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Issue Docker max_map_count

hraschan

New Pleskian
Server operating system version
Ubuntu 18
Plesk version and microupdate number
18.0.50
When I try to increase the max_map_count setting by using the following command:

sudo sysctl -w vm.max_map_count=262144

i get the following error:
sysctl: Schlüssel »vm.max_map_count« wird gesetzt: Datei oder Verzeichnis nicht gefunden

How can i update the mentioned setting?
 
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