Quoting Ryan McKinley <[EMAIL PROTECTED]>:
The way we plan to use Solr together with a Content Management
System is that the authors/editors can create new article/document
types when needed, without any need to restart anything.
Do you really need to change the schema? Your CMS will transform from
blog software to invoice tracking to forum without restarting?
Well, it will not transform in that way :)
But new article/document types gets created every once in a while. And
the CMS in itself has no restart-requirements before they can be used.
The only limitation we have is that new or updated presentation jsp
pages needs to be transfered to the live server, and this is done by
the build (and that involves a tomcat restart). But sometimes we have
no need to add/update jsp files, but we still want to input content
based on new or updated article types, and index them, without
restarting. And we also want to be able to modify existing article
types, so that the fields gets indexed in a different way maybe, and
reindex all articles/documents while people still can do searches on
the site.
With
clever use of dynamic fields this should be possible too.
Is that true also for changes made on how a specific field should be
indexed? The wiki example is:
<dynamicField name="*_i" type="integer" indexed="true" stored="true"/>
What if we want to change this from stored="true" to stored="false" or
something similar, without renaming the field?
But I must say, that in general I consider type information in the
name to be ugly design. What if we have a number field myNumber that
we first define as an int (or sint, to use solr semantics), and we
call that myNumber_i in solr? If we later feel that we should change
this to be a slong, then we need to change the name of the field to
nyNumber_f.
Consider
changing the schema the same way you consider changing on for SQL --
you will likely change it and test for a while before deploying.
That said, the new MultiCore stuff in trunk allows you to reload a core
at runtime:
http://wiki.apache.org/solr/MultiCore#head-429a06cb83e1ce7b06857fd03c38d1200c4bcfc1
Ok, I'll look into that. Thanks.
correct, you only need to restart the solr webapp for all settings to
get reloaded.
Ok, thanks. The wiki was unclear on this one.
/Jimi
