opensearch-project/opensearch-java

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Java Client for OpenSearch

Stars: 165
Forks: 250
Open beginner issues: 0
Indexed issues: 143
Avg merge: 1d 18h
Merged PRs (30d): 26

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

143 open issues indexed

[BUG] match_only_text does not return analyzer and search_analyzer Open

bug untriaged

Difficulty 3/5 1-2 days Newbie friendliness 68/100

opensearch-project/opensearch-java#2159 · Opened Sep 16, 2026
[BUG] MissingRequiredPropertyException: Missing required property 'ForcemergeResponse.shards' Open

bug untriaged

Difficulty 3/5 1-2 days Newbie friendliness 68/100

opensearch-project/opensearch-java#2147 · 1 comment · Opened Sep 8, 2026
[BUG] searchShards fails on Managed OpenSearch servers that omit node metadata Open

bug untriaged

Difficulty 4/5 3-5 days Newbie friendliness 68/100

opensearch-project/opensearch-java#2145 · Opened Sep 5, 2026
[FEATURE] Add search_pipeline support to opensearch-java Open

enhancement untriaged

Difficulty 4/5 3-5 days Newbie friendliness 58/100

opensearch-project/opensearch-java#2137 · Opened Sep 1, 2026
gRPC transport: typed search silently deserializes hits as Object.class, causing ClassCastException on source access Open

untriaged

Difficulty 4/5 3-5 days Newbie friendliness 55/100

opensearch-project/opensearch-java#2123 · Opened Aug 24, 2026
[FEATURE] Add JMH Benchmark Module Open

enhancement untriaged

Difficulty 4/5 3-5 days Newbie friendliness 55/100

opensearch-project/opensearch-java#2110 · 6 comments · Opened Aug 18, 2026
[FEATURE] Adaptive maxOperations for BulkInjester Open

enhancement untriaged

Difficulty 5/5 Over a week Newbie friendliness 38/100

opensearch-project/opensearch-java#2109 · 8 comments · 1 reaction · Opened Aug 18, 2026
[FEATURE] Add `search_pipeline` support to `_msearch` via `MultisearchBody` Open

enhancement untriaged

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

opensearch-project/opensearch-java#2061 · Opened Jul 13, 2026
Backport workflow-hardening fix (excessive-permissions) to 5 release branches Open

untriaged

Difficulty 3/5 1-2 days Newbie friendliness 78/100

opensearch-project/opensearch-java#2024 · Opened Jun 29, 2026
[BUG] "shape" should not be required in GeoShapeQueryField Open

bug untriaged

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

opensearch-project/opensearch-java#2011 · 2 comments · Opened Jun 19, 2026
[BUG] MissingRequiredPropertyException: Missing required property 'ResourceStats.average' when polling _tasks API Open

untriaged

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

opensearch-project/opensearch-java#2008 · Opened Jun 15, 2026
[BUG]ApacheHttpClient5Transport enters unrecoverable state after IOReactorShutdownException Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

opensearch-project/opensearch-java#1969 · 2 comments · Opened Apr 21, 2026
[BUG] Client is unable to deserialize search response with profile API enabled Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

opensearch-project/opensearch-java#1965 · 5 comments · Opened Apr 14, 2026
[BUG] How to sort by a sub-aggregation field in multi_terms aggregation using opensearch-java 3.1.0? Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

opensearch-project/opensearch-java#1964 · 2 comments · Opened Apr 13, 2026
[BUG] DerivedField contains additional unsupported `name` parameter Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

opensearch-project/opensearch-java#1937 · 2 comments · Opened Mar 23, 2026
[FEATURE] Introduce a mechanism for detecting and incorporating breaking changes from spec in a backward compatible way Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

opensearch-project/opensearch-java#1927 · 1 comment · Opened Mar 11, 2026
document updating the OpenAPI spec Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

opensearch-project/opensearch-java#1915 · 1 comment · Opened Mar 5, 2026
[BUG] ISM types lastUpdatedTime is susceptible to int overflow Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

opensearch-project/opensearch-java#1898 · 3 comments · Opened Feb 26, 2026
[BUG] Inconsistent use for 409 exceptions Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opensearch-project/opensearch-java#1891 · 1 comment · Opened Feb 19, 2026
[BUG]Missing required property 'PluginStats.opensearchVersion' when using NodesInfoResponse response = client.nodes().info(); Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

opensearch-project/opensearch-java#1866 · 3 comments · Opened Feb 3, 2026
[BUG] Composite DateAggregation silently drops deprecated interval parameter, which is an acceptable param on server side, client side for DateAggregation Open

bug

opensearch-project/opensearch-java#1834 · 2 comments · 1 assignee · Opened Dec 17, 2025
[BUG] `required` spec not respected for maps and lists Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 54/100

opensearch-project/opensearch-java#1813 · 8 comments · Opened Dec 12, 2025
[BUG] ShardFailure hides real failure if ApiTypeHelper assertion fails Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

opensearch-project/opensearch-java#1799 · 3 comments · Opened Nov 19, 2025
[FEATURE] add semantic field type Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

opensearch-project/opensearch-java#1798 · 2 comments · Opened Nov 18, 2025
[BUG] Indices with a PathHierarchyTokenizer without optional config params cannot be deserialized Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

opensearch-project/opensearch-java#1797 · 3 comments · Opened Nov 18, 2025
Field capabilities request is invalid Open

bug

opensearch-project/opensearch-java#1792 · 2 comments · 1 assignee · Opened Nov 12, 2025
Cluster state response strongly typed Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

opensearch-project/opensearch-java#1791 · 1 comment · Opened Nov 12, 2025
[FEATURE] Hybrid query filter support in java client Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

opensearch-project/opensearch-java#1785 · 3 comments · Opened Nov 7, 2025
[BUG] AwsSdk2Transport doesn't work with AwsSdk below 2.25.0 Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 48/100

opensearch-project/opensearch-java#1783 · 1 comment · Opened Nov 6, 2025
[FEATURE] Support Semantic field type Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1778 · 1 comment · Opened Nov 2, 2025
[FEATURE] Support predict API, it is missing although is in the API spec Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

opensearch-project/opensearch-java#1777 · 1 comment · Opened Nov 2, 2025
[FEATURE] Add support for Derived Fields Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1766 · 4 comments · Opened Oct 23, 2025
[BUG] minIndexAge, minPrimaryShardSize and other such params are of type 'Number' but should be string Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1747 · 3 comments · Opened Oct 6, 2025
SearchRequest.searchAfter appends values instead of replacing: Bug or By Design? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

opensearch-project/opensearch-java#1739 · 1 comment · Opened Sep 26, 2025
[BUG] Error parsing search response aggregation, property name 'doc_count_error_upper_bound' is not in the 'type#name' format. Make sure the request has 'typed_keys' set. Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1737 · 1 comment · Opened Sep 23, 2025
[QUESTION] toJsonString() with Java 8 time module Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

opensearch-project/opensearch-java#1730 · 1 comment · Opened Sep 22, 2025
[BUG] Getting 0 results with filter_path fails to deserialize Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

opensearch-project/opensearch-java#1729 · 4 comments · Opened Sep 17, 2025
[FEATURE] Add translog.retention.size to high-level IndexSettings builder Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

opensearch-project/opensearch-java#1722 · 1 comment · Opened Sep 4, 2025
[BUG] ISM API - Put Policies: `java.lang.RuntimeException: Jackson exception: Numeric value out of range of int (-2147483648 - 2147483647)` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

opensearch-project/opensearch-java#1717 · 3 comments · Opened Aug 23, 2025
[FEATURE] Add GRPC/Protobuf support to Java client Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

opensearch-project/opensearch-java#1709 · 3 comments · Opened Aug 15, 2025
[BUG] Inconsistent priority field type between PutIndexTemplateRequest and IndexTemplate models Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

opensearch-project/opensearch-java#1702 · Opened Jul 31, 2025
[BUG]why OpenSearchGenericClient.withTransportOptions(TransportOptions transportOptions) create a new OpenSearchGenericClient object? Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

opensearch-project/opensearch-java#1694 · Opened Jul 18, 2025
[BUG] Missing Neural Sparse Support in Java Client (Query.java and Processor.java) Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

opensearch-project/opensearch-java#1673 · 2 comments · Opened Jul 9, 2025
[FEATURE] Allow Response Objects and Exceptions to Access Http Response Headers Open

enhancement

opensearch-project/opensearch-java#1647 · 9 comments · 3 reactions · 1 assignee · Opened Jun 25, 2025
`ClientTlsStrategyBuilder#setTlsDetailsFactory` is deprecated Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opensearch-project/opensearch-java#1613 · Opened Jun 10, 2025
Connect timeout is not triggering as expected when set in ConnectionConfig Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

opensearch-project/opensearch-java#1581 · 3 comments · Opened May 28, 2025
[FEATURE] Improve Gradle release version logic Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1569 · Opened May 16, 2025
Sort field missing in response when using search_after for pagination with Java Client Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

opensearch-project/opensearch-java#1550 · 1 comment · Opened May 8, 2025
[FEATURE] `BoolQuery`: provide methods with varargs query builders Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1548 · 2 comments · Opened May 6, 2025
[FEATURE] HtmlStripProcessor Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opensearch-project/opensearch-java#1538 · 1 comment · Opened Apr 28, 2025

opensearch-project/opensearch-java

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