Benjamin Trent 08843ba62b
[ML] Adds progress reporting for transforms (#41278) (#41529)
* [ML] Adds progress reporting for transforms

* fixing after master merge

* Addressing PR comments

* removing unused imports

* Adjusting afterKey handling and percentage to be 100*

* Making sure it is a linked hashmap for serialization

* removing unused import

* addressing PR comments

* removing unused import

* simplifying code, only storing total docs and decrementing

* adjusting for rewrite

* removing initial progress gathering from executor
2019-04-25 11:23:12 -05:00
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