[Feature flag] Enable calculation of repository size via `filepath.WalkDir()`
What
Enable the :gitaly_repository_size_via_walk
feature flag, which enables deriving the on-disk repository size via filepath.WalkDir()
instead of spawning du(1). Rolls out !5517 (merged).
Owners
- Team: Gitaly
- Most appropriate slack channel to reach out to:
#g_gitaly
- Best individual to reach out to:
pks-t
Expectations
What release does this feature occur in first?
What are we expecting to happen?
Slight fluctuation in disk size is to be expected. It should become faster to determine the repository size for small repositories as we avoid the overhead of spawning du(1).
What might happen if this goes wrong?
Repository size calculations may start to misbehave.
What can we monitor to detect problems with this?
Roll Out Steps
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Enable on staging -
Is the required code deployed on staging? (howto) -
Enable on staging (howto) -
Add featureflagstaging to this issue (howto) -
Test on staging (howto) -
Verify the feature flag was used by checking Prometheus metric gitaly_feature_flag_checks_total
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Enable on production -
Is the required code deployed on production? (howto) -
Progressively enable in production (howto) -
Add featureflagproduction to this issue -
Verify the feature flag was used by checking Prometheus metric gitaly_feature_flag_checks_total
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Default-enable the feature flag (optional, only required if backwards-compatibility concerns exist) -
Wait for release containg default-disabled feature flag. -
Change the feature flag to default-enabled (howto) -
Wait for release containing default-enabled feature flag.
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Remove feature flag
Please refer to the documentation of feature flags for further information.
Edited by Patrick Steinhardt