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Яке значення буде виведено в print(acc.value) ? acc = sc.accumulator...
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Яке значення буде виведено в
print(acc.value)? acc = sc.accumulator(0)
rdd = sc.parallelize([1,2,3])
def f(x):
acc.add(1) return x r = rdd.map(f).cache()
r.count()
r.collect()
print(acc.value)
0%
0%
0%
100%