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https://issues.apache.org/jira/browse/SOLR-566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13167704#comment-13167704
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Hoss Man commented on SOLR-566:
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Luca: making CheckIndex work off a specified commit point sounds like a great
idea -- although i think (particularly in the case of your CheckIndexhandler)
there would need to be some sanity checking and clear error messages if that
commit point gets deleted in the middle of the CheckIndex.
I think an async operation is the way to go -- check index is something you
want to see work even if the index is really large and it takes a long time --
but i don't have a silver bullet suggestion for how to do it. You could
follow the model DIH currently uses, where you specify a "command" to run, an
then on subsequent calls you can ask for the "status" of the most recently run
command (and if i remember correctly: attempts to have it run a command while
one is already in progress return info that a command is already running and
you have to wait).
Alternately you could go with a "ticket" type system, where you can either ask
it to "run" and it immediately returns an id that you can later use to ask for
status about that run -- which would allow multiple concurrent runs with
independent result status info ... but i'm not sure if that's important for
CheckIndex (would have definitely been nice for DIH though). The one potential
problem there s where you maintain that status state (ram? disk?), and how long
you keep it (ie: what frees the ram or removes the data from disk?)
I would go with whatever seems simplest, and we can think about refactoring as
needed.
> Incorporate Lucene's CheckIndex tool into Solr
> ----------------------------------------------
>
> Key: SOLR-566
> URL: https://issues.apache.org/jira/browse/SOLR-566
> Project: Solr
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
>
> Not sure how to just yet, but I think it would be good to somehow incorporate
> Lucene's CheckIndex tool into Solr. I imagine it can be done nicely through
> the admin, but I suspect it makes sense to also do it on startup or even as a
> request handler.
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