> On 21. Jul 2020, at 23:05, 'Martin Schmude' via Jenkins Developers 
> <[email protected]> wrote:
> 
> This reminds me of that I am worried from time to time by the terms "agent" 
> and "node".
> They seem to be synonyms - am I right?
> If so, shouldn't "agent" be the preferred term, due to the decision of 2016 
> and "node" be dropped?
> 

These terms are useful and consistent, as master can also be a node. By 
default, it's even the only node.

So "node" is an term for "master and agents" (at least the "executing 
workloads" part of master, see my and others' feedback to the ongoing 
terminology update that it could make sense to use different terms here).

> to me, node = executor, but not really

One node can have multiple executors. Executors are individual slots for a 
single workload.

By default, a new Jenkins installation has 1 node (the master) with 2 
executors, and 0 agents.

All of that is also explained in https://www.jenkins.io/doc/book/glossary/

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