elastic/elasticsearch Issues | Good First Issue

Stars: (76,700 stars)
Forks: (25,882 forks)
Indexed issues: (101 indexed issues)
open beginner issues: (99 open beginner issues)
Latest indexed: Jun 30, 2026
Last GitHub push: May 15, 2026
License: Other
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Dominant language: Java
PR merge metrics: (Avg merge 2d 5h) (1,000 merged PRs in 30d)
Beginner labels: help wantedgood first issue

Issues

99 open indexed issues

RSS Atom

Open

SecurityMigrationExecutor and SystemIndexMigrationExecutor should not be persistent tasks

:Distributed/DistributedTeam:Distributedgood first issue

elastic/elasticsearch #146,662 opened Apr 17, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

4 comments0 reactions0 assignees

Open

Make SnapshotHistoryStore retry indexing history data on EsRejectedExecutionException

:Distributed/SLM>bugTeam:Distributedgood first issue

elastic/elasticsearch #141,887 opened Feb 4, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

7 comments0 reactions0 assignees

Open

[ML] Report actual memory usage for trained model deployments in TrainedModelSizeStats

:ml>enhancementTeam:MLgood first issue

elastic/elasticsearch #139,233 opened Dec 9, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

6 comments0 reactions0 assignees

Open

Add columns CAT Shards for _tier_preference and node.roles

:Core/Infra/CAT APIs>enhancementTeam:Core/Infragood first issue

elastic/elasticsearch #136,895 opened Oct 21, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

8 comments0 reactions0 assignees

Open

ESQL should support a humanize option to quickly render values in human readable way.

:Analytics/ES|QL>enhancementTeam:Analyticsgood first issue

elastic/elasticsearch #136,533 opened Oct 14, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments0 reactions0 assignees

Open

Source filtering fails for nested fields under backslash-named parent field

:Search Foundations/Search>bugTeam:Search Foundationshelp wanted

elastic/elasticsearch #136,302 opened Oct 9, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

2 comments0 reactions0 assignees

Open

ES|QL: Push down mv_contains as a lucene query

:Analytics/ES|QL>enhancementTeam:Analyticsgood first issue

elastic/elasticsearch #134,529 opened Sep 11, 2025 · Java · 76,700 stars

Why recommendedMarked good first issue · Contributing guide available

Marked good first issueContributing guide available

3 comments0 reactions1 assignee

Open

Add a checkCancelled public method to ContextIndexSearcher

:Search Foundations/Search>enhancementTeam:Search Foundationshelp wanted

elastic/elasticsearch #121,349 opened Jan 30, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

5 comments0 reactions0 assignees

Open

Detect when copying to a non-existent field when dynamic mappings are disabled

:Search Foundations/Mapping:Search Relevance/Search>enhancementTeam:Search FoundationsTeam:Search Relevancegood first issue

elastic/elasticsearch #112,812 opened Sep 12, 2024 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

20 comments0 reactions0 assignees

Open

`_field_caps` with `types` query parameter returns also `objects` types if it's a parent of a requested type

:Search Foundations/Mapping>bugTeam:Search Foundationsgood first issuepriority:normal

elastic/elasticsearch #109,797 opened Jun 17, 2024 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

3 comments0 reactions0 assignees

Open

Share number based field mapper test code with other modules

:Search Foundations/Mapping>testTeam:Search Foundationsgood first issue

elastic/elasticsearch #92,947 opened Jan 16, 2023 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments2 reactions0 assignees

Open

Expand runtime_field data types to include ranges

:Search Foundations/Mapping>enhancementTeam:Search Foundationsgood first issuehelp wanted

elastic/elasticsearch #89,707 opened Aug 29, 2022 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments2 reactions0 assignees

Open

Add resource ID to 404 response body

:Core/Infra/Core>enhancementTeam:Core/Infrahelp wanted

elastic/elasticsearch #82,675 opened Jan 17, 2022 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

14 comments0 reactions0 assignees

Open

we should add monitor about whether the netty worker thread pool are busy or not

:Distributed/Network>enhancementTeam:Distributedhelp wanted

elastic/elasticsearch #80,340 opened Nov 4, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

13 comments0 reactions0 assignees

Open

ETA for Reindex API

:Distributed/Reindex>enhancementTeam:Distributedhelp wanted

elastic/elasticsearch #76,904 opened Aug 25, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

2 comments0 reactions0 assignees

Open

Provide better error messages on search request parse failures

:Search Relevance/Search>enhancementTeam:Search Relevancegood first issuehelp wanted

elastic/elasticsearch #75,441 opened Jul 19, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

19 comments0 reactions0 assignees

Open

API to return global state from a snapshot

:Distributed/Snapshot/Restore>enhancementTeam:Distributedgood first issue

elastic/elasticsearch #73,248 opened May 19, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

27 comments1 reaction0 assignees

Open

Taking a snapshot of an index closed prior to 7.2.0 fails with a NPE in 7.11.2

:Distributed/Snapshot/Restore>bugTeam:Distributedgood first issuehelp wanted

elastic/elasticsearch #70,676 opened Mar 22, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

24 comments0 reactions0 assignees

Open

Hex numbers in YAML requests are treated as strings

:Core/Infra/REST API>bugTeam:Core/Infrahelp wanted

elastic/elasticsearch #66,555 opened Dec 17, 2020 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

6 comments0 reactions0 assignees

Open

Improve logging for circuit breakers

:Core/Infra/Circuit Breakers:Core/Infra/Logging>enhancementTeam:Core/Infrahelp wanted

elastic/elasticsearch #62,452 opened Sep 16, 2020 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

8 comments0 reactions0 assignees

Stars: (76,700 stars)
Forks: (25,882 forks)
Indexed issues: (101 indexed issues)
open beginner issues: (99 open beginner issues)
Latest indexed: Jun 30, 2026
Last GitHub push: May 15, 2026
License: Other
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Dominant language: Java
PR merge metrics: (Avg merge 2d 5h) (1,000 merged PRs in 30d)
Beginner labels: help wantedgood first issue

Issues

99 open indexed issues

RSS Atom

Open

SecurityMigrationExecutor and SystemIndexMigrationExecutor should not be persistent tasks

:Distributed/DistributedTeam:Distributedgood first issue

elastic/elasticsearch #146,662 opened Apr 17, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

4 comments0 reactions0 assignees

Open

Make SnapshotHistoryStore retry indexing history data on EsRejectedExecutionException

:Distributed/SLM>bugTeam:Distributedgood first issue

elastic/elasticsearch #141,887 opened Feb 4, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

7 comments0 reactions0 assignees

Open

[ML] Report actual memory usage for trained model deployments in TrainedModelSizeStats

:ml>enhancementTeam:MLgood first issue

elastic/elasticsearch #139,233 opened Dec 9, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

6 comments0 reactions0 assignees

Open

Add columns CAT Shards for _tier_preference and node.roles

:Core/Infra/CAT APIs>enhancementTeam:Core/Infragood first issue

elastic/elasticsearch #136,895 opened Oct 21, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

8 comments0 reactions0 assignees

Open

ESQL should support a humanize option to quickly render values in human readable way.

:Analytics/ES|QL>enhancementTeam:Analyticsgood first issue

elastic/elasticsearch #136,533 opened Oct 14, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments0 reactions0 assignees

Open

Source filtering fails for nested fields under backslash-named parent field

:Search Foundations/Search>bugTeam:Search Foundationshelp wanted

elastic/elasticsearch #136,302 opened Oct 9, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

2 comments0 reactions0 assignees

Open

ES|QL: Push down mv_contains as a lucene query

:Analytics/ES|QL>enhancementTeam:Analyticsgood first issue

elastic/elasticsearch #134,529 opened Sep 11, 2025 · Java · 76,700 stars

Why recommendedMarked good first issue · Contributing guide available

Marked good first issueContributing guide available

3 comments0 reactions1 assignee

Open

Add a checkCancelled public method to ContextIndexSearcher

:Search Foundations/Search>enhancementTeam:Search Foundationshelp wanted

elastic/elasticsearch #121,349 opened Jan 30, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

5 comments0 reactions0 assignees

Open

Detect when copying to a non-existent field when dynamic mappings are disabled

:Search Foundations/Mapping:Search Relevance/Search>enhancementTeam:Search FoundationsTeam:Search Relevancegood first issue

elastic/elasticsearch #112,812 opened Sep 12, 2024 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

20 comments0 reactions0 assignees

Open

`_field_caps` with `types` query parameter returns also `objects` types if it's a parent of a requested type

:Search Foundations/Mapping>bugTeam:Search Foundationsgood first issuepriority:normal

elastic/elasticsearch #109,797 opened Jun 17, 2024 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

3 comments0 reactions0 assignees

Open

Share number based field mapper test code with other modules

:Search Foundations/Mapping>testTeam:Search Foundationsgood first issue

elastic/elasticsearch #92,947 opened Jan 16, 2023 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments2 reactions0 assignees

Open

Expand runtime_field data types to include ranges

:Search Foundations/Mapping>enhancementTeam:Search Foundationsgood first issuehelp wanted

elastic/elasticsearch #89,707 opened Aug 29, 2022 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments2 reactions0 assignees

Open

Add resource ID to 404 response body

:Core/Infra/Core>enhancementTeam:Core/Infrahelp wanted

elastic/elasticsearch #82,675 opened Jan 17, 2022 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

14 comments0 reactions0 assignees

Open

we should add monitor about whether the netty worker thread pool are busy or not

:Distributed/Network>enhancementTeam:Distributedhelp wanted

elastic/elasticsearch #80,340 opened Nov 4, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

13 comments0 reactions0 assignees

Open

ETA for Reindex API

:Distributed/Reindex>enhancementTeam:Distributedhelp wanted

elastic/elasticsearch #76,904 opened Aug 25, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

2 comments0 reactions0 assignees

Open

Provide better error messages on search request parse failures

:Search Relevance/Search>enhancementTeam:Search Relevancegood first issuehelp wanted

elastic/elasticsearch #75,441 opened Jul 19, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

19 comments0 reactions0 assignees

Open

API to return global state from a snapshot

:Distributed/Snapshot/Restore>enhancementTeam:Distributedgood first issue

elastic/elasticsearch #73,248 opened May 19, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

27 comments1 reaction0 assignees

Open

Taking a snapshot of an index closed prior to 7.2.0 fails with a NPE in 7.11.2

:Distributed/Snapshot/Restore>bugTeam:Distributedgood first issuehelp wanted

elastic/elasticsearch #70,676 opened Mar 22, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

24 comments0 reactions0 assignees

Open

Hex numbers in YAML requests are treated as strings

:Core/Infra/REST API>bugTeam:Core/Infrahelp wanted

elastic/elasticsearch #66,555 opened Dec 17, 2020 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

6 comments0 reactions0 assignees

Open

Improve logging for circuit breakers

:Core/Infra/Circuit Breakers:Core/Infra/Logging>enhancementTeam:Core/Infrahelp wanted

elastic/elasticsearch #62,452 opened Sep 16, 2020 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

8 comments0 reactions0 assignees

Stars: (76,700 stars)
Forks: (25,882 forks)
Indexed issues: (101 indexed issues)
open beginner issues: (99 open beginner issues)
Latest indexed: Jun 30, 2026
Last GitHub push: May 15, 2026
License: Other
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Dominant language: Java
PR merge metrics: (Avg merge 2d 5h) (1,000 merged PRs in 30d)
Beginner labels: help wantedgood first issue

Issues

99 open indexed issues

RSS Atom

Open

SecurityMigrationExecutor and SystemIndexMigrationExecutor should not be persistent tasks

:Distributed/DistributedTeam:Distributedgood first issue

elastic/elasticsearch #146,662 opened Apr 17, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

4 comments0 reactions0 assignees

Open

Make SnapshotHistoryStore retry indexing history data on EsRejectedExecutionException

:Distributed/SLM>bugTeam:Distributedgood first issue

elastic/elasticsearch #141,887 opened Feb 4, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

7 comments0 reactions0 assignees

Open

[ML] Report actual memory usage for trained model deployments in TrainedModelSizeStats

:ml>enhancementTeam:MLgood first issue

elastic/elasticsearch #139,233 opened Dec 9, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

6 comments0 reactions0 assignees

Open

Add columns CAT Shards for _tier_preference and node.roles

:Core/Infra/CAT APIs>enhancementTeam:Core/Infragood first issue

elastic/elasticsearch #136,895 opened Oct 21, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

8 comments0 reactions0 assignees

Open

ESQL should support a humanize option to quickly render values in human readable way.

:Analytics/ES|QL>enhancementTeam:Analyticsgood first issue

elastic/elasticsearch #136,533 opened Oct 14, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments0 reactions0 assignees

Open

Source filtering fails for nested fields under backslash-named parent field

:Search Foundations/Search>bugTeam:Search Foundationshelp wanted

elastic/elasticsearch #136,302 opened Oct 9, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

2 comments0 reactions0 assignees

Open

ES|QL: Push down mv_contains as a lucene query

:Analytics/ES|QL>enhancementTeam:Analyticsgood first issue

elastic/elasticsearch #134,529 opened Sep 11, 2025 · Java · 76,700 stars

Why recommendedMarked good first issue · Contributing guide available

Marked good first issueContributing guide available

3 comments0 reactions1 assignee

Open

Add a checkCancelled public method to ContextIndexSearcher

:Search Foundations/Search>enhancementTeam:Search Foundationshelp wanted

elastic/elasticsearch #121,349 opened Jan 30, 2025 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

5 comments0 reactions0 assignees

Open

Detect when copying to a non-existent field when dynamic mappings are disabled

:Search Foundations/Mapping:Search Relevance/Search>enhancementTeam:Search FoundationsTeam:Search Relevancegood first issue

elastic/elasticsearch #112,812 opened Sep 12, 2024 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

20 comments0 reactions0 assignees

Open

`_field_caps` with `types` query parameter returns also `objects` types if it's a parent of a requested type

:Search Foundations/Mapping>bugTeam:Search Foundationsgood first issuepriority:normal

elastic/elasticsearch #109,797 opened Jun 17, 2024 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

3 comments0 reactions0 assignees

Open

Share number based field mapper test code with other modules

:Search Foundations/Mapping>testTeam:Search Foundationsgood first issue

elastic/elasticsearch #92,947 opened Jan 16, 2023 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments2 reactions0 assignees

Open

Expand runtime_field data types to include ranges

:Search Foundations/Mapping>enhancementTeam:Search Foundationsgood first issuehelp wanted

elastic/elasticsearch #89,707 opened Aug 29, 2022 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

17 comments2 reactions0 assignees

Open

Add resource ID to 404 response body

:Core/Infra/Core>enhancementTeam:Core/Infrahelp wanted

elastic/elasticsearch #82,675 opened Jan 17, 2022 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

14 comments0 reactions0 assignees

Open

we should add monitor about whether the netty worker thread pool are busy or not

:Distributed/Network>enhancementTeam:Distributedhelp wanted

elastic/elasticsearch #80,340 opened Nov 4, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

13 comments0 reactions0 assignees

Open

ETA for Reindex API

:Distributed/Reindex>enhancementTeam:Distributedhelp wanted

elastic/elasticsearch #76,904 opened Aug 25, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

2 comments0 reactions0 assignees

Open

Provide better error messages on search request parse failures

:Search Relevance/Search>enhancementTeam:Search Relevancegood first issuehelp wanted

elastic/elasticsearch #75,441 opened Jul 19, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

19 comments0 reactions0 assignees

Open

API to return global state from a snapshot

:Distributed/Snapshot/Restore>enhancementTeam:Distributedgood first issue

elastic/elasticsearch #73,248 opened May 19, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

27 comments1 reaction0 assignees

Open

Taking a snapshot of an index closed prior to 7.2.0 fails with a NPE in 7.11.2

:Distributed/Snapshot/Restore>bugTeam:Distributedgood first issuehelp wanted

elastic/elasticsearch #70,676 opened Mar 22, 2021 · Java · 76,700 stars

Why recommendedNo assignee yet · Marked good first issue

No assignee yetMarked good first issueContributing guide available

24 comments0 reactions0 assignees

Open

Hex numbers in YAML requests are treated as strings

:Core/Infra/REST API>bugTeam:Core/Infrahelp wanted

elastic/elasticsearch #66,555 opened Dec 17, 2020 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

6 comments0 reactions0 assignees

Open

Improve logging for circuit breakers

:Core/Infra/Circuit Breakers:Core/Infra/Logging>enhancementTeam:Core/Infrahelp wanted

elastic/elasticsearch #62,452 opened Sep 16, 2020 · Java · 76,700 stars

Why recommendedNo assignee yet · Contributing guide available

No assignee yetContributing guide available

8 comments0 reactions0 assignees

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