Hi Bill,
I've used the following in my UDFs:
public static boolean isBackend(JobContext ctx) {
// HACK borrowed from HCatLoader: this property should only be
set
on the backend
return ctx.getConfiguration().get("mapred.task.id",
"").length() > 0;
}
I recall seeing other hacks to accomplish the same task; the above
seems to work for now.
stan
On Fri, Feb 3, 2012 at 2:21 PM, Bill Graham <[email protected]> wrote:
> Hi,
>
> Is there any way to tell in the constructor of a StoreFunc whether it's
> being invoked on the client or on the cluster?
>
> Background: on the client I read configs from a config file and set them on
> the Configuration object, which I then use on the server. Works great, but
> I want to throw an exception if the config isn't found on the client only.
>
> thanks,
> Bill
