Linux Kernel Config Scopes within VM or Hypervisor Post: 303030901

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Operating Systems Linux Linux Kernel Config Scopes within VM or Hypervisor Post 303030901 by freedombird9 on Tuesday 19th of February 2019 01:35:40 AM

02-19-2019

Registered User

Linux Kernel Config Scopes within VM or Hypervisor

In production we're going to deploy a redis server and need to set the overcommit_memory and disable Transparent Huge Pages in Kernel.

The issue is currently we only have one giant server, and it is to be shared by many other apps. We only want those kernel configs in the redis server. I wonder if we can achieve it by spinning up a dedicated VM for redis. Doing so in docker certainly doesn't make sense.　My questions are:

Will those Kernel configs take actual effect in the redis VM even if the host OS doesn't have the same configs?　I doubt it since the hardware resource is allocated by the host machine in the end.
Will the kernel config in the redis VM affect other VMs that run other apps? I think it won't, just want to confirm.
To achieve the goal, what kind of VM or hypervisor should we use?

If there's no way to do it in VM, is having a separate server (hardware) for redis the only way to go?

Last edited by RavinderSingh13; 02-19-2019 at 06:47 AM..

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asadmin-list-resource-adapter-configs

asadmin-list-resource-adapter-configs(1AS)			   User Commands			asadmin-list-resource-adapter-configs(1AS)

NAME

       asadmin-list-resource-adapter-configs,  list-resource-adapter-configs  -  lists the configuration information created in domain.xml for the
       connector module

SYNOPSIS

       list-resource-adapter-configs --user admin_user [--password admin_password][--host localhost]  [--port  4848][--secure|-s]  [--passwordfile
       filename] [--terse=false] [--echo=false] [--interactive=true] [--verbose=false][--ranameconnector_module_name]

       Lists  the  configuration  information in the domain.xml for the connector module.  It lists an entry called resource-adapter-config in the
       domain.xml.

       This command is supported in remote mode only.

OPTIONS

       --user		       authorized domain application server administrative username.

       --password	       password to administer the domain application server.

       --host		       machine name where the domain application server is running.

       --port		       port number of the domain application server listening for administration requests.

       --secure 	       if true, uses SSL/TLS to communicate with the domain application server.

       --passwordfile	       file containing the domain application server password.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script. Default is false.

       --echo		       setting to true will echo the command line statement on the standard output. Default is false.

       --interactive	       if set to true (default), only the required password options are prompted.

       --verbose	       if set to true the properties that are configured are also listed. Default is false.

OPERANDS

       raname			the value kept in the resource-adapter-name in the domain.xml file.

       Example 1: Using list-resource-adapter-configs

       asadmin> list-resource-adapter-configs --username admin1
       --password adminadmin1
       Command list-resource-adapter-configs executed successfully

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-create-resource-adapter-config(1AS), asadmin-delete-resource-adapter-config(1AS)

J2EE 1.4 SDK							    March 2004				asadmin-list-resource-adapter-configs(1AS)