Is it possible to secure communication between Solr(8.3.1) and Zookeeper
(3.5.5)?

We have followed the guide
https://cwiki.apache.org/confluence/display/ZOOKEEPER/ZooKeeper+SSL+User
+Guide

When we try the below command it hangs and fails to connect to zookeeper.

solr/server/scripts/cloud-scripts$ ./zkcli.sh -zkhost localhost:2281 -cmd
ls
INFO  - 2020-03-12 14:08:41.438;
org.apache.solr.common.cloud.ConnectionManager; Waiting for client to
connect to ZooKeeper

In the zookeeper logs we can see the following error:

io.netty.handler.codec.DecoderException:
io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record

Kirk Fitzsimons

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