subscriber schedular keep alive after complete

[Kotlin-GDE]

hi

i use rxjava2 jdbc, when subscriber terminate the owner schedular keep alive ,i forse to shutdow it with create a schedular type io and i observerOn this schedular, so when subscriber complete task i try to shutdown this schedular but it stay alive !! the shutdown() method can't kill it !!!! how to release resources (schedulars) when subscriber complete ??