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[identity] increase number of tasks and enable stickiness on load balancer
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Authored by varun on Nov 30 2023, 9:07 AM.
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rCOMM64515d7a9e8f: [identity] increase number of tasks and enable stickiness on load balancer
Summary

Resolves https://linear.app/comm/issue/ENG-5909/increase-number-of-identity-service-nodes-on-stagingprod

We want to get used to thinking of the identity service as a distributed system. Enabling session stickiness lets us send _finish RPC requests to the same task as the corresponding _start requests by setting a cookie.

Test Plan

https://gist.github.com/vdhanan/07cd60c9474f76d63fa10ef9d909b8ef

used the lb cookie to send a bunch of requests in quick succession, saw in the staging logs that they went to the same task until the cookie expired, at which point they went to both tasks

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Event Timeline

varun created this revision.Nov 30 2023, 9:07 AM
Herald added subscribers: tomek, ashoat. · View Herald TranscriptNov 30 2023, 9:07 AM
varun added inline comments.Nov 30 2023, 9:14 AM
services/identity/Dockerfile
1 ↗(On Diff #34059)

i think we need 1.68+ (they optimized cargo builds in 1.68 i believe) to build images now... was running into OOM issues on 1.67

services/terraform/remote/service_identity.tf
2 ↗(On Diff #34059)

ah need to fix this

Harbormaster completed remote builds in B24647: Diff 34059.Nov 30 2023, 9:40 AM
varun requested review of this revision.Nov 30 2023, 9:40 AM
varun updated this revision to Diff 34063.Nov 30 2023, 10:20 AM

fix terraform config

Harbormaster completed remote builds in B24650: Diff 34063.Nov 30 2023, 10:39 AM
varun added a child revision: D10121: [grpc clients] use cookie for finish requests.Nov 30 2023, 6:11 PM
bartek accepted this revision.Dec 1 2023, 12:26 AM
bartek added inline comments.
services/identity/Dockerfile
1 ↗(On Diff #34059)

👍 also changed this in D9058 so one of us needs to rebase

services/terraform/remote/service_identity.tf
2 ↗(On Diff #34063)

Just a note: We're moving to semver versioning, so this is going to be 0.5.0.

I'll be bumping versions anyway so there's no need to re-tag existing images

This revision is now accepted and ready to land.Dec 1 2023, 12:26 AM
Closed by commit rCOMM64515d7a9e8f: [identity] increase number of tasks and enable stickiness on load balancer (authored by varun). · Explain WhyDec 4 2023, 7:23 AM
This revision was automatically updated to reflect the committed changes.
varun added a commit: rCOMM64515d7a9e8f: [identity] increase number of tasks and enable stickiness on load balancer.

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terraform/
remote/
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services/terraform/remote/service_identity.tf

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