2.2.x

[zhangyinhao1234]

添加了一个sdk，用来创建线程池，和创建runable，参考Spring的Async的实现方式，使用自己创建的runable和线程池实现了多线程链路的显示，原来这块在代码在1.8.3版本上运行，已经稳定运行1年。

[CLAassistant]

All committers have signed the CLA.

[zhangyinhao1234]

example：

<dependency> <groupId>com.navercorp.pinpoint</groupId> <artifactId>pinpoint-java-sdk</artifactId> <version>2.2.2-SNAPSHOT</version> </dependency>

`
private ThreadPoolExecutor triggerPool = new AsyncThreadPoolExecutor(
32,
256,
60L,
TimeUnit.SECONDS,
new LinkedBlockingQueue(1000));

@GetMapping("/hello1")
public String test11(String name) throws InterruptedException {
    String hello = helloService.hello();
    triggerPool.execute(new AsyncRun() {
        @Override
        public Object asyncRun() {
            String pp = helloService.hello2(name, "PP");
            return pp;
        }
    }.getRunnable());
    return hello;
}


@GetMapping("/hello2")
public String test12(String name) throws InterruptedException, ExecutionException {
    String hello = helloService.hello();
    Future pp = triggerPool.submit(new AsyncRun() {
        @Override
        public Object asyncRun() {
            String pp = helloService.hello2(name, "PP");
            return pp;
        }
    }.getCallable());
    return hello;
}

`

[zhangyinhao1234]

日志中未发现提示错误的地方。。不清楚哪里出了错

[emeroad]

Please use English.

If there is a lot of log from travis, the build will fail.

Could you push PR to master branch.
The master branch uses github action, so there is no such problem.

[zlp1992]

@zhangyinhao1234 @emeroad what's the difference between pinpoint-java-sdk and the existed thread plugin(since Pinpoint 2.0.2) ? I think the purpose of both is same, just to keep tracing in aysnc thread. Using thread plugin we don't have to modify business application, while using pinpoint-java-sdk we have to modify our business application to support async trace (for example, use AsyncRun in our code) ?

[emeroad]

The thread-plugin operates on global state, making it difficult to limit specific targets.
On the other hand, SDK can also have high accuracy.

For example, SDK makes it very easy to select a specific action when there are multiple asynchronous actions in a method.

[zlp1992]

Get it. But using SDK we will have to modify our application code ?