divviup/janus

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Experimental implementation of the Distributed Aggregation Protocol (DAP) specification.

Stars: 70
Forks: 16
Open beginner issues: 0
Indexed issues: 117
Avg merge: 4h 36m
Merged PRs (30d): 30

Dominant language: Rust
License: MPL-2.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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117 open issues indexed

Rely on TaskConfiguration for task provisioning Open

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

divviup/janus#4798 · Opened Aug 12, 2026
Re-export more necessary items from janus_client and janus_collector Open

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

divviup/janus#4797 · 1 reaction · Opened Aug 12, 2026
Bump libprio to draft-irtf-cfrg-vdaf-20-compatible version Open

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

divviup/janus#4788 · Opened Aug 7, 2026
Enforce `unknown_verification_key_id` Open

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

divviup/janus#4787 · Opened Aug 7, 2026
Compact and renumber `ReportError` Open

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

divviup/janus#4786 · Opened Aug 7, 2026
Content-derived resource IDs Open

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

divviup/janus#4785 · 2 comments · Opened Aug 7, 2026
Add a `UNIQUE(task_id, aggregate_share_id)` constraint to the `aggregate_share_jobs` table. Open

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

divviup/janus#4768 · Opened Aug 5, 2026
Support Collection Extensions Open

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

divviup/janus#4715 · 1 comment · Opened Jul 15, 2026
Consider changing enums to struct(u16) Open

divviup/janus#4696 · 1 assignee · Opened Jul 8, 2026
Consider rejecting taskprov tasks whose task expiration exceeds the peer aggregator's report expiry age Open

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

divviup/janus#4675 · 4 comments · Opened Jun 28, 2026
Consider allowing API-provisioned tasks to set a task info string Open

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

divviup/janus#4626 · Opened Jun 5, 2026
Wire up `Prio3L1BoundSum` with appropriate differential privacy Open

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

divviup/janus#4449 · Opened Mar 12, 2026
Switch the http_handler's `Extension` layer for metrics to a State fn Open

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

divviup/janus#4448 · Opened Mar 10, 2026
Adopt opentelemetry-instrumentation-tower for server metrics Open

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

divviup/janus#4431 · Opened Mar 9, 2026
Remove `janus_aggregator_core::datastore::Error::TimeUnaligned` Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

divviup/janus#4430 · Opened Mar 5, 2026
Insert ErrorCode into aggregator API response extensions for accurate metrics labeling Open

observability

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

divviup/janus#4425 · Opened Mar 4, 2026
Migrate to Axum from Trillium Open

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

divviup/janus#4283 · Opened Jan 20, 2026
Clean up all aged DAP document links Open

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

divviup/janus#4260 · Opened Jan 7, 2026
Remove the 'prometheus' feature and the deprecated opentelemetry-prometheus package Open

dependencies docker

divviup/janus#4167 · 1 comment · 1 assignee · Opened Nov 18, 2025
Add Report Upload tests using HTTP/2 and/or QUIC Open

aggregator-api docker enhancement

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

divviup/janus#4147 · 1 comment · Opened Nov 5, 2025
`LIFORequestQueue`: compute retry-after based on observed processing rate Open

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

divviup/janus#4051 · Opened Sep 11, 2025
Forward-port metrics for total transaction time and LIFO queue wait time Open

divviup/janus#4044 · 2 comments · 1 assignee · Opened Sep 9, 2025
Metrics: histograms for aggregate share and collection job size in reports and batch aggregations Open

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

divviup/janus#4015 · Opened Aug 27, 2025
Be consistent about HTTP status in aggregator API on failures Open

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

divviup/janus#3959 · 1 reaction · Opened Aug 8, 2025
Move datastore items related to leases into new module Open

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

divviup/janus#3946 · Opened Jul 31, 2025
Add support for retry_http_request_notify in retries.rs to use DateTime-style Retry-After headers Open

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

divviup/janus#3943 · Opened Jul 28, 2025
Job lease attempt high water marks Open

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

divviup/janus#3933 · Opened Jul 25, 2025
Emit metric for failure to step jobs Open

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

divviup/janus#3932 · Opened Jul 24, 2025
Compute Retry-After for EmptyBody aggregator responses Open

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

divviup/janus#3921 · Opened Jul 19, 2025
Expose a custom metric for Aggregator autoscaling decisions Open

Difficulty 4/5 3-5 days Newbie friendliness 40/100

divviup/janus#3871 · 4 comments · Opened Jun 6, 2025
Streaming processing of collection jobs Open

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

divviup/janus#3857 · 1 comment · Opened Jun 3, 2025
Allow configuring tolerable clock skew via aggregator API Open

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

divviup/janus#3843 · 1 comment · Opened May 29, 2025
Wire aggregation job failures into per-task counters Open

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

divviup/janus#3798 · Opened May 5, 2025
Better ordering of `HpkeConfigList` Open

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

divviup/janus#3779 · Opened Apr 15, 2025
Consider disabling cascading delete of task_upload_counters/task_aggregation_counters Open

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

divviup/janus#3707 · Opened Mar 4, 2025
Update simulation tests for asynchronous aggregation Open

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

divviup/janus#3669 · Opened Feb 22, 2025
Performance profiling and optimization of async aggregation Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

divviup/janus#3668 · Opened Feb 22, 2025
Better Retry-After times for async aggregation Open

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

divviup/janus#3667 · Opened Feb 22, 2025
Check `is_agg_param_valid()` before beginning preparation Open

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

divviup/janus#3622 · Opened Jan 27, 2025
Use `TestRuntime` in `assert_task_aggregation_counter()` Open

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

divviup/janus#3619 · Opened Jan 23, 2025
Helper aggregation: implement check that client reports fall into valid window for task. Open

divviup/janus#3524 · 1 assignee · Opened Nov 27, 2024
Add support for Prio3MultihotCountVec. Open

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

divviup/janus#3510 · Opened Nov 23, 2024
DAP-13: indicate unknown report extensions during upload. Open

divviup/janus#3505 · 1 assignee · Opened Nov 21, 2024
Re-enable divviup-ts tests once divviup-ts implements DAP-13 Open

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

divviup/janus#3479 · Opened Nov 12, 2024
Split batch_aggregation_shard_count configuration in two Open

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

divviup/janus#3463 · Opened Nov 4, 2024
Asynchronous aggregation jobs Open

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

divviup/janus#3451 · 6 comments · Opened Oct 22, 2024
Helper task aggregation counters: implement batched background updates Open

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

divviup/janus#3443 · 3 comments · Opened Oct 18, 2024
Metrics gauge for number of active HTTP requests Open

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

divviup/janus#3440 · Opened Oct 16, 2024
janus_collector: Map field elements to negative aggregate result values (for DP noise) Open

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

divviup/janus#3346 · 1 comment · Opened Jul 30, 2024
Strengthen integration tests of DP with statistical test on noise distribution Open

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

divviup/janus#3325 · 1 comment · Opened Jul 23, 2024

divviup/janus

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