Skip to content

fix: HA proxy memory runaway on certain rpm based distro's -> Setting maxconn in haproxy config (#15319) #18283

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.

Sign up for GitHub

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

Merged
merged 5 commits into from
May 8, 2025
Merged

fix: HA proxy memory runaway on certain rpm based distro's -> Setting maxconn in haproxy config (#15319) #18283

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
6c35fb1
Fixing redis extra values
timgriffiths Jun 12, 2024
8640ebc
Merge branch 'master' into fix-#15319
timgriffiths Nov 21, 2024
c9a2d43
Merge branch 'master' into fix-#15319
timgriffiths Nov 24, 2024
5865089
Merge branch 'master' into fix-#15319
agaudreault May 7, 2025
52dd2b0
codegen
agaudreault May 7, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 5 additions & 1 deletion manifests/ha/base/redis-ha/chart/upstream.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -701,6 +701,10 @@ data:
stats enable
stats uri /stats
stats refresh 10s
# Additional configuration
global
maxconn 4096
Copy link
Contributor

@andrii-korotkov-verkada andrii-korotkov-verkada Nov 9, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Is the value already being used by some code?

Copy link
Contributor Author

@timgriffiths timgriffiths Nov 12, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

My understanding here is this value used to be based on the max file descriptors the kernel would give you, in RHEL7 and 8 I believe this used to be 4096 (hence me using this value) in RHEL9 and i believe some other distro's this limit is removed and ha-proxy just tries to use all the file descriptors on the box until it runs out of memory now unless you set maxconn in it's config.

I don't see any harm in reducing the number but this was just chosen to be the absolute worst-case situation to maintain functionality


haproxy_init.sh: |
HAPROXY_CONF=/data/haproxy.cfg
cp /readonly/haproxy.cfg "$HAPROXY_CONF"
Expand Down Expand Up @@ -1068,7 +1072,7 @@ spec:
prometheus.io/port: "9101"
prometheus.io/scrape: "true"
prometheus.io/path: "/metrics"
checksum/config: e34e8124c38bcfd2f16e75620bbde30158686692b13bc449eecc44c51b207d54
checksum/config: cd6508bdf9819601c454d0cc491fb77a209e3a88761d92514d105b6681829953
spec:
# Needed when using unmodified rbac-setup.yml

Expand Down
3 changes: 3 additions & 0 deletions manifests/ha/base/redis-ha/chart/values.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,9 @@ redis-ha:
checkInterval: 3s
metrics:
enabled: true
extraConfig: |
global
maxconn 4096
image:
tag: 7.0.15-alpine
containerSecurityContext: null
Expand Down
5 changes: 3 additions & 2 deletions manifests/ha/install.yaml
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

5 changes: 3 additions & 2 deletions manifests/ha/namespace-install.yaml
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.