Commit graph

12 commits

Author SHA1 Message Date
Fabian Reinartz 0d7105abee Remove scrape config from Target.
This commit removes the scrapeConfig entirely from Target.
All identity defining parameters are thus immutable now and the mutex
can be removed..

Target identity is now correctly defined by the labels and the full URL.
This in particular includes URL parameters that are not specified in the
label set.

Fingerprint is also removed from hash to remove an unnecessary tight coupling
to the common/model package.
2016-03-01 14:32:57 +01:00
Fabian Reinartz 75681b691a Extract HTTP client from Target.
The HTTP client is the same across all targets with the same
scrape configuration. Thus, this commit moves it into the scrape
pool.
2016-03-01 14:31:57 +01:00
Fabian Reinartz 9bea27ae8a Add scraping tests 2016-03-01 14:00:48 +01:00
Fabian Reinartz 76a8c6160d Deduplicate targets in scrape pool.
With this commit the scrape pool deduplicates incoming
targets before scraping them. This way multiple target providers
can produce the same target but it will be scraped only once.
2016-03-01 13:50:51 +01:00
Fabian Reinartz 84f74b9a84 Apply new scrape config on reload.
This commit updates a target set's scrape configuration
on reload. This will cause all running scrape loops to be
stopped and started again with new parameters.
2016-03-01 13:50:51 +01:00
Fabian Reinartz 02f635dc24 Remove interval/timeout from Target internals 2016-03-01 13:50:51 +01:00
Fabian Reinartz 775316f8d2 Move appender construction from Target to scrapePool 2016-03-01 13:50:51 +01:00
Fabian Reinartz fbe251c2df Fix scrape interval length calculation 2016-03-01 13:48:36 +01:00
Fabian Reinartz 1a3253e8ed Make scrape time unambigious.
This commit changes the scraper interface to accept a timestamp
so the reported timestamp by the caller and the timestamp
attached to samples does not differ.
2016-03-01 13:48:36 +01:00
Fabian Reinartz c7bbe95597 Remove outdated target tests 2016-03-01 13:48:36 +01:00
Fabian Reinartz 05de8b7f8d Extract target scraping into scrape loop.
This commit factors out the scrape loop handling into
its own data structure.
For the transition it will be directly attached to the
target.
2016-03-01 13:48:36 +01:00
Fabian Reinartz 5bfa4cdd46 Simplify target update handling.
We group providers by their scrape configuration. Each provider produces
target groups with an unique identifier.

On stopping a set of target providers we cancel the target providers,
stop scraping the targets and wait for the scrapers to finish.

On configuration reload all provider sets are stopped and new ones
are created. This will make targets disappear briefly on configuration
reload. Potentially scrapes are missed but due to the consistent
scrape intervals implemented recently, the impact is minor.
2016-03-01 13:48:36 +01:00