[ https://issues.apache.org/jira/browse/NIFI-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy LoPresto updated NIFI-5361: -------------------------------- Fix Version/s: 1.7.1 > Upon restart of NiFi, some processors show Active Threads but never actually > run > -------------------------------------------------------------------------------- > > Key: NIFI-5361 > URL: https://issues.apache.org/jira/browse/NIFI-5361 > Project: Apache NiFi > Issue Type: Bug > Components: Core Framework > Reporter: Mark Payne > Assignee: Mark Payne > Priority: Critical > Fix For: 1.8.0, 1.7.1 > > > Upon restart, if there are a large number of processors that take a long time > to start up (i.e., their {{@OnScheduled}} methods take a long time to > complete), then other processors may also timeout while waiting for their > {{@OnScheduled}} method to complete. It looks like this is due to the fact > that when we schedule many processors we determine the 'timeout timestamp' > before submitting the background task to call {{@OnScheduled}}. As a result, > if several processors don't finish or take a long time to finish, then other > processors may just sit, waiting for their chance to have {{@OnScheduled}} > called and eventually timeout before they even have a chance to invoke the > method. > When this happens, the result is that the Runnable to call {{@OnScheduled}} > never is called before the corresponding {{Future}} is canceled. So the > Processor is never scheduled. However, its Active Thread count has already > been incremented. So it appears as if the Processor has an Active Thread but > it will never make progress. -- This message was sent by Atlassian JIRA (v7.6.3#76005)