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From "Amrit Sarkar (JIRA)" <>
Subject [jira] [Commented] (SOLR-10147) Admin UI -> Cloud -> Graph: Impossible to see shard state
Date Tue, 21 Feb 2017 09:47:44 GMT


Amrit Sarkar commented on SOLR-10147:

Loved it. This makes much more sense. I tried to cook up a patch for the same and following
are the observations:

1. Getting leader replica 'bold' is apt, but we can stick to 'green' as it is more soothing
to the eyes to be honest.
PF screenshot-2 and screenshot-3
2. Double striking 'Gone' is making it difficult to read. If a node is gone, it should be
in readable format for the user to pay attention, with double strike it looked messy.
3. _italics_for 'Recovery' and 'Recovery failed' stands out.
PF screenshot-4
4. Striking 'inactive' both replicas and shard are apt. On screen, it is likeable.

I have uploaded a patch 'SOLR-10147-v1.patch' considering the following for now:
1. Bold for Leader, color still 'green'.
2. Line-through for Inactive nodes and shard (no matter what condition it is).
3. _italics_ for 'Recovery' and 'Recovery failed'.
3. Added Legend '-Inactive-'.

PF screenshot-5 and screenshot-6

Let me know your thoughts on this.

> Admin UI -> Cloud -> Graph: Impossible to see shard state
> ---------------------------------------------------------
>                 Key: SOLR-10147
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Admin UI
>            Reporter: Jan H√łydahl
>         Attachments: color_and_style.png, screenshot-1.png, screenshot-2.png, screenshot-3.png,
screenshot-4.png, screenshot-5.png, screenshot-6.png, SOLR-10147.patch, SOLR-10147.patch,
> Currently in the Cloud -> Graph view there is a legend with color codes, but that
is for replicas only.
> We need a way to quickly see the state of the shard, in particular if it is active or
inactive. For testing, create a collection, then call SPLITSHARD on shard1, and you'll end
up with shards {{shard1}}, {{shard1_0}} and {{shard1_1}}. It is not possible to see which
one is active or inactive.
> Also, the replicas belonging to the inactive shard are still marked with green "Active",
while in reality they are "Inactive".
> The simplest would be to add a new state "Inactive" with color e.g. blue, which would
be used on both shard and replica level. But since an inactive replica could also be "Gone"
or "Down", there should be some way to indicate both at the same time...

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