[jira] [Created] (SOLR-9014) Audit all usages of ClusterState methods which may make calls to ZK via the lazy collection reference

["Shalin Shekhar Mangar (JIRA)" <ji...@apache.org>]

Shalin Shekhar Mangar created SOLR-9014:
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             Summary: Audit all usages of ClusterState methods which may make calls to ZK via the lazy collection reference
                 Key: SOLR-9014
                 URL: https://issues.apache.org/jira/browse/SOLR-9014
             Project: Solr
          Issue Type: Improvement
          Components: SolrCloud
            Reporter: Shalin Shekhar Mangar
             Fix For: master, 6.1


ClusterState has a bunch of methods such as getSlice and getReplica which internally call getCollectionOrNull that ends up making a call to ZK via the lazy collection reference. Many classes use these methods even though a DocCollection object is available. In such cases, multiple redundant calls to ZooKeeper are made.

We should audit all usages of these methods and replace them with calls to appropriate DocCollection methods.



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