Mirza Aliev created IGNITE-24892:
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Summary: Support availability of SC zone when one node left in
two-nodes scenario
Key: IGNITE-24892
URL: https://issues.apache.org/jira/browse/IGNITE-24892
Project: Ignite
Issue Type: Improvement
Reporter: Mirza Aliev
h3. Motivation
Strongly Consistent (SC) mode of a zone guaranties data consistency using Raft
algorithm. Loosing majority of nodes hosting partition means that SC partition
becomes unavailable.
Because of the Raft algorithm guaranties, we could believe that in two nodes
scenario if data has been applied to Raft, that means that data is applied to
both nodes.
In that case in SC mode, even if lose one node, if we could recover
availability of a partition, we won't lose data.
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