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docs: new Ansible limitation

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David Wilson 2018-02-27 19:43:43 +05:45
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@ -86,6 +86,13 @@ This is a proof of concept: issues below are exclusively due to code immaturity.
* Interaction with modules employing special action plugins is mostly untested,
except for the ``synchronize`` and ``template`` modules.
* Transfer of large (i.e. GB-sized) files using certain Ansible-internal APIs,
such as triggered via the ``copy`` module, will cause corresponding temporary
memory and CPU spikes on both host and target machine, due to delivering the
file as a single large message. If many machines are targetted with a large
file, the host machine could easily exhaust available RAM. This will be fixed
soon as it's likely to be tickled by common playbook use cases.
* Ansible defaults to requiring pseudo TTYs for most SSH invocations, in order
to allow it to handle ``sudo`` with ``requiretty`` enabled, however it
disables pseudo TTYs for certain commands where standard input is required or