Method maintain

src/compute-client/src/controller.rs:1064–1069

(&mut self)

    #[mz_ore::instrument(level = "debug")]
    fn maintain(&mut self) {
        // Perform instance maintenance work.
        for instance in self.instances.values_mut() {
            instance.call(Instance::maintain);
        }
    }

    /// Allow writes for the specified collections on `instance_id`.
    ///