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https://issues.apache.org/jira/browse/SOLR-14630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18037789#comment-18037789
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David Smiley commented on SOLR-14630:
-------------------------------------
FWIW, I regret recommending the chosen solution. With the benefit of
hindsight, I think a request into Solr (the URL path, thus containing the
collection or alias) should represent the intended *scope* of the query.
Routing matters should be elsewhere (params or headers), or perhaps *also* in
the URL path. But not replacing the URL path.
> CloudSolrClient doesn't pick correct core when server contains more shards
> --------------------------------------------------------------------------
>
> Key: SOLR-14630
> URL: https://issues.apache.org/jira/browse/SOLR-14630
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud, SolrJ
> Affects Versions: 8.5.1, 8.5.2
> Reporter: Ivan Djurasevic
> Assignee: David Smiley
> Priority: Major
> Fix For: 9.3
>
> Attachments:
> 0001-SOLR-14630-Test-case-demonstrating-_route_-is-broken.patch
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Precondition: create collection with 4 shards on one server.
> During search and update, solr cloud client picks wrong core even _route_
> exists in query param. In BaseSolrClient class, method sendRequest,
>
> {code:java}
> sortedReplicas.forEach( replica -> {
> if (seenNodes.add(replica.getNodeName())) {
> theUrlList.add(ZkCoreNodeProps.getCoreUrl(replica.getBaseUrl(),
> joinedInputCollections));
> }
> });
> {code}
>
> Previous part of code adds base url(localhost:8983/solr/collection_name) to
> theUrlList, it doesn't create core address(localhost:8983/solr/core_name). If
> we change previous code to:
> {quote}
> {code:java}
> sortedReplicas.forEach(replica -> {
> if (seenNodes.add(replica.getNodeName())) {
> theUrlList.add(replica.getCoreUrl());
> }
> });{code}
> {quote}
> Solr cloud client picks core which is defined with _route_ parameter.
>
>
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