After moving colonies from the production environment
to the upgrade environment, run a complete upgrade in sharded mode,
where <INSTALL_DIR> corresponds to Upgrade_V2,
and <INSTALL_DIR_OLD> corresponds to Upgrade
V1. When you perform a sharded upgrade, all colonies in the upgrade
environment are upgraded, which includes the colonies' shards,
such as the STATISTICS and TRANSACTION/MASTER shards.
- When running the upgrade, do not perform the customizations
or postmigration activities. These postmigration activities are performed
in 4 of "Returning
Colonies to the Production Environment".
- If you are using the yfs.api.history.disable property
or the yfs.api.history.disable.colony.<colony_id> property
to migrate transaction data before history data, do not discard Upgrade_V2
after migrating your transaction data.