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https://issues.apache.org/jira/browse/SOLR-844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12651742#action_12651742
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noble.paul edited comment on SOLR-844 at 11/29/08 8:50 PM:
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A simple round-robin based implementtaion. Keeps two lists of servers live and
dead. If a request to a server fails it is added to the list of dead servers.
Periodically (once in a minute) the dead servers are pinged to find if they are
up again. The ping is done in a thread which makes a normal request. A thread
checks only one server
Needs another ConfigLBHttpSolrServer which can be driven from a config file
(local/http)
was (Author: noble.paul):
A simple round-robin based implementtaion. Keeps two lists of servers live
and dead. If a request to a server fails it is added to the list of dead
servers.
Periodically (one in a minute) the dead servers are pinged to find if they are
up again. The ping is done in a thread which makes a normal request. A thread
checks only one server
Needs another ConfigLBHttpSolrServer which can be driven from a config file
(local/http)
> A SolrServer impl to front-end multiple urls
> --------------------------------------------
>
> Key: SOLR-844
> URL: https://issues.apache.org/jira/browse/SOLR-844
> Project: Solr
> Issue Type: New Feature
> Components: clients - java
> Affects Versions: 1.3
> Reporter: Noble Paul
> Fix For: 1.4
>
> Attachments: SOLR-844.patch, SOLR-844.patch
>
>
> Currently a {{CommonsHttpSolrServer}} can talk to only one server. This
> demands that the user have a LoadBalancer or do the roundrobin on their own.
> We must have a {{LBHttpSolrServer}} which must automatically do a
> Loadbalancing between multiple hosts. This can be backed by the
> {{CommonsHttpSolrServer}}
> This can have the following other features
> * Automatic failover
> * Optionally take in a file /url containing the the urls of servers so that
> the server list can be automatically updated by periodically loading the
> config
> * Support for adding removing servers during runtime
> * Pluggable Loadbalancing mechanism. (round-robin, weighted round-robin,
> random etc)
> * Pluggable Failover mechanisms
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