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https://issues.apache.org/jira/browse/SOLR-14114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jan Høydahl resolved SOLR-14114.
--------------------------------
    Fix Version/s: 8.5
       Resolution: Fixed

> Add WARN to Solr log that embedded ZK is not supported in production
> --------------------------------------------------------------------
>
>                 Key: SOLR-14114
>                 URL: https://issues.apache.org/jira/browse/SOLR-14114
>             Project: Solr
>          Issue Type: Improvement
>          Components: logging
>            Reporter: Jan Høydahl
>            Assignee: Jan Høydahl
>            Priority: Major
>             Fix For: 8.5
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> When Solr starts with embedded {{-DzkRun}} zookeeper, we currently log these 
> lines:
> {noformat}
> 2019-12-18 16:38:00.171 INFO  (main) [   ] o.a.s.c.SolrZkServerProps Reading 
> configuration from: /var/solr/data/zoo.cfg
> 2019-12-18 16:38:00.173 INFO  (main) [   ] o.a.s.c.SolrZkServer STARTING 
> EMBEDDED STANDALONE ZOOKEEPER SERVER at port 9983
> 2019-12-18 16:38:00.673 INFO  (main) [   ] o.a.s.c.ZkContainer Zookeeper 
> client=localhost:9983 {noformat}
> In addition we should log a WARN line about not using it in production
> {noformat}
> WARN (main) [ ] o.a.s.c.SolrZkServer Embedded Zookeeper is not supported in 
> production environments{noformat}
> This is already stated on the "[Taking Solr to 
> production|https://lucene.apache.org/solr/guide/8_3/taking-solr-to-production.html#going-to-production-with-solrcloud]";
>  RefGuide page. We should also add a more prominent WARNING box to RefGuide 
> about the same.



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