Use push style notifications for all server->agent information
Our current approach of having lots of functions that can be called at any given time via AMQP by the agents creates stampeding herd scenarios during failures and recoveries of even small amounts of agents in a reasonable scale system. The aim of this blueprint is to fundamentally revisit the pattern we use for getting information to the agents to ensure that the pace is determined by the server delivering data rather than timeouts/retries on the agent side.
Blueprint information
- Status:
- Complete
- Approver:
- Ihar Hrachyshka
- Priority:
- High
- Drafter:
- Kevin Benton
- Direction:
- Approved
- Assignee:
- Kevin Benton
- Definition:
- Approved
- Series goal:
- Accepted for pike
- Implementation:
-
Implemented
- Milestone target:
-
pike-2
- Started by
- Armando Migliaccio
- Completed by
- Slawek Kaplonski
Related branches
Sprints
Whiteboard
Sep-08-2016(armax): deferred to Ocata
Aug-8-2016(
Apr-4-2016(armax): to start working on dhcp only, spec to be resume. Needs decoupling from OVO
Mar-3-2106(armax): Moved to Newton. Please ensure you re-submit spec if necessary.
Feb-01-2016(armax): still going through spec review, no approver still.
Jan-24-2016(armax): this needs an 'approver' volunteer for spec/code review. The spec under review needs some love too.
Jan-21-2016(armax): needs an approver for code review; a spec is still going in progress of merging.
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Add spec for push notification refactor
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WIP
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Add revision_number to standard attr for OVO
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Add callbacks for networks and subnets in ML2
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Add generic object AMQP notifier
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Add generic object AMQP receiver
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Load generic AMQP receiver in DHCP agent
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Rollback port after failed to add it to router
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Introduce ovo objects for security groups
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Introduce ovo objects for ports
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Introduce ovo objects for networks
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Introduce ovo objects for network segments
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[wip]: add standard attributes to qospolicy
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Fix init method for HasStandardAttr
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Simplify resources module in RPC callbacks
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[WIP]: server-side push notifications for ML2
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Fix modify_
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Add 'to_primitive' for MACAddress and IPNetwork
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Get post-subnet actions out of transaction
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Fix ML2, base db plugin update_subnet for transactions
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Separate floating IP port creation from transaction
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[WIP]: move fip agent gw port create out of txn
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[WIP]: Use callbacks to create DVR floating GW port
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Use revision to discard stale DHCP updates
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API compare-and-swap updates based on revision_number
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Don't create default SG in transaction
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Don't emit SG rule AFTER events until TX closed
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Agent-side receiver cache for ML2 OVO
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Use push notification for security groups
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Use push-notificates for OVSPluginAPI
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Decompose SG RPC API DB methods
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Fixes to allow OVO deserializion of ports/networks
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Add missing port UPDATE event to ML2
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Add bulk pull OVO interface
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Add missing module-level SUBNET ref
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Change _VALID_CLS to store obj names
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Avoid loading network and all rels for subnet query
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Cleanup _find_related_obj
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Use dirname in object recursive import
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Avoid loading network and all rels for subnet query
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Notify L2pop driver from update_
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[wip]: Fix trace in make_compatiable for port
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DNM Revert "Use push-notificates for OVSPluginAPI"
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Move retry decorator to DB methods
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Move db methods to bottom of SG RPC class
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Move info retrieval methods below notifier
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Lazy load of resources in resource cache
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Manually increment revision numbers in revision plugin
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Add support for list querying in resource cache
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OVO: Allow port queries based on security_group_ids
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Add revises_on_change to Binding DB models
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Use objects instead of SQLA deep copies in PortContext
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Ignore duplicate record_
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Revert "Use push notification for security groups"
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Notify L2pop driver from update_
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Notify L2pop driver from update_
