0018383: accept returns duplicate endpoints under load

ID	Project	Category	View Status	Date Submitted	Last Update

0018383	CentOS-7	general	public	2022-01-02 13:28	2022-03-14 09:58

Reporter	thomaskiesl	Assigned To
Priority	high	Severity	major	Reproducibility	unable to reproduce
Status	new	Resolution	open
Product Version	7.9.2009

Summary	0018383: accept returns duplicate endpoints under load
Description	The following issue is reported for Ubuntu: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298 The problem also occure on my web application on CentOs 7: On my Spring/Tomcat web application I receive the following error: 2021-12-25 08:38:31,250 ERROR \| https-jsse-nio-18443-Acceptor \| org.apache.tomcat.util.net.Acceptor \| Socket accept failed java.io.IOException: Duplicate accept detected. This is a known OS bug. Please consider reporting that you are affected: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298 at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:545) at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:78) at org.apache.tomcat.util.net.Acceptor.run(Acceptor.java:129) at java.base/java.lang.Thread.run(Thread.java:833) The guys from Tomcat added a check to avoid issues like as described in this bug report: https://github.com/spring-projects/spring-framework/issues/26434#issuecomment-1003713436
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Date Modified	Username	Field	Change
2022-01-02 13:28	thomaskiesl	New Issue
2022-03-14 09:58	ManuelWolfshant	Note Added: 0038878

ManuelWolfshant 2022-03-14 09:58 manager ~0038878	CentOS is a rebuild of the sources used to create RHEL. Please submit your request to Redhat via bugzilla.redhat.com and if/when RH accepts it and incorporates it into RHEL and releases a patched version, then CentOS will pick it up automatically. Keep in mind that given that RHEL7 is in maintenance mode, RH only accepts "important" bugs.