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https://issues.apache.org/jira/browse/SOLR-14999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Houston Putman resolved SOLR-14999.
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Fix Version/s: 8.8
Resolution: Fixed
> Add built-in option to advertise Solr with a different port than Jetty
> listens on.
> ----------------------------------------------------------------------------------
>
> Key: SOLR-14999
> URL: https://issues.apache.org/jira/browse/SOLR-14999
> Project: Solr
> Issue Type: Improvement
> Reporter: Houston Putman
> Assignee: Houston Putman
> Priority: Major
> Fix For: 8.8
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Currently the default settings in {{solr.xml}} allow the specification of one
> port, {{jetty.port}} which the bin/solr script provides from the
> {{SOLR_PORT}} environment variable. This port is used twice. Jetty uses it to
> listen for requests, and the clusterState uses the port to advertise the
> address of the Solr Node.
> In cloud environments, it's sometimes crucial to be able to listen on one
> port and advertise yourself as listening on another. This is because there is
> a proxy that listens on the advertised port, and forwards the request to the
> server which is listening to the jetty port.
> Solr already supports having a separate Jetty port and Live Nodes port
> (examples provided in the dev-list discussion linked below). I suggest that
> we add this to the default solr config so that users can use the default
> solr.xml in cloud configurations, and the solr/bin script will enable easy
> use of this feature.
> There has been [discussion on this exact
> problem|https://mail-archives.apache.org/mod_mbox/lucene-dev/201910.mbox/%3CCABEwPvGFEggt9Htn%3DA5%3DtoawuimSJ%2BZcz0FvsaYod7v%2B4wHKog%40mail.gmail.com%3E]
> on the dev list already.
> I propose the new system property to be used for {{hostPort}} in the
> solr.xml. I am open to changing the name, but to me it is more descriptive
> than {{hostPort}}.
> {{-Dsolr.port.advertise}} and {{SOLR_PORT_ADVERTISE}} (env var checked in
> bin/solr).
> The xml field {{<hostPort>}} would not be changed however, just the system
> property that is used to fill the value in the default {{solr.xml}}.
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