Erick Erickson created SOLR-13502:
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Summary: Investigate using something other than ZooKeeper's "4
letter words" for the admin UI status
Key: SOLR-13502
URL: https://issues.apache.org/jira/browse/SOLR-13502
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Erick Erickson
ZooKeeper 3.5.5 requires a whitelist of allowed "4 letter words". The only
place I see on a quick look at the Solr code where 4lws are used is in the
admin UI "ZK Status" link.
In order to use the admin UI "ZK Status" link, users will have to modify their
zoo.cfg file with
{code}
4lw.commands.whitelist=mntr,conf,ruok
{code}
This JIRA is to see if there are alternatives to using 4lw for the admin UI.
This depends on SOLR-8346. If we find an alternative, we need to remove the
additions to the ref guide that mention changing zoo.cfg (just scan for 4lw in
all the .adoc files) and remove SolrZkServer.ZK_WHITELIST_PROPERTY and all
references to it (SolrZkServer and SolrTestCaseJ4).
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