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https://issues.apache.org/jira/browse/SOLR-16891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17906836#comment-17906836
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David Smiley commented on SOLR-16891:
-------------------------------------
I liked this mostly except for one detail – MapWriter implementing
org.noggit.JSONWriter.Writable. Lots of classes implement MapWriter. Thanks
to MapWriter, there are many methods brought in there. And this new one will
be used by nobody except for Noggit. This is a really minor point; there are
many methods and this is just one and is harmless except for maybe
organizational sensibilities / complexity.
As Solr nowadays wholly owns Noggit, we can have Noggit understand Solr's
MapWriter. But, Noggit has no dependencies so it'd also feel wrong to add one
to Solr, albeit there's nothing to it (it's all in the same source path) so
it's completely consequence-less. Shrug.
> Solr Cloud Graph screen blank
> -----------------------------
>
> Key: SOLR-16891
> URL: https://issues.apache.org/jira/browse/SOLR-16891
> Project: Solr
> Issue Type: Bug
> Components: Admin UI
> Affects Versions: 9.3
> Reporter: Houston Putman
> Assignee: Houston Putman
> Priority: Blocker
> Fix For: 9.3
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> The Solr Admin UI - Cloud - Graph screen is blank. This was not an issue in
> Solr 9.2.1, so an API must have changed to make this no longer work.
> After some investigation, the screen uses the Zookeeper API to look at
> {{{}clusterstate.json{}}}, so there must have been some back-compat logic in
> the Zookeeper API to make that work given that {{clusterstate.json}} no
> longer exists. This may no longer work.
> As an easy fix, we can just move to using the Collections ClusterStatus API
> which returns the same data that used to exist in the
> {{{}clusterstate.json{}}}, so we don't even need to map fields or anything.
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