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Transaction-aware retry create issue to cope with duplicate keys (#8307)

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* Revert #7898

* Transaction-aware retry create issue to cope with duplicate keys

* Restore INSERT ... WHERE usage

* Rearrange code for clarity

* Fix error return in newIssue()

* Fix error message
This commit is contained in:
guillep2k
2019-10-02 19:28:30 -03:00
committed by Antoine GIRARD
parent c9f819eae0
commit cd13f273d1
3 changed files with 57 additions and 18 deletions
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20
models/pull.go
View File

@@ -657,6 +657,24 @@ func (pr *PullRequest) testPatch(e Engine) (err error) {
// NewPullRequest creates new pull request with labels for repository.
func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte, assigneeIDs []int64) (err error) {
// Retry several times in case INSERT fails due to duplicate key for (repo_id, index); see #7887
i := 0
for {
if err = newPullRequestAttempt(repo, pull, labelIDs, uuids, pr, patch, assigneeIDs); err == nil {
return nil
}
if !IsErrNewIssueInsert(err) {
return err
}
if i++; i == issueMaxDupIndexAttempts {
break
}
log.Error("NewPullRequest: error attempting to insert the new issue; will retry. Original error: %v", err)
}
return fmt.Errorf("NewPullRequest: too many errors attempting to insert the new issue. Last error was: %v", err)
}
func newPullRequestAttempt(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte, assigneeIDs []int64) (err error) {
sess := x.NewSession()
defer sess.Close()
if err = sess.Begin(); err != nil {
@@ -671,7 +689,7 @@ func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []str
IsPull: true,
AssigneeIDs: assigneeIDs,
}); err != nil {
if IsErrUserDoesNotHaveAccessToRepo(err) {
if IsErrUserDoesNotHaveAccessToRepo(err) || IsErrNewIssueInsert(err) {
return err
}
return fmt.Errorf("newIssue: %v", err)