On Mon, 2020-06-29 at 18:47 -0300, Pablo Caballero wrote:
> Hi Oleg! Thank you for your quick response!
>
> We have NO explicit socket config settings in our application.
>
> Today, while looking at the PoolingHttpClientConnectionManager class
> code I
> saw "something" called SocketConfig and I didn't dig further... :(
>
> Now that you point it out I think I figured out what I should do (set
> a
> default socket config to my HttpClientBuilder, right?).
>
Correct.
Oleg
> Thank you very much!
>
> Best regards!
>
>
>
>
> On Mon, Jun 29, 2020 at 5:47 PM Oleg Kalnichevski <ol...@apache.org>
> wrote:
>
> > On Mon, 2020-06-29 at 17:07 -0300, Pablo Caballero wrote:
> > > Hi! I'm using httpclient to consume a rest service. Everything
> > > was
> > > (is)
> > > working like a charm but we had an episode last week:
> > >
> > > - After a short outage in our network (blaming this outage is an
> > > assumption
> > > I can't confirm) we got 16 threads stuck in our app server on:
> > >
> > > "[STUCK] ExecuteThread: '45' for queue: 'weblogic.kernel.Default
> > > (self-tuning)'" #29841 daemon prio=1 os_prio=0
> > > tid=0x00007f07ac1e1800
> > > rc="DOMAIN" ac=2 nid=0x8c6d runnable [0x00007f077c1de000]
> > > java.lang.Thread.State: RUNNABLE
> > > at java.net.SocketInputStream.socketRead0(Native
> > > Method)
> > > at
> > > java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
> > > at
> > > java.net.SocketInputStream.read(SocketInputStream.java:170)
> > > at
> > > java.net.SocketInputStream.read(SocketInputStream.java:141)
> > > at
> > > sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
> > > at
> > > sun.security.ssl.InputRecord.read(InputRecord.java:503)
> > > at
> > > sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
> > > - locked <0x0000000093d38470> (a
> > > java.lang.Object)
> > > at
> > > sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketI
> > > mpl.
> > > java:1375)
> > > - locked <0x0000000093d38530> (a
> > > java.lang.Object)
> > > at
> > > sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:
> > > 1403
> > > )
> > > at
> > > sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:
> > > 1387
> > > )
> > > at
> > > org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayered
> > > Sock
> > > et(SSLConnectionSocketFactory.java:394)
> > > at
> > > org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.upg
> > > rade
> > > (DefaultHttpClientConnectionOperator.java:185)
> > > at
> > > org.apache.http.impl.conn.PoolingHttpClientConnectionManager.upgr
> > > ade(
> > > PoolingHttpClientConnectionManager.java:369)
> > > at
> > > org.apache.http.impl.execchain.MainClientExec.establishRoute(Main
> > > Clie
> > > ntExec.java:415)
> > >
> > > - 16 was the value we used for defaultMaxPerRoute
> > > (org.apache.http.impl.conn.PoolingHttpClientConnectionManager) so
> > > it
> > > makes
> > > sense that we got 16
> > > threads stuck.
> > >
> > > - All subsequent threads trying to get a connection got an
> > > exception
> > > (after
> > > X seconds with X equal to our value for connectionRequestTimeout)
> > > as
> > > expected.
> > >
> > > - I think I've narrowed the problem down to this part of the code
> > > (MainClientExec class)
> > >
> > > if (!managedConn.isOpen()) {
> > > this.log.debug("Opening connection " + route);
> > > try {
> > > establishRoute(proxyAuthState,
> > > managedConn,
> > > route, request, context);
> > > } catch (final TunnelRefusedException ex) {
> > > if (this.log.isDebugEnabled()) {
> > >
> > > this.log.debug(ex.getMessage());
> > > }
> > > response = ex.getResponse();
> > > break;
> > > }
> > > }
> > >
> > > final int timeout = config.getSocketTimeout();
> > > if (timeout >= 0) {
> > > managedConn.setSocketTimeout(timeout);
> > > }
> > >
> > > It seems like socket timeout is set after establishRoute so the
> > > SSL
> > > handshake isn't affected by this setting.
> > >
> > > I am right?
> >
> > You are right. This is expected. `RequestConfig` settings apply to
> > the
> > request execution and the response processing. They do not apply to
> > the
> > route negotiation. What are your `SocketConfig` settings?
> >
> > Oleg
> >
> >
> >
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