ThreadSafeClientConnManager blocks forever on getConnection()
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Key: HTTPCLIENT-839
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-839
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpConn
Affects Versions: 4.0 Beta 2
Environment: Android 1.1 R1
Reporter: Matthias
I have set up a HttpClient object with a ThreadSafeClientConnManager as follows:
BasicHttpParams httpParams = new BasicHttpParams();
ConnManagerParams.setMaxTotalConnections(httpParams, 10);
HttpProtocolParams.setVersion(httpParams, HttpVersion.HTTP_1_1);
HttpProtocolParams.setUserAgent(httpParams, HTTP_USER_AGENT);
SchemeRegistry schemeRegistry = new SchemeRegistry();
int port = prefs.isDebugMode() ? 3001 : 80;
schemeRegistry.register(new Scheme("http",
PlainSocketFactory.getSocketFactory(), port));
ThreadSafeClientConnManager cm = new ThreadSafeClientConnManager(
httpParams, schemeRegistry);
this.httpClient = new DefaultHttpClient(cm, httpParams);
In one of my Android activities, I upload photos asynchronously using this
client (i.e. from different threads). When POST-ing the data,
ThreadSafeClientConnManager.getConnection() always blocks eternally during the
third upload, waiting for a connection to become free (why does it wait anyway
when I told it to use up to 10 connections, not just 2?). ANY subsequent
attempt to call execute() on that client will block on that unreleased lock
forever, rendering the whole client object useless.
Here is the code I use to dispatch the request:
private void sendPostRequest(String url, HttpEntity payload)
throws ConnectionFailedException, HttpResponseException {
try {
HttpPost request = new HttpPost(url);
request.setEntity(payload);
request.setHeader(HTTP_CONTENT_TYPE,
payload.getContentType().getValue());
oauthConsumer.sign(url, request);
HttpResponse response = httpClient.execute(request,
new BasicHttpContext());
validatePostResponse(response);
} catch (HttpResponseException e) {
throw e;
} catch (Exception e) {
throw new ConnectionFailedException(e);
}
}
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