Backport PR-9107 to make search.concurrent.max_slice_count setting dy…

[sohami]

Description

Backporting changes made in main for #9107 as lucene is upgraded to 9.8 in 2.x branch

Related Issues

Resolves #9108

Check List

• [] New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: ❌
• URL:
• CommitID: af68cf7
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: ❌
• URL:
• CommitID: 7770b56
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Compatibility status:

Checks if related components are compatible with change f123369

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/neural-search.git]

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/27793/
• CommitID: c4fee7b
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/27799/
• CommitID: f123369
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[reta]

Thanks @sohami !

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/27804/
• CommitID: f123369

[codecov]

Codecov Report

Merging #10606 (f123369) into 2.x (52018ec) will increase coverage by 0.00%.
Report is 1 commits behind head on 2.x.
The diff coverage is 57.14%.

@@            Coverage Diff            @@
##                2.x   #10606   +/-   ##
=========================================
  Coverage     70.84%   70.85%           
- Complexity    58489    58503   +14     
=========================================
  Files          4831     4830    -1     
  Lines        276413   276409    -4     
  Branches      40581    40581           
=========================================
+ Hits         195822   195844   +22     
+ Misses        63872    63870    -2     
+ Partials      16719    16695   -24     

Files	Coverage Δ
...rg/opensearch/common/settings/ClusterSettings.java	92.85% <ø> (ø)
server/src/main/java/org/opensearch/node/Node.java	85.69% <ø> (-0.02%)	⬇️
...main/java/org/opensearch/search/SearchService.java	72.72% <100.00%> (+0.16%)	⬆️
...ensearch/search/internal/ContextIndexSearcher.java	73.37% <100.00%> (ø)
...search/search/internal/MaxTargetSliceSupplier.java	92.30% <100.00%> (ø)
.../org/opensearch/search/internal/SearchContext.java	41.50% <ø> (ø)
...nsearch/search/internal/FilteredSearchContext.java	8.69% <0.00%> (-0.08%)	⬇️
...va/org/opensearch/search/DefaultSearchContext.java	77.41% <33.33%> (-0.48%)	⬇️

... and 484 files with indirect coverage changes