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https://issues.apache.org/jira/browse/RATIS-2296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz-wo Sze moved HDDS-13053 to RATIS-2296:
------------------------------------------
Component/s: raft-group
(was: OM HA)
(was: SCM HA)
Key: RATIS-2296 (was: HDDS-13053)
Workflow: no-reopen-closed, patch-avail (was: patch-available, re-open
possible)
Project: Ratis (was: Apache Ozone)
> SCM and OM should not allow changing Raft group size to an even number
> ----------------------------------------------------------------------
>
> Key: RATIS-2296
> URL: https://issues.apache.org/jira/browse/RATIS-2296
> Project: Ratis
> Issue Type: Improvement
> Components: raft-group
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
>
> Setting the Raft group size to an even number for HA does not make sense. As
> an example, support group size is 4. It only can tolerate 1 failure, which
> is the same as group size 3. However, It is harder to get the majority
> comparing to group size 3 -- it requires 3 instead of 2.
> We should just fail it when setting a Raft group to an even number.
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