https://bz.apache.org/bugzilla/show_bug.cgi?id=57943
Bug ID: 57943 Summary: NioEndpoint, one poller thread died Product: Tomcat 7 Version: 7.0.54 Hardware: PC OS: Linux Status: NEW Severity: critical Priority: P2 Component: Connectors Assignee: dev@tomcat.apache.org Reporter: sunqi...@163.com when i restart tomcat,the tomcat can not process request soon,i find an error log Exception in thread "http-nio-7001-ClientPoller-1" java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) at java.util.HashMap$KeyIterator.next(HashMap.java:828) at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010) at org.apache.tomcat.util.net.NioEndpoint$Poller.timeout(NioEndpoint.java:1421) at org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:1215) at java.lang.Thread.run(Thread.java:662) tomcat poller thread is not catch this exception,so this thread is died. connection is accept but has no poller thread to process. -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org