question: synchronized void start ( GridStartContext startCtx ) throws IgniteCheckedException { if ( startGuard . compareAndSet ( false , true ) ) { try { starterThread = Thread . currentThread ( ) ; start0 ( startCtx ) ; } catch ( Exception e ) { if ( log != null ) stopExecutors ( log ) ; throw e ; } finally { startLatch . countDown ( ) ; } } else U . awaitQuiet ( startLatch ) ; }
target:  Starts grid with given configuration.