title: What would be passed for numsplits in getsplits()
body: <p>My understanding on <strong><code>getSplits()</code></strong> is, <code>FileInputformat</code> class implements <code>Inputformat</code> interface, which has a <code>getSplits()</code> method which is responsible for calculating the split size and the file length. <code>getSplits()</code> has a parameter <code>numSplits</code>. What would be passed to that by default? I tried searching but no luck. I am assuming if <code>isSplittable()</code> is false then <code>0</code> would be passed else some other. But could someone help me in knowing how the value is passed and the relevant portion of the code.</p>