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From Jan Høydahl (JIRA) <>
Subject [jira] [Commented] (SOLR-8207) Modernise cloud tab on Admin UI
Date Wed, 01 Aug 2018 21:46:00 GMT


Jan Høydahl commented on SOLR-8207:

Starting on the RefGuide work for this patch.
 * I think there is consensus to rename "Cloud" tab as "Cluster". Shout out if we should wait
until later for this.
 ** I am not renaming the URL, e.g. it will continue to have the link [http://localhost:8983/solr/#/~cloud]
 ** Should we rename refguide file {{cloud-screens.adoc}} as well, or just give it a new
title "Cluster screens", and fix other places in the guide mentioning it by its old name?
 ** Are there instructions somewhere to produce the cluster state needed to replicate the
"Graph" and "Tree" screenshots now that the tab name changes?
 ** Now that we call the tab "Cluster", would it make more sense to move the "Cluster Suggestions"
tab (autoscaling) from top-level to a sub tab of "Cluster"?
 * Also consensus to remove the "Radial" graph. I'll remove that screenshot from the guide
and any other mention.

> Modernise cloud tab on Admin UI
> -------------------------------
>                 Key: SOLR-8207
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: Admin UI
>    Affects Versions: 5.3
>            Reporter: Upayavira
>            Assignee: Jan Høydahl
>            Priority: Major
>             Fix For: master (8.0), 7.5
>         Attachments: SOLR-8207-refguide.patch, node-compact.png, node-details.png, node-hostcolumn.png,
node-toggle-row-numdocs.png, nodes-tab-real.png, nodes-tab.png
>          Time Spent: 10m
>  Remaining Estimate: 0h
> 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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