[jira] [Commented] (SOLR-9714) Ability to configure STOP_PORT

["Jan Høydahl (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-9714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15632276#comment-15632276 ] 

Jan Høydahl commented on SOLR-9714:
-----------------------------------

Solr currently occupies three (four) ports on startup:
* SOLR_PORT
* STOP_PORT=SOLR_PORT-1000 (jetty stop port)
* RMI_PORT=SOLR_PORT+10000 (jmx)
* zkRun port=SOLR_PORT+1000 (if started with -c without -z)

Today you can (not documented) customize STOP_PORT when starting Solr, but not when stopping.
RMI_PORT and STOP_KEY is already configurable in solr.in or env.vars, while zkRun port is not configurable.

I propose the addition of {{SOLR_STOP_PORT}} in solr.in scripts and document it.
At the same time the {{install_solr_service}} script could get options for {{-j <jmx rmi port>}}, {{-t <stop port>}}, {{-k <stop key>}}, but perhaps instead of inventing a install-script option for every thinkable variable, we should let people supply a solr.in file {{-c <solr.in config file>}}?

Another related issue is that if you try to stop Solr with an incorrect STOP_PORT or an incorrect STOP_KEY, i.e. {{solr stop -k foo -p 8983}} then the controlled stop through stop port/key fails, but then the process is still forcefully killed after some seconds. Should we not instead exit with message "invalid stop port/key given". Is not the purpose of the secret stop key to prevent people from stopping the process without the proper key? Also, the {{-k <key>}} parameter is only documented for {{stop}}, but it exists for {{start}} as well.



> Ability to configure STOP_PORT
> ------------------------------
>
>                 Key: SOLR-9714
>                 URL: https://issues.apache.org/jira/browse/SOLR-9714
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: SolrCloud
>    Affects Versions: 5.5.3, 6.2.1
>            Reporter: 胡晓东
>            Priority: Minor
>         Attachments: SOLR-9714.patch
>
>
> Our system just has port planning,we have the requirement to configure what to use as stop port explicitly. but now I can configure the stop_port on the starting script($SOLR_HOME/bin/solr), but can not use the port to stop solr gracefully. I think the script has a little problem.



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