Due to a ransomware attack, the wiki was reverted to a July 2022 version. . We apologize for the lack of a more recent valid backup.
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At the time of this writing, all services with the exception of topology management have access to distributed stores.
Event ordering
For the eventually consistent stores, events are partially ordered with vector clocks. The logical clock used by the DeviceStore and LinkStore is a combination of the number of mastership handoffs for a device (its term number) and a local sequence number incremented per timestamp generation. The HostStore relies on system time (the wall clock).
Cluster Management
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ONOS also uses the term 'cluster' to refer to connected subgraphs of the network topology, which has no association to the cluster in the multi-instance sense. When clusters are mentioned in this section, they are strictly in terms of the latter. |
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