[V2] Speed up sandbox startup with K3s tuning flags#7186
Closed
[V2] Speed up sandbox startup with K3s tuning flags#7186
Conversation
Optimize K3s startup in the sandbox by adding tuning flags: - `--flannel-backend=host-gw`: Use host-gw instead of VXLAN overlay for faster CNI setup. In a single-node sandbox, host-gw adds static routes directly to the routing table instead of creating VXLAN tunnels. - `--kubelet-arg=node-status-update-frequency=2s`: Reduce kubelet heartbeat interval from default 10s to 2s so the node is marked Ready faster. - `--kube-controller-manager-arg=node-monitor-period=2s`: Reduce controller manager's node check interval from default 5s to 2s. - `--disable=servicelb`: Disable the built-in service load balancer (unused). Also fix a bug where embedded-postgres fails to start on container restart due to a stale postmaster.pid file from unclean shutdown. Signed-off-by: Kevin Su <pingsutw@apache.org>
Signed-off-by: Kevin Su <pingsutw@apache.org>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
make sandbox-runfor faster pod startup:--flannel-backend=host-gw— faster CNI setup (no VXLAN tunnel creation)--kubelet-arg=node-status-update-frequency=2s— node marked Ready sooner--kube-controller-manager-arg=node-monitor-period=2s— faster node monitoring--disable=servicelb— disable unused service load balancerpostmaster.pidpreventing embedded-postgres from starting on container restartTest plan
make sandbox-runstarts successfullyflytenamespace reach Running statehttp://localhost:30080/v2http://localhost:30080/healthzmain