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https://issues.apache.org/jira/browse/SOLR-11487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206546#comment-16206546
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David Smiley commented on SOLR-11487:
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Thanks for sharing your idea [~gus_heck]. This is an approach I didn't think
of. I'm concerned this is over-using ZooKeeper nodes for what could be a
simple map instead. It's not like the metadata on the collection (as
associated with the alias) is going to change so often as to benefit from the
ability to change some but not all of this metadata. [~noble.paul] what do you
think of this?
> Collection Alias metadata for time partitioned collections
> ----------------------------------------------------------
>
> Key: SOLR-11487
> URL: https://issues.apache.org/jira/browse/SOLR-11487
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Reporter: David Smiley
> Attachments: SOLR_11487.patch
>
>
> SOLR-11299 outlines an approach to using a collection Alias to refer to a
> series of collections of a time series. We'll need to store some metadata
> about these time series collections, such as which field of the document
> contains the timestamp to route on.
> The current {{/aliases.json}} is a Map with a key {{collection}} which is in
> turn a Map of alias name strings to a comma delimited list of the collections.
> _If we change the comma delimited list to be another Map to hold the existing
> list and more stuff, older CloudSolrClient (configured to talk to ZooKeeper)
> will break_. Although if it's configured with an HTTP Solr URL then it would
> not break. There's also some read/write hassle to worry about -- we may need
> to continue to read an aliases.json in the older format.
> Alternatively, we could add a new map entry to aliases.json, say,
> {{collection_metadata}} keyed by alias name?
> Perhaps another very different approach is to attach metadata to the
> configset in use?
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