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Merge pull request PelicanPlatform#960 from haoming29/dir-based-cache…
…-tests Director based cache health tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /*************************************************************** | ||
| * | ||
| * Copyright (C) 2024, Pelican Project, Morgridge Institute for Research | ||
| * | ||
| * 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 cache | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "os" | ||
| "path/filepath" | ||
| "time" | ||
|
|
||
| "github.com/gin-gonic/gin" | ||
| "github.com/pelicanplatform/pelican/param" | ||
| "github.com/pelicanplatform/pelican/server_utils" | ||
| "golang.org/x/sync/errgroup" | ||
| ) | ||
|
|
||
| var ( | ||
| notificationChan = make(chan bool) | ||
| ) | ||
|
|
||
| func RegisterCacheAPI(router *gin.Engine, ctx context.Context, egrp *errgroup.Group) { | ||
| // start the timer for the director test report timeout | ||
| server_utils.LaunchPeriodicDirectorTimeout(ctx, egrp, notificationChan) | ||
|
|
||
| group := router.Group("/api/v1.0/cache") | ||
| { | ||
| group.POST("/directorTest", func(ginCtx *gin.Context) { server_utils.HandleDirectorTestResponse(ginCtx, notificationChan) }) | ||
| } | ||
| } | ||
|
|
||
| // Periodically scan the /<runLocation>/pelican/monitoring directory to clean up test files | ||
| func LaunchDirectorTestFileCleanup(ctx context.Context) { | ||
| server_utils.LaunchWatcherMaintenance(ctx, | ||
| []string{filepath.Join(param.Cache_DataLocation.GetString(), "pelican", "monitoring")}, | ||
| "cache director-based health test clean up", | ||
| time.Minute, | ||
| func(notifyEvent bool) error { | ||
| // We run this function regardless of notifyEvent to do the cleanup | ||
| dirPath := filepath.Join(param.Cache_DataLocation.GetString(), "pelican", "monitoring") | ||
| dirInfo, err := os.Stat(dirPath) | ||
| if err != nil { | ||
| return err | ||
| } else { | ||
| if !dirInfo.IsDir() { | ||
| return errors.New("monitoring path is not a directory: " + dirPath) | ||
| } | ||
| } | ||
| dirItems, err := os.ReadDir(dirPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if len(dirItems) <= 2 { // At mininum there are the test file and .cinfo file, and we don't want to remove the last two | ||
| return nil | ||
| } | ||
| for idx, item := range dirItems { | ||
| // For all but the latest two files (test file and its .cinfo file) | ||
| // os.ReadDir sorts dirEntries in order of file names. Since our test file names are timestamped and is string comparable, | ||
| // the last two files should be the latest test files, which we want to keep | ||
| if idx < len(dirItems)-2 { | ||
| err := os.Remove(filepath.Join(dirPath, item.Name())) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| }, | ||
| ) | ||
| } |
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