mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-05 05:27:51 +01:00
6f9c278559
# ⚠️ Breaking Many deprecated queue config options are removed (actually, they should have been removed in 1.18/1.19). If you see the fatal message when starting Gitea: "Please update your app.ini to remove deprecated config options", please follow the error messages to remove these options from your app.ini. Example: ``` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].ISSUE_INDEXER_QUEUE_TYPE`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].UPDATE_BUFFER_LEN`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [F] Please update your app.ini to remove deprecated config options ``` Many options in `[queue]` are are dropped, including: `WRAP_IF_NECESSARY`, `MAX_ATTEMPTS`, `TIMEOUT`, `WORKERS`, `BLOCK_TIMEOUT`, `BOOST_TIMEOUT`, `BOOST_WORKERS`, they can be removed from app.ini. # The problem The old queue package has some legacy problems: * complexity: I doubt few people could tell how it works. * maintainability: Too many channels and mutex/cond are mixed together, too many different structs/interfaces depends each other. * stability: due to the complexity & maintainability, sometimes there are strange bugs and difficult to debug, and some code doesn't have test (indeed some code is difficult to test because a lot of things are mixed together). * general applicability: although it is called "queue", its behavior is not a well-known queue. * scalability: it doesn't seem easy to make it work with a cluster without breaking its behaviors. It came from some very old code to "avoid breaking", however, its technical debt is too heavy now. It's a good time to introduce a better "queue" package. # The new queue package It keeps using old config and concept as much as possible. * It only contains two major kinds of concepts: * The "base queue": channel, levelqueue, redis * They have the same abstraction, the same interface, and they are tested by the same testing code. * The "WokerPoolQueue", it uses the "base queue" to provide "worker pool" function, calls the "handler" to process the data in the base queue. * The new code doesn't do "PushBack" * Think about a queue with many workers, the "PushBack" can't guarantee the order for re-queued unhandled items, so in new code it just does "normal push" * The new code doesn't do "pause/resume" * The "pause/resume" was designed to handle some handler's failure: eg: document indexer (elasticsearch) is down * If a queue is paused for long time, either the producers blocks or the new items are dropped. * The new code doesn't do such "pause/resume" trick, it's not a common queue's behavior and it doesn't help much. * If there are unhandled items, the "push" function just blocks for a few seconds and then re-queue them and retry. * The new code doesn't do "worker booster" * Gitea's queue's handlers are light functions, the cost is only the go-routine, so it doesn't make sense to "boost" them. * The new code only use "max worker number" to limit the concurrent workers. * The new "Push" never blocks forever * Instead of creating more and more blocking goroutines, return an error is more friendly to the server and to the end user. There are more details in code comments: eg: the "Flush" problem, the strange "code.index" hanging problem, the "immediate" queue problem. Almost ready for review. TODO: * [x] add some necessary comments during review * [x] add some more tests if necessary * [x] update documents and config options * [x] test max worker / active worker * [x] re-run the CI tasks to see whether any test is flaky * [x] improve the `handleOldLengthConfiguration` to provide more friendly messages * [x] fine tune default config values (eg: length?) ## Code coverage: ![image](https://user-images.githubusercontent.com/2114189/236620635-55576955-f95d-4810-b12f-879026a3afdf.png)
133 lines
3.7 KiB
Go
133 lines
3.7 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package test
|
|
|
|
import (
|
|
scontext "context"
|
|
"io"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"net/url"
|
|
"testing"
|
|
|
|
access_model "code.gitea.io/gitea/models/perm/access"
|
|
repo_model "code.gitea.io/gitea/models/repo"
|
|
"code.gitea.io/gitea/models/unittest"
|
|
user_model "code.gitea.io/gitea/models/user"
|
|
"code.gitea.io/gitea/modules/context"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/templates"
|
|
"code.gitea.io/gitea/modules/translation"
|
|
"code.gitea.io/gitea/modules/web/middleware"
|
|
|
|
chi "github.com/go-chi/chi/v5"
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
// MockContext mock context for unit tests
|
|
// TODO: move this function to other packages, because it depends on "models" package
|
|
func MockContext(t *testing.T, path string) *context.Context {
|
|
resp := &mockResponseWriter{}
|
|
ctx := context.Context{
|
|
Render: &mockRender{},
|
|
Data: make(middleware.ContextData),
|
|
Flash: &middleware.Flash{
|
|
Values: make(url.Values),
|
|
},
|
|
Resp: context.NewResponse(resp),
|
|
Locale: &translation.MockLocale{},
|
|
}
|
|
defer ctx.Close()
|
|
|
|
requestURL, err := url.Parse(path)
|
|
assert.NoError(t, err)
|
|
req := &http.Request{
|
|
URL: requestURL,
|
|
Form: url.Values{},
|
|
}
|
|
|
|
chiCtx := chi.NewRouteContext()
|
|
req = req.WithContext(scontext.WithValue(req.Context(), chi.RouteCtxKey, chiCtx))
|
|
ctx.Req = context.WithContext(req, &ctx)
|
|
return &ctx
|
|
}
|
|
|
|
// LoadRepo load a repo into a test context.
|
|
func LoadRepo(t *testing.T, ctx *context.Context, repoID int64) {
|
|
ctx.Repo = &context.Repository{}
|
|
ctx.Repo.Repository = unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
|
|
var err error
|
|
ctx.Repo.Owner, err = user_model.GetUserByID(ctx, ctx.Repo.Repository.OwnerID)
|
|
assert.NoError(t, err)
|
|
ctx.Repo.RepoLink = ctx.Repo.Repository.Link()
|
|
ctx.Repo.Permission, err = access_model.GetUserRepoPermission(ctx, ctx.Repo.Repository, ctx.Doer)
|
|
assert.NoError(t, err)
|
|
}
|
|
|
|
// LoadRepoCommit loads a repo's commit into a test context.
|
|
func LoadRepoCommit(t *testing.T, ctx *context.Context) {
|
|
gitRepo, err := git.OpenRepository(ctx, ctx.Repo.Repository.RepoPath())
|
|
assert.NoError(t, err)
|
|
defer gitRepo.Close()
|
|
branch, err := gitRepo.GetHEADBranch()
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, branch)
|
|
if branch != nil {
|
|
ctx.Repo.Commit, err = gitRepo.GetBranchCommit(branch.Name)
|
|
assert.NoError(t, err)
|
|
}
|
|
}
|
|
|
|
// LoadUser load a user into a test context.
|
|
func LoadUser(t *testing.T, ctx *context.Context, userID int64) {
|
|
ctx.Doer = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: userID})
|
|
}
|
|
|
|
// LoadGitRepo load a git repo into a test context. Requires that ctx.Repo has
|
|
// already been populated.
|
|
func LoadGitRepo(t *testing.T, ctx *context.Context) {
|
|
assert.NoError(t, ctx.Repo.Repository.LoadOwner(ctx))
|
|
var err error
|
|
ctx.Repo.GitRepo, err = git.OpenRepository(ctx, ctx.Repo.Repository.RepoPath())
|
|
assert.NoError(t, err)
|
|
}
|
|
|
|
type mockResponseWriter struct {
|
|
httptest.ResponseRecorder
|
|
size int
|
|
}
|
|
|
|
func (rw *mockResponseWriter) Write(b []byte) (int, error) {
|
|
rw.size += len(b)
|
|
return rw.ResponseRecorder.Write(b)
|
|
}
|
|
|
|
func (rw *mockResponseWriter) Status() int {
|
|
return rw.ResponseRecorder.Code
|
|
}
|
|
|
|
func (rw *mockResponseWriter) Written() bool {
|
|
return rw.ResponseRecorder.Code > 0
|
|
}
|
|
|
|
func (rw *mockResponseWriter) Size() int {
|
|
return rw.size
|
|
}
|
|
|
|
func (rw *mockResponseWriter) Push(target string, opts *http.PushOptions) error {
|
|
return nil
|
|
}
|
|
|
|
type mockRender struct{}
|
|
|
|
func (tr *mockRender) TemplateLookup(tmpl string) (templates.TemplateExecutor, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (tr *mockRender) HTML(w io.Writer, status int, _ string, _ interface{}) error {
|
|
if resp, ok := w.(http.ResponseWriter); ok {
|
|
resp.WriteHeader(status)
|
|
}
|
|
return nil
|
|
}
|