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Posted to dev@lucene.apache.org by "Alexandre Rafalovitch (JIRA)" <ji...@apache.org> on 2016/11/06 04:25:58 UTC
[jira] [Updated] (SOLR-3318) LBHttpSolrClient should allow to
specify a preferred server for a query
[ https://issues.apache.org/jira/browse/SOLR-3318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexandre Rafalovitch updated SOLR-3318:
----------------------------------------
Affects Version/s: (was: 4.0-ALPHA)
6.3
Summary: LBHttpSolrClient should allow to specify a preferred server for a query (was: LBHttpSolrServer should allow to specify a preferred server for a query)
> LBHttpSolrClient should allow to specify a preferred server for a query
> -----------------------------------------------------------------------
>
> Key: SOLR-3318
> URL: https://issues.apache.org/jira/browse/SOLR-3318
> Project: Solr
> Issue Type: Improvement
> Components: clients - java
> Affects Versions: 6.3
> Reporter: Martin Grotzke
> Priority: Minor
> Attachments: SOLR-3318.git.patch
>
>
> For a user query we make several solr queries that differ only slightly and therefore should use/reuse objects cached from the first query (we're using a custom request handler and custom caches).
> Thus such subsequent queries should hit the same solr server.
> The implemented solution looks like this:
> * The client obtains a live SolrServer from LBHttpSolrServer
> * The client provides this SolrServer as preferred server for a query
> * If the preferred server is no longer alive the request is retried on another live server
> * Everything else follows the existing logic:
> ** After live servers are exhausted, any servers previously marked as dead will be tried before failing the request
> ** If no live servers are found a SolrServerException is thrown
> The implementation is also [on github|https://github.com/magro/lucene-solr/commit/a75aef3d].
> Mailing list thread: http://lucene.472066.n3.nabble.com/LBHttpSolrServer-to-query-a-preferred-server-tt3884140.html
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