hadoop - How to get the destination of a certain map task output file in ReduceTask.java

Question

as said in the headline, I want to retreive the location of a certain intermediate map output by the taskAttemptId.

I'm able to pull the relative destination by using the "TaskTracker.getIntermediateOutputDir()" function, but how do I get absolute path?

Thanks for any help!

Answer 1

变量“mapOutputLoc”以 URL 的形式包含有关数据所在位置的信息。