SetLimit 方法的作用是限制在该 errgroup 中同时运行的goroutines数量最多为 n 个。 这样可以防止过多的并发任务导致资源消耗过大,或者根据系统能力进行合理的负载控制。 当一个任务完成或出现错误时,SetLimit 会允许更多的任务进入并运行。 取消上下文: errgroup 结合 context.Context 使用,可以在外部请求取消时,通知...
nodeper4楼•8 小时前
Updated the documentation for `SetLimit` and `Go` functions in the `errgroup` package. the note clarifies the behavior when the semaphore limit is set to zero, which could lead to a deadlock if not handled properly. the updated documentation warns users to set a positive semaphore limit to ...
package main import ( "runtime" "golang.org/x/sync/errgroup" ) func main() { runtime.GOMAXPROCS(1) g := &errgroup.Group{} g.SetLimit(1) ch := make(chan struct{}) wait := make(chan struct{}, 2) g.Go(func() error { <-ch wait <- struct{}{} return nil }) go g.Go(...
packagemainimport(log"github.com/sirupsen/logrus""gopkg.in/natefinch/lumberjack.v2")funcmain(){log.SetOutput(&lumberjack.Logger{Filename:"app.log",MaxSize:100,// 日志文件最大大小(MB)MaxBackups:3,// 保留的旧日志文件数量MaxAge:28,// 保留天数Compress:true,// 是否压缩旧日志})log.Info("Th...
Machine - 受 errgroup.Group 启发的协程管理 thread 任务/定时器 Grift - Go based task runner cron - a cron library for go goCron - A Golang Job Scheduling Package jobrunner CurlyQ - 后台任务处理库 overtalk/task - 任务的管理&执行,支持自定义次数的重发 PPGo_Job - 定时任务管理系统 gocelery ...
neilotoole/errgroup - Drop-in alternative to sync/errgroup, limited to a pool of N worker goroutines. nursery - Structured concurrency in Go. oversight - Oversight is a complete implementation of the Erlang supervision trees. parallel-fn - Run functions in parallel. pond - Minimalistic and Hig...
feiertage - Set of functions to calculate public holidays in Germany, incl. specialization on the states of Germany (Bundesländer). Things like Easter, Pentecost, Thanksgiving… go-persian-calendar - The implementation of the Persian (Solar Hijri) Calendar in Go (golang). go-str2duration -...
dockerexecrabbitmq rabbitmqctl set_permissions -p customers percy".*"".*"".*" 创建后,您应该会在管理 UI 的右上角看到新的虚拟主机。 RabbitMQ 基础- Producers, Consumers, Exchanges, and Queues 当我们构建事件驱动架构时,我们需要了解一些术语。
eg.SetLimit(s.maxConcurrency) pulledImages := make([]string, len(needPull)) for i, service := range needPull { i, service := i, service eg.Go(func() error { id, err := s.pullServiceImage(ctx, service, s.configFile(), w, quietPull, project.Environment["DOCKER_DEFAULT_PLATFORM"...