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https://issues.apache.org/jira/browse/SOLR-2312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149785#comment-13149785
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Mark Miller commented on SOLR-2312:
-----------------------------------
I'm not sure this happens anymore? In any case, you wouldn't want to use the
same instance for both searching and indexing until SOLR-2358 (Distributed
Indexing) is done. When that happens, it shouldn't matter what server you index
to, so the load balancing could make sense for both search and indexing. For
updates, we probably want to change CloudSolrServer to favor a shard leader,
rather than round-robin (at least optionally). That would seem to mean that the
solrj client would need to be able to do the hashing as well, so that it knows
what shard leader to send to. The simple case is easy though, and comes
naturally from the fact that updates will be forwarded to where they belong
from any node.
> CloudSolrServer -- calling add(Collection<SolrInputDocument> docs) throws NPE.
> ------------------------------------------------------------------------------
>
> Key: SOLR-2312
> URL: https://issues.apache.org/jira/browse/SOLR-2312
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.0
> Environment: Mac OSX v10.5.8
> java version "1.6.0_22"
> Java(TM) SE Runtime Environment (build 1.6.0_22-b04-307-9M3263)
> Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03-307, mixed mode)
> Reporter: Stan Burnitt
> Assignee: Mark Miller
> Priority: Critical
> Fix For: 4.0
>
>
> Cannot index documents using the CloudSolrServer.
> Below is a code snippet that reproduces the error.
> {code:borderStyle=solid}
> @Test
> public void jiraTestCase() {
> CloudSolrServer solrj = null;
>
> try {
> solrj = new
> CloudSolrServer("your.zookeeper.localdomain:2181");
> // Also tried creating CloudSolrServer using
> alternative contstuctor below...
> // public CloudSolrServer(String zkHost,
> LBHttpSolrServer lbServer)
> //
> // LBHttpSolrServer lbHttpSolrServer = new
> LBHttpSolrServer("http://solr.localdomain:8983/solr";);
> // solrj = new
> CloudSolrServer("your.zookeeper.localdomain:2181", lbHttpSolrServer);
> //
> // (Same result -- NPE @ line 105 in
> CloudSolrServer.java)
> solrj.setDefaultCollection("your-collection");
> solrj.setZkClientTimeout(5000);
> solrj.setZkConnectTimeout(5000);
> final Collection<SolrInputDocument> batch = new
> ArrayList<SolrInputDocument>();
> SolrInputDocument doc = new SolrInputDocument();
> doc.addField("id", 1L, 1.0f);
> doc.addField("title", "Document A");
> doc.addField("description", "Test document");
> batch.add(doc);
> doc = new SolrInputDocument();
> doc.addField("id", 2L, 1.0f);
> doc.addField("title", "Document B");
> doc.addField("description", "Another test
> document");
> batch.add(doc);
> solrj.add(batch);
> } catch (Exception e) {
> log.error(e.getMessage(), e);
> Assert.fail("java.lang.NullPointerException:
> null \n"
> + " at
> org.apache.solr.client.solrj.impl.CloudSolrServer.request(CloudSolrServer.java:105)
> \n"
> + " Line 105: NULL request object here
> --> String collection = request.getParams().get(\"collection\",
> defaultCollection);");
> } finally {
> solrj.close();
> }
> }
> {code}
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