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queryRange: Add more descriptive error messages (#5229) 

Fixes: https://github.com/prometheus/prometheus/issues/4811

Signed-off-by: Palash Nigam <npalash25@gmail.com>
pull/5226/head^2
Palash Nigam 2019-02-20 00:46:14 +05:30 committed by Julius Volz
parent a3c41f4256
commit 09208b1a58
1 changed files with 7 additions and 0 deletions
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7
web/api/v1/api.go
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@ -266,6 +266,7 @@ func (api *API) query(r *http.Request) apiFuncResult {
var err error
ts, err = parseTime(t)
if err != nil {
err = fmt.Errorf("invalid parameter 'time': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}
} else {
@ -277,6 +278,7 @@ func (api *API) query(r *http.Request) apiFuncResult {
var cancel context.CancelFunc
timeout, err := parseDuration(to)
if err != nil {
err = fmt.Errorf("invalid parameter 'timeout': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}
@ -286,6 +288,7 @@ func (api *API) query(r *http.Request) apiFuncResult {
qry, err := api.QueryEngine.NewInstantQuery(api.Queryable, r.FormValue("query"), ts)
if err != nil {
err = fmt.Errorf("invalid parameter 'query': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}
@ -310,10 +313,12 @@ func (api *API) query(r *http.Request) apiFuncResult {
func (api *API) queryRange(r *http.Request) apiFuncResult {
start, err := parseTime(r.FormValue("start"))
if err != nil {
err = fmt.Errorf("invalid parameter 'start': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}
end, err := parseTime(r.FormValue("end"))
if err != nil {
err = fmt.Errorf("invalid parameter 'end': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}
if end.Before(start) {
@ -323,6 +328,7 @@ func (api *API) queryRange(r *http.Request) apiFuncResult {
step, err := parseDuration(r.FormValue("step"))
if err != nil {
err = fmt.Errorf("invalid parameter 'step': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}
@ -343,6 +349,7 @@ func (api *API) queryRange(r *http.Request) apiFuncResult {
var cancel context.CancelFunc
timeout, err := parseDuration(to)
if err != nil {
err = fmt.Errorf("invalid parameter 'timeout': %s", err)
return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
}