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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,204 @@ | ||
| // Copyright 2023 TiKV Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| // NOTE: The code in this file is based on code from the | ||
| // TiDB project, licensed under the Apache License v 2.0 | ||
| // | ||
| // https://github.com/pingcap/tidb/tree/cc5e161ac06827589c4966674597c137cc9e809c/store/tikv/util/execdetails.go | ||
| // | ||
|
|
||
| // Copyright 2023 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "encoding/json" | ||
| "fmt" | ||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/log" | ||
| "go.uber.org/zap" | ||
| "io" | ||
| "net/http" | ||
| "net/url" | ||
| "os" | ||
| "strings" | ||
| "syscall" | ||
| "time" | ||
| ) | ||
|
|
||
| // pd request retry time when connection fail | ||
| const ( | ||
| pdRequestRetryTime = 10 | ||
|
|
||
| clusterVersionPrefix = "pd/api/v1/config/cluster-version" | ||
| storeMinResolvedTSPrefix = "pd/api/v1/min-resolved-ts" | ||
| ) | ||
|
|
||
| // PdController manage get/update config from pd. | ||
| type PdController struct { | ||
| addrs []string | ||
| cli *http.Client | ||
| } | ||
|
|
||
| func NewPdController( | ||
| tlsConf *tls.Config, | ||
| pdAddrs []string, | ||
| ) *PdController { | ||
| for i, addr := range pdAddrs { | ||
| if !strings.HasPrefix(addr, "http") { | ||
| if tlsConf != nil { | ||
| addr = "https://" + addr | ||
| } else { | ||
| addr = "http://" + addr | ||
| } | ||
| pdAddrs[i] = addr | ||
| } | ||
| } | ||
|
|
||
| return &PdController{ | ||
| addrs: pdAddrs, | ||
| cli: httpClient(tlsConf), | ||
| } | ||
| } | ||
|
|
||
| // GetStoreMinResolvedTS get store-level min-resolved-ts from pd | ||
| func (p *PdController) GetStoreMinResolvedTS(ctx context.Context, storeID uint64) (uint64, error) { | ||
| var err error | ||
| for _, addr := range p.addrs { | ||
| query := fmt.Sprintf("%s/store_id=%d", storeMinResolvedTSPrefix, storeID) | ||
| v, e := pdRequest(ctx, addr, query, p.cli, http.MethodGet, nil) | ||
| if e != nil { | ||
| log.Warn("failed to get min resolved ts", zap.String("addr", addr), zap.Error(e)) | ||
| err = e | ||
| continue | ||
| } | ||
| log.Info("store min resolved ts", zap.String("resp", string(v))) | ||
| d := struct { | ||
| IsRealTime bool `json:"is_real_time,omitempty"` | ||
| MinResolvedTS uint64 `json:"min_resolved_ts"` | ||
| }{} | ||
| err = json.Unmarshal(v, &d) | ||
| if err != nil { | ||
| return 0, errors.Trace(err) | ||
| } | ||
| if !d.IsRealTime { | ||
| message := "store min resolved ts not enabled" | ||
| log.Error(message, zap.String("addr", addr)) | ||
| return 0, errors.Trace(errors.New(message)) | ||
| } | ||
| return d.MinResolvedTS, nil | ||
| } | ||
| return 0, errors.Trace(err) | ||
| } | ||
|
|
||
| // pdRequest is a func to send an HTTP to pd and return the result bytes. | ||
| func pdRequest( | ||
| ctx context.Context, | ||
| addr string, prefix string, | ||
| cli *http.Client, method string, body io.Reader) ([]byte, error) { | ||
| _, respBody, err := pdRequestWithCode(ctx, addr, prefix, cli, method, body) | ||
| return respBody, err | ||
| } | ||
|
|
||
| func pdRequestWithCode( | ||
| ctx context.Context, | ||
| addr string, prefix string, | ||
| cli *http.Client, method string, body io.Reader) (int, []byte, error) { | ||
| u, err := url.Parse(addr) | ||
| if err != nil { | ||
| return 0, nil, errors.Trace(err) | ||
| } | ||
| reqURL := fmt.Sprintf("%s/%s", u, prefix) | ||
| req, err := http.NewRequestWithContext(ctx, method, reqURL, body) | ||
| if err != nil { | ||
| return 0, nil, errors.Trace(err) | ||
| } | ||
| var resp *http.Response | ||
| count := 0 | ||
| for { | ||
| resp, err = cli.Do(req) | ||
| count++ | ||
|
|
||
| if _, e := EvalFailpoint("InjectClosed"); e == nil { | ||
| resp = nil | ||
| err = &url.Error{ | ||
| Op: "read", | ||
| Err: os.NewSyscallError("connect", syscall.ECONNREFUSED), | ||
| } | ||
| return 0, nil, errors.Trace(err) | ||
| } | ||
|
|
||
| if count > pdRequestRetryTime || (resp != nil && resp.StatusCode < 500) || | ||
| err != nil { | ||
| break | ||
| } | ||
| if resp != nil { | ||
| _ = resp.Body.Close() | ||
| } | ||
| time.Sleep(pdRequestRetryInterval()) | ||
| } | ||
| if err != nil { | ||
| return 0, nil, errors.Trace(err) | ||
| } | ||
| defer func() { | ||
| _ = resp.Body.Close() | ||
| }() | ||
|
|
||
| if resp.StatusCode != http.StatusOK { | ||
| res, _ := io.ReadAll(resp.Body) | ||
| return resp.StatusCode, nil, errors.Errorf("[%d] %s %s", resp.StatusCode, res, reqURL) | ||
| } | ||
|
|
||
| r, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return resp.StatusCode, nil, errors.Trace(err) | ||
| } | ||
| return resp.StatusCode, r, nil | ||
| } | ||
|
|
||
| func pdRequestRetryInterval() time.Duration { | ||
| if _, e := EvalFailpoint("FastRetry"); e == nil { | ||
| return 0 | ||
| } | ||
| println("pd request retry interval 1s") | ||
|
|
||
| return time.Second | ||
| } | ||
|
|
||
| // httpClient returns an HTTP(s) client. | ||
| func httpClient(tlsConf *tls.Config) *http.Client { | ||
| // defaultTimeout for non-context requests. | ||
| const defaultTimeout = 30 * time.Second | ||
| cli := &http.Client{Timeout: defaultTimeout} | ||
| if tlsConf != nil { | ||
| transport := http.DefaultTransport.(*http.Transport).Clone() | ||
| transport.TLSClientConfig = tlsConf | ||
| cli.Transport = transport | ||
| } | ||
| return cli | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| // Copyright 2023 TiKV Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| // NOTE: The code in this file is based on code from the | ||
| // TiDB project, licensed under the Apache License v 2.0 | ||
| // | ||
| // https://github.com/pingcap/tidb/tree/cc5e161ac06827589c4966674597c137cc9e809c/store/tikv/util/rate_limit_test.go | ||
| // | ||
|
|
||
| // Copyright 2023 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "github.com/pingcap/failpoint" | ||
| "github.com/stretchr/testify/require" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
| ) | ||
|
|
||
| func TestPDRequestRetry(t *testing.T) { | ||
| EnableFailpoints() | ||
| ctx := context.Background() | ||
| require := require.New(t) | ||
|
|
||
| require.Nil(failpoint.Enable("tikvclient/FastRetry", `return()`)) | ||
| defer func() { | ||
| require.Nil(failpoint.Disable("tikvclient/FastRetry")) | ||
| }() | ||
|
|
||
| count := 0 | ||
| ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| count++ | ||
| if count <= pdRequestRetryTime-1 { | ||
| w.WriteHeader(http.StatusGatewayTimeout) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusOK) | ||
| })) | ||
| cli := http.DefaultClient | ||
| taddr := ts.URL | ||
| _, reqErr := pdRequest(ctx, taddr, "", cli, http.MethodGet, nil) | ||
| require.Nil(reqErr) | ||
| ts.Close() | ||
|
|
||
| count = 0 | ||
| ts = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| count++ | ||
| if count <= pdRequestRetryTime+1 { | ||
| w.WriteHeader(http.StatusGatewayTimeout) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusOK) | ||
| })) | ||
| taddr = ts.URL | ||
| _, reqErr = pdRequest(ctx, taddr, "", cli, http.MethodGet, nil) | ||
| require.Error(reqErr) | ||
| ts.Close() | ||
|
|
||
| require.Nil(failpoint.Enable("tikvclient/InjectClosed", fmt.Sprintf("return(%d)", 0))) | ||
| defer func() { | ||
| require.Nil(failpoint.Disable("tikvclient/InjectClosed")) | ||
| }() | ||
| ts = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| w.WriteHeader(http.StatusOK) | ||
| })) | ||
| taddr = ts.URL | ||
| _, reqErr = pdRequest(ctx, taddr, "", cli, http.MethodGet, nil) | ||
| require.Error(reqErr) | ||
| ts.Close() | ||
| } |