Garbage Collection: Sub Jobs and General Best practice
Does the community suggest running java garbage collection after executing subjobs or is there a better way to deal with those errors when its not possible to add more hardware to the solution?
Did you get "java.lang.OutOfMemoryError: GC overhead limit" issue?
The problem is that when failing with the “java.lang.OutOfMemoryError: GC overhead limit exceeded” error JVM is signalling that your application is spending too much time in garbage collection with little to show for it.
Usually, increasing the heap size with -Xmx parameter can give a quick fix for this kind of issue.
It is recommended that you check or profile the job design. Performance issue usually cause by the DB connection or the job design.