BELUGA BEHR created YARN-9076:
---------------------------------
Summary: ContainerShellWebSocket Render Process Output
Key: YARN-9076
URL: https://issues.apache.org/jira/browse/YARN-9076
Project: Hadoop YARN
Issue Type: Improvement
Components: webapp
Affects Versions: 3.3.0
Reporter: BELUGA BEHR
Attachments: YARN-9076.1.patch
{code:java|title=ContainerShellWebSocket.java}
// Render process output
int no = pair.in.available();
pair.in.read(buffer, 0, Math.min(no, buffer.length));
String formatted = new String(buffer, Charset.forName("UTF-8"))
.replaceAll("\n", "\r\n");
session.getRemote().sendString(formatted);
}
{code}
This code strikes me as a bit odd. First of it, it is using {{available{}}}
which is known as a being unreliable and inaccurate (i.e., for sockets) .
Second, it will only read a max of 4000 characters and that's it. Anything
else is truncated.
Change this code to read the entire data stream.
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