Article - CS332970
"Could not execute ruok towards ZK host" is reported in Solr Status page when Solr Cloud is installed
Modified: 03-Nov-2020
Applies To
- Windchill PDMLink 11.0 to 12.0
Description
- After following up official document to install Zookeeper and Solr nodes, all the Zookeeper and Solr applications could be started correctly. And Windchill could index and search its data by using the applications. But following error is reported in Cloud > ZK Status page after installing Windchill Index Search in Cloud mode:
Errors:
Could not execute ruok towards ZK host xxxxxxxxxxxx.xxxxx.xxx:12181. Add this line to the 'zoo.cfg' configuration file on each zookeeper node: '4lw.commands.whitelist=mntr,conf,ruok'. See also chapter 'Setting Up an External ZooKeeper Ensemble' in the Solr Reference Guide.
Could not execute ruok towards ZK host xxxxxxxxxxxx.xxxxx.xxx:12182. Add this line to the 'zoo.cfg' configuration file on each zookeeper node: '4lw.commands.whitelist=mntr,conf,ruok'. See also chapter 'Setting Up an External ZooKeeper Ensemble' in the Solr Reference Guide.
Could not execute ruok towards ZK host xxxxxxxxxxxx.xxxxx.xxx:12183. Add this line to the 'zoo.cfg' configuration file on each zookeeper node: '4lw.commands.whitelist=mntr,conf,ruok'. See also chapter 'Setting Up an External ZooKeeper Ensemble' in the Solr Reference Guide.
Could not execute ruok towards ZK host xxxxxxxxxxxx.xxxxx.xxx:12181. Add this line to the 'zoo.cfg' configuration file on each zookeeper node: '4lw.commands.whitelist=mntr,conf,ruok'. See also chapter 'Setting Up an External ZooKeeper Ensemble' in the Solr Reference Guide.
Could not execute ruok towards ZK host xxxxxxxxxxxx.xxxxx.xxx:12182. Add this line to the 'zoo.cfg' configuration file on each zookeeper node: '4lw.commands.whitelist=mntr,conf,ruok'. See also chapter 'Setting Up an External ZooKeeper Ensemble' in the Solr Reference Guide.
Could not execute ruok towards ZK host xxxxxxxxxxxx.xxxxx.xxx:12183. Add this line to the 'zoo.cfg' configuration file on each zookeeper node: '4lw.commands.whitelist=mntr,conf,ruok'. See also chapter 'Setting Up an External ZooKeeper Ensemble' in the Solr Reference Guide.
- ok values in ZK Status table are all false. If follow up the error message to add 4lw.commands.whitelist=mntr,conf,ruok to zoo.cfg, after starting Zookeeper it shows For input string: "null" when accessing ZK Status page.
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