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Datanexus / kafka

kafka platform
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set broker file-max #31

Open christopherkeller opened 4 years ago

christopherkeller commented 4 years ago

brokers should have the default file-max set to 100000 at a minimum. This isn't present in the other applications (not sure if there is harm), but for now, implement it only in the broker code.

/sbin/sysctl -w fs.file-max=100000

fs.file-max = 100000

christopherkeller commented 4 years ago

This is a little more complicated.

The override file is not correct, it needs to be renamed from /etc/sysctl.d/90-override.conf to /etc/sysctl.d/datanexus-override.conf. This is so it occurs lexographically after the CentOS default of 99-sysctl.conf and gets picked up.

The contents are:

fs.file-max=100000

christopherkeller commented 4 years ago

Set virtual memory max map:

sysctl -w vm.max_map_count=256000

echo 'vm.max_map_count=256000' >> /etc/sysctl.conf