Tsz-wo Sze created RATIS-1930:
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Summary: Add a conf for enable/disable the setConf restriction
Key: RATIS-1930
URL: https://issues.apache.org/jira/browse/RATIS-1930
Project: Ratis
Issue Type: Improvement
Components: server
Reporter: Tsz-wo Sze
Assignee: Tsz-wo Sze
RATIS-1912 added a restriction on setConf for enforcing a safety property
(otherwise, the server group may end up in a no-leader state and cannot recover
by themselves). The restriction is to limit the number of servers being
added/replaced in a single setConf command.
This JIRA is to add a conf for enable/disable the setConf restriction since, in
some monitored environment, the safety property is not a problem. The monitor
(a human admin or a program) could intervene to fix the problem if it happens.
Disabling the restriction can improve performance. For example, change from
non-HA single server to a HA 3-server group can be done in a single setConf,
instead of 2 setConfs with the restriction.
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