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https://issues.apache.org/jira/browse/SOLR-12692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16592405#comment-16592405
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Varun Thacker commented on SOLR-12692:
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Newly adding validations added in this patch
* Show a warning when 80% of file descriptor is being used
* Show a warning when 80% of connections is being used
* data size is displayed in human readable form
* Show a warning when only 1 ZK host is provided
* Show a warning if max latency is more than 10 seconds
> Add hints/warnings for the ZK Status Admin UI
> ---------------------------------------------
>
> Key: SOLR-12692
> URL: https://issues.apache.org/jira/browse/SOLR-12692
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Admin UI
> Reporter: Varun Thacker
> Priority: Minor
> Attachments: SOLR-12692.patch, wrong_zk_warning.png, zk_ensemble.png
>
>
> Firstly I love the new UI pages ( ZK Status and Nodes ) . Thanks [~janhoy]
> for all the great work!
> I setup a 3 node ZK ensemble to play around with the UI and attaching the
> screenshot for reference.
>
> Here are a few suggestions I had
> # Let’s show Approximate Size in human readable form. We can use
> RamUsageEstimator#humanReadableUnits to calculate it
> # Show warning symbol when Ensemble is standalone
> # If maxSessionTimeout < Solr's ZK_CLIENT_TIMEOUT then ZK will only honor
> up-to the maxSessionTimeout value for the Solr->ZK connection. We could mark
> that as a warning.
> # If maxClientCnxns < live_nodes show this as a red? Each solr node connects
> to all zk nodes so if the number of nodes in the cluster is high one should
> also be increasing maxClientCnxns
>
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