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Posted to dev@lucene.apache.org by "Steve Rowe (JIRA)" <ji...@apache.org> on 2013/03/14 21:30:12 UTC
[jira] [Commented] (SOLR-4311) Luke and Core admin ajax requests
shouldn't be cached in admin
[ https://issues.apache.org/jira/browse/SOLR-4311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13602680#comment-13602680 ]
Steve Rowe commented on SOLR-4311:
----------------------------------
+1
bq. That does actually already work – just wanted to confirm it's okay introducing this, since it's (from my pov) "core-level"-information" and i'm using it here on the "top-level"
Well, the specification version is static metadata drawn from the solr-core jar; there's no dependency on any running SolrCore. So I think it's fine.
> Luke and Core admin ajax requests shouldn't be cached in admin
> --------------------------------------------------------------
>
> Key: SOLR-4311
> URL: https://issues.apache.org/jira/browse/SOLR-4311
> Project: Solr
> Issue Type: Bug
> Components: web gui
> Affects Versions: 4.0
> Reporter: Chris Bleakley
> Assignee: Stefan Matheis (steffkes)
> Fix For: 4.3
>
> Attachments: SOLR-4311.patch
>
>
> Although both the luke and core admin handlers set http caching to false in the response headers** I believe the Cache-Control settings are ignored during ajax requests in certain browsers. This can be a problem if you're refreshing admin to get the latest do count. It can also be a problem when you compare the count of "Num Docs" on the main index page (/solr/#/CORE) vs the count on the core admin page (/solr/#/~cores/CORE). Consider that if you first visit the main index page, add and commit 100 docs, and then visit core admin the doc count will be off by 100.
>
> If this is an issue the ajax requests can explictly set caching to false ( http://api.jquery.com/jQuery.ajax/#jQuery-ajax-settings ) ... for example, inserting 'cache: false,' after line 91 here: https://github.com/apache/lucene-solr/blob/branch_4x/solr/webapp/web/js/scripts/dashboard.js#L91
>
> ** https://github.com/apache/lucene-solr/blob/branch_4x/solr/core/src/java/org/apache/solr/handler/admin/LukeRequestHandler.java#L167
> ** https://github.com/apache/lucene-solr/blob/branch_4x/solr/core/src/java/org/apache/solr/handler/admin/CoreAdminHandler.java#L216
>
> Tested using Chrome Version 24.0.1312.52
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