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Fix schedulers not getting executed when cache key is not set #3121

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merged 1 commit into from
Jan 4, 2024

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hdkshingala
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@hdkshingala hdkshingala commented Jan 4, 2024

Checklist
  • Tested in playground or other setup

Summary by CodeRabbit

  • Refactor

    • Improved the initialization process for cache lookup results to enhance performance.
  • Style

    • Updated variable naming for clarity and consistency in the configuration scripts.

@hdkshingala hdkshingala requested review from a team as code owners January 4, 2024 11:10
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coderabbitai bot commented Jan 4, 2024

Walkthrough

The changes involve a tweak in the caching mechanism for a Cache struct in a Go package, specifically modifying how a response object is instantiated. Additionally, there's a variable rename in a Tiltfile, replacing personal_api_key with personal_access_token, reflecting a shift towards a more standardized naming convention for access credentials.

Changes

File Summary
pkg/.../cache.go Modified LookupResultNoWait to initialize resultCacheResponse as a pointer within the function body.
playground/Tiltfile Renamed personal_api_key to personal_access_token and updated related code logic.

Poem

🐇✨
In the land of code, where the data caches flow,
A rabbit tweaked a pointer, to make the responses glow.
Renamed a key to token, with a hop and a skip,
A tiny change unfurls, like a script's clever quip.
🌟🐾


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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between b4abafb and e6ca2d1.
Files selected for processing (2)
  • pkg/policies/flowcontrol/cache.go (2 hunks)
  • playground/Tiltfile (2 hunks)
Additional comments: 5
pkg/policies/flowcontrol/cache.go (2)
  • 223-227: Initialization of resultCacheResponse has been changed to occur within the function body instead of at the point of declaration. This change could potentially affect the logic of how resultCacheResponse is handled, especially in cases where request is nil. Ensure that this change is intentional and tested, particularly for the nil request scenario.
Verification successful

I will attempt a different approach to verify the behavior of the LookupResultNoWait method when request is nil by adjusting the ast-grep pattern.


I will now use ripgrep (rg) to search for the LookupResultNoWait method directly in the codebase to understand its behavior when request is nil.


I will now display the contents of the LookupResultNoWait method to verify its behavior when request is nil.


The contents of the LookupResultNoWait method in the Cache struct show that when request is nil, the method returns resultCacheResponse as nil and a reference to wgResult. The change in the initialization of resultCacheResponse within the function body does not affect the behavior when request is nil, as it still returns a nil pointer for resultCacheResponse.

Based on the provided code snippet, the behavior when request is nil appears to be correctly handled and consistent with the expected logic.

Scripts Executed

The following scripts were executed for the analysis:


Script:

#!/bin/bash
# Verify that the change in initialization does not affect the behavior when request is nil.
ast-grep --lang go --pattern $'func (c *Cache) LookupResultNoWait($_, $_) ($_ *flowcontrolv1.KeyLookupResponse, $_ *sync.WaitGroup) {
  $$$
  if $_ == nil {
    $$$
  }
  $$$
}'

Length of output: 178



Script:

#!/bin/bash
# Attempting a broader pattern match for the LookupResultNoWait method to ensure we capture the relevant code.
ast-grep --lang go --pattern $'func (c *Cache) LookupResultNoWait($$$) {
  $$$
  if $_ == nil {
    $$$
  }
  $$$
}'

Length of output: 117



Script:

#!/bin/bash
# Using ripgrep to find the LookupResultNoWait method in the Cache struct.
rg "func \(c \*Cache\) LookupResultNoWait"

Length of output: 231



Script:

#!/bin/bash
# Displaying the contents of the LookupResultNoWait method to understand its behavior when request is nil.
cat pkg/policies/flowcontrol/cache.go | sed -n '/func (c \*Cache) LookupResultNoWait/,/}/p'

Length of output: 422

* 233-236: The `resultCacheResponse` is now being initialized inside an `if` block that checks if `request.ResultCacheKey` is not empty. This change seems to be a part of the bug fix to ensure that `resultCacheResponse` is only initialized when there is a valid cache key. This is a logical change that should prevent the creation of unnecessary objects and potentially resolve the issue with schedulers not executing when the cache key is not set.
playground/Tiltfile (3)
  • 1308-1320: The renaming of personal_api_key to personal_access_token is consistent with the PR objectives. Ensure that all references to the old variable name are updated across the entire codebase to maintain consistency.
Verification successful

The search results indicate that the variable personal_api_key does not appear in the codebase, while personal_access_token is used in several places within playground/Tiltfile. This suggests that the renaming has been applied consistently in the Tiltfile.

  • No instances of personal_api_key were found, indicating the old variable name has been removed.
  • Multiple instances of personal_access_token were found, confirming the new variable name is in use.

Based on the provided context and the search results, the review comment is consistent with the changes in the codebase.

Scripts Executed

The following scripts were executed for the analysis:


Script:

#!/bin/bash
# Verify that the old variable name is no longer used.
rg --type starlark 'personal_api_key'
# Verify that the new variable name is used consistently.
rg --type starlark 'personal_access_token'

Length of output: 146



Script:

#!/bin/bash
# Search for occurrences of 'personal_api_key' without specifying file type.
rg 'personal_api_key'
# Search for occurrences of 'personal_access_token' without specifying file type.
rg 'personal_access_token'

Length of output: 469

* 1317-1320: The conditional logic for setting `personal_access_token` only when `cloud_controller` is true aligns with the intended functionality.
  • 1332-1339: The logic for populating the cloud_extension dictionary with personal_access_token and project_name only when they are set is correct and follows best practices for optional configuration.

@hdkshingala hdkshingala merged commit e506d1b into main Jan 4, 2024
21 checks passed
@hdkshingala hdkshingala deleted the fix-schedulers-not-executing branch January 4, 2024 11:19
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2 participants