The 'leaderUrl' parameter value is not in the 'shardWhitelist'

[Gell-Holleron, Daniel]

Hi there,

Running Solr version 8.9.0 on Windows Server 2019

I'm seeing errors in my log file where I get the following:

ReplicationHandler Index fetch failed :org.apache.solr.common.SolrException: 
The 'leadUrl' parameter value 
'http://solrserver:8983/solr/collection_shard3_replica_n4/' is not in the 
'shardsWhitelist'. Set -Dsolr.disable.shardsWhitelist=true to disable whitelist 
checks

In the solr.in.cmd file I've set the following parameter, so I'm confused as to 
why this is happening:

Set SOLR_OPTS=%SOLR_OPTS% -Dsolr.disable.shardsWhiteList=true

I even tried the following parameter but this also didn't work.

Set -Dsolr.disable.shardsWhiteList=true

Thanks,

Daniel