On Mon, 2016-10-03 at 10:45 +0200, Joan Balagueró wrote: > Thanks Stefan and yes, that's right. And I already told my client to modify > these settings. But I still have the doubt about why a Timeout exception in a > pool that has no upper limit in the number of pooled connections. > >
This is because of the lock contention. Oleg > -----Mensaje original----- > De: Stefan Magnus Landrø [mailto:[email protected]] > Enviado el: lunes, 3 de octubre de 2016 9:00 > Para: HttpClient User Discussion > Asunto: Re: TimeoutException in async pool > > So - first I'd set pool size to 50 since that's all you need on average. Then > set acquisition timeout to something that makes sense. 10-20ms? > > Sendt fra min iPhone > > > Den 3. okt. 2016 kl. 07.32 skrev Joan Balagueró > > <[email protected]>: > > > > Hello, > > > > I’m using the async PoolingNHttpClientConnectionManager (v 4.1.2). > > > > Occasionally I’m getting this error: > > > > java.util.concurrent.TimeoutException > > at > > org.apache.http.nio.pool.AbstractNIOConnPool.processPendingRequest(Abs > > tractN > > IOConnPool.java:364) > > at > > org.apache.http.nio.pool.AbstractNIOConnPool.lease(AbstractNIOConnPool.java: > > 276) > > at > > org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.requ > > estCon > > nection(PoolingNHttpClientConnectionManager.java:266) > > at > > org.apache.http.impl.nio.client.AbstractClientExchangeHandler.requestC > > onnect > > ion(AbstractClientExchangeHandler.java:363) > > at > > org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.start > > (Defau > > ltClientExchangeHandlerImpl.java:125) > > at > > org.apache.http.impl.nio.client.InternalHttpAsyncClient.execute(Intern > > alHttp > > AsyncClient.java:141) > > at > > org.apache.http.impl.nio.client.CloseableHttpAsyncClient.execute(Close > > ableHt > > tpAsyncClient.java:68) > > > > > > It seems that all connections in pool are busy. But my setup says: > > > > this.phccm = new PoolingNHttpClientConnectionManager(…); > > this.phccm.setMaxTotal(Integer.MAX_VALUE); > > this.phccm.setDefaultMaxPerRoute(Integer.MAX_VALUE); > > > > > > I don't have more than 1000 requests per second, and the average > > response time is less than 20ms. > > > > What could be the reason for this error? > > > > Thanks, > > Joan. > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
