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https://issues.apache.org/jira/browse/SOLR-11542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16224209#comment-16224209
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Hoss Man commented on SOLR-11542:
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some confusion from the peanut gallery...
Can you elaborate a bit on why you see changes to DUP neccessary to support
time based partitioning as opposed to a new DocRouter? I see you initially
explored this idea in SOLR-9690 but abandoned that appraoch -- can you explain
how do you see the concerns/problems being easier to deal with via features in
DUP?
(ie: needing to fail if a doc uses a Timestamp that doesn't match an existing
is going to be a problem regardless of what bit of code maps timestamps to
shard names)
My naive assumption is that all the problematic edge cases will still be
problematic edge cases, but that a new DocRouter makes the most conceptual
sense and should require the least amount of (new) spaghetti code -- not to
mention it would in theory be more performant since it would allow
CloudSolrClient to route documents directly to the correct shard.
In any event: I'm confused as to what caused you to make the leap from "new
DocRouter" to "Helper class for DUP" -- if you could walk folks through that
thought process it might be helpful to others besides myself.
> Add feature to DistributedURP to route time partitioned collections
> -------------------------------------------------------------------
>
> Key: SOLR-11542
> URL: https://issues.apache.org/jira/browse/SOLR-11542
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Reporter: David Smiley
> Fix For: 7.2
>
>
> Assuming we have some time partitioning metadata on an alias (see SOLR-11487
> for the metadata facility), we'll then need to route documents to the right
> collection. I tentatively propose a helper class to DistributedURP to do
> this. Perhaps a separate URP is plausible, though it will take some
> modifications to DistributedURP.
> The scope of this issue is:
> * decide on some alias metadata names & semantics
> * decide the collection suffix pattern. Read/write code (needed to route).
> * the routing code
> No new partition creation nor deletion happens is this issue.
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