I’ve a graylog server configured that is working fine but it is eating RAM cache earlier it was 8GB or RAM and i was thinking of its a normal behavior as it use to store indices and more. but now i have increased the instance to 16GB, and again i’m seeing the same.
Memory user 5GB and Cache used is : 10Gb
Please suggest on same.
what is the configured JVM HEAP for your Graylog Server?
What is the setting in the Graylog startup Script?
We haven’t change any setting in startup script, it is default.
See, there’s your hint where to look and what to change. 
I have seen and JVM HEAP setting in graylog-server startup script. if you are indicating /etc/init.d/graylog-server.
See http://docs.graylog.org/en/2.4/pages/configuration/file_location.html for the correct file location.
haven’t found and JVM file for graylog (/etc/default/graylog-server) no file found.
Which operating system are you using?
How exactly have you installed Graylog?
The file you’ve mentioned only exists on Debian and Ubuntu systems on which Graylog has been installed via the DEB package.
i have installed on amazon ec2 linux. which is using rpm packages to install packages
here is the setting saved in file.
GRAYLOG_SERVER_JAVA_OPTS="-Xms1g -Xmx1g -XX:NewRatio=1 -server -XX:+ResizeTLAB -XX:+UseConcMarkSweepGC -XX:+CMSConcurrentMTEnabled -XX:+CMSClassUnloadingEnabled -XX:+UseParNewGC -XX:-OmitStackTraceInFastThrow"
Team still waiting for response ?
If you want any kind of SLA or help that is in time of of some kind of quality you should consider buying professional service and/or Graylog Enterprise including support https://www.graylog.org/pricing
This is the community forum where all help is given on a volunteer level.
@JAN…lol good one 
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