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https://issues.apache.org/jira/browse/SOLR-4816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13763023#comment-13763023
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Mark Miller commented on SOLR-4816:
-----------------------------------
I'd like to commit this soon so I can more easily noodle around on top of it.
It should also make it easier to collaborate on any final tweaks or additions
without large dueling patches. I'll leave the issue open for a bit so anyone
else has a chance to weigh in.
> Add document routing to CloudSolrServer
> ---------------------------------------
>
> Key: SOLR-4816
> URL: https://issues.apache.org/jira/browse/SOLR-4816
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Affects Versions: 4.3
> Reporter: Joel Bernstein
> Assignee: Mark Miller
> Priority: Minor
> Fix For: 4.5, 5.0
>
> Attachments: SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch, SOLR-4816.patch,
> SOLR-4816.patch, SOLR-4816-sriesenberg.patch
>
>
> This issue adds the following enhancements to CloudSolrServer's update logic:
> 1) Document routing: Updates are routed directly to the correct shard leader
> eliminating document routing at the server.
> 2) Optional parallel update execution: Updates for each shard are executed in
> a separate thread so parallel indexing can occur across the cluster.
> These enhancements should allow for near linear scalability on indexing
> throughput.
> Usage:
> CloudSolrServer cloudClient = new CloudSolrServer(zkAddress);
> cloudClient.setParallelUpdates(true);
> SolrInputDocument doc1 = new SolrInputDocument();
> doc1.addField(id, "0");
> doc1.addField("a_t", "hello1");
> SolrInputDocument doc2 = new SolrInputDocument();
> doc2.addField(id, "2");
> doc2.addField("a_t", "hello2");
> UpdateRequest request = new UpdateRequest();
> request.add(doc1);
> request.add(doc2);
> request.setAction(AbstractUpdateRequest.ACTION.OPTIMIZE, false, false);
> NamedList response = cloudClient.request(request); // Returns a backwards
> compatible condensed response.
> //To get more detailed response down cast to RouteResponse:
> CloudSolrServer.RouteResponse rr = (CloudSolrServer.RouteResponse)response;
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