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app/vmselect: add /internl/resetRollupResultCache handler for resetting response cache

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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/312
This commit is contained in:
Aliaksandr Valialkin 2020-02-21 13:53:18 +02:00
parent 5431f9cd4e
commit 539139391c
1 changed files with 11 additions and 1 deletions
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12
app/vmselect/main.go
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@ -23,7 +23,8 @@ var (
deleteAuthKey = flag.String("deleteAuthKey", "", "authKey for metrics' deletion via /api/v1/admin/tsdb/delete_series")
maxConcurrentRequests = flag.Int("search.maxConcurrentRequests", getDefaultMaxConcurrentRequests(), "The maximum number of concurrent search requests. "+
"It shouldn't be high, since a single request can saturate all the CPU cores. See also -search.maxQueueDuration")
maxQueueDuration = flag.Duration("search.maxQueueDuration", 10*time.Second, "The maximum time the request waits for execution when -search.maxConcurrentRequests limit is reached")
maxQueueDuration = flag.Duration("search.maxQueueDuration", 10*time.Second, "The maximum time the request waits for execution when -search.maxConcurrentRequests limit is reached")
resetCacheAuthKey = flag.String("search.resetCacheAuthKey", "", "Optional authKey for resetting rollup cache via /internal/resetCache call")
)
func getDefaultMaxConcurrentRequests() int {
@ -99,6 +100,15 @@ func RequestHandler(w http.ResponseWriter, r *http.Request) bool {
}
path := strings.Replace(r.URL.Path, "//", "/", -1)
if path == "/internal/resetRollupResultCache" {
if len(*resetCacheAuthKey) > 0 && r.FormValue("authKey") != *resetCacheAuthKey {
sendPrometheusError(w, r, fmt.Errorf("invalid authKey=%q for %q", r.FormValue("authKey"), path))
return true
}
promql.ResetRollupResultCache()
return true
}
if strings.HasPrefix(path, "/api/v1/label/") {
s := r.URL.Path[len("/api/v1/label/"):]
if strings.HasSuffix(s, "/values") {