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From "Scott Blum (JIRA)" <>
Subject [jira] [Commented] (SOLR-8777) Duplicate Solr process can cripple a running process
Date Thu, 03 Mar 2016 01:07:18 GMT


Scott Blum commented on SOLR-8777:

Oh yuck, looks like jetty controls the ordering, and doesn't bind the port until after all
the ServletFilters are initialized, which is what ultimately starts up ZkController.

> Duplicate Solr process can cripple a running process
> ----------------------------------------------------
>                 Key: SOLR-8777
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>    Affects Versions: 5.3.1
>            Reporter: Shalin Shekhar Mangar
> 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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