[SOLR-14114] Add WARN to Solr log that embedded ZK is not supported in production

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.5
• Component/s: logging
• Assignee: Jan Høydahl
• Reporter: Jan Høydahl
• Created: 18/Dec/19 18:08
• Updated: 24/Mar/20 12:46
• Resolved: 24/Feb/20 09:00

Description

When Solr starts with embedded -DzkRun zookeeper, we currently log these lines:

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 

In addition we should log a WARN line about not using it in production

WARN (main) [ ] o.a.s.c.SolrZkServer Embedded Zookeeper is not supported in production environments

This is already stated on the "Taking Solr to production" RefGuide page. We should also add a more prominent WARNING box to RefGuide about the same.

Issue Links

• links to: GitHub Pull Request #1273