Upayavira created SOLR-8207:
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Summary: Modernise cloud tab on Admin UI
Key: SOLR-8207
URL: https://issues.apache.org/jira/browse/SOLR-8207
Project: Solr
Issue Type: Improvement
Components: web gui
Affects Versions: 5.3
Reporter: Upayavira
Assignee: Upayavira
The various sub-tabs of the "Cloud tab" were designed before anyone was making
real use of SolrCloud, and when we didn't really know the use-cases we would
need to support. I would argue that, whilst they are pretty (and clever) they
aren't really fit for purpose (with the exception of tree view).
Issues:
* Radial view doesn't scale beyond a small number of nodes/collections
* Paging on the graph view is based on collections - so a collection with many
replicas won't be subject to pagination
* The Dump feature is kinda redundant and should be removed
* There is now a major overlap in functionality with the new Collections tab
What I'd propose is that we:
* promote the tree tab to top level
* remove the graph views and the dump tab
* add a new Nodes tab
This nodes tab would complement the collections tab - showing nodes, and their
associated replicas/collections. From this view, it would be possible to
add/remove replicas and to see the status of nodes. It would also be possible
to filter nodes by status: "show me only up nodes", "show me nodes that are in
trouble", "show me nodes that have leaders on them", etc.
Presumably, if we have APIs to support it, we might have a "decommission node"
option, that would ensure that no replicas on this node are leaders, and then
remove all replicas from the node, ready for it to be removed from the cluster.
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