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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (SOLR-1698) load balanced distributed search
Date Tue, 05 Jan 2010 17:14:54 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796760#action_12796760
] 

Yonik Seeley edited comment on SOLR-1698 at 1/5/10 5:13 PM:
------------------------------------------------------------

Another big question is: can we use LBHttpSolrServer for this, or are the needs too different?

Some of the issues:
 - need control over order (so same server will be used in a single request)
 - if we have a big cluster (100 shards), we don't want every node or every core to have 100
background threads checking liveness
 - one request may want to hit addresses [A,B] while another may want [A,B,C] - a single LBHttpSolrServer
can't currently do both at once, and separate instances wouldn't share liveness info.

One way: have many LBHttpSolrServer instances (one per shard group) but have them share certain
things like the liveness of a shard and the background cleaning threads

Another way: have a single static LBHttpSolrServer instance that's shared for all requests,
with an extra method that allows passing of a list of addresses on a per-request basis.



      was (Author: yseeley@gmail.com):
    Another big question is: can we use LBHttpSolrServer for this, or are the needs too different?
  
> load balanced distributed search
> --------------------------------
>
>                 Key: SOLR-1698
>                 URL: https://issues.apache.org/jira/browse/SOLR-1698
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Yonik Seeley
>
> Provide syntax and implementation of load-balancing across shard replicas.

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