supervision - discussion about system services, daemon supervision, init, runlevel management, and tools such as s6 and runit
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* correct init
@ 2019-05-16 15:33 Jeff
  2019-05-16 15:52 ` Jeff
  0 siblings, 1 reply; 2+ messages in thread
From: Jeff @ 2019-05-16 15:33 UTC (permalink / raw)
  To: supervision

new postulation:

process #1 should not rely on conditions that it has not previously
ascertained to be true (eg by setting something up by itself, so it
exists and is safe to use/rely on it).

sounds self-evident ? sadly many inits do not comply with that
postulation, a well known example that comes immediatly to mind
is the poorly designed/though out SysV init itself.

the poor crap relies on the initctl fifo for ipc, how dumb can one be ?



^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: correct init
  2019-05-16 15:33 correct init Jeff
@ 2019-05-16 15:52 ` Jeff
  0 siblings, 0 replies; 2+ messages in thread
From: Jeff @ 2019-05-16 15:52 UTC (permalink / raw)
  To: supervision

> process #1 should not rely on conditions that it has not previously
> ascertained to be true (eg by setting something up by itself, so it
> exists and is safe to use/rely on it).

> sounds self-evident ? sadly many inits do not comply with that
> postulation, a well known example that comes immediatly to mind
> is the poorly designed/though out SysV init itself.

it also relies on syslog for logging, though it cannot ensure someone
listens to /dev/log and processes the log messages.




^ permalink raw reply	[flat|nested] 2+ messages in thread

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2019-05-16 15:33 correct init Jeff
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