Chanseok Oh created HTTPCLIENT-2015:
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Summary: Connect timeout value is effective doubled
Key: HTTPCLIENT-2015
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2015
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpClient (classic)
Affects Versions: 4.5.10
Environment: Debian-based Linux
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)
Reporter: Chanseok Oh
The connection times out, say, after 6 seconds when calling
`setConnectionTimeout(3000)`. The timeout value is effectively doubled. I've
provided sample code, which demonstrates that the JDK Socket times out after 3
seconds, but the Apache HTTP Client times out after 6 seconds.
This may seem like a minor bug to others, but our product functionality depends
on timeouts in part and allows the user to adjust the timeouts, and this
timeout-doubling-effect is causing some trouble to us.
{code:java}
public static void main(String[] args) {
long started = System.nanoTime();
try (Socket socket = new Socket()) {
socket.connect(new InetSocketAddress("example.com", 81), 3000);
} catch (IOException ex) {
ex.printStackTrace(System.out);
} finally {
System.out.println("JDK elapsed (s): " + (System.nanoTime() - started) /
1000000000L);
}
try (CloseableHttpClient client = HttpClients.createDefault()) {
HttpGet httpGet = new HttpGet("https://example.com:81";);
httpGet.setConfig(RequestConfig.custom().setConnectTimeout(3000).build());
long started2 = System.nanoTime();
try (CloseableHttpResponse res = client.execute(httpGet)) {
} finally {
System.out.println("Apache elapsed (s): " + (System.nanoTime() -
started2) / 1000000000L);
}
} catch (IOException ex) {
ex.printStackTrace(System.out);
}
}
{code}
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