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https://issues.apache.org/jira/browse/SLING-5435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ian Boston resolved SLING-5435.
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Resolution: Won't Fix
afaik no longer relevant.
> Decouple processes that depend on cluster leader elections from the cluster
> leader elections.
> ---------------------------------------------------------------------------------------------
>
> Key: SLING-5435
> URL: https://issues.apache.org/jira/browse/SLING-5435
> Project: Sling
> Issue Type: Improvement
> Components: General
> Reporter: Ian Boston
>
> Currently there are many processes in Sling that must complete before a Sling
> Discovery cluster leader election is declared complete. These processes
> include things like transferring all Jobs from the old leader to the new
> leader and waiting for the data to appear visible on the new leader. This
> introduces an additional overhead to the leader election process which
> introduces a higher than desirable timeout for elections and heartbeat. This
> higher than desirable timeout precludes the use of more efficient election
> and distributed consensus algorithms as implemented in Etcd, Zookeeper or
> implementations of RAFT.
> If the election could be declared complete leaving individual components to
> manage their own post election operations (ie decoupling those processes from
> the election), then faster election or alternative Discovery implementations
> such as the one implemented on etcd could be used.
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