JanusGraph/janusgraph

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JanusGraph: an open-source, distributed graph database

Stars: 5.8k
Forks: 1.2k
Open beginner issues: 5
Indexed issues: 520
Avg merge: 13h 53m
Merged PRs (30d): 6

Dominant language: Java
License: No license data
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue hacktoberfest

Beginner friendly Everything

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520 open issues indexed

Add Janus Studio to the Visualization section Open

Difficulty 1/5 Under an hour Newbie friendliness 95/100

JanusGraph/janusgraph#4943 · Opened Aug 21, 2026
Potential Vulnerabilities Due To Hidden Dependencies Open

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

JanusGraph/janusgraph#4934 · Opened Aug 11, 2026
SubqueryIterator uses List.contains for index intersection, giving O(n*m) on an intentionally unbounded list Open

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

JanusGraph/janusgraph#4932 · Opened Aug 11, 2026
Joint-index subquery cache stores limit-truncated results as complete, causing silently missing results Open

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

JanusGraph/janusgraph#4931 · Opened Aug 11, 2026
updateIndex on a mixed index fails an unrelated precondition when no key is in an applicable status Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

JanusGraph/janusgraph#4930 · Opened Aug 11, 2026
RestElasticSearchClient.clearStore does not lowercase the store name, so DISCARD_INDEX cannot delete data for mixed-case index names Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

JanusGraph/janusgraph#4929 · Opened Aug 11, 2026
IndexSerializer.removeElement rejects String element ids, breaking mixed-index recovery for custom vertex id types Open

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

JanusGraph/janusgraph#4928 · Opened Aug 11, 2026
MixedIndexTypeWrapper.fields is a non-volatile lazily-initialised array, allowing unsafe publication Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

JanusGraph/janusgraph#4927 · 1 reaction · Opened Aug 11, 2026
Elasticsearch: bulk items failing with HTTP 404 are silently discarded, so updates to a missing document are dropped permanently Open

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

JanusGraph/janusgraph#4926 · Opened Aug 7, 2026
Elasticsearch: transient failures classified as PermanentBackendException, so index mutations are silently dropped instead of retried Open

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

JanusGraph/janusgraph#4925 · 1 comment · Opened Aug 7, 2026
Edge materialization from a mixed index scans the full adjacency when the edge label has a sort key (seek is defeated) Open

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

JanusGraph/janusgraph#4923 · 1 comment · Opened Jul 24, 2026
Janusgraph upgrade to 1.1.0 Open

kind/bug/possible

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

JanusGraph/janusgraph#4889 · 2 comments · Opened Jan 12, 2026
match()-step returns false results Open

kind/bug/possible

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

JanusGraph/janusgraph#4888 · Opened Jan 6, 2026
Feature Request: OpenSearch v2 and v3 Support Open

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

JanusGraph/janusgraph#4887 · 3 comments · 1 reaction · Opened Nov 23, 2025
bug: ids.authority.wait-time=3000 does not have any effect at all Open

kind/bug/possible

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

JanusGraph/janusgraph#4883 · Opened Nov 15, 2025
Proposal: Implement Distributed Balanced Partitioning via Linear Embedding (DBP-LE) Open

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

JanusGraph/janusgraph#4875 · 1 reaction · Opened Oct 30, 2025
Janus 1.1 upgrade from 0.6.4 - Drop step executes, transaction commited, but vertex still exists. Open

kind/bug/possible

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

JanusGraph/janusgraph#4867 · 2 comments · Opened Oct 20, 2025
Connect to Astra DB - Token authentication Open

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

JanusGraph/janusgraph#4856 · 1 comment · Opened Sep 25, 2025
Elastic search client certificate format Open

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

JanusGraph/janusgraph#4840 · Opened Aug 25, 2025
JanusGraph query empty result restart Open

kind/bug/possible

Difficulty 5/5 Over a week Newbie friendliness 20/100

JanusGraph/janusgraph#4824 · 1 comment · Opened Aug 7, 2025
Using as() step is slowing down Gremlin Query dramatically Open

kind/bug/possible

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

JanusGraph/janusgraph#4803 · Opened Jun 26, 2025
Relation Property Index not utilized with Subgraph Strategy Open

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

JanusGraph/janusgraph#4801 · Opened Jun 12, 2025
Use BM25 score from Elasticsearch to order results Open

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

JanusGraph/janusgraph#4799 · 1 comment · Opened Jun 5, 2025
Incorrect OR evaluation in JanusGraphStep Open

kind/bug/possible

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

JanusGraph/janusgraph#4786 · Opened Apr 23, 2025
storage.transactions=false with berkeleyje backend prevents any write operation Open

kind/bug/possible

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

JanusGraph/janusgraph#4781 · 1 reaction · Opened Mar 21, 2025
Would like documentation to cover how to call Janusgraph with websocat Open

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

JanusGraph/janusgraph#4779 · Opened Mar 17, 2025
janusgraph.graph.set-vertex-id not working with latest docker image Open

kind/bug/possible

Difficulty 4/5 3-5 days Newbie friendliness 42/100

JanusGraph/janusgraph#4778 · Opened Mar 17, 2025
Add Apache Iceberg backend Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JanusGraph/janusgraph#4772 · 1 reaction · Opened Feb 25, 2025
Updating the `docker-compose-cql-es.yml` Open

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

JanusGraph/janusgraph#4763 · 2 comments · Opened Feb 6, 2025
.net driver doesn't connect new graph traversal source Open

kind/bug/possible

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

JanusGraph/janusgraph#4749 · 2 reactions · Opened Jan 8, 2025
After execute ConfiguredGraphFactory.drop(graphName),janusgraph log print TableNotFoundException Open

kind/bug/possible

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

JanusGraph/janusgraph#4746 · Opened Dec 29, 2024
Ability to set the fuzziness' edit distance when using text predicates in janusgraph Open

kind/enhancement

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

JanusGraph/janusgraph#4737 · Opened Nov 27, 2024
UUID property isn't compared correctly when used in a long query Open

kind/bug/possible

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

JanusGraph/janusgraph#4731 · 1 comment · 2 reactions · Opened Nov 15, 2024
Restoring Cassandra from snapshot getting an Error, and discrepancy in the node count after restoring the data Open

kind/bug/possible

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

JanusGraph/janusgraph#4724 · Opened Nov 11, 2024
Janusgraph bigtable rows exceeds the limit 256MiB when exported via Dataflow in Parquet format Open

kind/bug/possible

Difficulty 5/5 Over a week Newbie friendliness 20/100

JanusGraph/janusgraph#4704 · Opened Oct 24, 2024
High Memory Pressure In RestElasticSearchClient Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

JanusGraph/janusgraph#4684 · 1 comment · Opened Sep 26, 2024
unable to canonicalize address xxx:2181 because it's not resolvable Open

kind/bug/possible

Difficulty 3/5 1-2 days Newbie friendliness 30/100

JanusGraph/janusgraph#4668 · 2 comments · Opened Sep 1, 2024
Flaky HBase OLAP test: testVertexPartitionOlapCluster Open

storage/hbase testing/flaky

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

JanusGraph/janusgraph#4595 · Opened Jul 29, 2024
Option storage.cql.protocol-version is broken Open

kind/bug/possible

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

JanusGraph/janusgraph#4583 · Opened Jul 25, 2024
When a global property is used and the index is global, and the property has its own unique index in each label, the query is abnormal. Open

kind/bug/possible

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

JanusGraph/janusgraph#4511 · 1 comment · Opened Jun 12, 2024
Vulnerabilities in JanusGraph dependencies Open

kind/bug/possible

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

JanusGraph/janusgraph#4486 · 1 comment · Opened May 27, 2024
Custom Vertex Id (string) on non-existent vertex returns a new vertex Open

area/core kind/bug/possible

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

JanusGraph/janusgraph#4433 · 7 comments · Opened May 3, 2024
Concerning warnings about missing classes when using JanusGraph 1.0.0 with CQL in embedded mode Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

JanusGraph/janusgraph#4363 · 2 comments · 1 reaction · Opened Apr 10, 2024
QueryBackPressureTest regularly times out on GHA Open

testing/flaky

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

JanusGraph/janusgraph#4314 · Opened Mar 12, 2024
Flaky CQL Index test: testRepairGraphIndex Open

storage/cassandra testing/flaky

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

JanusGraph/janusgraph#4269 · Opened Feb 21, 2024
Publishing commit releases is failing repeatedly Open

kind/bug/possible

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

JanusGraph/janusgraph#4261 · Opened Feb 14, 2024
Faky CQL Test: testGotGIndexRemoval Open

area/testing storage/cassandra testing/flaky

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

JanusGraph/janusgraph#4234 · Opened Jan 31, 2024
Elastic Search for Cardinality List with meta-properties Open

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

JanusGraph/janusgraph#4221 · 2 comments · Opened Jan 22, 2024
Bug due to exceptional values handling Open

kind/bug/possible

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

JanusGraph/janusgraph#4220 · Opened Jan 19, 2024
Bug caused by operations that delete graphs using python Open

kind/bug/possible

Difficulty 4/5 3-5 days Newbie friendliness 28/100

JanusGraph/janusgraph#4219 · Opened Jan 19, 2024

JanusGraph/janusgraph

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