When a remote-write is executed towards a host name that is resolved to multiple IP addresses, this PR introduces a possibility to force creation of new connections used for the remote-write request to a randomly chosen IP address from the ones corresponding to the host name. The default behavior remains unchanged, i.s., the IP address used for the connection creation remains the one chosen by Go.
This is an experimental feature, it is disabled by default.
Signed-off-by: Yuri Nikolic <durica.nikolic@grafana.com>
Remote-write creates several shards to parallelise sending, each with
its own http connection. We do not want them all combined onto one
socket by http2.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
scrape: Remove implicit fallback to the Prometheus text format
Remove implicit fallback to the Prometheus text format in case of invalid/missing Content-Type and fail the scrape instead. Add ability to specify a `fallback_scrape_protocol` in the scrape config.
---------
Signed-off-by: alexgreenbank <alex.greenbank@grafana.com>
Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>
Co-authored-by: Björn Rabenstein <beorn@grafana.com>
Extracted HTTP client options (e.g., authentication, proxy settings,
TLS configuration, and custom headers) into a dedicated section for
improved clarity and organization. This will centralize all HTTP-related
options from prometheus/common in one place within the documentation.
The remaining HTTP-related settings in sections (e.g. Service Discovery)
will be moved in a follow-up PR to further unify the documentation
structure.
Signed-off-by: Julien <roidelapluie@o11y.eu>
In detail:
- Clarify that label name and value length limits are in byte,
not in UTF-8 data points.
- More consistent formatting to keep 80 characters line limet.
- Clarify various misleading specifications around "per sample",
"per scrape", "per scrape config", "per job"...
- Fix grammar.
Signed-off-by: beorn7 <beorn@grafana.com>
Conflicts:
cmd/prometheus/main.go
docs/command-line/prometheus.md
docs/feature_flags.md
web/ui/build_ui.sh
web/web.go
Resolved by dropping the UTF-8 feature flag and adding the
`auto-reload-config` feature flag.
For the new web ui pick all changes from `main`.
This change causes Prometheus to allow all UTF-8 characters in metric and label names.
This means that names that were previously invalid and would have been previously rejected will be allowed through.
Signed-off-by: Owen Williams <owen.williams@grafana.com>
Previously, the config doc suggested that scrapes are simply failed if
the bucket limit is exceeded. However, instead Prometheus first
attempts to reduce the resolution. This will succeed in almost all
non-pathological cases. However, in the rare case that it doesn't, the
scrape will be failed after all.
For the resolution limit AKA `native_histogram_min_bucket_factor`, the
logic is a bit different. Once the highest factor, i.e. schema -4, is
reached, the scrape will still succeed.
Signed-off-by: beorn7 <beorn@grafana.com>
machine424