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https://issues.apache.org/jira/browse/IGNITE-18261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Puchkovskiy updated IGNITE-18261:
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Description:
For IGNITE-18085, we need a mechanism for a distributed, guaranteed, in-order
delivery of events concerning the Logical Topology to all nodes of the cluster.
CMG nodes get the corresponding events automatically thanks to the RAFT
replication mechanism. To extend delivery (using RAFT) to the whole cluster we
can use learners: run a learner per non-CMG node.
When a CMG raft group is started, learners set needs to be computed as all
nodes of the cluster that are not in the CMG. When the logical topology gets
changed (or when CMG member set gets changed), we need to recalculate learners
set and use {{changePeers}} accordingly.
was:For IGNITE-18085, we need a mechanism for a distributed, guaranteed,
in-order delivery of events concerning the Logical Topology to all nodes of the
cluster. CMG nodes get the corresponding events automatically thanks to the
RAFT replication mechanism. To extend delivery (using RAFT) to the whole
cluster we can use learners: run a learner per non-CMG node.
> Use RAFT learners to get updates of logical topology on non-CMG nodes
> ---------------------------------------------------------------------
>
> Key: IGNITE-18261
> URL: https://issues.apache.org/jira/browse/IGNITE-18261
> Project: Ignite
> Issue Type: Improvement
> Reporter: Roman Puchkovskiy
> Assignee: Roman Puchkovskiy
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-beta2
>
>
> For IGNITE-18085, we need a mechanism for a distributed, guaranteed, in-order
> delivery of events concerning the Logical Topology to all nodes of the
> cluster. CMG nodes get the corresponding events automatically thanks to the
> RAFT replication mechanism. To extend delivery (using RAFT) to the whole
> cluster we can use learners: run a learner per non-CMG node.
> When a CMG raft group is started, learners set needs to be computed as all
> nodes of the cluster that are not in the CMG. When the logical topology gets
> changed (or when CMG member set gets changed), we need to recalculate
> learners set and use {{changePeers}} accordingly.
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