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fix: Gate internal ignore settings on remote data attributes in restore - #22570

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piyushk6130:fix-ignore-settings-gate-remote-publication
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fix: Gate internal ignore settings on remote data attributes in restore#22570
piyushk6130 wants to merge 1 commit into
opensearch-project:mainfrom
piyushk6130:fix-ignore-settings-gate-remote-publication

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The internal ignore settings (index.remote_store.) are only applied during snapshot restore when the cluster is considered non-remote-store. This check used isRemoteStoreAttributePresent(), which also matches remote_publication. node attributes. Clusters with only remote cluster state / routing table publication enabled do not store index data remotely, but were wrongly treated as remote store clusters, so stale remote store index settings from the snapshot were never stripped.

Such stale settings later fail shard recovery with RepositoryMissingException when the referenced repositories do not exist on the cluster.

Gate the internal ignore settings on isRemoteDataAttributePresent() (segment/translog repository attributes) instead, and extract the logic into a static method for testability.

Description

[Describe what this change achieves]

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

  • Functionality includes testing.
  • API changes companion pull request created, if applicable.
  • Public documentation issue/PR created, if applicable.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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The internal ignore settings (index.remote_store.*) are only applied
during snapshot restore when the cluster is considered non-remote-store.
This check used isRemoteStoreAttributePresent(), which also matches
remote_publication.* node attributes. Clusters with only remote cluster
state / routing table publication enabled do not store index data
remotely, but were wrongly treated as remote store clusters, so stale
remote store index settings from the snapshot were never stripped.

Such stale settings later fail shard recovery with
RepositoryMissingException when the referenced repositories do not
exist on the cluster.

Gate the internal ignore settings on isRemoteDataAttributePresent()
(segment/translog repository attributes) instead, and extract the
logic into a static method for testability.

Signed-off-by: Piyush Kumar <piykumab@amazon.com>
@piyushk6130
piyushk6130 requested a review from a team as a code owner July 27, 2026 05:07
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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🧪 PR contains tests
🔒 No security concerns identified
✅ No TODO sections
🔀 No multiple PR themes
⚡ No major issues detected

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✅ Gradle check result for 9abf419: SUCCESS

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codecov Bot commented Jul 27, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.35%. Comparing base (08eb405) to head (9abf419).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files
@@             Coverage Diff              @@
##               main   #22570      +/-   ##
============================================
- Coverage     71.45%   71.35%   -0.10%     
+ Complexity    76760    76703      -57     
============================================
  Files          6136     6142       +6     
  Lines        357635   357762     +127     
  Branches      52128    52148      +20     
============================================
- Hits         255532   255296     -236     
- Misses        81755    82095     +340     
- Partials      20348    20371      +23     

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