andyvuong opened a new pull request #1317: SOLR-13101: Create metadataSuffix 
znode only at common shard creating api calls
URL: https://github.com/apache/lucene-solr/pull/1317
 
 
   Shared collections make use of something called the metadataSuffix znode per 
shard in ZooKeeper to understand what core.metadata file to pull from blob 
store and hydrate a replica with the most up-to-date and correct index data. 
Shared collections would create the node on-demand with a default value (e.g. 
indexing) but this is not correct behavior when considering restore operations 
in the future. We'll want to create the node with a non-default value down the 
line. 
   
   This change initiates the node when we create the shard in common collection 
API commands and includes CREATE, CREATESHARD, SPLITSHARD. Other operations 
such as RESTORE are not currently supported by solr shared storage so are not 
in scope of this change. 

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