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Avoid reading unnecessary dimension values when downsampling #124451
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Merged
martijnvg
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elastic:main
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martijnvg:downsampling_improve_dimension_processing
Mar 10, 2025
Merged
Avoid reading unnecessary dimension values when downsampling #124451
martijnvg
merged 4 commits into
elastic:main
from
martijnvg:downsampling_improve_dimension_processing
Mar 10, 2025
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Pinging @elastic/es-storage-engine (Team:StorageEngine) |
Hi @martijnvg, I've created a changelog YAML for you. |
kkrik-es
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Neat
martijnvg
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Mar 10, 2025
…#124451) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
This was referenced Mar 10, 2025
martijnvg
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Mar 10, 2025
…#124451) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
martijnvg
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to martijnvg/elasticsearch
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Mar 10, 2025
…#124451) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
elasticsearchmachine
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Mar 10, 2025
#124470) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
elasticsearchmachine
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Mar 10, 2025
#124468) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
elasticsearchmachine
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that referenced
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Mar 10, 2025
#124469) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
georgewallace
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Mar 11, 2025
…#124451) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
jfreden
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Mar 13, 2025
…#124451) Read dimension values once per tsid/bucket docid range instead of for each document being processed. The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads. Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).
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auto-backport
Automatically create backport pull requests when merged
>bug
:StorageEngine/Downsampling
Downsampling (replacement for rollups) - Turn fine-grained time-based data into coarser-grained data
Team:StorageEngine
v8.18.1
v8.19.0
v9.0.1
v9.1.0
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Read dimension values once per tsid/bucket docid range instead of for each document being processed.
The dimension value within a bucket-interval docid range is always to same and this avoids unnecessary reads.
Latency of downsampling the tsdb track index into a 1 hour interval downsample index drop by ~16% (running on my local machine).