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[Backport 2.17] [RW Separation] Add routing preference to route requests only to search replicas.#15699

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mch2 merged 1 commit into2.17from
backport/backport-15690-to-2.17
Sep 4, 2024
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[Backport 2.17] [RW Separation] Add routing preference to route requests only to search replicas.#15699
mch2 merged 1 commit into2.17from
backport/backport-15690-to-2.17

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Backport b787753 from #15690.

…ch replicas. (#15563) (#15690)

* Add routing preference to route requests only to search replicas.

This adds SEARCH_REPLICA routing preference and defaults to this preference
for indices that have search replicas.

* add changelog entry

* PR feedback - extract a private method for replica filtering

* remove changelog entry

---------

(cherry picked from commit 3681b52)

Signed-off-by: Marc Handalian <marc.handalian@gmail.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
(cherry picked from commit b787753)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
@mch2 mch2 changed the title [Backport 2.17] [Backport 2.x] [RW Separation] Add routing preference to route requests only to search replicas. [Backport 2.17] [RW Separation] Add routing preference to route requests only to search replicas. Sep 4, 2024
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github-actions bot commented Sep 4, 2024

✅ Gradle check result for 26e16e3: SUCCESS

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codecov bot commented Sep 4, 2024

Codecov Report

Attention: Patch coverage is 84.21053% with 3 lines in your changes missing coverage. Please review.

Project coverage is 71.63%. Comparing base (bd5041f) to head (26e16e3).
Report is 1 commits behind head on 2.17.

Files with missing lines Patch % Lines
...g/opensearch/cluster/routing/OperationRouting.java 66.66% 0 Missing and 2 partials ⚠️
...search/cluster/routing/IndexShardRoutingTable.java 90.90% 0 Missing and 1 partial ⚠️
Additional details and impacted files
@@             Coverage Diff              @@
##               2.17   #15699      +/-   ##
============================================
- Coverage     71.77%   71.63%   -0.15%     
+ Complexity    64298    64229      -69     
============================================
  Files          5251     5251              
  Lines        300482   300493      +11     
  Branches      43724    43728       +4     
============================================
- Hits         215672   215251     -421     
- Misses        66760    67213     +453     
+ Partials      18050    18029      -21     

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@mch2 mch2 merged commit a3312b4 into 2.17 Sep 4, 2024
@andrross andrross deleted the backport/backport-15690-to-2.17 branch October 17, 2024 21:09
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