Change nofile ulimit instructions for Systemd

[russelldb]

Change nofile ulimit instructions for Systemd

[kesslerm]

You can also make the appropriate settings in either the *.service file or a an override.conf file for the Riak service. E.g. Elasticsearch does this in its service file.

[warmfusion]

Heres a more explicit version on how to fix it, at least on a Debian host;

mkdir /etc/systemd/system/riak.service.d
cat << EOF >> /etc/systemd/system/riak.service.d/override.conf
[Service]
LimitNOFILE=65536
EOF
systemctl daemon-reload

Then just restart riak.

The real solution is to add LimitNOFILE=65536 into the riak service itself and save this messing around.