mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-18 18:43:26 +02:00
# ⚠️ 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)
104 lines
3.4 KiB
Go
104 lines
3.4 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package setting
|
|
|
|
import (
|
|
"net/url"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
|
|
"github.com/gobwas/glob"
|
|
)
|
|
|
|
// Indexer settings
|
|
var Indexer = struct {
|
|
IssueType string
|
|
IssuePath string
|
|
IssueConnStr string
|
|
IssueConnAuth string
|
|
IssueIndexerName string
|
|
StartupTimeout time.Duration
|
|
|
|
RepoIndexerEnabled bool
|
|
RepoType string
|
|
RepoPath string
|
|
RepoConnStr string
|
|
RepoIndexerName string
|
|
MaxIndexerFileSize int64
|
|
IncludePatterns []glob.Glob
|
|
ExcludePatterns []glob.Glob
|
|
ExcludeVendored bool
|
|
}{
|
|
IssueType: "bleve",
|
|
IssuePath: "indexers/issues.bleve",
|
|
IssueConnStr: "",
|
|
IssueConnAuth: "",
|
|
IssueIndexerName: "gitea_issues",
|
|
|
|
RepoIndexerEnabled: false,
|
|
RepoType: "bleve",
|
|
RepoPath: "indexers/repos.bleve",
|
|
RepoConnStr: "",
|
|
RepoIndexerName: "gitea_codes",
|
|
MaxIndexerFileSize: 1024 * 1024,
|
|
ExcludeVendored: true,
|
|
}
|
|
|
|
func loadIndexerFrom(rootCfg ConfigProvider) {
|
|
sec := rootCfg.Section("indexer")
|
|
Indexer.IssueType = sec.Key("ISSUE_INDEXER_TYPE").MustString("bleve")
|
|
Indexer.IssuePath = filepath.ToSlash(sec.Key("ISSUE_INDEXER_PATH").MustString(filepath.ToSlash(filepath.Join(AppDataPath, "indexers/issues.bleve"))))
|
|
if !filepath.IsAbs(Indexer.IssuePath) {
|
|
Indexer.IssuePath = filepath.ToSlash(filepath.Join(AppWorkPath, Indexer.IssuePath))
|
|
}
|
|
Indexer.IssueConnStr = sec.Key("ISSUE_INDEXER_CONN_STR").MustString(Indexer.IssueConnStr)
|
|
|
|
if Indexer.IssueType == "meilisearch" {
|
|
u, err := url.Parse(Indexer.IssueConnStr)
|
|
if err != nil {
|
|
log.Warn("Failed to parse ISSUE_INDEXER_CONN_STR: %v", err)
|
|
u = &url.URL{}
|
|
}
|
|
Indexer.IssueConnAuth, _ = u.User.Password()
|
|
u.User = nil
|
|
Indexer.IssueConnStr = u.String()
|
|
}
|
|
|
|
Indexer.IssueIndexerName = sec.Key("ISSUE_INDEXER_NAME").MustString(Indexer.IssueIndexerName)
|
|
|
|
Indexer.RepoIndexerEnabled = sec.Key("REPO_INDEXER_ENABLED").MustBool(false)
|
|
Indexer.RepoType = sec.Key("REPO_INDEXER_TYPE").MustString("bleve")
|
|
Indexer.RepoPath = filepath.ToSlash(sec.Key("REPO_INDEXER_PATH").MustString(filepath.ToSlash(filepath.Join(AppDataPath, "indexers/repos.bleve"))))
|
|
if !filepath.IsAbs(Indexer.RepoPath) {
|
|
Indexer.RepoPath = filepath.ToSlash(filepath.Join(AppWorkPath, Indexer.RepoPath))
|
|
}
|
|
Indexer.RepoConnStr = sec.Key("REPO_INDEXER_CONN_STR").MustString("")
|
|
Indexer.RepoIndexerName = sec.Key("REPO_INDEXER_NAME").MustString("gitea_codes")
|
|
|
|
Indexer.IncludePatterns = IndexerGlobFromString(sec.Key("REPO_INDEXER_INCLUDE").MustString(""))
|
|
Indexer.ExcludePatterns = IndexerGlobFromString(sec.Key("REPO_INDEXER_EXCLUDE").MustString(""))
|
|
Indexer.ExcludeVendored = sec.Key("REPO_INDEXER_EXCLUDE_VENDORED").MustBool(true)
|
|
Indexer.MaxIndexerFileSize = sec.Key("MAX_FILE_SIZE").MustInt64(1024 * 1024)
|
|
Indexer.StartupTimeout = sec.Key("STARTUP_TIMEOUT").MustDuration(30 * time.Second)
|
|
}
|
|
|
|
// IndexerGlobFromString parses a comma separated list of patterns and returns a glob.Glob slice suited for repo indexing
|
|
func IndexerGlobFromString(globstr string) []glob.Glob {
|
|
extarr := make([]glob.Glob, 0, 10)
|
|
for _, expr := range strings.Split(strings.ToLower(globstr), ",") {
|
|
expr = strings.TrimSpace(expr)
|
|
if expr != "" {
|
|
if g, err := glob.Compile(expr, '.', '/'); err != nil {
|
|
log.Info("Invalid glob expression '%s' (skipped): %v", expr, err)
|
|
} else {
|
|
extarr = append(extarr, g)
|
|
}
|
|
}
|
|
}
|
|
return extarr
|
|
}
|