Disable memory swapping

[Doweig]

Hello guys,

I am currently trying to optimize Elasticsearch in production.
I have noticed that is it recommended to disable memory swapping in production and the official documentation is giving 3 ways to accomplish that:

https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html#_swapping_is_the_death_of_performance

1- sudo swapoff -a + edit /etc/fstab
2- Change the sysctl value, vm.swappiness = 1
3- Change java options by editing elasticsearch.yml, bootstrap.mlockall: true

Inside the docker image however, none of there 3 ways have been implemented

Is it something that should be handled on docker level or on the host level ?

Thank you in advance guys!

[patrickleet]

I also can't get this to work in a Docker container. Seems like the instructions are for everything except Alpine linux, which is what the official image is on.

@Doweig ever find any solutions for this?

[Doweig]

Nope

[gjobin]

Stuck on the same issue. Anybody ?

[elianka]

+1

[tianon]

Only the third of the suggested fixes is possible within a container -- the first two need to be completed on the container host instead.

As for changing the default options, we try to stick as close as possible to what upstream provides.

[mario-mui]

someone find any solutions for this?

[tianon]

This image is officially deprecated in favor of upstream's images (see https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html).

For more information, please see #160, docker-library/docs#842, and docker-library/docs#945.

This image has been deprecated in favor of the official elasticsearch image provided and maintained by elastic.co. The upstream images are available to pull via docker.elastic.co/elasticsearch/elasticsearch:[version] like 5.4.2. The images found here will receive no further updates once the 5.6.0 release is available upstream. Please adjust your usage accordingly.

Elastic provides open-source support for Elasticsearch via the elastic/elasticsearch GitHub repository and the Docker image via the elastic/elasticsearch-docker GitHub repository, as well as community support via its forums.

Thanks!