[SPARK-6910] [WiP] Reduce number of operations to the cluster.#7049

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oliviertoupin wants to merge 2 commits intoapache:branch-1.4from

oliviertoupin:spark-6910

Commits on Jun 26, 2015

More efficient way of poking the namenode.
Olivier Toupin
committed
Lazy footers discovery + Trust metastore schema. This reduce the number of poked files drastically on when a table have a lot of files and/or partitions
Olivier Toupin
committed