redis/lettuce

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Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

Stars: 5.8k
Forks: 1.1k
Open beginner issues: 0
Indexed issues: 139
Avg merge: 1d 2h
Merged PRs (30d): 12

Dominant language: Java
License: MIT
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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139 open issues indexed

Repeated MOVED Failures After Consecutive AWS ElastiCache Node Replacements Reuse Stable Hostnames Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

redis/lettuce#3910 · 2 comments · Opened Sep 8, 2026
Remove references of `lettuce.io` Open

Difficulty 1/5 Under an hour Newbie friendliness 78/100

redis/lettuce#3907 · 1 comment · Opened Aug 31, 2026
`SharedLock.lockWritersExclusive` still spins RUNNABLE at 100% CPU on 6.8.2 when another thread's shared writers never drain (residual of #2905 / #2961) Open

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

redis/lettuce#3880 · 3 comments · Opened Aug 4, 2026
SharedLock Leaks Its Inner ReentrantLock When Holder Thread Dies (e.g. StackOverflowError), Wedging Every Subsequent Writer Open

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

redis/lettuce#3804 · 3 comments · Opened Jun 26, 2026
Remove Deprecated Redis Command APIs Open

type: breaking

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

redis/lettuce#3797 · Opened Jun 23, 2026
Deprecate Remaining Server, Cluster, Client, and Connection Commands Open

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

redis/lettuce#3796 · 1 comment · Opened Jun 23, 2026
Add Redis Cluster support to MultiDbClient Open

type: feature

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

redis/lettuce#3765 · 2 comments · Opened May 27, 2026
Intermittent Redis Command Timeout Issue Open

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

redis/lettuce#3738 · 9 comments · Opened May 4, 2026
`Sortable` only applicable for NUMERIC, TAG, TEXT and GEO field types Open

redis/lettuce#3687 · 2 comments · 1 assignee · Opened Mar 11, 2026
Deprecated commands Open

size: small status: good-first-issue status: help-wanted type: tracking-issue

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

redis/lettuce#3615 · 4 comments · Opened Jan 16, 2026
Consider making Project Reactor an optional dependency Open

redis/lettuce#3614 · 4 comments · 1 assignee · Opened Jan 15, 2026
Lettuce Cluster: Master-Slave Switch Causes Connection Pool Doubling Open

size: small

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

redis/lettuce#3595 · 5 comments · Opened Dec 23, 2025
Phase 3: Remove deprecated APIs for Transports Open

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

redis/lettuce#3594 · Opened Dec 22, 2025
Phase 2: Deprecation & Refactoring of Transports Open

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

redis/lettuce#3593 · Opened Dec 22, 2025
Refactor the Native transports after bumping to Netty 4.2 Open

type: tracking-issue

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

redis/lettuce#3592 · 1 comment · Opened Dec 22, 2025
Race Condition: Concurrent `setOptions()` During Async Connection Can Cause Inconsistent ClientOptions Open

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

redis/lettuce#3591 · Opened Dec 19, 2025
[automatic failover] Missing support for clientOptions per Database Open

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

redis/lettuce#3572 · Opened Dec 10, 2025
[automatic failover] Revisit health check strategy API Open

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

redis/lettuce#3569 · Opened Dec 9, 2025
[automatic failover] Sporadic test failure observed in CircuitBreakerMetricsIntegrationTests Open

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

redis/lettuce#3567 · Opened Dec 9, 2025
Promote the RQE APIs to production Open

type: improvement

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

redis/lettuce#3566 · 2 comments · Opened Dec 9, 2025
Support sampling/limiting topology refresh source nodes for large clusters Open

status: waiting-for-triage type: feature

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

redis/lettuce#3565 · 3 comments · Opened Dec 9, 2025
[automatic failover] Follow-up items for initial round of development Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

redis/lettuce#3531 · Opened Nov 25, 2025
`[MasterReplica] ReadFrom.REPLICA_PREFERRED fails entirely when first replica is unreachable, even before Sentinel marks it +sdown` Open

status: mre-available status: waiting-for-triage

Difficulty 4/5 3-5 days Newbie friendliness 64/100

redis/lettuce#3502 · 4 comments · Opened Nov 6, 2025
[Question] Redis command timeouts in cluster mode — possibly caused by large multi-slot MGET Open

status: waiting-for-triage

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

redis/lettuce#3501 · 5 comments · 1 reaction · Opened Nov 4, 2025
Reactive API observeChannels does not propagate sharded messages Open

type: feature

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

redis/lettuce#3494 · 4 comments · Opened Oct 30, 2025
Intermittent RedisCommandTimeoutException in Lettuce Client Open

status: waiting-for-triage

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

redis/lettuce#3493 · 5 comments · Opened Oct 30, 2025
Multiple threads share one StatefulRedisConnection may lead to key confusion Open

status: feedback-provided status: mre-available status: waiting-for-triage

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

redis/lettuce#3492 · 3 comments · Opened Oct 28, 2025
Follow-up: Revisit and Merge Changes from `7.0.x-3484-command-api-cleanup` Branch Open

for: team-attention type: techdebt

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

redis/lettuce#3484 · Opened Oct 23, 2025
Node/Connection detection during RedisLoadingException's Open

status: feedback-provided status: waiting-for-triage

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

redis/lettuce#3475 · 5 comments · Opened Oct 9, 2025
Remove all traces of the key generic when in the context of search indexes Open

redis/lettuce#3474 · 2 comments · 1 assignee · Opened Oct 9, 2025
Replace master/slave terminology with primary/replica Open

status: good-first-issue type: task

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

redis/lettuce#3463 · 3 comments · Opened Oct 3, 2025
Align the VectorSet API with other clients Open

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

redis/lettuce#3459 · 1 comment · Opened Oct 1, 2025
Update the SECURITY.md Open

type: documentation

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

redis/lettuce#3446 · Opened Sep 16, 2025
Improve the Redis Query Engine documentation Open

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

redis/lettuce#3408 · Opened Aug 22, 2025
Micrometer Tracing: Context is not ready in ObservationPredicate class Open

status: waiting-for-triage

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

redis/lettuce#3406 · Opened Aug 21, 2025
VLINKS has incorrect signature Open

size: extra-small

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

redis/lettuce#3404 · Opened Aug 18, 2025
Cost too much time between write() done and Closing Redis Connection Open

status: waiting-for-triage

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

redis/lettuce#3379 · 6 comments · Opened Aug 4, 2025
Write race condition while migrating/importing a slot Open

status: waiting-for-triage

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

redis/lettuce#3353 · Opened Jul 9, 2025
Refreshing the topology is a resource-intensive operation, especially in large clusters Open

status: waiting-for-triage

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

redis/lettuce#3331 · 2 comments · Opened Jun 24, 2025
Remove deprecated options and logic as part of the 7.0 release Open

status: help-wanted type: improvement

redis/lettuce#3328 · 12 comments · 1 assignee · Opened Jun 18, 2025
Provide a similar client-side caching API to the one Jedis provides Open

size: medium

redis/lettuce#3289 · 1 assignee · Opened May 7, 2025
Improvements to the Client-Side Caching feature Open

type: tracking-issue

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

redis/lettuce#3288 · Opened May 7, 2025
Undefined results when using ReadFrom with SCAN family commands Open

size: medium status: help-wanted status: mre-available

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

redis/lettuce#3287 · 18 comments · Opened May 6, 2025
Lettuce clientOptions config & NioSocketChannel may trigger memory leak Open

status: waiting-for-triage

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

redis/lettuce#3286 · 4 comments · Opened May 3, 2025
Client-Side Caching been benchmarks under heavy load Open

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

redis/lettuce#3260 · 1 comment · Opened Apr 17, 2025
Optionally call AUTH before calling HELLO Open

status: help-wanted status: waiting-for-triage

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

redis/lettuce#3242 · 3 comments · Opened Apr 4, 2025
Optimize occasional large keys causing excessive off-heap memory usage Open

status: waiting-for-triage

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

redis/lettuce#3237 · 9 comments · Opened Apr 1, 2025
RedisSubscription stucked in NO_DEMAND status Open

status: waiting-for-triage

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

redis/lettuce#3232 · 3 comments · Opened Mar 26, 2025
Jakarta EE 10 support Open

status: waiting-for-triage

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

redis/lettuce#3224 · 2 comments · 1 reaction · Opened Mar 21, 2025
Lettuce Sharded PubSub Resubscribe Possible Issue Open

type: bug

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

redis/lettuce#3213 · 6 comments · 1 reaction · Opened Mar 12, 2025

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