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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-8839) Define a protocol exchange between websocket client and server for interactive shell
Date Tue, 16 Oct 2018 22:49:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-8839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Yang reassigned YARN-8839:
-------------------------------

    Assignee: Eric Yang

> Define a protocol exchange between websocket client and server for interactive shell
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-8839
>                 URL: https://issues.apache.org/jira/browse/YARN-8839
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Major
>              Labels: docker
>
> Running interactive shell is more than piping stdio from docker exec through a web socket.
 For enabling terminal based program to run, there are certain functions that work outside
of stdio streams to the destination program.  A couple known functions to improve terminal
usability:
> # Resize terminal columns and rows
> # Set title of the window
> # Upload files via zmodem protocol
> # Set terminal type
> # Heartbeat (poll server side for more data)
> # Send keystroke payload to server side
> If we want to be on parity with commonly supported ssh terminal functions, we need to
develop a set of protocols between websocket client and server.  Client and server intercept
the messages to enable functions that are normally outside of the stdio streams.



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