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https://issues.apache.org/jira/browse/SOLR-8777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shalin Shekhar Mangar updated SOLR-8777:
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Attachment: SOLR-8777.patch
Here's a patch which waits for upto twice the session timeout for the ephemeral
node to go away before setting up overseer election and creating live node. If
the node doesn't go away, we raise an exception and bail out.
> Duplicate Solr process can cripple a running process
> ----------------------------------------------------
>
> Key: SOLR-8777
> URL: https://issues.apache.org/jira/browse/SOLR-8777
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 5.3.1
> Reporter: Shalin Shekhar Mangar
> Attachments: SOLR-8777.patch
>
>
> Thanks to [~mewmewball] for catching this one.
> Accidentally executing the same instance of Solr twice causes the second
> start instance to die with an "Address already in use", but not before
> deleting the first instance's live_node entry, emitting "Found a previous
> node that still exists while trying to register a new live node <node> -
> removing existing node to create another".
> The second start instance dies and its ephemeral node is then removed,
> causing /live_nodes/<node> to be empty since the first start instance's
> live_node was deleted by the second.
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