Ocata Series Release Notes

Ocata Series Release Notes


New Features

  • A new recovery action “REBOOT” has been added to the health policy.
  • Added support to listen to heat event notifications for stack failure detection.
  • The numeric properties in the spec for a scaling policy now have stricter validations.

Bug Fixes

  • The bug where the availability zone info from a nova server deployment was not available has been fixed.
  • The parameter checking for the cluster update operation may incorrectly parse the provided value(s). This bug has been fixed.


New Features

  • A new API “cluster-op” is introduced to trigger a profile type specific operation on all nodes in a cluster. This API is available since API micro-version 1.4.
  • Docker container profile now supports operations like restart, pause and unpause.
  • A new, optional parameter “destroy_after_deletion” is added to the cluster-del-nodes request since API micro-version 1.4.
  • The health manager is improved to use dynamic timers instead of fix interval timers when polling cluster’s status.
  • Error messages returned from API requests are now unified. All parameter validation failures of the same reason returns a similar message.
  • A configuration option “exclude_derived_actions” is introduced into the “dispatchers” group for controlling whether derived actions should lead into event notifications and/or DB records.
  • A event_purge subcommand is added to senlin-manage tool for purging events generated in a specific project.
  • Health policy recovery actions now contains a list of dictionaries instead of a list of simple names. This is to make room for workflow invocations.
  • Many new operations are added to os.nova.server profile type. These operations can be shown using the “profile-type-ops” API.
  • Added new node-operation API for performing profile type supported operations on a node.
  • New API “node-op” is introduced for triggering profile type specific operations on a node. This is available since API micro-version 1.4.
  • Event notifications (versioned) are added to enable senlin-engine to send out messaging events when configured. The old event repo is adapted to follow the same design.
  • Versioned request support in API, RPC and engine layers.
  • Basic support for event/notification.
  • Enables osprofiler support.
  • Rally plugin for cluster scaling in.
  • Batch policy support for cluster actions.
  • Integration test for message receiver.
  • A new API “profile-type-ops” is introduced to expose the profile type specific operations’ schema to end users.
  • Integrated OSProfiler into Senlin, support using OSProfiler to measure performance of Senlin.
  • Profile type list and policy type list now returns the support status for each type since API micro-version 1.5.
  • RPC requests from the API service to the engine service are fully managed using versioned objects now. This will enable a smooth upgrade for the service in future.

Upgrade Notes

  • For resources which has a user, a project and a domain property, the lengths of these columns are increased from 32 chars to 64 chars for a better conformance with Keystone.
  • New setup configuration items are provided to enable the “message” and/or “database” event generation.

Critical Issues

  • The problem of having clusters or nodes still locked by actions executed by a dead engine is fixed.

Security Issues

  • Multi-tenancy is enhanced so that an admin role user has to respect project isolation unless explicitly asking for an exception.

Bug Fixes

  • Fixed the problem that health manager related configuration options were not properly exposed.
  • Removed LB_STATUS_POLLING from health policy since LBaaS still cannot provide reliable node status update.
  • The health policy recovery actions is designed to be a list but the current implementation can only handle one action. This is now explicitly checked.
  • Fixed the problem that the “updated_at” timestamp of a node was not correctly updated.
  • The notifications of profile type specific operations were not properly reporting the operation’s name. This has been fixed.
  • Fixed the notification logic so that it uses the proper transport obtained from oslo.messaging.
  • Fixed bug related to cluster-collect API where the path parameter is None.
  • When attaching a policy (especially a health policy) to a cluster, users may choose to keep the policy disabled. This has to be considered in the health manager and other places. This issue is fixed.
  • A nova server, if booted from volume, will not return a valid image ID. This situation is now taken care of.

Other Notes

  • The retrieval of some resources such as actions and policies are optimized to avoid object instantiation.
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