Aliaksandr Valialkin
f325410c26
lib/promscrape: optimize service discovery speed
...
- Return meta-labels for the discovered targets via promutils.Labels
instead of map[string]string. This improves the speed of generating
meta-labels for discovered targets by up to 5x.
- Remove memory allocations in hot paths during ScrapeWork generation.
The ScrapeWork contains scrape settings for a single discovered target.
This improves the service discovery speed by up to 2x.
2022-11-29 21:26:00 -08:00
Aliaksandr Valialkin
6be07e8c25
lib/promscrape/discovery/kubernetes: do not drop pod meta-labels even if the corresponding node objects are missing
...
This reflects the logic used in Prometheus.
See https://github.com/prometheus/prometheus/pull/10080
2022-04-26 15:26:01 +03:00
Aliaksandr Valialkin
15190fcdae
lib/promscrape/discovery/kubernetes: allow attaching node-level labels and annotations to discovered pod targets in the same way as Prometheus 2.35 does
...
See https://github.com/prometheus/prometheus/issues/9510
and https://github.com/prometheus/prometheus/pull/10080
2022-04-22 20:15:41 +03:00
Aliaksandr Valialkin
3cb72ccc2a
lib/promscrape/discovery/kubernetes: add __meta_kubernetes_endpointslice_{label,annotation}* labels to be consistent with other role values for Kubernetes service discovery
2022-02-11 14:54:47 +02:00
Nikolay
4e7f7f3302
fixes service discovery for kubernetes ( #2173 )
...
* fixes service discovery for kubernetes
now it must take in account all pods that belong to the discovered endpoint and endpointslice
adds simple test for endpoints
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2134
* wip
* docs/CHANGELOG.md: document the change
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-11 13:34:22 +02:00
Aliaksandr Valialkin
3408a05d12
lib/promscrape/discovery/kubernetes: log a warning if role: endpoints discovers more than 1000 targets per a single endpoint
...
In this case `role: endpointslice` must be used instead.
See the following references:
* https://kubernetes.io/docs/reference/labels-annotations-taints/#endpoints-kubernetes-io-over-capacity
* https://github.com/kubernetes/kubernetes/pull/99975
* https://github.com/prometheus/prometheus/issues/7572#issuecomment-934779398
2021-10-19 13:20:40 +03:00
Aliaksandr Valialkin
2e001db4de
lib/promscrape/discovery/kubernetes: use v1 API instead of v1beta1 API for role: ingress and role: endpointslices
...
This should fix service discovery for these roles in Kubernetes v1.22 and newer versions.
See https://kubernetes.io/docs/reference/using-api/deprecation-guide/#ingress-v122
The corresponding change in Prometheus - https://github.com/prometheus/prometheus/pull/9205
2021-08-29 11:16:59 +03:00
Aliaksandr Valialkin
2ab1266593
lib/promscrape/discovery/kubernetes: remove a mutex at urlWatcher - use groupWatcher mutex for accessing all the urlWatcher children
...
This simplifies the code a bit and reduces the probability of improper mutex handling and deadlocks.
2021-04-29 10:14:26 +03:00
Aliaksandr Valialkin
a51d0ec6ec
lib/promscrape/discovery/kubernetes: load objects missing in local cache from api seriver in getObjectByRole()
...
This should fix possible race for `role: endpoints` and `role: endpointslices` service discovery,
when the referred `pod` and `service` objects aren't propagated to urlWatcher cache yet.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1182#issuecomment-813353359 for details.
2021-04-05 20:31:17 +03:00
Aliaksandr Valialkin
5b08e6fb16
lib/promscrape/discovery/kubernetes: properly track objects with the same names in multiple namespaces
...
This is a follow-up for 12e4785fe8https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1170
2021-04-02 14:45:32 +03:00
Aliaksandr Valialkin
12e4785fe8
lib/promscrape/discovery/kubernetes: properly discover targets in multiple namespaces
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1170
2021-04-02 14:28:30 +03:00
Aliaksandr Valialkin
d409898515
lib/promscrape/discovery/kubernetes: further optimize kubernetes service discovery for the case with many scrape jobs
...
Do not re-calculate labels per each scrape job - reuse them instead for scrape jobs with identical Kubernetes role
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
2021-03-14 21:14:53 +02:00
Aliaksandr Valialkin
133b288681
lib/promscrape/discovery/kubernetes: use a single watcher per apiURL
...
Previously multiple scrape jobs could create multiple watchers for the same apiURL. Now only a single watcher is used.
This should reduce load on Kubernetes API server when many scrape job configs use Kubernetes service discovery.
2021-03-11 16:43:04 +02:00
Aliaksandr Valialkin
bebcb8130c
lib/promscrape/discovery/kubernetes: localize Bookmark parsing code
...
This is a follow-up for e772d1c920
2021-03-11 13:08:08 +02:00
Aliaksandr Valialkin
e772d1c920
lib/promscrape/discovery/kubernetes: reduce load on Kubernetes API server by using watch bookmarks
...
This allows continuing object watch from the last bookbark instead of reloading all the objects
on watch errors or timeouts.
See https://kubernetes.io/docs/reference/using-api/api-concepts/#watch-bookmarks
2021-03-10 15:06:35 +02:00
Aliaksandr Valialkin
815666e6a6
lib/promscrape/discovery/kubernetes: cache target labels
...
This should reduce CPU usage on repeated SDConfig.GetLabels() calls.
2021-02-26 20:23:28 +02:00
Aliaksandr Valialkin
c8f2f9b2e8
lib/promscrape: cleanup after 9b2246c29b
...
Main points:
* Revert changes outside lib/promscrape/discovery/kuberntes . These changes can be applied later in a separate commit
* Minimize changes in lib/promscrape/discovery/kubernetes compared to a93e644001
2021-02-26 16:54:05 +02:00
Nikolay
9b2246c29b
vmagent kubernetes watch stream discovery. ( #1082 )
...
* started work on sd for k8s
* continue work on watch sd
* fixes
* continue work
* continue work on sd k8s
* disable gzip
* fixes typos
* log errror
* minor fix
Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
2021-02-26 16:46:13 +02:00
Aliaksandr Valialkin
38d7e96602
lib/promscrape/discovery/kubernetes: add __meta_kubernetes_endpoints_label_* and __meta_kuberntes_endpoints_annotation_* labels to role: endpoints
...
This syncs kubernetes SD with Prometheus 2.25
See 617c56f55a
2021-02-15 02:51:16 +02:00
Nikolay
b21e16ad0c
fixes kubernetes_sd ( #983 )
...
* fixes kubernetes_sd,
adds missing service metadata for pod ports without endpoint
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/982
* fix test
2020-12-24 11:26:14 +02:00
Aliaksandr Valialkin
d5dddb0953
all: use %w instead of %s for wrapping errors in fmt.Errorf
...
This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
6310b20e72
lib/promscrape/discovery/kubernetes/: unify apiConfig creation
2020-05-04 20:50:49 +03:00
Aliaksandr Valialkin
24461153bf
lib/promscrape: query /api/v1/namespaces/* for the configured namespaces in kubernetes_sd_config
...
This should fix authroization issues described at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/432
2020-04-24 14:33:50 +03:00
Aliaksandr Valialkin
1c5d14a2eb
lib/promscrape: move KubernetesSDConfig to lib/promscrape/discovery/kubernetes
2020-04-23 11:34:22 +03:00
Aliaksandr Valialkin
a714568374
lib/promscrape/discovery/kubernetes: hide role switch logic behind GetLabels function
2020-04-22 22:16:11 +03:00
Aliaksandr Valialkin
43375df923
lib/promscrape/discovery/kubernetes: update stale comments
2020-04-17 14:06:20 +03:00
Aliaksandr Valialkin
2e4e202c2b
lib/promscrape: add initial support for kubernetes_sd_config
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/334
2020-04-13 21:03:28 +03:00
