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Fix index generation parallelly failure (#25235) 

Fix #22109

---------

Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
Lunny Xiao 2023-06-15 08:14:43 +08:00 committed by GitHub
parent 5440d37c70
commit cc3910d8c3
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 71 additions and 0 deletions
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29
models/db/index.go
View File

@ -89,6 +89,33 @@ func mysqlGetNextResourceIndex(ctx context.Context, tableName string, groupID in
return idx, nil
}
func mssqlGetNextResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
if _, err := GetEngine(ctx).Exec(fmt.Sprintf(`
MERGE INTO %s WITH (HOLDLOCK) AS target
USING (SELECT %d AS group_id) AS source
(group_id)
ON target.group_id = source.group_id
WHEN MATCHED
THEN UPDATE
SET max_index = max_index + 1
WHEN NOT MATCHED
THEN INSERT (group_id, max_index)
VALUES (%d, 1);
`, tableName, groupID, groupID)); err != nil {
return 0, err
}
var idx int64
_, err := GetEngine(ctx).SQL(fmt.Sprintf("SELECT max_index FROM %s WHERE group_id = ?", tableName), groupID).Get(&idx)
if err != nil {
return 0, err
}
if idx == 0 {
return 0, errors.New("cannot get the correct index")
}
return idx, nil
}
// GetNextResourceIndex generates a resource index, it must run in the same transaction where the resource is created
func GetNextResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
switch {
@ -96,6 +123,8 @@ func GetNextResourceIndex(ctx context.Context, tableName string, groupID int64)
return postgresGetNextResourceIndex(ctx, tableName, groupID)
case setting.Database.Type.IsMySQL():
return mysqlGetNextResourceIndex(ctx, tableName, groupID)
case setting.Database.Type.IsMSSQL():
return mssqlGetNextResourceIndex(ctx, tableName, groupID)
}
e := GetEngine(ctx)

34
models/git/commit_status.go
View File

@ -83,13 +83,47 @@ func mysqlGetCommitStatusIndex(ctx context.Context, repoID int64, sha string) (i
return idx, nil
}
func mssqlGetCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
if _, err := db.GetEngine(ctx).Exec(`
MERGE INTO commit_status_index WITH (HOLDLOCK) AS target
USING (SELECT ? AS repo_id, ? AS sha) AS source
(repo_id, sha)
ON target.repo_id = source.repo_id AND target.sha = source.sha
WHEN MATCHED
THEN UPDATE
SET max_index = max_index + 1
WHEN NOT MATCHED
THEN INSERT (repo_id, sha, max_index)
VALUES (?, ?, 1);
`, repoID, sha, repoID, sha); err != nil {
return 0, err
}
var idx int64
_, err := db.GetEngine(ctx).SQL("SELECT max_index FROM `commit_status_index` WHERE repo_id = ? AND sha = ?",
repoID, sha).Get(&idx)
if err != nil {
return 0, err
}
if idx == 0 {
return 0, errors.New("cannot get the correct index")
}
return idx, nil
}
// GetNextCommitStatusIndex retried 3 times to generate a resource index
func GetNextCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
if !git.IsValidSHAPattern(sha) {
return 0, git.ErrInvalidSHA{SHA: sha}
}
switch {
case setting.Database.Type.IsPostgreSQL():
return postgresGetCommitStatusIndex(ctx, repoID, sha)
case setting.Database.Type.IsMySQL():
return mysqlGetCommitStatusIndex(ctx, repoID, sha)
case setting.Database.Type.IsMSSQL():
return mssqlGetCommitStatusIndex(ctx, repoID, sha)
}
e := db.GetEngine(ctx)

8
modules/git/sha1.go
View File

@ -28,6 +28,14 @@ func IsValidSHAPattern(sha string) bool {
return shaPattern.MatchString(sha)
}
type ErrInvalidSHA struct {
SHA string
}
func (err ErrInvalidSHA) Error() string {
return fmt.Sprintf("invalid sha: %s", err.SHA)
}
// MustID always creates a new SHA1 from a [20]byte array with no validation of input.
func MustID(b []byte) SHA1 {
var id SHA1