Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

worker_connections should be less (3/4th) than worker_rlimit_nofile #3667

Merged

Conversation

ElvinEfendi
Copy link
Member

What this PR does / why we need it:
When calculated automatically we set worker_rlimit_nofile and worker_connections to the same value. This can be problematic because connections are not the only things using file descriptors. Nginx can be using file descriptors to open temporary files it uses to store cached data, or for serving static asset, or serving compressed data from disk etc.

This PR suggest to set the worker_connections to 75% of worker_rlimit_nofile, but I'm not yet convinced this is the best option. Open for discussion.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

@k8s-ci-robot k8s-ci-robot added do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Jan 15, 2019
@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jan 15, 2019
@moonming
Copy link
Contributor

I think set the worker_connections to 75% of worker_rlimit_nofile is fine

@ElvinEfendi ElvinEfendi force-pushed the fix-worker-connection-calculation branch from d3fda08 to 22a4132 Compare February 3, 2019 02:01
@ElvinEfendi ElvinEfendi changed the title [WIP] worker_connections should be less than worker_rlimit_nofile worker_connections should be less (3/4th) than worker_rlimit_nofile Feb 3, 2019
@k8s-ci-robot k8s-ci-robot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Feb 3, 2019
@ElvinEfendi ElvinEfendi force-pushed the fix-worker-connection-calculation branch from 22a4132 to 638f965 Compare February 3, 2019 03:30
@aledbf
Copy link
Member

aledbf commented Feb 6, 2019

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Feb 6, 2019
@k8s-ci-robot
Copy link
Contributor

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, ElvinEfendi

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

@k8s-ci-robot k8s-ci-robot merged commit ef7d7cf into kubernetes:master Feb 6, 2019
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
approved Indicates a PR has been approved by an approver from all required OWNERS files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. lgtm "Looks good to me", indicates that a PR is ready to be merged. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files.
Projects
None yet
Development

Successfully merging this pull request may close these issues.

4 participants