refactor: Limit processing of blocks to requested fingerprint ranges in bloom gateway #11987
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chaudum
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Feb 19, 2024
chaudum
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owen-d
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Feb 19, 2024
pkg/bloomgateway/util_test.go
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| v1.NewBounds(0, 2), | ||
| v1.NewBounds(5, 19), | ||
| v1.NewBounds(25, 29), | ||
| }, |
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nit: add a test where there is no overlap but the comparison is between the other two:
mb := bounds(0,10) + bounds (30,40)
target = bounds(15,25)
pkg/bloomgateway/util.go
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| type MultiFingerprintBounds []v1.FingerprintBounds | ||
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| func (mb MultiFingerprintBounds) Union(target v1.FingerprintBounds) MultiFingerprintBounds { |
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I think for this to behave as expected, the multi-bounds must be
a) sorted already
b) contain disjoint (non-overlapping) ranges
Otherwise you can end up with many overlapping ranges in the result set as well.
Consider:
multi = [(0,6), (5,15)]
target = (8,10)
result = [(0,6), (5,15)] // can be further reduced
Thinking about it, it's probably not a real concern we have if we can ensure the multi-bounds are ordered and non overlapping.
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I solved the issue by using a different algorithm.
salvacorts
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Feb 20, 2024
This PR limits the amount of data being processed for a single multiplexed iteration to the union of the fingerprint bounds of its requests, instead of looking at blocks from the complete fingerprint range. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>
Signed-off-by: Christian Haudum <christian.haudum@gmail.com>
Signed-off-by: Christian Haudum <christian.haudum@gmail.com>
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onelapahead
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Feb 22, 2024
…in bloom gateway (grafana#11987) This PR limits the amount of data being processed for a single multiplexed iteration to the union of the fingerprint bounds of its requests, instead of looking at blocks from the complete fingerprint range. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>
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…in bloom gateway (grafana#11987) This PR limits the amount of data being processed for a single multiplexed iteration to the union of the fingerprint bounds of its requests, instead of looking at blocks from the complete fingerprint range. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>
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What this PR does / why we need it:
This PR limits the amount of data being processed for a single multiplexed iteration to the union of the fingerprint bounds of its requests, instead of looking at blocks from the complete fingerprint range.