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Add a `bin/hunks` script to manage migrations of hunk data

Authored by epriestley on May 25 2014, 5:02 PM.
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Ref T4045. Ref T5179. While we'll eventually need to force a migration, we can let installs (particularly large installs) do an online migration for now. This moves hunks to the new storage format one at a time.

(Note that nothing writes to the new store yet, so this is the only way to populate it.)

WARNING: Installs, don't run this yet! It won't compress the data. Wait until it can also do compression.
Test Plan

Added a break; after migrating one row and moved a few rows over. Spot checked them in the database and viewed the affected diffs.

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epriestley retitled this revision from to Add a `bin/hunks` script to manage migrations of hunk data.
epriestley updated this object.
epriestley edited the test plan for this revision. (Show Details)
epriestley added a reviewer: btrahan.
btrahan edited edge metadata.
btrahan added inline comments.

if the NOTE to installs is really important / the code isn't in this stack of diffs somewhere, i'd put the note here

This revision is now accepted and ready to land.Jun 3 2014, 10:11 PM

D9292 is the one that adds the compression bit.

epriestley updated this revision to Diff 22330.

Closed by commit rP5b1262c98b8f (authored by @epriestley).