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Turn target group members into plain lists.

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As the scrape pool deduplicates targets now, it is no longer necessary
to store a hash map for members of each group.
This commit is contained in:
Fabian Reinartz 2016-02-28 20:03:44 +01:00
parent 0d7105abee
commit 2060a0a15b
1 changed files with 9 additions and 12 deletions
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21
retrieval/targetmanager.go
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@ -176,7 +176,7 @@ type targetSet struct {
mtx sync.RWMutex
// Sets of targets by a source string that is unique across target providers.
tgroups map[string]map[uint64]*Target
tgroups map[string][]*Target
providers map[string]TargetProvider
scrapePool *scrapePool
@ -189,7 +189,7 @@ type targetSet struct {
func newTargetSet(cfg *config.ScrapeConfig, app storage.SampleAppender) *targetSet {
ts := &targetSet{
tgroups: map[string]map[uint64]*Target{},
tgroups: map[string][]*Target{},
scrapePool: newScrapePool(cfg, app),
syncCh: make(chan struct{}, 1),
config: cfg,
@ -247,13 +247,11 @@ Loop:
}
func (ts *targetSet) sync() {
targets := []*Target{}
for _, tgroup := range ts.tgroups {
for _, t := range tgroup {
targets = append(targets, t)
}
var all []*Target
for _, targets := range ts.tgroups {
all = append(all, targets...)
}
ts.scrapePool.sync(targets)
ts.scrapePool.sync(all)
}
func (ts *targetSet) runProviders(ctx context.Context, providers map[string]TargetProvider) {
@ -394,8 +392,8 @@ func providersFromConfig(cfg *config.ScrapeConfig) map[string]TargetProvider {
}
// targetsFromGroup builds targets based on the given TargetGroup and config.
func targetsFromGroup(tg *config.TargetGroup, cfg *config.ScrapeConfig) (map[uint64]*Target, error) {
targets := make(map[uint64]*Target, len(tg.Targets))
func targetsFromGroup(tg *config.TargetGroup, cfg *config.ScrapeConfig) ([]*Target, error) {
targets := make([]*Target, 0, len(tg.Targets))
for i, labels := range tg.Targets {
for k, v := range cfg.Params {
@ -464,8 +462,7 @@ func targetsFromGroup(tg *config.TargetGroup, cfg *config.ScrapeConfig) (map[uin
labels[model.InstanceLabel] = labels[model.AddressLabel]
}
tr := NewTarget(labels, preRelabelLabels, cfg.Params)
targets[tr.hash()] = tr
targets = append(targets, NewTarget(labels, preRelabelLabels, cfg.Params))
}
return targets, nil