Thank you! Dream * Excel * Explore * Inspire Jon McAlexander Infrastructure Engineer Asst Vice President
Middleware Product Engineering Enterprise CIO | EAS | Middleware | Infrastructure Solutions 8080 Cobblestone Rd | Urbandale, IA 50322 MAC: F4469-010 Tel 515-988-2508 | Cell 515-988-2508 jonmcalexan...@wellsfargo.com This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. > -----Original Message----- > From: Mark Thomas <ma...@apache.org> > Sent: Wednesday, February 9, 2022 2:09 PM > To: users@tomcat.apache.org > Subject: Re: Duplicate accept detected. This is a known OS bug. > > On 09/02/2022 19:35, jonmcalexan...@wellsfargo.com.INVALID wrote: > > Thanks Mark, > > > > This team is has Some of the apps running on PCF and also running both > JAVA 8 and JAVA 11. This is using Oracle Java on RHEL 7.9. > > > > In reading through the activity log on the bug report, it appears that it's > being seen on multiple Linux distros as well as on Windows. This feels like > something at a fundamental root, but at what actual level? > > Linux. > > The Windows reports are false positives. I'm currently looking at how to > filter > those out. > > If you are using RHEL then I'd suggest: > - use the C test case from that bug to confirm the issue with your OS > - raising this as an issue with RedHat > > Mark > > > > > > Thanks, > > > > Dream * Excel * Explore * Inspire > > Jon McAlexander > > Infrastructure Engineer > > Asst Vice President > > > > Middleware Product Engineering > > Enterprise CIO | EAS | Middleware | Infrastructure Solutions > > > > 8080 Cobblestone Rd | Urbandale, IA 50322 > > MAC: F4469-010 > > Tel 515-988-2508 | Cell 515-988-2508 > > > > jonmcalexan...@wellsfargo.com > > This message may contain confidential and/or privileged information. If you > are not the addressee or authorized to receive this for the addressee, you > must not use, copy, disclose, or take any action based on this message or any > information herein. If you have received this message in error, please advise > the sender immediately by reply e-mail and delete this message. Thank you > for your cooperation. > > > > > >> -----Original Message----- > >> From: Mark Thomas <ma...@apache.org> > >> Sent: Wednesday, February 9, 2022 12:02 PM > >> To: users@tomcat.apache.org > >> Subject: Re: Duplicate accept detected. This is a known OS bug. > >> > >> On 09/02/2022 17:54, jonmcalexan...@wellsfargo.com.INVALID wrote: > >>> Hi all, > >>> > >>> I have an application team occasionally getting the following > >>> exception with > >> their application. They are currently using Tomcat 9.0.56. I'm not > >> finding much on the intertubes in regards to this. Does anyone have any > information? > >>> > >>> org.apache.tomcat.util.net.Acceptor run > >>> SEVERE: Socket accept failed > >>> java.io.IOException: Duplicate accept detected. This is a known OS > >>> bug. Please consider reporting that you are affected: > >>> > >> > https://urldefense.com/v3/__https://bugs.launchpad.net/ubuntu/*source > >> / > >>> linux/*bug/1924298__;Kys!!F9svGWnIaVPGSwU!- > >> gTVrWxM1UlX26aYBCXFXX76_g8g > >>> E1EwzxIvjtqNJZi6xecg6YS_HhNx3iwYnanI-GXZ-4Y$ > >> > >> That bug and the Java issue linked from it should answer most questions. > >> The linked Spring bug is generally interesting but doesn't shed much > >> light on this issue. > >> > >> What do you want to know that they don't address? > >> > >> Mark > >> > >> > >>> at > >> org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint > >> .ja > >> va:545) > >>> at > >> org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint > >> .ja > >> va:78) > >>> at org.apache.tomcat.util.net.Acceptor.run(Acceptor.java:129) > >>> at java.base/java.lang.Thread.run(Thread.java:834) > >>> > >>> > >>> Thanks, > >>> > >>> Dream * Excel * Explore * Inspire > >>> Jon McAlexander > >>> Infrastructure Engineer > >>> Asst Vice President > >>> > >>> Middleware Product Engineering > >>> Enterprise CIO | EAS | Middleware | Infrastructure Solutions > >>> > >>> 8080 Cobblestone Rd | Urbandale, IA 50322 > >>> MAC: F4469-010 > >>> Tel 515-988-2508 | Cell 515-988-2508 > >>> > >>> > >> > jonmcalexan...@wellsfargo.com<mailto:jonmcalexan...@wellsfargo.com> > >>> This message may contain confidential and/or privileged information. > >>> If you > >> are not the addressee or authorized to receive this for the > >> addressee, you must not use, copy, disclose, or take any action based > >> on this message or any information herein. If you have received this > >> message in error, please advise the sender immediately by reply > >> e-mail and delete this message. Thank you for your cooperation. > >>> > >>> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >> For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
