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Posted to notifications@dubbo.apache.org by "sick-cat (via GitHub)" <gi...@apache.org> on 2023/08/14 04:13:22 UTC
[GitHub] [dubbo] sick-cat opened a new issue, #12891: rest 接口响应内容大于1kb时触发分块传输，导致报错
sick-cat opened a new issue, #12891:
URL: https://github.com/apache/dubbo/issues/12891
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- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
### Environment
* Dubbo version: 3.2.5
* Java version: 1.8
### Steps to reproduce this issue
1. 使用rest协议暴露一个接口，响应内容大于 1kb
2. 服务启动后，访问该接口即可触发。
### Actual Behavior
<!-- What actually happens? -->
实际响应内容会追加报错信息
```
dubbo rest invoke Internal error, message is null ,and exception type is : class java.lang.IllegalStateException , stacktrace is:
at org.apache.dubbo.rpc.protocol.rest.netty.ChunkOutputStream.reset(ChunkOutputStream.java:53)
at org.apache.dubbo.rpc.protocol.rest.extension.resteasy.ResteasyContext.restOutputStream(ResteasyContext.java:176)
at org.apache.dubbo.rpc.protocol.rest.extension.resteasy.filter.ResteasyResponseContainerFilterAdapter.filter(ResteasyResponseContainerFilterAdapter.java:62)
at org.apache.dubbo.rpc.protocol.rest.handler.NettyHttpHandler.executeFilters(NettyHttpHandler.java:137)
at org.apache.dubbo.rpc.protocol.rest.handler.NettyHttpHandler.handle(NettyHttpHandler.java:107)
at org.apache.dubbo.rpc.protocol.rest.netty.RestHttpRequestDecoder.lambda$decode$0(RestHttpRequestDecoder.java:67)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41)
at java.lang.Thread.run(Thread.java:748)
```
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[GitHub] [dubbo] CrazyHZM commented on issue #12891: rest 接口响应内容大于1kb时触发分块传输，导致报错
Posted by "CrazyHZM (via GitHub)" <gi...@apache.org>.
CrazyHZM commented on issue #12891:
URL: https://github.com/apache/dubbo/issues/12891#issuecomment-1676647801
@suncairong163 PTAL
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[GitHub] [dubbo] CrazyHZM closed issue #12891: rest 接口响应内容大于1kb时触发分块传输，导致报错
Posted by "CrazyHZM (via GitHub)" <gi...@apache.org>.
CrazyHZM closed issue #12891: rest 接口响应内容大于1kb时触发分块传输，导致报错
URL: https://github.com/apache/dubbo/issues/12891
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[GitHub] [dubbo] sick-cat commented on issue #12891: rest 接口响应内容大于1kb时触发分块传输，导致报错
Posted by "sick-cat (via GitHub)" <gi...@apache.org>.
sick-cat commented on issue #12891:
URL: https://github.com/apache/dubbo/issues/12891#issuecomment-1676648278
org.apache.dubbo.rpc.protocol.rest.netty.NettyHttpResponse中通过一下方式创建outputstream
```java
os = new ChunkOutputStream(this, ctx, 1000);
```
org.apache.dubbo.rpc.protocol.rest.netty.ChunkOutputStream 会分块处理长度超过1000的响应内容。
```java
public void write(byte[] b, int off, int len) throws IOException {
int dataLengthLeftToWrite = len;
int dataToWriteOffset = off;
int spaceLeftInCurrentChunk;
while ((spaceLeftInCurrentChunk = buffer.maxWritableBytes()) < dataLengthLeftToWrite) {
buffer.writeBytes(b, dataToWriteOffset, spaceLeftInCurrentChunk);
dataToWriteOffset = dataToWriteOffset + spaceLeftInCurrentChunk;
dataLengthLeftToWrite = dataLengthLeftToWrite - spaceLeftInCurrentChunk;
flush();
}
if (dataLengthLeftToWrite > 0) {
buffer.writeBytes(b, dataToWriteOffset, dataLengthLeftToWrite);
}
}
```
org.apache.dubbo.rpc.protocol.rest.extension.resteasy.filter.ResteasyResponseContainerFilterAdapter会在 `restOutputStream(response);` 时触发异常
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