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https://issues.apache.org/jira/browse/SOLR-10479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16025011#comment-16025011
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ASF subversion and git services commented on SOLR-10479:
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Commit 3b527f8a395450e926bebc3de9146d2e39aa0972 in lucene-solr's branch
refs/heads/branch_6x from [~cpoerschke]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=3b527f8 ]
SOLR-10479: Adds support for
HttpShardHandlerFactory.loadBalancerRequests(MinimumAbsolute|MaximumFraction)
configuration. (Ramsey Haddad, Daniel Collins, Christine Poerschke)
> support
> HttpShardHandlerFactory.loadBalancerRequests(MinimumAbsolute|MaximumFraction)
> options
> ---------------------------------------------------------------------------------------------
>
> Key: SOLR-10479
> URL: https://issues.apache.org/jira/browse/SOLR-10479
> Project: Solr
> Issue Type: New Feature
> Reporter: Christine Poerschke
> Assignee: Christine Poerschke
> Priority: Minor
> Attachments: SOLR-10479.patch, SOLR-10479.patch
>
>
> If a request sends no {{timeAllowed}} threshold (or if it sends a very
> generous threshold) then that request can potentially be retried on 'very
> many' servers in the cloud.
> Via the
> {{HttpShardHandlerFactory.loadBalancerRequests(MinimumAbsolute|MaximumFraction)}}
> options the number of servers tried can be restricted via configuration e.g.
> {code}
> <shardHandlerFactory name="shardHandlerFactory"
> class="solr.HttpShardHandlerFactory">
> <int name="loadBalancerRequestsMinimumAbsolute">2</int>
> <float name="loadBalancerRequestsMaximumFraction">0.50</float>
> </shardHandlerFactory>
> {code}
> would on a six-replica-and-all-replicas-active collection/shard restrict
> sending to three replicas i.e. max(2, 0.50 x 6) and if the collection/shard
> temporarily becomes
> three-replicas-active-and-three-replicas-recovering-or-down then sending is
> restricted to two replicas i.e. max(2, 0.50 x 3) temporarily.
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