Mapred. Child.Java.opts 06.12.2013 20:32 пользователь "praveenesh kumar" <praveen...@gmail.com> написал:
> Hi all, > > I am using my custom build class and my UDF is acting as wrapper. > I need to pass the command line argument to my UDF, which can be passed > down to the actual class that needs it. > > One way would be to use the standard command line passing method and pass > the parameter via constructors down to the class which needs it. But that > doesn't seems to be the right way to me as it requires too much of code > changes, I want to keep my UDF as a separate entity. > > Other way (which I am using) is defining the external parameter as system > variable and calling System.getenv( ), get that parameter, which is also > not that ideal as it requires hard-coding the variable on all hadoop nodes. > > What I am trying to look, something which I can pass via something like Pig > -D<my parameter=value> and use System.getProperty( ) method to get that > parameter. > But I am not able to find the property. I was wondering is there a way I > can use some other method or alternative to pass the command line variable > using Pig -D method or how pig UDFs are called behind the scenes so that I > can think of some other alternative. > > Regards > Praveenesh >
