315 lines
11 KiB
Go
315 lines
11 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package issues
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import (
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"context"
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"fmt"
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"os"
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"runtime/pprof"
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"sync/atomic"
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"time"
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db_model "code.gitea.io/gitea/models/db"
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repo_model "code.gitea.io/gitea/models/repo"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/indexer/issues/bleve"
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"code.gitea.io/gitea/modules/indexer/issues/db"
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"code.gitea.io/gitea/modules/indexer/issues/elasticsearch"
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"code.gitea.io/gitea/modules/indexer/issues/internal"
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"code.gitea.io/gitea/modules/indexer/issues/meilisearch"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/optional"
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"code.gitea.io/gitea/modules/process"
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"code.gitea.io/gitea/modules/queue"
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"code.gitea.io/gitea/modules/setting"
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)
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// IndexerMetadata is used to send data to the queue, so it contains only the ids.
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// It may look weired, because it has to be compatible with the old queue data format.
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// If the IsDelete flag is true, the IDs specify the issues to delete from the index without querying the database.
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// If the IsDelete flag is false, the ID specify the issue to index, so Indexer will query the database to get the issue data.
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// It should be noted that if the id is not existing in the database, it's index will be deleted too even if IsDelete is false.
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// Valid values:
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// - IsDelete = true, IDs = [1, 2, 3], and ID will be ignored
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// - IsDelete = false, ID = 1, and IDs will be ignored
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type IndexerMetadata struct {
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ID int64 `json:"id"`
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IsDelete bool `json:"is_delete"`
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IDs []int64 `json:"ids"`
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}
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var (
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// issueIndexerQueue queue of issue ids to be updated
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issueIndexerQueue *queue.WorkerPoolQueue[*IndexerMetadata]
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// globalIndexer is the global indexer, it cannot be nil.
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// When the real indexer is not ready, it will be a dummy indexer which will return error to explain it's not ready.
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// So it's always safe use it as *globalIndexer.Load() and call its methods.
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globalIndexer atomic.Pointer[internal.Indexer]
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dummyIndexer *internal.Indexer
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)
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func init() {
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i := internal.NewDummyIndexer()
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dummyIndexer = &i
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globalIndexer.Store(dummyIndexer)
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}
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// InitIssueIndexer initialize issue indexer, syncReindex is true then reindex until
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// all issue index done.
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func InitIssueIndexer(syncReindex bool) {
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ctx, _, finished := process.GetManager().AddTypedContext(context.Background(), "Service: IssueIndexer", process.SystemProcessType, false)
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indexerInitWaitChannel := make(chan time.Duration, 1)
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// Create the Queue
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issueIndexerQueue = queue.CreateUniqueQueue(ctx, "issue_indexer", getIssueIndexerQueueHandler(ctx))
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graceful.GetManager().RunAtTerminate(finished)
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// Create the Indexer
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go func() {
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pprof.SetGoroutineLabels(ctx)
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start := time.Now()
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log.Info("PID %d: Initializing Issue Indexer: %s", os.Getpid(), setting.Indexer.IssueType)
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var (
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issueIndexer internal.Indexer
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existed bool
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err error
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)
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switch setting.Indexer.IssueType {
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case "bleve":
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defer func() {
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if err := recover(); err != nil {
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log.Error("PANIC whilst initializing issue indexer: %v\nStacktrace: %s", err, log.Stack(2))
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log.Error("The indexer files are likely corrupted and may need to be deleted")
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log.Error("You can completely remove the %q directory to make Forgejo recreate the indexes", setting.Indexer.IssuePath)
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globalIndexer.Store(dummyIndexer)
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log.Fatal("PID: %d Unable to initialize the Bleve Issue Indexer at path: %s Error: %v", os.Getpid(), setting.Indexer.IssuePath, err)
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}
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}()
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issueIndexer = bleve.NewIndexer(setting.Indexer.IssuePath)
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existed, err = issueIndexer.Init(ctx)
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if err != nil {
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log.Fatal("Unable to initialize Bleve Issue Indexer at path: %s Error: %v", setting.Indexer.IssuePath, err)
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}
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case "elasticsearch":
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issueIndexer = elasticsearch.NewIndexer(setting.Indexer.IssueConnStr, setting.Indexer.IssueIndexerName)
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existed, err = issueIndexer.Init(ctx)
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if err != nil {
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log.Fatal("Unable to issueIndexer.Init with connection %s Error: %v", setting.Indexer.IssueConnStr, err)
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}
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case "db":
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issueIndexer = db.NewIndexer()
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case "meilisearch":
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issueIndexer = meilisearch.NewIndexer(setting.Indexer.IssueConnStr, setting.Indexer.IssueConnAuth, setting.Indexer.IssueIndexerName)
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existed, err = issueIndexer.Init(ctx)
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if err != nil {
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log.Fatal("Unable to issueIndexer.Init with connection %s Error: %v", setting.Indexer.IssueConnStr, err)
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}
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default:
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log.Fatal("Unknown issue indexer type: %s", setting.Indexer.IssueType)
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}
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globalIndexer.Store(&issueIndexer)
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graceful.GetManager().RunAtTerminate(func() {
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log.Debug("Closing issue indexer")
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(*globalIndexer.Load()).Close()
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log.Info("PID: %d Issue Indexer closed", os.Getpid())
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})
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// Start processing the queue
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go graceful.GetManager().RunWithCancel(issueIndexerQueue)
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// Populate the index
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if !existed {
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if syncReindex {
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graceful.GetManager().RunWithShutdownContext(populateIssueIndexer)
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} else {
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go graceful.GetManager().RunWithShutdownContext(populateIssueIndexer)
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}
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}
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indexerInitWaitChannel <- time.Since(start)
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close(indexerInitWaitChannel)
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}()
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if syncReindex {
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select {
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case <-indexerInitWaitChannel:
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case <-graceful.GetManager().IsShutdown():
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}
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} else if setting.Indexer.StartupTimeout > 0 {
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go func() {
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pprof.SetGoroutineLabels(ctx)
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timeout := setting.Indexer.StartupTimeout
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if graceful.GetManager().IsChild() && setting.GracefulHammerTime > 0 {
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timeout += setting.GracefulHammerTime
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}
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select {
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case duration := <-indexerInitWaitChannel:
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log.Info("Issue Indexer Initialization took %v", duration)
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case <-graceful.GetManager().IsShutdown():
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log.Warn("Shutdown occurred before issue index initialisation was complete")
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case <-time.After(timeout):
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issueIndexerQueue.ShutdownWait(5 * time.Second)
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log.Fatal("Issue Indexer Initialization timed-out after: %v", timeout)
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}
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}()
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}
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}
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func getIssueIndexerQueueHandler(ctx context.Context) func(items ...*IndexerMetadata) []*IndexerMetadata {
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return func(items ...*IndexerMetadata) []*IndexerMetadata {
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var unhandled []*IndexerMetadata
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indexer := *globalIndexer.Load()
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for _, item := range items {
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log.Trace("IndexerMetadata Process: %d %v %t", item.ID, item.IDs, item.IsDelete)
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if item.IsDelete {
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if err := indexer.Delete(ctx, item.IDs...); err != nil {
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log.Error("Issue indexer handler: failed to from index: %v Error: %v", item.IDs, err)
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unhandled = append(unhandled, item)
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}
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continue
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}
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data, existed, err := getIssueIndexerData(ctx, item.ID)
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if err != nil {
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log.Error("Issue indexer handler: failed to get issue data of %d: %v", item.ID, err)
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unhandled = append(unhandled, item)
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continue
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}
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if !existed {
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if err := indexer.Delete(ctx, item.ID); err != nil {
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log.Error("Issue indexer handler: failed to delete issue %d from index: %v", item.ID, err)
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unhandled = append(unhandled, item)
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}
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continue
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}
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if err := indexer.Index(ctx, data); err != nil {
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log.Error("Issue indexer handler: failed to index issue %d: %v", item.ID, err)
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unhandled = append(unhandled, item)
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continue
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}
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}
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return unhandled
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}
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}
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// populateIssueIndexer populate the issue indexer with issue data
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func populateIssueIndexer(ctx context.Context) {
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ctx, _, finished := process.GetManager().AddTypedContext(ctx, "Service: PopulateIssueIndexer", process.SystemProcessType, true)
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defer finished()
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ctx = contextWithKeepRetry(ctx) // keep retrying since it's a background task
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if err := PopulateIssueIndexer(ctx); err != nil {
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log.Error("Issue indexer population failed: %v", err)
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}
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}
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func PopulateIssueIndexer(ctx context.Context) error {
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for page := 1; ; page++ {
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select {
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case <-ctx.Done():
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return fmt.Errorf("shutdown before completion: %w", ctx.Err())
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default:
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}
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repos, _, err := repo_model.SearchRepositoryByName(ctx, &repo_model.SearchRepoOptions{
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ListOptions: db_model.ListOptions{Page: page, PageSize: repo_model.RepositoryListDefaultPageSize},
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OrderBy: db_model.SearchOrderByID,
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Private: true,
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Collaborate: optional.Some(false),
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})
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if err != nil {
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log.Error("SearchRepositoryByName: %v", err)
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continue
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}
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if len(repos) == 0 {
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log.Debug("Issue Indexer population complete")
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return nil
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}
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for _, repo := range repos {
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if err := updateRepoIndexer(ctx, repo.ID); err != nil {
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return fmt.Errorf("populate issue indexer for repo %d: %v", repo.ID, err)
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}
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}
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}
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}
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// UpdateRepoIndexer add/update all issues of the repositories
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func UpdateRepoIndexer(ctx context.Context, repoID int64) {
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if err := updateRepoIndexer(ctx, repoID); err != nil {
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log.Error("Unable to push repo %d to issue indexer: %v", repoID, err)
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}
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}
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// UpdateIssueIndexer add/update an issue to the issue indexer
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func UpdateIssueIndexer(ctx context.Context, issueID int64) {
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if err := updateIssueIndexer(ctx, issueID); err != nil {
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log.Error("Unable to push issue %d to issue indexer: %v", issueID, err)
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}
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}
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// DeleteRepoIssueIndexer deletes repo's all issues indexes
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func DeleteRepoIssueIndexer(ctx context.Context, repoID int64) {
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if err := deleteRepoIssueIndexer(ctx, repoID); err != nil {
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log.Error("Unable to push deleted repo %d to issue indexer: %v", repoID, err)
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}
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}
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// IsAvailable checks if issue indexer is available
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func IsAvailable(ctx context.Context) bool {
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return (*globalIndexer.Load()).Ping(ctx) == nil
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}
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// SearchOptions indicates the options for searching issues
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type SearchOptions = internal.SearchOptions
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const (
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SortByCreatedDesc = internal.SortByCreatedDesc
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SortByUpdatedDesc = internal.SortByUpdatedDesc
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SortByCommentsDesc = internal.SortByCommentsDesc
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SortByDeadlineDesc = internal.SortByDeadlineDesc
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SortByCreatedAsc = internal.SortByCreatedAsc
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SortByUpdatedAsc = internal.SortByUpdatedAsc
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SortByCommentsAsc = internal.SortByCommentsAsc
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SortByDeadlineAsc = internal.SortByDeadlineAsc
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)
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// SearchIssues search issues by options.
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func SearchIssues(ctx context.Context, opts *SearchOptions) ([]int64, int64, error) {
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indexer := *globalIndexer.Load()
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if opts.Keyword == "" {
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// This is a conservative shortcut.
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// If the keyword is empty, db has better (at least not worse) performance to filter issues.
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// When the keyword is empty, it tends to listing rather than searching issues.
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// So if the user creates an issue and list issues immediately, the issue may not be listed because the indexer needs time to index the issue.
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// Even worse, the external indexer like elastic search may not be available for a while,
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// and the user may not be able to list issues completely until it is available again.
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indexer = db.NewIndexer()
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}
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result, err := indexer.Search(ctx, opts)
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if err != nil {
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return nil, 0, err
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}
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ret := make([]int64, 0, len(result.Hits))
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for _, hit := range result.Hits {
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ret = append(ret, hit.ID)
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}
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return ret, result.Total, nil
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}
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// CountIssues counts issues by options. It is a shortcut of SearchIssues(ctx, opts) but only returns the total count.
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func CountIssues(ctx context.Context, opts *SearchOptions) (int64, error) {
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opts = opts.Copy(func(options *SearchOptions) { options.Paginator = &db_model.ListOptions{PageSize: 0} })
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_, total, err := SearchIssues(ctx, opts)
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return total, err
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}
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