scrape: simplify TargetsActive function

Since everything was serialized on a single mutex, it's exactly the same
if we process targets in sequence without starting goroutines.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
This commit is contained in:
Bryan Boreham 2023-11-20 19:28:05 +00:00
parent aaf5d643b6
commit f095c33da1

View File

@ -279,24 +279,10 @@ func (m *Manager) TargetsActive() map[string][]*Target {
m.mtxScrape.Lock()
defer m.mtxScrape.Unlock()
var (
wg sync.WaitGroup
mtx sync.Mutex
)
targets := make(map[string][]*Target, len(m.scrapePools))
wg.Add(len(m.scrapePools))
for tset, sp := range m.scrapePools {
// Running in parallel limits the blocking time of scrapePool to scrape
// interval when there's an update from SD.
go func(tset string, sp *scrapePool) {
mtx.Lock()
targets[tset] = sp.ActiveTargets()
mtx.Unlock()
wg.Done()
}(tset, sp)
targets[tset] = sp.ActiveTargets()
}
wg.Wait()
return targets
}