Commit Graph

15 Commits

Author SHA1 Message Date
Manuel Rüger f08b10c5bc
feat: Support zstd compression (#1496)
* feat: Support zstd encoding

This allows endpoints to respond with zstd compressed metric data, if
the requester supports it.

I have imported a content-encoding parser from
https://github.com/golang/gddo which is an archived repository to
support different content-encoding headers.

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Update prometheus/promhttp/http.go

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Update prometheus/promhttp/http.go

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Update prometheus/promhttp/http.go

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Integrate review comments

* String typed enum

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Test with gzip compression

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Update prometheus/promhttp/http.go

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Reorder error handling

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Apply suggestions from code review

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Manuel Rüger <manuel@rueg.eu>

* Include review suggestions

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

---------

Signed-off-by: Manuel Rüger <manuel@rueg.eu>
Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
2024-06-07 15:56:19 +01:00
Quentin D 644c80d136
Do not allocate memory when there's no constraints (#1296)
Signed-off-by: Quentin Devos <4972091+Okhoshi@users.noreply.github.com>
2023-06-27 12:21:36 +01:00
Soroosh Azary Marhabi 2cfd1eb960
Enable same linters as the Prometheus repo itself (#1056)
* Add gofumpt to github workflow & fix all files for it

Signed-off-by: sazary <soroosh@azary.ir>

* Add goimports to golangci & fix it's issues

Signed-off-by: sazary <soroosh@azary.ir>

* Add revive to golangci & fix it's issues

Signed-off-by: sazary <soroosh@azary.ir>

* Add errcheck & misspell to golangci and fix their issues

Signed-off-by: sazary <soroosh@azary.ir>

* Add govet & gosimple to golangci and fix their issues

Signed-off-by: sazary <soroosh@azary.ir>

* Enable all default linters of golangci

Signed-off-by: sazary <soroosh@azary.ir>
2022-06-17 09:04:06 +02:00
Bartlomiej Plotka 1f81b3e913
Added Transactional Gatherer allowed cached solutions (#989)
* Added cached collector.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

update.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Attempt 2

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Added blocking registry, with raw collector and transactional handler.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Added fast path to normal (empty) registry to save 8 allocs and 3K5B per Gather.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Simplified API, added tests.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Fix.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Simplified implementation.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Added benchmark.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Optimized.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Optimization attempt.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Revert "Optimization attempt."

This reverts commit 2fcaf51be9.

Optimization was not worth it:

 benchstat v1.txt v2.txt
name                                                           old time/op    new time/op    delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12    2.64µs ± 0%    4.05µs ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Update_of_all_elements_with_reset-12       701ms ± 0%     358ms ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Gather-12                                  535µs ± 0%  703934µs ± 0%   ~     (p=1.000 n=1+1)

name                                                           old alloc/op   new alloc/op   delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      208B ± 0%      208B ± 0%   ~     (all equal)
CachedTGatherer_Update/Update_of_all_elements_with_reset-12      40.2MB ± 0%    41.1MB ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Gather-12                                 48.6kB ± 0%    84.3kB ± 0%   ~     (p=1.000 n=1+1)

name                                                           old allocs/op  new allocs/op  delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      3.00 ± 0%      3.00 ± 0%   ~     (all equal)
CachedTGatherer_Update/Update_of_all_elements_with_reset-12        6.00 ± 0%   4003.00 ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Gather-12                                  1.00k ± 0%     2.01k ± 0%   ~     (p=1.000 n=1+1)

* nit.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Another optimization attempt.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* rename and further optimization.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Hopefully final optimization.

benchstat -delta-test=none v6.txt v9.txt
name                                                           old time/op    new time/op    delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12    13.1ms ± 0%     0.0ms ± 0%  -99.81%
CachedTGatherer_Update/Update_of_all_elements_with_reset-12       309ms ± 0%     282ms ± 0%   -8.77%
CachedTGatherer_Update/Gather-12                                  422ms ± 0%       0ms ± 0%  -99.95%

name                                                           old alloc/op   new alloc/op   delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      208B ± 0%      208B ± 0%    0.00%
CachedTGatherer_Update/Update_of_all_elements_with_reset-12      2.47kB ± 0%    1.67kB ± 0%  -32.56%
CachedTGatherer_Update/Gather-12                                 52.8kB ± 0%    24.6kB ± 0%  -53.34%

name                                                           old allocs/op  new allocs/op  delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      3.00 ± 0%      3.00 ± 0%    0.00%
CachedTGatherer_Update/Update_of_all_elements_with_reset-12        0.00           0.00         0.00%
CachedTGatherer_Update/Gather-12                                  1.00k ± 0%     0.00k ± 0%  -99.60%

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed obsolete comment

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Fixed tests.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed cache.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Fixed tests.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Re-add cache.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed cache.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2022-02-23 11:22:52 +00:00
beorn7 4d8144c11a Add test for the new promhttp_metric_handler_errors_total metric
Signed-off-by: beorn7 <beorn@grafana.com>
2019-06-06 16:56:58 +02:00
beorn7 8785922956 Revert "Fix tests to adhere to the recent change in prometheus/common"
This reverts commit 2c9811f88e.

This is necessary because the changes in prometheus/common got reverted.

Signed-off-by: beorn7 <beorn@soundcloud.com>
2019-01-27 23:18:44 +01:00
beorn7 2c9811f88e Fix tests to adhere to the recent change in prometheus/common
Signed-off-by: beorn7 <beorn@soundcloud.com>
2018-12-18 17:20:25 +01:00
beorn7 62361fc0fb Use streaming encoding of metrics
Signed-off-by: beorn7 <beorn@soundcloud.com>
2018-10-22 01:04:52 +02:00
Karsten Weiss 958ea82988 Fix typos
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
2018-04-13 23:23:52 +02:00
beorn7 c551c3c661 promhttp: Introduce limit for connections in flight and timeout 2018-02-09 17:05:10 +01:00
beorn7 8fd47d2e8f Provide an InstrumentedHandler
See https://github.com/prometheus/client_golang/issues/316 for details.
2018-02-08 16:27:51 +01:00
stuart nelson d01fd62222 new handler instrumentation (#285)
Add new HTTP handler instrumentation
2017-04-24 15:13:19 -04:00
beorn7 a6321dd0b1 Create a "merge gatherer"
This allows to finally get rid of the infamous injection hook in the
interface. The old SetMetricFamilyInjectionHook still exist as a
deprecated function but is now implemented with the new plumbing under
the hood.

Now that we have multiple Gatherer implementation, I renamed
push.Registry to push.FromGatherer.

This commit also improves the consistency checks, which happened as a
byproduct of the refactoring to allow checking in both the "merge
gatherer" Gatherers as well as in the normal Registry.
2016-08-12 21:34:17 +02:00
beorn7 1dc03a72f6 Replace hashicorp/go-multierror by own implementation
The own implementation is much easier as it only has to serve our one
use case.
2016-08-04 16:03:06 +02:00
beorn7 bc0b2a3b17 Move http stuff in its own package promhttp
To keep backwards compatibility while not creating circular import
chains, some code had to be duplicated. But all functions using it
have been declared deprecated hereby.

The new ways of instrumenting handlers will all go into the new
package, and ultimately, the prometheus package itself will be
completely igorant of HTTP.
2016-08-03 18:06:48 +02:00