Hello!
When parameter cannot be changed without restarting the server postgresql write:
"LOG: configuration file "/var/lib/postgresql/data/postgresql.auto.conf" contains errors; unaffected changes were applied"
May be not write this string to LOG?
This string confuses people. If all log send to ELK, then administrator think that postgresql have error. But postgresql do not have error.
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С уважением, Антон Пацев.
Best regards, Anton Patsev.