-
Notifications
You must be signed in to change notification settings - Fork 454
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[query] Add graphite query path (#1308)
Adds processing for carbon queries, handling the find and query endpoints.
- Loading branch information
Showing
81 changed files
with
17,730 additions
and
75 deletions.
There are no files selected for viewing
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -68,5 +68,3 @@ ingest: | |
| handler: | ||
| protobufEnabled: true | ||
|
|
||
| carbon: | ||
| enabled: true | ||
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,197 @@ | ||
| // Copyright (c) 2019 Uber Technologies, Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| package graphite | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "math" | ||
| "net/http" | ||
| "sort" | ||
| "sync" | ||
|
|
||
| "github.com/m3db/m3/src/query/api/v1/handler" | ||
| "github.com/m3db/m3/src/query/graphite/common" | ||
| "github.com/m3db/m3/src/query/graphite/errors" | ||
| "github.com/m3db/m3/src/query/graphite/native" | ||
| graphite "github.com/m3db/m3/src/query/graphite/storage" | ||
| "github.com/m3db/m3/src/query/graphite/ts" | ||
| "github.com/m3db/m3/src/query/storage" | ||
| "github.com/m3db/m3/src/x/net/http" | ||
| ) | ||
|
|
||
| const ( | ||
| // ReadURL is the url for the graphite query handler. | ||
| ReadURL = handler.RoutePrefixV1 + "/graphite/render" | ||
| ) | ||
|
|
||
| var ( | ||
| // ReadHTTPMethods is the HTTP methods used with this resource. | ||
| ReadHTTPMethods = []string{http.MethodGet, http.MethodPost} | ||
| ) | ||
|
|
||
| // A renderHandler implements the graphite /render endpoint, including full | ||
| // support for executing functions. It only works against data in M3. | ||
| type renderHandler struct { | ||
| engine *native.Engine | ||
| } | ||
|
|
||
| type respError struct { | ||
| err error | ||
| code int | ||
| } | ||
|
|
||
| // NewRenderHandler returns a new render handler around the given storage. | ||
| func NewRenderHandler( | ||
| storage storage.Storage, | ||
| ) http.Handler { | ||
| wrappedStore := graphite.NewM3WrappedStorage(storage) | ||
| return &renderHandler{ | ||
| engine: native.NewEngine(wrappedStore), | ||
| } | ||
| } | ||
|
|
||
| func sendError(errorCh chan error, err error) { | ||
| select { | ||
| case errorCh <- err: | ||
| default: | ||
| } | ||
| } | ||
|
|
||
| // ServeHTTP processes the render requests. | ||
| func (h *renderHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { | ||
| respErr := h.serveHTTP(w, r) | ||
| if respErr.err != nil { | ||
| xhttp.Error(w, respErr.err, respErr.code) | ||
| } | ||
| } | ||
|
|
||
| func (h *renderHandler) serveHTTP( | ||
| w http.ResponseWriter, | ||
| r *http.Request, | ||
| ) respError { | ||
| reqCtx := context.WithValue(r.Context(), handler.HeaderKey, r.Header) | ||
| p, err := ParseRenderRequest(r) | ||
| if err != nil { | ||
| return respError{err: err, code: http.StatusBadRequest} | ||
| } | ||
|
|
||
| var ( | ||
| results = make([]ts.SeriesList, len(p.Targets)) | ||
| errorCh = make(chan error, 1) | ||
| mu sync.Mutex | ||
| ) | ||
|
|
||
| ctx := common.NewContext(common.ContextOptions{ | ||
| Engine: h.engine, | ||
| Start: p.From, | ||
| End: p.Until, | ||
| Timeout: p.Timeout, | ||
| }) | ||
|
|
||
| // Set the request context. | ||
| ctx.SetRequestContext(reqCtx) | ||
| defer ctx.Close() | ||
|
|
||
| var wg sync.WaitGroup | ||
| wg.Add(len(p.Targets)) | ||
| for i, target := range p.Targets { | ||
| i, target := i, target | ||
| go func() { | ||
| // Log the query that causes us to panic. | ||
| defer func() { | ||
| if err := recover(); err != nil { | ||
| panic(fmt.Errorf("panic executing query '%s': %v", target, err)) | ||
| } | ||
| }() | ||
|
|
||
| childCtx := ctx.NewChildContext(common.NewChildContextOptions()) | ||
| defer func() { | ||
| childCtx.Close() | ||
| wg.Done() | ||
| }() | ||
|
|
||
| exp, err := h.engine.Compile(target) | ||
| if err != nil { | ||
| sendError(errorCh, errors.NewRenamedError(err, | ||
| fmt.Errorf("invalid 'target': %s => %s", target, err))) | ||
| return | ||
| } | ||
|
|
||
| targetSeries, err := exp.Execute(childCtx) | ||
| if err != nil { | ||
| sendError(errorCh, errors.NewRenamedError(err, | ||
| fmt.Errorf("error: target %s returned %s", target, err))) | ||
| return | ||
| } | ||
|
|
||
| for i, s := range targetSeries.Values { | ||
| if s.Len() <= int(p.MaxDataPoints) { | ||
| continue | ||
| } | ||
|
|
||
| var ( | ||
| samplingMultiplier = math.Ceil(float64(s.Len()) / float64(p.MaxDataPoints)) | ||
| newMillisPerStep = int(samplingMultiplier * float64(s.MillisPerStep())) | ||
| ) | ||
| targetSeries.Values[i] = ts.LTTB(s, s.StartTime(), s.EndTime(), newMillisPerStep) | ||
| } | ||
|
|
||
| mu.Lock() | ||
| results[i] = targetSeries | ||
| mu.Unlock() | ||
| }() | ||
| } | ||
|
|
||
| wg.Wait() | ||
| close(errorCh) | ||
| err = <-errorCh | ||
| if err != nil { | ||
| return respError{err: err, code: http.StatusInternalServerError} | ||
| } | ||
|
|
||
| // Count and sort the groups if not sorted already. | ||
| // NB(r): For certain things like stacking different targets in Grafana | ||
| // returning targets in order matters to give a deterministic order for | ||
| // the series to display when stacking. However we should only mutate | ||
| // the order if no expressions have explicitly applied their own sort. | ||
| numSeries := 0 | ||
| for _, r := range results { | ||
| numSeries += r.Len() | ||
| if !r.SortApplied { | ||
| sort.Stable(ts.SeriesByName(r.Values)) | ||
| } | ||
| } | ||
|
|
||
| series := make([]*ts.Series, 0, numSeries) | ||
| for _, r := range results { | ||
| series = append(series, r.Values...) | ||
| } | ||
|
|
||
| // We've always sorted the response by this point | ||
| response := ts.SeriesList{ | ||
| Values: series, | ||
| SortApplied: true, | ||
| } | ||
|
|
||
| err = WriteRenderResponse(w, response) | ||
| return respError{err: err, code: http.StatusOK} | ||
| } |
Oops, something went wrong.