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https://issues.apache.org/jira/browse/IGNITE-16012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirill Gusakov updated IGNITE-16012:
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Summary: Raft changePeers behavior must be updated to async version (was:
Raft changePeers behavior must be updated to support rebalance needs)
> Raft changePeers behavior must be updated to async version
> ----------------------------------------------------------
>
> Key: IGNITE-16012
> URL: https://issues.apache.org/jira/browse/IGNITE-16012
> Project: Ignite
> Issue Type: Task
> Reporter: Kirill Gusakov
> Priority: Major
> Labels: ignite-3
>
> We need to change
> org.apache.ignite.raft.jraft.rpc.impl.RaftGroupServiceImpl#changePeers to
> support the following scenarios:
> - changePeers needs to support updating of in-progress changePeers:
> {code:java}
> if (leaderNode.cfgCtx.stage == STAGE_CATCHING_UP) {
> <update the list of catching up peers>
> return OK;
> } else if (leaderNode.cfgCtx.stage == STAGE_NONE) {
> if (leaderNode.currentPeers == newPeers) {
> rebalanceListener.onRebalanceCommited();
> return OK;
> } else {
> <start new changePeers>
> return OK;
> }
> } else {
> return BUSY; // it should be a signal to postpone new changePeers call
> }{code}
> - changePeers must be an asynchronous operation and returns as soon as
> possible (after successful updating catching up nodes, if needed)
>
> (Phase 1)
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