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https://issues.apache.org/jira/browse/SOLR-18130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18070413#comment-18070413
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Vladimir Vyatkin commented on SOLR-18130:
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I implements CloudSolrClient.Builder with universal connection string support
and replace it in SolrClientCache
WIP PR: [https://github.com/apache/solr/pull/4260]
I'm currently exploring the possibility of adding full support for both
connection types to solrj-streaming without breaking backward compatibility. It
should work with my changes for both connection types now, but all the
variables and parameters are called zkHost. I propose adding a second
parameter, "connectionString," and considering the possibility of also
specifying zkHost to maintain backward compatibility.
> CloudSolrStream should not depend on ZooKeeper
> ----------------------------------------------
>
> Key: SOLR-18130
> URL: https://issues.apache.org/jira/browse/SOLR-18130
> Project: Solr
> Issue Type: Improvement
> Components: SolrJ, streaming expressions
> Reporter: David Smiley
> Priority: Major
> Labels: newdev, pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In the SolrJ streaming expressions module, CloudSolrStream depends on
> ZooKeeper, and thus so does its subclasses (DrillStream, TopicStream,
> ShuffleStream, ParallelStream). It's a runtime dependency, triggered by a
> "zkHost" parameter that's supplied to {{SolrClientCache#getCloudSolrClient}}
> that uses {{CloudSolrClient.Builder}} that uses reflection to try to load
> {{ZkClientClusterStateProvider}}.
> I propose renaming these parameters in the module from zkHost to maybe
> "quorumHosts" that could either be list of Solr HTTP (when it starts with
> "http:" or "https:") or ZK if not. This should bring about a new
> well-deserved constructor to CloudSolrClient.Builder to parse a string, as
> it's not a matter specific to streaming expressions. This would be very
> convenient to callers I've seen elsewhere.
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