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fix: cache - duplicate records issue #4537

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oasisk merged 6 commits into from
Sep 13, 2024
Merged

fix: cache - duplicate records issue #4537

oasisk merged 6 commits into from
Sep 13, 2024

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@oasisk oasisk commented Sep 12, 2024 •
edited by coderabbitai bot
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Summary by CodeRabbit

  • New Features

    • Improved delta calculation logic for more accurate data processing.
    • Enhanced caching mechanism to prioritize the earliest timestamps for better performance.
    • Introduced flexible value retrieval from the database based on configuration settings.

  • Bug Fixes

    • Fixed issues with gap detection in results to ensure valid data is considered.
    • Enhanced error handling during value retrieval to prevent state updates on failures.

  • Refactor

    • Streamlined conditions for calculating delta_end_time and cache starting points.

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coderabbitai bot commented Sep 12, 2024 •
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Walkthrough

The changes in this pull request focus on refining the logic for calculating deltas and processing cached results. Specifically, the calculate_deltas_multi function has been updated to enhance the conditions for calculating delta_end_time and checking for gaps in results. Additionally, the write_results function has been modified to improve how results are cached, including adjustments to timestamp calculations and record handling based on sorting order.

Changes

Files Change Summary
src/service/search/cache/cacher.rs Adjusted the calculate_deltas_multi function to refine conditions for calculating delta_end_time and enhanced gap checking at the end of results. Removed unnecessary checks and improved robustness by ensuring valid data is considered.
src/service/search/cache/mod.rs Modified the write_results function to create a local copy of results and conditionally remove hits based on the is_descending flag. Changed the calculation of smallest_ts to use std::cmp::min, affecting caching behavior. Updated cache_start_time logic and filename for cached results to reflect these changes.
src/service/db/syslog.rs Updated the watch_syslog_settings function to introduce conditional logic for retrieving a boolean value from the database based on the meta_store_external configuration. Enhanced error handling during value retrieval and deserialization processes.

Possibly related PRs

  • fix: remove start date change for cache duration #4482: This PR modifies the calculate_deltas_multi function in the same file, impacting the logic of how deltas are processed, which is closely related to the changes made in the main PR.
  • fix: delta dedup for multi cache #4527: This PR involves changes to the src/service/search/cache/mod.rs file, enhancing the logic for handling cached data and query deltas, aligning with the main PR's focus on improving delta calculation and caching mechanisms.

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Files that changed from the base of the PR and between 5ceef63 and d685431.

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  • src/service/db/syslog.rs (1 hunks)
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src/service/db/syslog.rs (1)

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143-159: LGTM!

The code changes introduce a more flexible approach to value retrieval based on the meta_store_external configuration setting. The error handling ensures that the loop continues without crashing if there are issues with value retrieval or deserialization. The code is well-structured and follows the existing coding style.

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@github-actions github-actions bot added the ☢️ Bug Something isn't working label Sep 12, 2024
@oasisk oasisk merged commit 3841a29 into main Sep 13, 2024
@oasisk oasisk deleted the fix-cache---duplicate-records-issue- branch September 13, 2024 03:26
This was referenced Sep 21, 2024
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@coderabbitai coderabbitai bot mentioned this pull request Oct 15, 2024
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@hengfeiyang hengfeiyang hengfeiyang approved these changes

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