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Merge pull request #1907 from prometheus/beorn7/sd

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retrieval: Clean up target group map on config reload
This commit is contained in:
Björn Rabenstein 2016-08-24 12:00:30 +02:00 committed by GitHub
commit 30cfee81a1
1 changed files with 6 additions and 3 deletions
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7
retrieval/targetmanager.go
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@ -181,7 +181,6 @@ type targetSet struct {
// Sets of targets by a source string that is unique across target providers.
tgroups map[string][]*Target
providers map[string]TargetProvider
scrapePool *scrapePool
config *config.ScrapeConfig
@ -193,7 +192,6 @@ type targetSet struct {
func newTargetSet(cfg *config.ScrapeConfig, app storage.SampleAppender) *targetSet {
ts := &targetSet{
tgroups: map[string][]*Target{},
scrapePool: newScrapePool(cfg, app),
syncCh: make(chan struct{}, 1),
config: cfg,
@ -272,6 +270,11 @@ func (ts *targetSet) runProviders(ctx context.Context, providers map[string]Targ
}
ctx, ts.cancelProviders = context.WithCancel(ctx)
// (Re-)create a fresh tgroups map to not keep stale targets around. We
// will retrieve all targets below anyway, so cleaning up everything is
// safe and doesn't inflict any additional cost.
ts.tgroups = map[string][]*Target{}
for name, prov := range providers {
wg.Add(1)