* * Intended if you want to update the metadata * Only meant to be called from the admin tool / scripts * * This will create a new copy of instance so that any other requests * that are currently working with the old copy of instance * will go through using the old copy * Any requests that try to get a copy of instance while it is being modified here will have to wait * till the RW-instance is released */.

* * MUST be called after taking an InstanceRW * Failing to call this will lead to deadlocks */.