Fixing the tests for concurrent search

[kasundra07]

Description

Follow-up to #11076.
Added indexRandomForConcurrentSearch method to the tests that were failing earlier for concurrent search case.

Related Issues

Resolves #11074

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

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[github-actions]

Compatibility status:

Checks if related components are compatible with change 84688b1

Incompatible components

Incompatible components: [https://github.com/opensearch-project/performance-analyzer.git]

Skipped components

Compatible components

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

[github-actions]

❌ Gradle check result for f1016d1: FAILURE

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 result for 11b883c: FAILURE

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 result for a99290c: FAILURE

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?

[kasundra07]

These tests are failing and are marked flaky -

• [BUG] SmokeTestMultiNodeClientYamlTestSuiteIT flaky test failure #9332
• [BUG] Test org.opensearch.indices.replication.SegmentReplicationSuiteIT is flaky #9499
• [BUG] org.opensearch.remotestore.RemoteRestoreSnapshotIT.testRestoreShallowSnapshotIndexAfterSnapshot is flaky #11155
• [BUG] org.opensearch.search.query.SearchQueryIT.testCommonTermsQuery is flaky for concurrent search as well as non-concurrent search case. #11208

[github-actions]

❕ Gradle check result for 84688b1: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.index.reindex.DeleteByQueryBasicTests.testDeleteByQueryWithMultipleIndices

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3ff7e97) 71.15% compared to head (84688b1) 71.25%.
Report is 9 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #11207      +/-   ##
============================================
+ Coverage     71.15%   71.25%   +0.09%     
- Complexity    58783    58815      +32     
============================================
  Files          4885     4885              
  Lines        277199   277199              
  Branches      40285    40285              
============================================
+ Hits         197247   197517     +270     
+ Misses        63448    63142     -306     
- Partials      16504    16540      +36     

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