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app/vmselect/prometheus: explain why partial responses are disallowed during data export

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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1148
This commit is contained in:
Aliaksandr Valialkin 2021-03-25 18:38:49 +02:00
parent 4ee2f83bda
commit 698ccca6ad
1 changed files with 2 additions and 0 deletions
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2
app/vmselect/prometheus/prometheus.go
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@ -365,6 +365,8 @@ func exportHandler(at *auth.Token, w http.ResponseWriter, r *http.Request, match
resultsCh := make(chan *quicktemplate.ByteBuffer, cgroup.AvailableCPUs())
doneCh := make(chan error)
if !reduceMemUsage {
// Unconditionally deny partial response for the exported data,
// since users usually expect that the exported data is full.
denyPartialResponse := true
rss, _, err := netstorage.ProcessSearchQuery(at, denyPartialResponse, sq, true, deadline)
if err != nil {