cortexproject

cortexproject/cortex

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

27 good first / help-wanted issues · Go · last activity Sep 2, 2026

cncf hacktoberfest kubernetes monitoring prometheus
27 Open Issues Need Help Last updated: Sep 2, 2026

Open Issues Need Help

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component/ingester help wanted component/rules component/alertmanager type/tests component/store-gateway
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/chore help wanted hacktoberfest good first issue
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted good first issue type/tests
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted storage/blocks component/compactor
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted hacktoberfest
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted good first issue
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/chore component/querier help wanted type/production hacktoberfest
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted type/performance keepalive
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/bug component/querier help wanted good first issue
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted component/documentation hacktoberfest good first issue
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/feature good first issue difficulty/easy
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
Remote Write 2.0 9 months ago
help wanted component/distributor
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/feature help wanted good first issue type/tests difficulty/easy
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/bug good first issue
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/feature help wanted component/query-frontend difficulty/medium
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/bug component/querier help wanted
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
type/feature help wanted good first issue parquet
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus
help wanted difficulty/medium
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus

AI Summary: Implement support for Prometheus type and unit labels within the Cortex OTLP receiver. This involves adapting the receiver to handle these labels from incoming OTLP data, ensuring compatibility with the Prometheus proposal (linked in the issue description), and writing thorough tests to validate the implementation. The upstream Prometheus PR (also linked) provides a reference implementation.

Complexity: 4/5
type/feature help wanted difficulty/medium OTLP
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus

AI Summary: The task involves enhancing the Cortex project's query functionality by integrating Parquet file support into the store gateway. This requires migrating the existing stateless Parquet query implementation to a stateful service within the gateway, improving cache utilization and enabling more efficient data access. Alternatives, such as using sticky sessions for queriers, are also considered but deemed less scalable.

Complexity: 4/5
type/feature help wanted component/store-gateway parquet
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus

AI Summary: The task involves integrating the existing Cortex User Scanner module into the alertmanager and rule bucket stores to improve performance and reduce load on the object storage's LIST API. This will prevent potential outages by caching user scan results, mirroring the successful implementation in the metric data bucket store. Alternatives, such as introducing separate caching buckets, are considered but the preferred solution leverages the existing User Scanner.

Complexity: 4/5
help wanted component/rules size/medium component/alertmanager difficulty/medium
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus

AI Summary: Implement experimental support for ingesting OpenTelemetry (OTEL) delta metrics in Cortex, initially as a tenant-configurable feature. This involves leveraging recent Prometheus advancements and potentially adapting the existing ingestion pipeline to handle OTEL delta values.

Complexity: 4/5
type/feature help wanted component/distributor difficulty/medium
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus

AI Summary: Create an integration test for the Cortex project to verify that query response compression is functioning correctly. This test should prevent regressions like the one introduced in PR #6763 and subsequently fixed in PR #6844.

Complexity: 4/5
help wanted good first issue type/tests
cortexproject/cortex
5.9K

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Go
#cncf#hacktoberfest#kubernetes#monitoring#prometheus