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https://issues.apache.org/jira/browse/SOLR-1154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707885#action_12707885
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Noble Paul commented on SOLR-1154:
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replying to the mail http://markmail.org/message/52vj7lughfplxmks
it is still possible to achieve what you want to do by setting a different
solr.solr.home from the system property. when you package your war keep two
instance directories one for master and another for slave. pass different
solr.solr.home as command line param when you start the server
> allow specifying solr configuration file through system property to simplify
> deployment procedure in certain cases
> ------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-1154
> URL: https://issues.apache.org/jira/browse/SOLR-1154
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 1.4
> Reporter: Jianhan
> Priority: Minor
> Fix For: 1.4
>
> Attachments: SOLR-1154.patch
>
> Original Estimate: 5h
> Remaining Estimate: 5h
>
> Hi,
> I wanted to use this parameter to specify different solr configuration files
> for master and slave to simplify deployment procedure. Unfortunately, I can't
> dynamically replace the value of this parameter. Basically, what I want is
> <filter>
> <filter-name>SolrRequestFilter</filter-name>
> <filter-class>org.apache.solr.servlet.SolrDispatchFilter</filter-class>
> <init-param>
> <param-name>solrconfig-filename</param-name>
> <param-value>solrconfig-master.xml</param-value>
> </init-param>
> </filter>
> for master instance, and
> <filter>
> <filter-name>SolrRequestFilter</filter-name>
> <filter-class>org.apache.solr.servlet.SolrDispatchFilter</filter-class>
> <init-param>
> <param-name>solrconfig-filename</param-name>
> <param-value>solrconfig-slave.xml</param-value>
> </init-param>
> </filter>
> for slave instance.
> Ideally, if I can use system property for its value like in solrconfig.xml.
> For example,
> <filter>
> <filter-name>SolrRequestFilter</filter-name>
> <filter-class>org.apache.solr.servlet.SolrDispatchFilter</filter-class>
> <init-param>
> <param-name>solrconfig-filename</param-name>
> <param-value>${solr.config.filename: solrconfig.xml}</param-value>
> </init-param>
> </filter>
> but I learned that in general we can't use system property in web.xml.
> I realize that I can use replication of config file to achieve this, but I
> thought that creates unnecessary dependencies for slaves on master instance.
> So here is my proposal:
> make SolrDispatchFilter look up another init parameter, say
> 'solrconfig-filename-property', and its value is a system property name, and
> if this property is set, we get the file name, otherwise nothing happens (of
> course, if both exist, 'solrconfig-filename' takes precedence). This will
> give us maximum flexibility of specifying configuration files for different
> instances.
> Your thoughts?
> Thanks,
> Jianhan
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