* Add support for discovering Linode IPv6 ranges associated with linodes.
* Add optional but recommended region filtering (faster queries, more relevant information).
* Added missing fields in configuration.md, updated linode test cases.
* Convert to TableDrivenTests as per tjhop request.
Signed-off-by: David Andruczyk <dandrucz@akamai.com>
This is the time period covered by a batch of samples, when the
number of waiting samples is lower than max_samples_per_send.
It does not affect timeouts or retries.
Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Federico Leva <federico.leva@relexsolutions.com>
This adds support for Consul's Catalog [List Services][^1] API's `filter`
parameter added in 1.14.x. This parameter grants the operator more
flexibility to do server-side filtering of the Catalog, before
Prometheus subscribes for updates. Operators can use this to improve
both the performance of Prometheus's Consul SD and reduce the impact of
enumerating large catalogs.
[^1]: https://developer.hashicorp.com/consul/api-docs/v1.14.x/catalog
Signed-off-by: Daniel Kimsey <dekimsey@protonmail.com>
Native Histograms: support native_histogram_min_bucket_factor in scrape_config
---------
Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
* Drop old inmemory samples
Co-authored-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Avoid copying timeseries when the feature is disabled
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Run gofmt
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Clarify docs
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Add more logging info
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Remove loggers
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* optimize function and add tests
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Simplify filter
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* rename var
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Update help info from metrics
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* use metrics to keep track of drop elements during buildWriteRequest
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* rename var in tests
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* pass time.Now as parameter
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Change buildwriterequest during retries
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Revert "Remove loggers"
This reverts commit 54f91dfcae20488944162335ab4ad8be459df1ab.
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* use log level debug for loggers
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
* Fix linter
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Remove noisy debug-level logs; add 'reason' label to drop metrics
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Remove accidentally committed files
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Propagate logger to buildWriteRequest to log dropped data
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Fix docs comment
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Make drop reason more specific
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Remove unnecessary pass of logger
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Use snake_case for reason label
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
* Fix dropped samples metric
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
---------
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
Signed-off-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>
Co-authored-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Co-authored-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>
Currently Prometheus will always request gzip compression from the target when sending scrape requests.
HTTP compression does reduce the amount of bytes sent over the wire and so is often desirable.
The downside of compression is that it requires extra resources - cpu & memory.
This also affects the resource usage on the target since it has to compress the response
before sending it to Prometheus.
This change adds a new option to the scrape job configuration block: enable_compression.
The default is true so it remains the same as current Prometheus behaviour.
Setting this option to false allows users to disable compression between Prometheus
and the scraped target, which will require more bandwidth but it lowers the resource
usage of both Prometheus and the target.
Fixes#12319.
Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
* Added ability to specify scrape protocols to accept during HTTP content type negotiation.
This is done via new option in GlobalConfig and ScrapeConfig: "scrape_protocol"
Signed-off-by: bwplotka <bwplotka@gmail.com>
* Fixed readability and log message.
Signed-off-by: bwplotka <bwplotka@gmail.com>
---------
Signed-off-by: bwplotka <bwplotka@gmail.com>
Namely, call out that all subsequent evaluations will be skipped until the initial evaluation completes.
Signed-off-by: Jennifer Villa <jvilla2013@gmail.com>
Addresses: #12536
This commit adds support for configuring sigv4 to an
`alertmanager_config`. Based heavily on the sigv4 work in the remote
write client.
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
promql: Extend testing framework to support native histograms
This includes both the internal testing framework as well as the rules unit test feature of promtool.
This also adds a bunch of basic tests. Many of the code level tests can now be converted to tests within the framework, and more tests can be added easily.
---------
Signed-off-by: Harold Dost <h.dost@criteo.com>
Signed-off-by: Gregor Zeitlinger <gregor.zeitlinger@grafana.com>
Signed-off-by: Stephen Lang <stephen.lang@grafana.com>
Co-authored-by: Harold Dost <h.dost@criteo.com>
Co-authored-by: Stephen Lang <stephen.lang@grafana.com>
Co-authored-by: Gregor Zeitlinger <gregor.zeitlinger@grafana.com>
It's possible (quite common on Kubernetes) to have a service discovery
return thousands of targets then drop most of them in relabel rules.
The main place this data is used is to display in the web UI, where
you don't want thousands of lines of display.
The new limit is `keep_dropped_targets`, which defaults to 0
for backwards-compatibility.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
Adds a new label to include the ID of the image that an instance is
using. This can be used for example to filter a job to only include
instances using a certain image as that image includes some exporter.
Sometimes the image information isn't available, such as when the image
is private and the user doesn't have the roles required to see it. In
those cases we just don't set the label, as the rest of the information
from the discovery provider can still be used.
Signed-off-by: Taavi Väänänen <hi@taavi.wtf>
Just adding a statement here explaining that the default is an
immediate move to "active" without a pending state.
Signed-off-by: Tim Martin <tim@timmartin.me>
Adds web config option `client_allowed_sans`. This enables Prometheus to
limit the Subject Alternate Name (SAN) allowed to connect.
Signed-off-by: SuperQ <superq@gmail.com>
So far, if a target exposes a histogram with both classic and native
buckets, a native-histogram enabled Prometheus would ignore the
classic buckets. With the new scrape config option
`scrape_classic_histograms` set, both buckets will be ingested,
creating all the series of a classic histogram in parallel to the
native histogram series. For example, a histogram `foo` would create a
native histogram series `foo` and classic series called `foo_sum`,
`foo_count`, and `foo_bucket`.
This feature can be used in a migration strategy from classic to
native histograms, where it is desired to have a transition period
during which both native and classic histograms are present.
Note that two bugs in classic histogram parsing were found and fixed
as a byproduct of testing the new feature:
1. Series created from classic _gauge_ histograms didn't get the
_sum/_count/_bucket prefix set.
2. Values of classic _float_ histograms weren't parsed properly.
Signed-off-by: beorn7 <beorn@grafana.com>
This commit adds a new 'keep_firing_for' field to Prometheus alerting
rules. The 'resolve_delay' field specifies the minimum amount of time
that an alert should remain firing, even if the expression does not
return any results.
This feature was discussed at a previous dev summit, and it was
determined that a feature like this would be useful in order to allow
the expression time to stabilize and prevent confusing resolved messages
from being propagated through Alertmanager.
This approach is simpler than having two PromQL queries, as was
sometimes discussed, and it should be easy to implement.
This commit does not include tests for the 'resolve_delay' field. This
is intentional, as the purpose of this commit is to gather comments on
the proposed design of the 'resolve_delay' field before implementing
tests. Once the design of the 'resolve_delay' field has been finalized,
a follow-up commit will be submitted with tests."
See https://github.com/prometheus/prometheus/issues/11570
Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
* Update docs example rules for default config
The prometheus download includes a default config to scrape itself.
This self-scraping prometheus doesn't include any metric named as
`http_inprogress_requests`, but does include one named
`prometheus_http_requests_total`.
Updating this example rule in the docs to one which can be used
out-of-the-box with the default download would be a nice improvement.
Signed-off-by: Sam Jewell <sam.jewell@grafana.com>
* Update syntax as per @LeviHarrison's review
Co-authored-by: Levi Harrison <levisamuelharrison@gmail.com>
Signed-off-by: Sam Jewell <2903904+samjewell@users.noreply.github.com>
Signed-off-by: Sam Jewell <sam.jewell@grafana.com>
Signed-off-by: Sam Jewell <2903904+samjewell@users.noreply.github.com>
Co-authored-by: Levi Harrison <levisamuelharrison@gmail.com>
Since the struct defines proxy_connect_header instead of proxy_connect_headers, all relevant occurences of it were replaced with the correct configuration name as defined in the HTTPClientConfig struct.
Signed-off-by: Robbe Haesendonck <googleit@inuits.eu>
* Add VM size label to azure service discovery (#11575)
Signed-off-by: davidifr <davidfr.mail@gmail.com>
* Add VM size label to azure service discovery (#11575)
Signed-off-by: davidifr <davidfr.mail@gmail.com>
* Add VM size label to azure service discovery (#11575)
Signed-off-by: davidifr <davidfr.mail@gmail.com>
Signed-off-by: davidifr <davidfr.mail@gmail.com>
* docs: Add link to best practices in "Defining Recording Rules" page
Signed-off-by: John Carlo Roberto <10111643+Irizwaririz@users.noreply.github.com>
* docs: Improve wording
Signed-off-by: John Carlo Roberto <10111643+Irizwaririz@users.noreply.github.com>
Signed-off-by: John Carlo Roberto <10111643+Irizwaririz@users.noreply.github.com>
* Common client in EC2 and Lightsail
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Azure -> AWS
Signed-off-by: Levi Harrison <git@leviharrison.dev>
Signed-off-by: Levi Harrison <git@leviharrison.dev>
This PR updates the Serverset url at the configuration.md documentation.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
Currently, it's not explicitly called out which permissions are needed
for service discovery of EC2 instances. It's not super hard to figure
out, but it did involve a bit of guesswork when I did it yesterday, and
I figure it's worth saving people that effort.
I've also seen examples around the internet where people are granting
much broader permissions than they need to, so maybe we can save on that
by explicitly saying what's needed.
Signed-off-by: Chris Sinjakli <chris@sinjakli.co.uk>
It's currently possible to use blackbox_exporter to probe MX records
themselves. However it's not possible to do an end-to-end test, like is
possible with SRV records. This makes it possible to use MX records as a
source of hostnames in the same way as SRV records.
Signed-off-by: David Leadbeater <dgl@dgl.cx>
Signed-off-by: Jonathan Stevens <jonathanstevens89@gmail.com>
Signed-off-by: Jonathan Stevens <jon.stevens@getweave.com>
Co-authored-by: Jonathan Stevens <jon.stevens@getweave.com>
* add description for __meta_kubernetes_endpoints_label_* and __meta_kubernetes_endpoints_labelpresent_*
Signed-off-by: renzheng.wang <wangrzneu@gmail.com>
The Kubernetes service discovery can only add node labels to
targets from the pod role.
This commit extends this functionality to the endpoints and
endpointslices roles.
Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
Update the wording of the `labelmap` relabel action to make it more
clear that it acts on all the label names, rather than the list provided
by source_labels.
Signed-off-by: SuperQ <superq@gmail.com>
* Fix documentation for Docker API filters
Signed-off-by: Robert Jacob <xperimental@solidproject.de>
* Undo indentation change
Signed-off-by: Robert Jacob <xperimental@solidproject.de>
* Added pathPrefix function to the template reference documentation
Signed-off-by: David N Perkins <David.N.Perkins@ibm.com>
* PR suggestions
Signed-off-by: David N Perkins <David.N.Perkins@ibm.com>
* Switch wording back
Signed-off-by: David N Perkins <David.N.Perkins@ibm.com>
* Followup on OpenTelemetry migration
- tracing_config: Change with_insecure to insecure, default to false.
- tracing_config: Call SetDirectory to make TLS certificates relative to the Prometheus
configuration
- documentation: Change bool to boolean in the configuration
- documentation: document type float
- tracing: Always restart the tracing manager when TLS config is set to
reload certificates
- tracing: Always set TLS config, which could be used e.g. in case of
potential redirects.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>\\
This commit adds support for discovering targets from the same
Kubernetes namespace as the Prometheus pod itself. Own-namespace
discovery can be indicated by using "." as the namespace.
Fixes#9782
Signed-off-by: fpetkovski <filip.petkovsky@gmail.com>
When using Kubernetes on cloud providers, nodes will have the
spec.providerID field populated to contain the cloud provider specific
name of the EC2/GCE/... instance.
Let's expose this information as an additional label, so that it's
easier to annotate metrics and alerts to contain the cloud provider
specific name of the instance to which it pertains.
Signed-off-by: Ed Schouten <eschouten@apple.com>
This can be useful when generating rules, a query may use a duration,
and it may be useful to template that into a URL parameter. Therefore
this allows interfacing with systems that don't implement Prometheus
style duration parsing.
Signed-off-by: David Leadbeater <dgl@dgl.cx>
* remote-write: slow down retries to avoid DDOS
Increase the default max retry time from 100ms to 5 seconds.
Remote write calls are retried after a recoverable error such as the
back-end returning 500. Prometheus waits the minimum time and retries,
then doubles the wait on each subsequent retry until the maximum is
reached.
If some data is still getting through, remote-write will also increase
shards, and the default maximum is 200. 200 shards sending every 100ms
is 20 calls per second, to a back-end that is already in trouble.
5 seconds was chosen to match the default BatchSendDeadline: if we can
afford to wait that long for no response, then we can wait the same time
to retry. We will reach 5 seconds after 9 successive failures.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
* Update config doc for max_backoff change
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
We have been Puppet user for 10 years and we are users of
https://github.com/camptocamp/prometheus-puppetdb-sd
However, that file_sd implementation contains business logic and
assumptions around e.g. the modules which you are using.
This pull request adds a simple PuppetDB service discovery, which will
enable more use cases than the upstream sd.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* PromQL: Fix start and end keywords masking label and metric names
This commit fixes an issue with the "at modifier" that introduced two
new keywords: `start` and `end`. In grouping options and in metric
names, these keywords took precedence over metric or label names, so
that those metrics and labels could no longer be referenced.
Signed-off-by: Clayton Peters <clayton.peters@man.com>
* Add in additional tests for metrics and/or labels called start/end.
Signed-off-by: Clayton Peters <clayton.peters@man.com>
* *: Cut 2.29.0-rc.0
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* VERSION: bump to 2.29.0-rc.0
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* Remove experimental wording on size-based retention
Followup of #9004
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* Fix PR reference in changelog
Signed-off-by: George Brighton <george@gebn.co.uk>
* Describe EC2 availability zone IDs at most once per refresh (#9142)
Signed-off-by: George Brighton <george@gebn.co.uk>
* Describe EC2 availability zones at most once per SD load
Closes#9142.
Signed-off-by: George Brighton <george@gebn.co.uk>
* Incorporate feedback
Signed-off-by: George Brighton <george@gebn.co.uk>
* Integrate feedback
Signed-off-by: George Brighton <george@gebn.co.uk>
* Add a compatibility note for macOS users.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* *: Cut v2.29.0-rc.1
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* Fix `kuma_sd` targetgroup reporting (#9157)
* Bundle all xDS targets into a single group
Signed-off-by: austin ce <austin.cawley@gmail.com>
* *: cut v2.29.0-rc.2
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* Rename links
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* bump codemirror-promql to 0.17.0
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
* *: cut v2.29.0
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* tsdb: align atomically accessed int64 (#9192)
This prevents a panic in 32-bit archs:
https://pkg.go.dev/sync/atomic#pkg-note-BUGFixed#9190
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* Release 2.29.1 (#9193)
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
Co-authored-by: Clayton Peters <clayton.peters@man.com>
Co-authored-by: Frederic Branczyk <fbranczyk@gmail.com>
Co-authored-by: George Brighton <george@gebn.co.uk>
Co-authored-by: Austin Cawley-Edwards <austin.cawley@gmail.com>
Co-authored-by: Levi Harrison <git@leviharrison.dev>
Co-authored-by: Augustin Husson <husson.augustin@gmail.com>
* optimize Linode SD by polling for event changes during refresh
Most accounts are fairly "static", in the sense that they're not cycling
through instances constantly. So rather than do a full refresh every
interval and potentially make several behind-the-scenes paginated API
calls, this will now poll the `/account/events/` endpoint every minute
with a list of events that we care about. If a matching event is found,
we then do a full refresh.
Co-authored-by: William Smith <wsmith@linode.com>
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
Signed-off-by: William Smith <wsmith@linode.com>
* Added MaxSamplesPerSend
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added tests
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Fixed order of require
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added docs
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* writes -> writesReceived
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Improved send loop
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Write exemplars to the WAL and send them over remote write.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Update example for exemplars, print data in a more obvious format.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Add metrics for remote write of exemplars.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Fix incorrect slices passed to send in remote write.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* We need to unregister the new metrics.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Address review comments
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Order of exemplar append vs write exemplar to WAL needs to change.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Several fixes to prevent sending uninitialized or incorrect samples with an exemplar. Fix dropping exemplar for missing series. Add tests for queue_manager sending exemplars
Signed-off-by: Martin Disibio <mdisibio@gmail.com>
* Store both samples and exemplars in the same timeseries buffer to remove the alloc when building final request, keep sub-slices in separate buffers for re-use
Signed-off-by: Martin Disibio <mdisibio@gmail.com>
* Condense sample/exemplar delivery tests to parameterized sub-tests
Signed-off-by: Martin Disibio <mdisibio@gmail.com>
* Rename test methods for clarity now that they also handle exemplars
Signed-off-by: Martin Disibio <mdisibio@gmail.com>
* Rename counter variable. Fix instances where metrics were not updated correctly
Signed-off-by: Martin Disibio <mdisibio@gmail.com>
* Add exemplars to LoadWAL benchmark
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* last exemplars timestamp metric needs to convert value to seconds with
ms precision
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Process exemplar records in a separate go routine when loading the WAL.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Address review comments related to clarifying comments and variable
names. Also refactor sample/exemplar to enqueue prompb types.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Regenerate types proto with comments, update protoc version again.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Put remote write of exemplars behind a feature flag.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Address some of Ganesh's review comments.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Move exemplar remote write feature flag to a config file field.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Address Bartek's review comments.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Don't allocate exemplar buffers in queue_manager if we're not going to
send exemplars over remote write.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Add ValidateExemplar function, validate exemplars when appending to head
and log them all to WAL before adding them to exemplar storage.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Address more reivew comments from Ganesh.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Add exemplar total label length check.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
* Address a few last review comments
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Martin Disibio <mdisibio@gmail.com>
* scrape: add label limits per scrape
Add three new limits to the scrape configuration to provide some
mechanism to defend against unbound number of labels and excessive
label lengths. If any of these limits are broken by a sample from a
scrape, the whole scrape will fail. For all of these configuration
options, a zero value means no limit.
The `label_limit` configuration will provide a mechanism to bound the
number of labels per-scrape of a certain sample to a user defined limit.
This limit will be tested against the sample labels plus the discovery
labels, but it will exclude the __name__ from the count since it is a
mandatory Prometheus label to which applying constraints isn't
meaningful.
The `label_name_length_limit` and `label_value_length_limit` will
prevent having labels of excessive lengths. These limits also skip the
__name__ label for the same reasons as the `label_limit` option and will
also make the scrape fail if any sample has a label name/value length
that exceed the predefined limits.
Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>
* scrape: add metrics and alert to label limits
Add three gauge, one for each label limit to easily access the
limit set by a certain scrape target.
Also add a counter to count the number of targets that exceeded the
label limits and thus were dropped. This is useful for the
`PrometheusLabelLimitHit` alert that will notify the users that scraping
some targets failed because they had samples exceeding the label limits
defined in the scrape configuration.
Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>
* scrape: apply label limits to __name__ label
Apply limits to the __name__ label that was previously skipped and
truncate the label names and values in the error messages as they can be
very very long.
Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>
* scrape: remove label limits gauges and refactor
Remove `prometheus_target_scrape_pool_label_limit`,
`prometheus_target_scrape_pool_label_name_length_limit`, and
`prometheus_target_scrape_pool_label_value_length_limit` as they are not
really useful since we don't have the information on the labels in it.
Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>
* Enable parsing strings in humanize functions
This is useful to humanize count_values or buckets labels.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
Prometheus adds the ability to read secrets from files. This add
this feature for the scaleway service discovery.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
