[ https://issues.apache.org/jira/browse/ISIS-1506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andi Huber closed ISIS-1506. ---------------------------- > tomcat shutdown - threads in PARK state > --------------------------------------- > > Key: ISIS-1506 > URL: https://issues.apache.org/jira/browse/ISIS-1506 > Project: Isis > Issue Type: Bug > Components: Core > Affects Versions: 1.13.0 > Reporter: Timothy Simecsek > Assignee: Andi Huber > Priority: Major > Fix For: 2.0.0-M1 > > Attachments: IntelliJ Debug.PNG, Java VisualVM.PNG, catalina.log > > > Hi Dan, > Today I monitored threads created within our application while running on > tomcat 8.5.3x64 because of an issue in my code. > While doing that I noticed that there were two threads called Thread-7 and > Thread-8 (name was stable during a lot of starts but only on the first start) > that I wasn't able to find in my code so I debugged a bit deeper and found > that they were created in > org.apache.isis.core.runtime.threadpool.ThreadPoolSupport:76 during start-up. > After that they are going to state PARK and reside even when undeploying the > application from tomcat. > I haven't looked much at your code but I believe you should call shutdown on > the ThreadPoolExecutor that you are using once you are finished or in > PreDestroy situation. At least I had a very similar issue in my application > and shutdown() solved it. > Please find attached a screenshot of IntelliJ view during debug, the > screenshot of VisualVM and the catalina log from tomcat complaining about > these two threads. -- This message was sent by Atlassian JIRA (v7.6.3#76005)