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https://issues.apache.org/jira/browse/SOLR-2809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated SOLR-2809:
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Attachment: SOLR-2809.patch
OK, here's a proof-of-concept lease manager that implements the core
functionality. It's nice and small since it just uses the existing searcher
management code.
The remaining work would be integration & HTTP-API:
- SolrCore would have a LeaseManager
- if a lease key is passed in, look up the searcher in the lease manager rather
than getting the most recently registered searcher
- at the end of a request, do the lease if requested, and return the lease key
to the client
> searcher leases
> ---------------
>
> Key: SOLR-2809
> URL: https://issues.apache.org/jira/browse/SOLR-2809
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
> Attachments: SOLR-2809.patch
>
>
> Leases/reservations on searcher instances would give us the ability to use
> the same searcher across phases of a distributed search, or for clients to
> send multiple requests and have them hit a consistent/unchanging view of the
> index. The latter requires something extra to ensure that the load balancer
> contacts the same replicas as before.
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