[
https://issues.apache.org/jira/browse/SOLR-2809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120196#comment-13120196
]
Robert Muir commented on SOLR-2809:
-----------------------------------
{quote}
The retry would only be necessary in the infrequent case of a merge have
occurred.
{quote}
I don't know that this is always true: if we support distributed stats (idf
etc), then this assumption could break down in a lot of cases, because the
stats from the first phase don't make sense with regards to the documents being
scored in the second phrase.
with lucene's simple tf/idf there are probably less concerns, but if we are
going to go this route we should consider how this will affect other scoring
algorithms, especially ones that use 'global stats' for things like length
normalization (BM25's avg dl, DFR, etc) versus just query-term importance.
> searcher leases
> ---------------
>
> Key: SOLR-2809
> URL: https://issues.apache.org/jira/browse/SOLR-2809
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
>
> 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.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
