Simplify SpreadMinimizingTokenGenerator for easier reuse in partitions ring. #462
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pstibrany
commented
Jan 10, 2024
| allTokens, err := t.generateAllTokens() | ||
| if err != nil { | ||
| // we were unable to generate required tokens, so we panic. | ||
| panic(err) |
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This panic is not new, it was just moved from generateTokensByInstanceID to this method.
duricanikolic
approved these changes
Jan 10, 2024
| } | ||
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| func (t *SpreadMinimizingTokenGenerator) CanJoin(instances map[string]InstanceDesc) error { | ||
| if !t.canJoinEnabled { | ||
| return nil | ||
| } | ||
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| prevInstance, err := previousInstance(t.instance) | ||
| if err != nil { | ||
| if errors.Is(err, errorNoPreviousInstance) { |
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Could you please check whether we still need errorNoPreviousInstance? I think that at this point it should be removed.
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This PR removed errorNoPreviousInstance variable.
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What this PR does:
This PR simplifies internals of
SpreadMinimizingTokenGenerator: it removes logger, slice with zones, parsing of instance when computing previous instance.These changes make it easier to reuse this token generator in partitions ring code (https://github.com/grafana/dskit/compare/partitions-ring branch).
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]