Optimize used segment fetching in Kill tasks#15107
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AmatyaAvadhanula merged 6 commits intoapache:masterfrom Oct 9, 2023
Merged
Optimize used segment fetching in Kill tasks#15107AmatyaAvadhanula merged 6 commits intoapache:masterfrom
AmatyaAvadhanula merged 6 commits intoapache:masterfrom
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abhishekagarwal87
approved these changes
Oct 7, 2023
kfaraz
reviewed
Oct 8, 2023
| final Set<Map<String, Object>> usedSegmentLoadSpecs = toolbox | ||
| .getTaskActionClient() | ||
| .submit(new RetrieveUsedSegmentsAction(getDataSource(), getInterval(), null, Segments.INCLUDING_OVERSHADOWED)) | ||
| .submit(new RetrieveUsedSegmentsAction( |
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Format: would be easier to read if the unused intervals were pre-constructed and the constructor was moved to a new line.
Suggested change
| .submit(new RetrieveUsedSegmentsAction( | |
| .submit( | |
| new RetrieveUsedSegmentsAction(getDataSource(), null, unusedIntervals, Segments.INCLUDING_OVERSHADOWED) | |
| ) |
Comment on lines
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| .filter(unusedSegment -> !usedSegmentLoadSpecs.contains(unusedSegment.getLoadSpec()) | ||
| || unusedSegment.getLoadSpec() == null) |
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unusedSegment.getLoadSpec() == null should be checked first IMO.
| @JsonCreator | ||
| public Stats( | ||
| @JsonProperty("numSegmentsKilled") int numSegmentsKilled, | ||
| @JsonProperty("numSegmentsKilledInDeepStorage") int numSegmentsKilledInDeepStorage, |
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Why add this property too? This is a user-facing property.
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I had added it to test the changes. I can remove it if it is unnecessary in the report
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lets remove it please. we will add it later if its needed.
ektravel
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Oct 16, 2023
* Optimize used segment fetching in Kill tasks
10 tasks
CaseyPan
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Nov 17, 2023
* Optimize used segment fetching in Kill tasks
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#14407 - introduced a change in the behaviour of kill tasks to fetch used specs to prevent used load specs from being killed.
However there could be a significant overhead when this is done for each batch. This PR aims to optimize it.
The preliminary approach taken in this PR is to only fetch those used segments belonging to the intervals corresponding to the unused segments in a given batch.
This PR has: