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https://issues.apache.org/jira/browse/SOLR-527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591678#action_12591678
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timmsc edited comment on SOLR-527 at 6/27/08 6:48 AM:
---------------------------------------------------------

I serendipitously discovered what is probably the cleanest way to only allow 
commits on the slave.  If the index is owned by user A with permissions 
{noformat}"-rw-r--r--"{noformat} yet the slave solr process is run as user B, 
only read operations are allowed.  This is obvious in retrospect.  I just 
didn't think of it.

      was (Author: timmsc):
    I serendipitously discovered what is probably the cleanest way to only 
allow commits on the slave.  If the index is owned by user A with permissions 
"-rw-r--r--" yet the slave solr process is run as user B, only read operations 
are allowed.  This is obvious in retrospect.  I just didn't think of it.
  
> An XML commit only request handler
> ----------------------------------
>
>                 Key: SOLR-527
>                 URL: https://issues.apache.org/jira/browse/SOLR-527
>             Project: Solr
>          Issue Type: New Feature
>          Components: update
>    Affects Versions: 1.3
>            Reporter: Sean Timm
>            Priority: Trivial
>         Attachments: ReadOnlyUpdateProcessorFactory.java, 
> ReadOnlyUpdateProcessorFactory.java, SOLR-527.patch
>
>
> This request handler only permits <commit/> messages.  It is provided as one 
> way to prevent adds and deletes on a Solr slave machine that could 
> potentially be accessed by outside parties where a firewall or other access 
> control is either not possible or not desired.

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