question: private void shutdown ( ) { if ( execSvc != null ) execSvc . shutdown ( 5000 ) ; if ( msgExecSvc != null ) msgExecSvc . shutdownNow ( ) ; try { job . dispose ( true ) ; } catch ( IgniteCheckedException e ) { U . error ( log , "Failed to dispose job." , e ) ; } }
target:  Stops all executors and running tasks.