prometheus/client_golang

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Prometheus instrumentation library for Go applications

Stars: 6k
Forks: 1.3k
Open beginner issues: 0
Indexed issues: 85
Avg merge: 1d 6h
Merged PRs (30d): 17

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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85 open issues indexed

Performance: reconsider sync.Pool for gzip Open

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

prometheus/client_golang#2126 · Opened Sep 18, 2026
Move from unmaintained json-iterator custom encoders to json/v2 encoding Open

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

prometheus/client_golang#2105 · 4 comments · Opened Sep 5, 2026
Question: What are the best practices for testing exposed metrics compatibility? Open

question

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

prometheus/client_golang#2004 · 5 comments · Opened May 13, 2026
Consider moving to OpenAPI based HTTP API Open

go good first issue help wanted

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

prometheus/client_golang#1998 · 2 comments · 1 reaction · Opened May 7, 2026
Proposal: built-in TTL Open

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

prometheus/client_golang#1983 · 5 comments · 2 reactions · Opened Apr 14, 2026
Plan for how to relax exemplar max runes for OM 2.0 Open

prometheus/client_golang#1953 · 4 comments · 1 assignee · Opened Feb 26, 2026
bug: metrics with no label constraint are exposed to potential race conditions Open

prometheus/client_golang#1951 · 2 comments · 1 assignee · Opened Feb 16, 2026
Avoiding "duplicate metrics collector registration attempted" error while running parallel tests Open

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

prometheus/client_golang#1937 · Opened Jan 7, 2026
Native histogram example Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

prometheus/client_golang#1918 · 5 comments · 1 reaction · Opened Nov 27, 2025
Improve bucketing of native histograms with positive schema Open

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

prometheus/client_golang#1916 · 1 comment · Opened Nov 15, 2025
Improve classic histogram algorithm Open

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

prometheus/client_golang#1915 · Opened Nov 15, 2025
docs: Add guidance on adding new indirect/direct imports. Open

chore

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

prometheus/client_golang#1913 · 1 reaction · Opened Nov 4, 2025
Request to upgrade EOL dependency github.com/munnerz/goautoneg:20191010-snapshot-a7dc8b61 Open

chore

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

prometheus/client_golang#1887 · 2 reactions · Opened Oct 7, 2025
Dependency github.com/beorn7/perks:v1.0.1 is EOL — request to upgrade Open

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

prometheus/client_golang#1886 · 1 comment · Opened Oct 7, 2025
invalid memory address with WithLabelValues() Open

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

prometheus/client_golang#1877 · Opened Sep 19, 2025
Error building with Go 1.25 Open

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

prometheus/client_golang#1875 · 1 comment · Opened Sep 11, 2025
Error with ValidationScheme has no field or method IsValidMetricName Open

question

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

prometheus/client_golang#1873 · 1 comment · Opened Sep 9, 2025
api: no way to get query stats Open

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

prometheus/client_golang#1840 · 1 comment · Opened Jul 15, 2025
Inconsistent result with same API call to Prometheus via client_golang Open

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

prometheus/client_golang#1836 · Opened Jul 15, 2025
[signal SIGSEGV: segmentation violation code=0x80 addr=0x0 pc=0x2249bab] Open

need investigation need more information

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

prometheus/client_golang#1829 · 2 comments · Opened Jul 3, 2025
Native histograms: testutil to provide ways to verify native histograms Open

enhancement feature request

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

prometheus/client_golang#1824 · 1 comment · Opened Jun 30, 2025
Metric help text validation causes issues with multiple versions Open

bug help wanted

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

prometheus/client_golang#1820 · 2 comments · Opened Jun 11, 2025
Memory Leak with DeletePartialMatch() Open

bug

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

prometheus/client_golang#1810 · 1 comment · Opened May 8, 2025
For Registerer interface expose all registered Metrics Open

feature request

prometheus/client_golang#1801 · 1 assignee · Opened Apr 17, 2025
`responseWriterDelegator` incorrectly handles `100 Continue` response Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

prometheus/client_golang#1772 · 1 comment · Opened Mar 11, 2025
Re-introduce CAS optimizations for high concurrency cases. Open

enhancement feature request good first issue

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

prometheus/client_golang#1760 · 3 comments · Opened Mar 4, 2025
Add consistent Add/Inc/Observe microbenchmarks, validate results on release (regressions vs past releases). Open

enhancement help wanted

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

prometheus/client_golang#1759 · 3 comments · Opened Mar 4, 2025
Info annotations from responses are not exposed Open

enhancement feature request help wanted

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

prometheus/client_golang#1733 · 2 comments · Opened Feb 12, 2025
High memory allocation in prometheus.MakeLabelPair Open

enhancement

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

prometheus/client_golang#1702 · 4 comments · Opened Dec 25, 2024
Unexpected behavior of Collect for curried vector Open

bug stale

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

prometheus/client_golang#1700 · 5 comments · Opened Dec 15, 2024
Mention concurrency-safety properties in doc comments Open

enhancement stale

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

prometheus/client_golang#1664 · 1 comment · Opened Oct 31, 2024
runtime error: index out of range [43] with length 30 in HandlerForTransactional Open

bug stale

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

prometheus/client_golang#1663 · 2 comments · Opened Oct 28, 2024
examples: Refresh client_golang examples Open

enhancement help wanted low hanging fruit stale

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

prometheus/client_golang#1652 · 2 comments · 1 reaction · Opened Oct 15, 2024
proposal: Move API code to a separate module/repo Open

enhancement stale

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

prometheus/client_golang#1649 · 5 comments · 1 reaction · Opened Oct 15, 2024
[release process]: Require the release compatibility with big user e.g. Kubernetes Open

chore help wanted stale

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

prometheus/client_golang#1648 · 1 comment · Opened Oct 15, 2024
[release process]: Do release candidates Open

feature request stale

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

prometheus/client_golang#1646 · 3 comments · Opened Oct 14, 2024
Is Counter.Add() thread-safe? Open

question stale

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

prometheus/client_golang#1642 · 6 comments · Opened Oct 10, 2024
testutil: Better registry state assertion framework/API Open

api enhancement help wanted stale

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

prometheus/client_golang#1639 · 5 comments · 8 reactions · Opened Oct 8, 2024
Access the list of registered uninitialised metrics. Open

stale

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

prometheus/client_golang#1636 · 2 comments · Opened Oct 3, 2024
Reset functionality for Counters Open

feature request stale

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

prometheus/client_golang#1624 · 2 comments · 1 reaction · Opened Sep 12, 2024
Type-safe labels support? Open

stale

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

prometheus/client_golang#1599 · 1 comment · 3 reactions · Opened Aug 28, 2024
processcollector: Add support for Darwin platform. Open

good first issue help wanted

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

prometheus/client_golang#1590 · 5 comments · Opened Aug 20, 2024
gocollector tests: Adjust CI to tell us when generated files were manually changed + refactor? Open

stale

prometheus/client_golang#1575 · 8 comments · 1 assignee · Opened Aug 9, 2024
AlertingRule and RecordingRule struct in api.go missing Type variable Open

stale

Difficulty 1/5 Under an hour Newbie friendliness 45/100

prometheus/client_golang#1557 · 2 comments · Opened Jul 9, 2024
[meta] Changelog Automation Open

stale

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

prometheus/client_golang#1546 · 2 comments · 2 reactions · Opened Jun 27, 2024
Possibility of using a more lenient handling of errors in individual samples Open

stale

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

prometheus/client_golang#1543 · 3 comments · Opened Jun 21, 2024
Propagate context.Context through Gather and Collect Open

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

prometheus/client_golang#1538 · 10 comments · 16 reactions · Opened Jun 18, 2024
Client_golang Website Open

stale

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

prometheus/client_golang#1516 · 3 comments · Opened May 16, 2024
Configure security vuln dependabot automation for latest image. Open

help wanted stale

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

prometheus/client_golang#1512 · 4 comments · 1 reaction · Opened May 9, 2024
Consider support for testing exemplars in prometheus/testutil Open

help wanted stale

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

prometheus/client_golang#1479 · 5 comments · Opened Mar 27, 2024

prometheus/client_golang

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