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Service Layer changes for Recommission API

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Signed-off-by: pranikum ### Description This PR contains the service layer change for Recommission API. Changes for Recommission Service layer API Files to review as part of this PR: https://github.com/opensearch-project/OpenSearch/pull/4320/files#diff-7244ca64dd959da0d639b8c14cb005b0e2c0ccbd08c4512d29efd24e01f88222 https://github.com/opensearch-project/OpenSearch/pull/4320/files#diff-90b6fea36378485a80bb70d3374844825e20774c8790ef7930f59f31e651ea9f...

pranikum

Idempotency for mostly append-only indexes/streams

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**Background** Document id serves as a primary key in an Opensearch index. The distribution of the document across shards is based on the document id. Opensearch ensures idempotency on the...

itiyama

REST API Layer changes for recommission support

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Signed-off-by: pranikum ### Description This change contain REST API layer changes for Recommission API support. This pr is dependent of Service layer changes. (https://github.com/opensearch-project/OpenSearch/pull/4320) This change has some changes for...

pranikum

Discussion on combination of result sets from different query types

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Recently, from k-NN, we have received interest in combining results from text matching queries with k-NN queries ([ref](https://github.com/opensearch-project/k-NN/issues/527)). So, I wanted to start a discussion about result combination and the...

jmazanec15

[Feature/extensions] Adding support for Extension Create Components [environment settings and add setting update consumers]

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### Description Adds support for extensions to request environment setting values from opensearch, to add setting update consumers to cluster settings, and to receive update setting requests from Opensearch whenever...

joshpalis

[Gradle Check Retry] Publish/Record tests which pass after a retry to address flakiness

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**Is your feature request related to a problem? Please describe.** - `gradle check` test failures are now retried as a part of https://github.com/opensearch-project/OpenSearch/pull/2638 - This issue addresses the scenarios where...

kotwanikunal

**Is your feature request related to a problem? Please describe.** To move forward with Anomaly Detection backend plugin as an extension, we plan to start with creating a detector as...

owaiskazi19

[Feature/Extensions] Created new Request class for ActionListener onFailure

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### Description Created new Request class for ActionListener onFailure Companion PR on opensearch-sdk-java: https://github.com/opensearch-project/opensearch-sdk-java/pull/141 ### Issues Resolved [#135](https://github.com/opensearch-project/opensearch-sdk-java/issues/135) ### Check List - [ X] New functionality includes testing. - [...

ryanbogan

[Backport 2.x] add support for s390x architecture

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Backport 517c19c9725e53663a280f9025679c2f9e659948 from #4001

opensearch-trigger-bot[bot]

Add experimental support for zstd and lz4 (native) compression algorithms.

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This PR adds experimental support for lz4 (native) and zstd (with and without dictionary) compression algorithms. The rationale for adding this support is discussed here: https://github.com/opensearch-project/OpenSearch/issues/3354. Users would be able...

mulugetam