Alex Vandiver 1c76036c61 puppet: Increase maximum file descriptors. ...

The current threshold of 40k descriptors was set in 2016, chosen to be
"at least 40x our current scale."  At present, that only provides a
50% safety margin.  Increase to 1 million to provide the same 40x
buffer as previously.

The highest value currently allowed by the kernels in
production (linux 5.3.0) is 1048576.  This is set as the hard limit.

The 1 million limit is likely far above what the system can handle for
other reasons (memory, cpu, etc).  While this removes a potential
safeguard on overload due to too many connections, due to the longpoll
architecture we would generally prefer to service more connections at
lower quality (due to CPU limitations) rather than randomly reject
additional connections.

Relevant prior commits:
 - 836f313e69
 - f2f97dd335
 - ec23996538
 - 8806ec698a
 - e4fce10f46

2023-03-03 16:39:47 -08:00

..

limits.conf

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