Correctly shutting down a websocket handler
by Robin Anil
When a client disconnects, I see that onClose is not being fired. The only
way this seems to be firing if client sents a close frame.
Is there any way to detect disconnection and immediately close all the
opened resources.
Robin
Robin Anil | Software Engineer
1 year, 3 months
re-establish a usable response object after an IOException
by Rebecca Searls
Resteasy is processing a REST request that is to produce a JSON object. The
generation of the JSON object fails because the users's (class) object is missing
a required annotation. This programming error causes an IOException to be thrown
by com.fasterxml.jackson.databind.ObjectWriter and the response is tagged
as completed in HttpServerExchange. But the user has also defined a custom
ExceptionMapper<throwable> for Resteasy to use to report any exceptions. Custom
ExceptionMappers in this case are processed after the response has be marked complete.
Is there any way to re-establish a usable response object so the user's ExceptionMapper can
report the failure to the client?
8 years, 1 month
Re: [undertow-dev] undertow/xnio did not dispatch request
by Bradley, Qian
Filed https://issues.jboss.org/browse/XNIO-280
From: Bradley, Qian
Sent: Wednesday, October 19, 2016 11:27 AM
To: 'undertow-dev(a)lists.jboss.org'
Subject: undertow/xnio did not dispatch request
We are replacing tomcat connector with undertow in a spring-boot setting, for servlet 3.0 based container. During load performance test, see a possible issue that some request are not dispatched from undertow, the count is very small (~ 0.01%), but highly repeatable.
Example test Setting:
Jmeter 1 client (keep-alive traffic) --> undertow, traffic is on the same client thread, it is a blocking client, so all in-coming request to undertow are sequential. Request sent non-stopping (as fast as possible).
(1) verified that it is not due to network packet, we used tcpdump to trace the missed call that client-side sent the request, and server "ack" the request. But the response is never sent. See below shows when a call is successful vs. unsuccessful"
(successful)
(client send request)
05:01:05.325799 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304084:20304121, ack 100946003, win 501, options [nop,nop,TS val 3490584463 ecr 72906421], length 37
05:01:05.325850 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304121:20304366, ack 100946003, win 501, options [nop,nop,TS val 3490584463 ecr 72906421], length 245
(from server)
05:01:05.325995 IP 10.25.171.155.pcsync-https > 10.24.48.104.39687: Flags [.], ack 20304366, win 1636, options [nop,nop,TS val 72906421 ecr 3490584463], length 0
05:01:05.327110 IP 10.25.171.155.pcsync-https > 10.24.48.104.39687: Flags [P.], seq 100946003:100947405, ack 20304366, win 1636, options [nop,nop,TS val 72906422 ecr 3490584463], length 1402
(unsuccessful)
(client send request)
05:01:05.327440 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304366:20304403, ack 100947405, win 501, options [nop,nop,TS val 3490584465 ecr 72906422], length 37
05:01:05.327485 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304403:20304648, ack 100947405, win 501, options [nop,nop,TS val 3490584465 ecr 72906422], length 245
(from server)
05:01:05.327628 IP 10.25.171.155.pcsync-https > 10.24.48.104.39687: Flags [.], ack 20304648, win 1636, options [nop,nop,TS val 72906422 ecr 3490584465], length 0
[response from server never received]
(2) From application logging, here is example when request is successful vs unsuccessful
(successful response)
2016-10-19 04:05:23,268 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected on sun.nio.ch.EPollSelectorImpl@4129489f<mailto:sun.nio.ch.EPollSelectorImpl@4129489f>
2016-10-19 04:05:23,268 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Beginning select on sun.nio.ch.EPollSelectorImpl@4129489f<mailto:sun.nio.ch.EPollSelectorImpl@4129489f> (with timeout)
2016-10-19 04:05:23,269 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected on sun.nio.ch.EPollSelectorImpl@4129489f<mailto:sun.nio.ch.EPollSelectorImpl@4129489f>
2016-10-19 04:05:23,269 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected key sun.nio.ch.SelectionKeyImpl@4218d66e<mailto:sun.nio.ch.SelectionKeyImpl@4218d66e> for java.nio.channels.SocketChannel[connected local=/127.0.0.1:8443 remote=/127.0.0.1:51626]
2016-10-19 04:05:23,269 TRACE [XNIO-APPLICATION I/O-8] org.xnio.listener Invoking listener io.undertow.server.protocol.http.HttpReadListener@192666c4<mailto:io.undertow.server.protocol.http.HttpReadListener@192666c4> on channel org.xnio.conduits.ConduitStreamSourceChannel@5d338d2a<mailto:org.xnio.conduits.ConduitStreamSourceChannel@5d338d2a>
2016-10-19 04:05:23,270 WARN [XNIO-APPLICATION task-14] com.paypal.raptor.samples.impl.SampleResourceImpl 156539
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION task-14] io.undertow.server.HttpServerExchange Starting to write response for HttpServerExchange{ GET /v1/qbd1serv/lnp/hello request {Connection=[keep-alive], Accept=[text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2], User-Agent=[Java/1.7.0_45], Host=[qbd1serv59287.qa.paypal.com:8443]} response {Connection=[keep-alive], SERVER_INFO=[qbd1serv:ppaas_1_2.v1.qbd1serv.lnp.hello.GET&CalThreadId=114&TopLevelTxnStartTime=157dc9dfa45&Host=kncntusrstage13875&pid=2901], Content-Type=[text/plain; charset=UTF-8], Content-Length=[1024], CORRELATION-ID=[4dcef4a4f99c3], Date=[Wed, 19 Oct 2016 11:05:23 GMT]}}
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio Running task io.undertow.protocols.ssl.SslConduit$1@326a9cf4<mailto:io.undertow.protocols.ssl.SslConduit$1@326a9cf4>
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION task-14] org.xnio.safe-close Closing resource io.undertow.servlet.core.ServletBlockingHttpExchange@d9add7a<mailto:io.undertow.servlet.core.ServletBlockingHttpExchange@d9add7a>
(unsuccessful )
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Beginning select on sun.nio.ch.EPollSelectorImpl@4129489f<mailto:sun.nio.ch.EPollSelectorImpl@4129489f> (with timeout)
2016-10-19 04:05:24,001 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected on sun.nio.ch.EPollSelectorImpl@4129489f<mailto:sun.nio.ch.EPollSelectorImpl@4129489f>
2016-10-19 04:05:24,001 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio Running task io.undertow.util.DateUtils$2@d27f1e9<mailto:io.undertow.util.DateUtils$2@d27f1e9>
2016-10-19 04:05:24,001 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Beginning select on sun.nio.ch.EPollSelectorImpl@4129489f<mailto:sun.nio.ch.EPollSelectorImpl@4129489f> (with timeout)
Note that rest server actions are missing, from server log, I used a counter in a servlet filter, also server counter < client count
Note: the timestamp on the above might not perfect match on client vs server time stamp respectively.
(3) I am on spring-boot 1.4.1, also tested using 1.3.x same behavior. I also overrides xnio 3.4 vs 3.3.x, also same behavior. Changed configured the following other than default ..
(3.a) Undertow io- 8 threads, task worker 25 core threads, max 64 threads. Server-idle timeout 20 sec, server-no request timeout 20 sec.
(3.b) If I use concurrent jmeter client, same behavior is also observed, the ratio did not worse, actually, it might be slightly better than just single test client.
Please share insights if there is any configuration from my side, or else.
Thanks much,
Qian
8 years, 2 months
undertow/xnio did not dispatch request
by Bradley, Qian
We are replacing tomcat connector with undertow in a spring-boot setting, for servlet 3.0 based container. During load performance test, see a possible issue that some request are not dispatched from undertow, the count is very small (~ 0.01%), but highly repeatable.
Example test Setting:
Jmeter 1 client (keep-alive traffic) --> undertow, traffic is on the same client thread, it is a blocking client, so all in-coming request to undertow are sequential. Request sent non-stopping (as fast as possible).
(1) verified that it is not due to network packet, we used tcpdump to trace the missed call that client-side sent the request, and server "ack" the request. But the response is never sent. See below shows when a call is successful vs. unsuccessful"
(successful)
(client send request)
05:01:05.325799 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304084:20304121, ack 100946003, win 501, options [nop,nop,TS val 3490584463 ecr 72906421], length 37
05:01:05.325850 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304121:20304366, ack 100946003, win 501, options [nop,nop,TS val 3490584463 ecr 72906421], length 245
(from server)
05:01:05.325995 IP 10.25.171.155.pcsync-https > 10.24.48.104.39687: Flags [.], ack 20304366, win 1636, options [nop,nop,TS val 72906421 ecr 3490584463], length 0
05:01:05.327110 IP 10.25.171.155.pcsync-https > 10.24.48.104.39687: Flags [P.], seq 100946003:100947405, ack 20304366, win 1636, options [nop,nop,TS val 72906422 ecr 3490584463], length 1402
(unsuccessful)
(client send request)
05:01:05.327440 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304366:20304403, ack 100947405, win 501, options [nop,nop,TS val 3490584465 ecr 72906422], length 37
05:01:05.327485 IP 10.24.48.104.39687 > 10.25.171.155.pcsync-https: Flags [P.], seq 20304403:20304648, ack 100947405, win 501, options [nop,nop,TS val 3490584465 ecr 72906422], length 245
(from server)
05:01:05.327628 IP 10.25.171.155.pcsync-https > 10.24.48.104.39687: Flags [.], ack 20304648, win 1636, options [nop,nop,TS val 72906422 ecr 3490584465], length 0
[response from server never received]
(2) From application logging, here is example when request is successful vs unsuccessful
(successful response)
2016-10-19 04:05:23,268 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected on sun.nio.ch.EPollSelectorImpl@4129489f
2016-10-19 04:05:23,268 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Beginning select on sun.nio.ch.EPollSelectorImpl@4129489f (with timeout)
2016-10-19 04:05:23,269 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected on sun.nio.ch.EPollSelectorImpl@4129489f
2016-10-19 04:05:23,269 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected key sun.nio.ch.SelectionKeyImpl@4218d66e for java.nio.channels.SocketChannel[connected local=/127.0.0.1:8443 remote=/127.0.0.1:51626]
2016-10-19 04:05:23,269 TRACE [XNIO-APPLICATION I/O-8] org.xnio.listener Invoking listener io.undertow.server.protocol.http.HttpReadListener@192666c4 on channel org.xnio.conduits.ConduitStreamSourceChannel@5d338d2a
2016-10-19 04:05:23,270 WARN [XNIO-APPLICATION task-14] com.paypal.raptor.samples.impl.SampleResourceImpl 156539
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION task-14] io.undertow.server.HttpServerExchange Starting to write response for HttpServerExchange{ GET /v1/qbd1serv/lnp/hello request {Connection=[keep-alive], Accept=[text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2], User-Agent=[Java/1.7.0_45], Host=[qbd1serv59287.qa.paypal.com:8443]} response {Connection=[keep-alive], SERVER_INFO=[qbd1serv:ppaas_1_2.v1.qbd1serv.lnp.hello.GET&CalThreadId=114&TopLevelTxnStartTime=157dc9dfa45&Host=kncntusrstage13875&pid=2901], Content-Type=[text/plain; charset=UTF-8], Content-Length=[1024], CORRELATION-ID=[4dcef4a4f99c3], Date=[Wed, 19 Oct 2016 11:05:23 GMT]}}
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio Running task io.undertow.protocols.ssl.SslConduit$1@326a9cf4
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION task-14] org.xnio.safe-close Closing resource io.undertow.servlet.core.ServletBlockingHttpExchange@d9add7a<mailto:io.undertow.servlet.core.ServletBlockingHttpExchange@d9add7a>
(unsuccessful )
2016-10-19 04:05:23,270 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Beginning select on sun.nio.ch.EPollSelectorImpl@4129489f (with timeout)
2016-10-19 04:05:24,001 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Selected on sun.nio.ch.EPollSelectorImpl@4129489f
2016-10-19 04:05:24,001 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio Running task io.undertow.util.DateUtils$2@d27f1e9
2016-10-19 04:05:24,001 TRACE [XNIO-APPLICATION I/O-8] org.xnio.nio.selector Beginning select on sun.nio.ch.EPollSelectorImpl@4129489f (with timeout)
Note that rest server actions are missing, from server log, I used a counter in a servlet filter, also server counter < client count
Note: the timestamp on the above might not perfect match on client vs server time stamp respectively.
(3) I am on spring-boot 1.4.1, also tested using 1.3.x same behavior. I also overrides xnio 3.4 vs 3.3.x, also same behavior. Changed configured the following other than default ..
(3.a) Undertow io- 8 threads, task worker 25 core threads, max 64 threads. Server-idle timeout 20 sec, server-no request timeout 20 sec.
(3.b) If I use concurrent jmeter client, same behavior is also observed, the ratio did not worse, actually, it might be slightly better than just single test client.
Please share insights if there is any configuration from my side, or else.
Thanks much,
Qian
8 years, 2 months
Serving an Individual File
by Hicks, Matt
The ResourceManager is great for serving directories, but if I have a very
specific file I want to serve up is there any built-in functionality to
conveniently do so? I've looked through the documentation and the examples
and can't seem to find any references to doing this. Help would be greatly
appreciated.
Thanks
8 years, 2 months
Legacy SSO system integration
by Vinicius F. Kopcheski
Hello,
I'm working to integrate a legacy SSO system with undertow (Wildfly 10), and this SSO is also used with JBoss 4 and 6.
Its strategy is to share the same JSESSIONID between all the applications running inside all those servers.
In my custom Authentication Mechanism, I retrieve the session id that will be used for this session, but just after invoking SecurityContext#authenticationComplete, a new session is created, which takes me to have two session cookies. I mean, they both are named JSESSIONID.
I could find a way to remove this one created by undertow, but I'm not sure this is the best approach.
What do you suggest me to do is this scenario?
_______________
Vinicius Kopcheski
8 years, 2 months
Fwd: Undertow Gzip Content-Encoding with Chuncked Transfer-Encoding
by Antoine Girard
Dear Undertow devs,
I originally posted the below question on the Wildfly forum and was advised
to do it here instead.
I am using the Undertow EncodingHandler with a Gzip Encoding provider, as
follows (sample code taken from an Undertow unit test):
1. final EncodingHandler handler =
2. new EncodingHandler(new ContentEncodingRepository()
3. .addEncodingHandler("gzip",
4. new GzipEncodingProvider(), 50,
5. Predicates.parse("max-content-size[5]")))
6. .setNext(path);
It works fine for very small response bodies, however, when Undertow starts
to use the Chunked Transfer-Encoding, the Gzip compression is simply
ignored.
My question is basically: how to apply a Gzip encoding (or other
compression) before Undertow starts chunking the response?
Could it be a bug?
Also, and I could not really track it down from the source code, how does
Undertow decide to start chunking the response?
Thanks in advance!
Cheers,
Antoine
8 years, 2 months
Custom authentication mechanism
by raphael billard
Hi.
I need to develop my own auhentication mechanism. I have found few
information about how to do it at http://undertow.io/undertow
-docs/undertow-docs-1.2.0/index.html. The paragraph "Servlet Extensions"
indicates that more examples can be found in the deployement guide. But the
given link to the webpage http://undertow.io/und
ertow-docs/undertow-docs-1.2.0/deployment.html is dead. Same thing for
version 1.3.0. Is the deployement guide available from another location ?
Regards.
8 years, 2 months
