The default size of the services' Thread Pool(Fixed) is `100` in user doc, but
the source code of `FixedThreadPool` is `200`. There are inconsistent.
#### 1. desc of user doc
`dubbo-protocol.md`，`dubbo-provider.md`
```
| 属性 | 对应URL参数 | 类型 | 是否必填 | 缺省值 | 作用 | 描述 | 兼容性 |
| threads | threads | int | 可选 | 100 | 性能调优 | 服务线程池大小(固定大小) | 2.0.5以上版本 |
| Attribute | Corresponding URL parameter | Type | Required |
Default Value | Function |
Description | Compatibility |
| threads | threads | int | False |
100 | Performance optimize | The size
of the services' Thread Pool(Fixed) | Above 2.0.5 |
```
#### 2. source code of FixedThreadPool
org.apache.dubbo.common.Constants
```java
public static final String DEFAULT_THREAD_NAME = "Dubbo";
public static final int DEFAULT_CORE_THREADS = 0;
public static final int DEFAULT_THREADS = 200;
```
org.apache.dubbo.common.threadpool.support.fixed.FixedThreadPool
```java
public class FixedThreadPool implements ThreadPool {
@Override
public Executor getExecutor(URL url) {
String name = url.getParameter(Constants.THREAD_NAME_KEY,
Constants.DEFAULT_THREAD_NAME);
int threads = url.getParameter(Constants.THREADS_KEY,
Constants.DEFAULT_THREADS);
int queues = url.getParameter(Constants.QUEUES_KEY,
Constants.DEFAULT_QUEUES);
return new ThreadPoolExecutor(threads, threads, 0,
TimeUnit.MILLISECONDS,
queues == 0 ? new SynchronousQueue<Runnable>() :
(queues < 0 ? new LinkedBlockingQueue<Runnable>()
: new LinkedBlockingQueue<Runnable>(queues)),
new NamedInternalThreadFactory(name, true), new
AbortPolicyWithReport(name, url));
}
}
```
[ Full content available at:
https://github.com/apache/incubator-dubbo-docs/issues/43 ]
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