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adding documentation

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Shlomi Noach 2016-05-20 16:22:28 +02:00
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doc/testing-on-replica.md
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# Testing on replica # Testing on replica
`gh-ost`'s design allows for trusted and reliable tests of the migration without compromising production data integrity.
Test on replica if you:
- Are unsure of `gh-ost`, have not gained confidence into its workings
- Just want to experiment with a real migration without affecting production (maybe measure migration time?)
- Wish to observe data change impact