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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| // 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 handler | ||
|
|
||
| import ( | ||
| "net/http" | ||
|
|
||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/tidb/kv" | ||
| "github.com/pingcap/tidb/session" | ||
| "github.com/pingcap/tidb/util/logutil" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| // ClusterUpgradeHandler is the handler for upgrading cluster. | ||
| type ClusterUpgradeHandler struct { | ||
| store kv.Storage | ||
| } | ||
|
|
||
| // NewClusterUpgradeHandler creates a new ClusterUpgradeHandler. | ||
| func NewClusterUpgradeHandler(store kv.Storage) *ClusterUpgradeHandler { | ||
| return &ClusterUpgradeHandler{store: store} | ||
| } | ||
|
|
||
| // ServeHTTP handles request of ddl server info. | ||
| func (h ClusterUpgradeHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) { | ||
| if req.Method != http.MethodPost { | ||
| WriteError(w, errors.Errorf("This API only support POST method")) | ||
| return | ||
| } | ||
|
|
||
| var err error | ||
| var hasDone bool | ||
| op := req.FormValue("op") | ||
| switch op { | ||
| case "start": | ||
| hasDone, err = h.startUpgrade() | ||
| case "finish": | ||
| hasDone, err = h.finishUpgrade() | ||
| default: | ||
| WriteError(w, errors.Errorf("wrong operation:%s", op)) | ||
| return | ||
| } | ||
|
|
||
| if err != nil { | ||
| WriteError(w, err) | ||
| return | ||
| } | ||
| if hasDone { | ||
| switch op { | ||
| case "start": | ||
| WriteData(w, "Be upgrading.") | ||
| case "finish": | ||
| WriteData(w, "Be normal.") | ||
| } | ||
| } | ||
| WriteData(w, "success!") | ||
| logutil.Logger(req.Context()).Info("upgrade op success", | ||
| zap.String("category", "upgrading"), zap.String("op", req.FormValue("op")), zap.Bool("hasDone", hasDone)) | ||
| } | ||
|
|
||
| func (h ClusterUpgradeHandler) startUpgrade() (hasDone bool, err error) { | ||
| se, err := session.CreateSession(h.store) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| defer se.Close() | ||
|
|
||
| isUpgrading, err := session.IsUpgradingClusterState(se) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| if isUpgrading { | ||
| return true, nil | ||
| } | ||
|
|
||
| err = session.SyncUpgradeState(se) | ||
| return false, err | ||
| } | ||
|
|
||
| func (h ClusterUpgradeHandler) finishUpgrade() (hasDone bool, err error) { | ||
| se, err := session.CreateSession(h.store) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| defer se.Close() | ||
|
|
||
| isUpgrading, err := session.IsUpgradingClusterState(se) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| if !isUpgrading { | ||
| return true, nil | ||
| } | ||
|
|
||
| err = session.SyncNormalRunning(se) | ||
| return false, err | ||
| } |
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