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- sync-all-nodes: Is a more robust process. Will check what the remote nodes have and will review what needs to be updated based on the local database, with the Primary as a source of truth. That means, if the node does not exist in the poller, will create the node in the poller. If the node does not exist in the Primary, will be removed from the poller. If the information is not the same (based in the last updated field), will be updated in the poller. More robust, but less efficient. It has to do a remote call to get all nodes from the pollers, and check one by one all the nodes. Important notes:
- If the Primary cannot get the nodes from the poller, the synchronisation will not be done.
- If the nodes list in the Primary for one poller is 0, the remote nodes won't be removed. As it could mean that the nodes where not correctly synchronised in the beginning, or there was an issue trying to get the Primary nodes list.
- sync-processed-nodes: This process will update all nodes in remote pollers based on the information updated by opnode_admin. This is a less robust process, as all the changes done outside opnode_admin won't be taken into account, but it is more effective, as it will sync just the data needed.
- opnode_admin: Will update the information to be processed in background - So, it is a non blocking operation.
- resync_nodes: In case it is necessary pull the nodes from the poller for some reason (Discovery failed to bring initial nodes, ex).
Redundant Node Polling
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