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From "Timothy Potter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7332) Seed version buckets with max version from index
Date Wed, 01 Apr 2015 23:19:52 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14391729#comment-14391729
] 

Timothy Potter commented on SOLR-7332:
--------------------------------------

[~yonik@apache.org] for the first issue, I'm curious if you think trying to initialize the
buckets during core initialization (after there is a searcher but before updates are accepted)
is the way to go? That was my first thought, but maybe it would be better to invoke the initialization
from the {{DistributedUpdateProcessor#versionAdd}} method, which is where it is needed. The
incoming update will block until the query returns, but that should only be once. Of course
that would add a synchronization point for every doc, which isn't ideal either.

> Seed version buckets with max version from index
> ------------------------------------------------
>
>                 Key: SOLR-7332
>                 URL: https://issues.apache.org/jira/browse/SOLR-7332
>             Project: Solr
>          Issue Type: Sub-task
>          Components: SolrCloud
>            Reporter: Timothy Potter
>            Assignee: Timothy Potter
>         Attachments: SOLR-7332.patch
>
>
> See full discussion with Yonik and I in SOLR-6816.
> The TL;DR of that discussion is that we should initialize highest for each version bucket
to the MAX value of the {{__version__}} field in the index as early as possible, such as after
the first soft- or hard- commit. This will ensure that bulk adds where the docs don't exist
avoid an unnecessary lookup for a non-existent document in the index.



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