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
f39c84b21f
lib/promscrape/discovery/kubernetes: typo fix in error message
2021-03-26 12:46:14 +02:00
Aliaksandr Valialkin
9761ffd161
lib/promscrape/discovery/kubernetes: properly handle too old resource version error message from Kubernetes watch API
2021-03-26 12:28:10 +02:00
Aliaksandr Valialkin
b88806ecbf
lib/promscrape/discovery/kubernetes: do not start object watcher until initial objects are loaded
2021-03-14 21:55:00 +02:00
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
7a16e8e3a2
lib/promscrape/discovery: fixes after 133b288681
...
- Removed a deadlock in addAPIWatcher
- Do not create unused ScrapeWork objects
- Do not spend CPU resources on creating objectByKey map in addAPIWatcher
This work is based on https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1125
2021-03-13 15:18:51 +02:00
Aliaksandr Valialkin
def014eb75
lib/promscrape/discovery/kubernetes: remove debug lines left after the commit 133b288681
2021-03-12 11:22:33 +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
4b18a4f026
lib/promscrape/discovery/kubernetes: remove too verbose logs about starting and stopping the watchers
...
Log the number of objects loaded per each watch url
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
2021-03-09 15:05:14 +02:00
Aliaksandr Valialkin
ab4f090c63
lib/promscrape/discovery/kubernetes: reduce memory usage further when big number of scrape jobs are configured for the same kubernetes_sd_config role
...
Serialize reloading per-role objects, so they don't occupy too much memory when objects for many scrape jobs are simultaneously refreshed.
Do not reload per-role objects if they were already refreshed by concurrent goroutines. This should reduce load on Kubernetes API server
when big number of scrape jobs are configured for the same Kubernetes role.
This is a follow-up for 17b87725edhttps://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
2021-03-07 19:51:03 +02:00
Aliaksandr Valialkin
17b87725ed
lib/promscrape/discovery/kubernetes: reduce memory usage when Kubernetes service discovery is configured on a big number of scrape jobs
...
Previously vmagent was creating a separate Kubernetes object cache per each scrape job.
This could result in increased memory usage when monitoring a Kubernetes cluster with big number of objects (pods / nodes / services, etc.)
as seen at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
Now it uses a shared map of scrape objects across multiple scrape jobs.
2021-03-05 17:29:55 +02:00
Aliaksandr Valialkin
c9a25e931b
lib/promscrape/discovery/kubernetes: move apiWatcher code to a separate file
2021-03-05 12:36:05 +02:00
