cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Sergio Bilello <lapostadiser...@gmail.com>
Subject Cassandra Recommended System Settings
Date Sat, 19 Oct 2019 01:04:37 GMT
Hello everyone!

Do you have any setting that you would change or tweak from the below list?

sudo cat /proc/4379/limits
Limit                     Soft Limit           Hard Limit           Units
Max cpu time              unlimited            unlimited            seconds
Max file size             unlimited            unlimited            bytes
Max data size             unlimited            unlimited            bytes
Max stack size            unlimited            unlimited            bytes
Max core file size        unlimited            unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             32768                32768                processes
Max open files            1048576              1048576              files
Max locked memory         unlimited            unlimited            bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       unlimited            unlimited            signals
Max msgqueue size         unlimited            unlimited            bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Max realtime timeout      unlimited            unlimited            us

These are the sysctl settings
default['cassandra']['sysctl'] = {
	'net.ipv4.tcp_keepalive_time' => 60, 
	'net.ipv4.tcp_keepalive_probes' => 3, 
	'net.ipv4.tcp_keepalive_intvl' => 10,
	'net.core.rmem_max' => 16777216,
	'net.core.wmem_max' => 16777216,
	'net.core.rmem_default' => 16777216,
	'net.core.wmem_default' => 16777216,
	'net.core.optmem_max' => 40960,
	'net.ipv4.tcp_rmem' => '4096 87380 16777216',
	'net.ipv4.tcp_wmem' => '4096 65536 16777216',
	'net.ipv4.ip_local_port_range' => '10000 65535',
	'net.ipv4.tcp_window_scaling' => 1,
       'net.core.netdev_max_backlog' => 2500,
       'net.core.somaxconn' => 65000,
	'vm.max_map_count' => 1048575,
	'vm.swappiness' => 0
}

Am I missing something else?

Do you have any experience to configure CENTOS 7
for 
JAVA HUGE PAGES
https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/config/configRecommendedSettings.html#CheckJavaHugepagessettings

OPTIMIZE SSD
https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/config/configRecommendedSettings.html#OptimizeSSDs

https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/config/configRecommendedSettings.html

We are using AWS i3.xlarge instances

Thanks,

Sergio

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@cassandra.apache.org
For additional commands, e-mail: user-help@cassandra.apache.org


Mime
View raw message