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Type: Bug
Resolution: Done
Priority: Blocker
Fix Version/s: maistra-2.0.3
Affects Version/s: None
Component/s: ior
Labels:
None

Blocked:
False
Ready:
False
Release Note Text:
Undefined
Git Pull Request:
https://github.com/maistra/istio/pull/296
Market:

Sprint:
Sprint 1, Sprint 2

SFDC Cases Counter:
SFDC Cases Open:
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The IOR codebase needs to be revamped as it has a significant performance problem when dealing with large numbers of namespaces.

Every time a Gateway resource is modified the IOR codebase queries the k8s api server for routes in every configured namespace, consuming a significant amount of time in larger systems (200/500+ namespaces)

https://github.com/maistra/istio/blob/dff17a7a330526ed3ed374b31dc45b7d2ab35636/pilot/pkg/config/kube/ior/route.go#L103-L111

It also has a search based on O(nroutes + ngateways)

https://github.com/maistra/istio/blob/dff17a7a330526ed3ed374b31dc45b7d2ab35636/pilot/pkg/config/kube/ior/route.go#L115-L122

We also need to check if this applies to the 1.1 codebase.

is blocked by

MAISTRA-2197 SMMR controller sends a fake first update

Closed

is cloned by

MAISTRA-2245 IOR queries

Closed

is related to

OSSM-1900 IOR findService queries the API server for each namespace

Closed

relates to

MAISTRA-681 Performance Issues when control plane has lots of namespaces

Closed

Assignee:: Kevin Conner (Inactive)

Reporter:: Kevin Conner (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Created:: 2021/03/03 6:00 PM

Updated:: 2021/04/14 1:37 AM

Resolved:: 2021/04/14 1:37 AM

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