce UNIX domain sockets which don't
inherit from {{java.net.Socket}}.
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