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https://issues.apache.org/jira/browse/JAMES-3147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoit Tellier closed JAMES-3147.
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Resolution: Fixed
> Group localDomain calls for RecipientIsLocal
> --------------------------------------------
>
> Key: JAMES-3147
> URL: https://issues.apache.org/jira/browse/JAMES-3147
> Project: James Server
> Issue Type: New Feature
> Components: Mailet Contributions
> Affects Versions: 3.5.0
> Reporter: Benoit Tellier
> Priority: Major
> Labels: perf
> Fix For: 3.6.0
>
>
> When a mail is processed, very often recipients shares the same domain.
> To check if a recipient is local we start a lookup to check its domain is
> local then lookup its user. And this for each recipient.
> Obviously we can group recipient by domains in order to do the check only
> once.
> Similary calls can also be groups by domains upon RRT processing and in
> HostIsLocal.
> This is an interesting area of improvment as glowroot profiling session
> showed Cassandra GET domain request was by far the most time consumming
> request with a cumulated time of 76 seconds and 38 thousands calls.
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