如果下载大小很大，InputStream.close 会非常慢

Question

I have the following code:

HttpGet downloadRequest = new HttpGet("url?size=10000000");
HttpResponse response = this.httpClient.execute(downloadRequest);
HttpEntity entity = response.getEntity();        
InputStream inputStream = entity.getContent();

while ((length = (int)inputStream.skip((long)BUFFER_SIZE)) != 0) {

 ...
}

inputStream.close();

It is a very basic program which downloads data from a url. My question is that it is working fine if it finishes downloading all the data; however, if I try to force to stop the download progress(eg break the while loop after 1 sec) midway,

inputStream.close();

takes long time to close the inputStream. And the more downloaded data it left, the more time it took to close it.

Does I do anything wrong when I close the inputStream? Is there a way to close the inputStream right away safety which no matter how much data left in "inputStream"?

Answer 1

I had the same problem and what helped me was to issue a httpget.abort() before closing the InputStream and before issuing EntityUtils.consume(entity) .

httpget.reset() should have the same effect.

Answer 2

I had the same problem dealing with Post request. I traced into and found out what caused the HttpResponse hung was it is still streaming with large data. The fix was to abort the request from the beginning. Something similar like following

HttpPost httpPost = new HttpPost("request/endpoint");
httpPost.abort();
// do the rest down here