presto-main/src/main/java/io/prestosql/server/CoordinatorModule.java/CoordinatorModule/createStatementTimeoutExecutor
class CoordinatorModule:    @Provides
    @Singleton
    @ForStatementResource
    public static ScheduledExecutorService createStatementTimeoutExecutor(TaskManagerConfig config)
    {
        return newScheduledThreadPool(config.getHttpTimeoutThreads(), daemonThreadsNamed("statement-timeout-%s"));
    }