--- schema_version: "1" id: ed16a2c28b3774b28e8fc852d79f1d69c1d8ef0d98f5225b70598ef4cad917e3 title: Scheduler Service Release Notes - Mule 4 collection: mulesoft version: current locale: en-us portal_url: https://docs.salesforce.com/mulesoft/current/en-us/release-notes/mule-runtime/service-scheduler-release-notes.md canonical_url: https://docs.mulesoft.com/release-notes/mule-runtime/service-scheduler-release-notes source_site: docs.mulesoft.com content_type: documentation content_hash: cc1b8fa40eed8546d811ec13a71c3d01563bd480b42fab040f9281d2cf8dd4ee description: MuleSoft Documentation Site latest: true --- --- product: Release Notes version: master --- # Scheduler Service Release Notes - Mule 4 > For the full documentation index, see: https://docs.mulesoft.com/llms.txt ## 1.3.2 **Jun 12, 2020** ### New Features - None. ### Fixed Issues - Race condition between scheduler stop and scheduleWithFixedDelay leads to a memory leak. (MULE-18471) ## 1.2.6 **Jun 12, 2020** ### New Features - None. ### Fixed Issues - Race condition between scheduler stop and scheduleWithFixedDelay leads to a memory leak. (MULE-18471) ## 1.3.1 **Jun 10, 2020** ### New Features - None. ### Fixed Issues - CustomScheduler#destroyThreadGroup is taking more than configured shutdownTimeout. (MULE-18224) ## 1.2.5 **Jun 10, 2020** ### New Features - None. ### Fixed Issues - CustomScheduler#destroyThreadGroup is taking more than configured shutdownTimeout. (MULE-18224) ## 1.2.2 **May 22, 2019** ### New Features - None. ### Fixed Issues - Race condition in prestartCoreThreads for a Scheduler. (MULE-16858) ## 1.1.10 **May 22, 2019** ### New Features - None. ### Fixed Issues - Race condition in prestartCoreThreads for a Scheduler. (MULE-16858) ## 1.2.1 **May 20, 2019** ### New Features and Enhancements - Allow the properties in scheduler-pools.conf to be configured as system property. (MULE-16788) ### Fixed Issues - Setting low heap memory in multicore machine causes Mule to fail to start. (MULE-16829) - NPE when a customScheduler is shutting down itself. (MULE-16760) - WARN logged when fixed rate task overlap in a single thread. (MULE-16759) ## 1.1.9 **May 20, 2019** ### New Features - None. ### Fixed Issues - Setting low heap memory in multicore machine causes Mule to fail to start. (MULE-16829) ## 1.2.0 **April 25, 2019** ### New Features - Allow overriding the location of the Scheduler config file via a system property. (MULE-14552) ### Fixed Issues - NPE when a customScheduler is shutting down itself. (MULE-16760) - WARN logged when fixed rate task overlap in a single thread Scheduler. (MULE-16759) - Race condition in ThreadGroup destroying for customScheduler threadGroup. (MULE-16516) - Rejected from scheduler warning has too high frequency in logs. (MULE-15588) - Avoid keeping references to muleContext from a CustomScheduler. (MULE-14907) - Custom Scheduler shutdown from a thread from the same scheduler fails. (MULE-14736) - Cannot destroy thread groups that have commons-pool evictor threads. (MULE-14675) - ThrottlingScheduler active tasks count breaks when tasks are cancelled.. (MULE-14590) - Delayed task is triggered when target Scheduler is busy is lost. (MULE-14577) \*| Scheduler#scheduleAtFixedRate cancels task if triggered while previous is still running. (MULE-14572) - Unclear error with missing parameter in Scheduler configuration. (MULE-14558) - Schedulers don’t indicate which one is exhausted. (MULE-14524) - Add data about dangling threads when a ThreadGroup can’t be destroyed. (MULE-15666) - Add an option to always log the creation location of a Schedule. (MULE-15531) ## 1.1.8 **April 25, 2019** ### New Features - None. ### Fixed Issues - NPE when a customScheduler is shutting down itself. (MULE-16760) - WARN logged when fixed rate task overlap in a single thread Scheduler. (MULE-16759) - Race condition in ThreadGroup destroying for customScheduler threadGrou. (MULE-16516) ## 1.1.7 **October 9, 2018** ### New Features - None. ### Fixed Issues - Rejected from scheduler warning has too high a frequency in logs. (MULE-15588) - Leaks through hard references to types, classloaders, and Schedulers. (MULE-15716) - Add data about dangling threads when a ThreadGroup can’t be destroyed. (MULE-15666) - Add an option to always log the creation location of a Scheduler. (MULE-15531) ## 1.1.6 **July 24, 2018** ### New Features - None. ### Fixed Issues - Scheduler Service: provide a method to determine if current thread is CPU. (MULE-15415) ## 1.1.5 **May 9, 2018** ### New Features - None. ### Fixed Issues - Avoid keeping references to muleContext from a CustomScheduler. (MULE-14907) ## 1.1.4 **March 16, 2018** ### New Features - None. ### Fixed Issues - Custom scheduler shutdown from a thread from the same Scheduler fails. (MULE-14736) - Minor performance improvements. (MULE-14693) ## 1.1.3 **March 7, 2018** ### New Features - None. ### Fixed Issues - Cannot destroy thread groups that have commons-pool evictor threads. (MULE-14675) - Race condition in reactor causes premature thread. (MULE-14665) ## 1.1.2 **March 5, 2018** ### New Features - None. ### Fixed Issues - ThrottlingScheduler active tasks count breaks when tasks are cancelled. (MULE-14590) - Delayed task is triggered when target scheduler is busy is lost. (MULE-14577) - Too many ThreadGroup instances leaked after redeploy. (MULE-14658) ## 1.1.1 **January 31, 2018** ### New Features - Allow to override the location of the scheduler config file via system property. (MULE-14552) ### Fixed Issues - Scheduler#scheduleAtFixedRate cancels task if triggered while previous is still running. (MULE-14572) - Unclear error with missing parameter in scheduler configuration. (MULE-14558) - Schedulers don’t indicate which one is exhausted. (MULE-14524) - Prevent classloader leak through accesscontext in thread. (MULE-14179) ## 1.1.0 **January 30, 2018** Initial Release. ## See Also - [Known Issues](https://help.salesforce.com/s/issues)