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server: use no-op cost controller for shared-process tenants#99113

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craig[bot] merged 2 commits intocockroachdb:masterfrom
stevendanna:no-cost-controller-shared-process
Mar 21, 2023
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server: use no-op cost controller for shared-process tenants#99113
craig[bot] merged 2 commits intocockroachdb:masterfrom
stevendanna:no-cost-controller-shared-process

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@stevendanna
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@stevendanna stevendanna commented Mar 21, 2023

In the long run, all rate limiting of tenants should be controlled by
a tenant capability.

However, at the moment, we do not have the infrastructure to read
tenant capabilities from the tenant process.

Since, the main user of shared-process tenants is the new,
experimental unified-architecture were we do not anticipate needing
the cost controller for most users, this PR injects a no-op cost
controller for shared-process tenants.

Epic: CRDB-23559

Release note: None

@stevendanna stevendanna requested a review from a team March 21, 2023 12:38
@stevendanna stevendanna requested review from a team as code owners March 21, 2023 12:38
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blathers-crl bot commented Mar 21, 2023

It looks like your PR touches production code but doesn't add or edit any test code. Did you consider adding tests to your PR?

🦉 Hoot! I am a Blathers, a bot for CockroachDB. My owner is dev-inf.

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@knz knz left a comment

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Reviewed 1 of 1 files at r1.
Reviewable status: :shipit: complete! 0 of 0 LGTMs obtained (waiting on @stevendanna)


pkg/server/tenant.go line 194 at r1 (raw file):

	// the tenant is exempt. For now we are turning off the
	// tenant-side cost controller for shared-memory tenants until
	// we have the abilility to read capabilities tenant-side.

Can you file the followup issue and link it from here thanks

In the long run, all rate limiting of tenants should be controlled by
a tenant capability.

However, at the moment, we do not have the infrastructure to read
tenant capabilities from the tenant process.

Since, the main user of shared-process tenants is the new,
experimental unified-architecture were we do not anticipate needing
the cost controller for most users, this PR injects a no-op cost
controller for shared-process tenants.

Epic: CRDB-23559

Release note: None
This exempts the tenant from the KV-side tenant limiter. We expect
this to be the default configuration of most shared-process tenants in
the near term. Thus, setting this during benchmark setups provides
more accurate benchmarks.

Epic: none

Release note: None
@stevendanna stevendanna force-pushed the no-cost-controller-shared-process branch from b2f9558 to 9e05d17 Compare March 21, 2023 13:02
@stevendanna
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bors r=knz

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craig bot commented Mar 21, 2023

Build failed (retrying...):

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craig bot commented Mar 21, 2023

Build succeeded:

@craig craig bot merged commit 18e6641 into cockroachdb:master Mar 21, 2023
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3 participants