badger/migrate: num_go_routines flag fragment

oasisprotocol · Jun 16, 2021 · 14aefd1 · 14aefd1
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+badger/migration: `badger.migrate.num_go_routines` flag
+
+The flag enables controlling the number of go routines badger uses when
+doing the v2 -> v3 migration. Use the flag to lower memory pressure during
+the migration, by lowering the amount of workers to e.g. 1.