How are we going with Nova Kilo specs after our review day?

Posted on by mikal

Time for another summary I think, because announcing the review day seems to have caused a rush of new specs to be filed (which wasn’t really my intention, but hey). We did approve a fair few specs on the review day, so I think overall it was a success. Here’s an updated summary of the state of play:

API

API (EC2)

  • Expand support for volume filtering in the EC2 API: review 104450.
  • Implement tags for volumes and snapshots with the EC2 API: review 126553 (fast tracked, approved).

Administrative

  • Actively hunt for orphan instances and remove them: review 137996 (abandoned); review 138627.
  • Check that a service isn’t running before deleting it: review 131633.
  • Enable the nova metadata cache to be a shared resource to improve the hit rate: review 126705 (abandoned).
  • Implement a daemon version of rootwrap: review 105404.
  • Log request id mappings: review 132819 (fast tracked).
  • Monitor the health of hypervisor hosts: review 137768.
  • Remove the assumption that there is a single endpoint for services that nova talks to: review 132623.

Block Storage

  • Allow direct access to LVM volumes if supported by Cinder: review 127318.
  • Cache data from volumes on local disk: review 138292 (abandoned); review 138619.
  • Enhance iSCSI volume multipath support: review 134299.
  • Failover to alternative iSCSI portals on login failure: review 137468.
  • Give additional info in BDM when source type is “blank”: review 140133.
  • Implement support for a DRBD driver for Cinder block device access: review 134153.
  • Refactor ISCSIDriver to support other iSCSI transports besides TCP: review 130721 (approved).
  • StorPool volume attachment support: review 115716.
  • Support Cinder Volume Multi-attach: review 139580 (approved).
  • Support iSCSI live migration for different iSCSI target: review 132323 (approved).

Cells

Containers Service

Database

Hypervisor: Docker

Hypervisor: FreeBSD

  • Implement support for FreeBSD networking in nova-network: review 127827.

Hypervisor: Hyper-V

Hypervisor: Ironic

Hypervisor: VMWare

  • Add ephemeral disk support to the VMware driver: review 126527 (fast tracked, approved).
  • Add support for the HTML5 console: review 127283.
  • Allow Nova to access a VMWare image store over NFS: review 126866.
  • Enable administrators and tenants to take advantage of backend storage policies: review 126547 (fast tracked, approved).
  • Enable the mapping of raw cinder devices to instances: review 128697.
  • Implement vSAN support: review 128600 (fast tracked, approved).
  • Support multiple disks inside a single OVA file: review 128691.
  • Support the OVA image format: review 127054 (fast tracked, approved).

Hypervisor: libvirt

Instance features

Internal

  • A lock-free quota implementation: review 135296.
  • Automate the documentation of the virtual machine state transition graph: review 94835.
  • Fake Libvirt driver for simulating HW testing: review 139927 (abandoned).
  • Flatten Aggregate Metadata in the DB: review 134573 (abandoned).
  • Flatten Instance Metadata in the DB: review 134945 (abandoned).
  • Implement a new code coverage API extension: review 130855.
  • Move flavor data out of the system_metadata table in the SQL database: review 126620 (approved).
  • Move to polling for cinder operations: review 135367.
  • PCI test cases for third party CI: review 141270.
  • Transition Nova to using the Glance v2 API: review 84887.
  • Transition to using glanceclient instead of our own home grown wrapper: review 133485 (approved).

Internationalization

  • Enable lazy translations of strings: review 126717 (fast tracked).

Networking

Performance

  • Dynamically alter the interval nova polls components at based on load and expected time for an operation to complete: review 122705.

Scheduler

  • A nested quota driver API: review 129420.
  • Add a filter to take into account hypervisor type and version when scheduling: review 137714.
  • Add an IOPS weigher: review 127123 (approved, implemented); review 132614.
  • Add instance count on the hypervisor as a weight: review 127871 (abandoned).
  • Allow extra spec to match all values in a list by adding the ALL-IN operator: review 138698 (fast tracked, approved).
  • Allow limiting the flavors that can be scheduled on certain host aggregates: review 122530 (abandoned).
  • Allow the remove of servers from server groups: review 136487.
  • Convert get_available_resources to use an object instead of dict: review 133728 (abandoned).
  • Convert the resource tracker to objects: review 128964 (fast tracked, approved).
  • Create an object model to represent a request to boot an instance: review 127610 (approved).
  • Decouple services and compute nodes in the SQL database: review 126895 (approved).
  • Enable adding new scheduler hints to already booted instances: review 134746.
  • Fix the race conditions when migration with server-group: review 135527 (abandoned).
  • Implement resource objects in the resource tracker: review 127609.
  • Improve the ComputeCapabilities filter: review 133534.
  • Isolate Scheduler DB for Filters: review 138444.
  • Isolate the scheduler’s use of the Nova SQL database: review 89893.
  • Let schedulers reuse filter and weigher objects: review 134506 (abandoned).
  • Move select_destinations() to using a request object: review 127612 (approved).
  • Persist scheduler hints: review 88983.
  • Refactor allocate_for_instance: review 141129.
  • Stop direct lookup for host aggregates in the Nova database: review 132065 (abandoned).
  • Stop direct lookup for instance groups in the Nova database: review 131553 (abandoned).
  • Support scheduling based on more image properties: review 138937.
  • Trusted computing support: review 133106.

Scheduling

Security

  • Make key manager interface interoperable with Barbican: review 140144 (fast tracked, approved).
  • Provide a reference implementation for console proxies that uses TLS: review 126958 (fast tracked, approved).
  • Strongly validate the tenant and user for quota consuming requests with keystone: review 92507.

Service Groups

Sheduler

  • Add soft affinity support for server group: review 140017 (approved).