[jira] [Commented] (SOLR-1970) need to customize location of dataimport.properties

["Erik Andersson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-1970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13493328#comment-13493328 ] 

Erik Andersson commented on SOLR-1970:
--------------------------------------

We just solved this issue by not using ${dataimporter.last_index_time} for delta-imports. Instead we store the 'last_index_time' (one for each core) in a DB table and use a sub-query to pull it out.

SELECT
   ...
WHERE
   date_modified > (SELECT `value` FROM `meta` WHERE `key`='solr.dataimporter.last_index_time')

We run delta imports from a script so we can simply update the 'last_index_time' in that process (add a sleep() to make sure delta kicks in before the 'last_index_time' is updated). I'm sure there are better solutions that could trigger the update within Solr.
                
> need to customize location of dataimport.properties
> ---------------------------------------------------
>
>                 Key: SOLR-1970
>                 URL: https://issues.apache.org/jira/browse/SOLR-1970
>             Project: Solr
>          Issue Type: Improvement
>          Components: contrib - DataImportHandler
>    Affects Versions: 1.4
>            Reporter: Chris Book
>
> By default dataimport.properties is written to {solr.home}/conf/.  However when using multiple solr cores, it is currently useful to use the same conf directory for all of the cores and use solr.xml to specify a different schema.xml.  I can then specify a different data-config.xml for each core to define how the data gets from the database to each core's shema.
> However, all the solr cores will fight over writing to the dataimport.properties file.  There should be an option in solrconfig.xml to specify the location or name of this file so that a different one can be used for each core.

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