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https://issues.apache.org/jira/browse/SOLR-12927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16685305#comment-16685305
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Cassandra Targett commented on SOLR-12927:
------------------------------------------
[~steve_rowe], in the upgrade notes I just committed, I added something about
the new ByteBuffersDirectoryFactory to the upgrade notes, since it was
mentioned in the CHANGES.txt upgrade notes but I thought it needed a bit more
explanation. Would you give it a once-over? Feel free to just fix anything you
think should be rephrased.
(I just noticed I used {{ByteBuffersDirectory}} and not
{{ByteBuffersDirectoryFactory}}, so I'll fix that mistake now.)
Here's the section for your convenience (with the correction I'm about to make):
{code}
* Lucene has introduced the `ByteBuffersDirectoryFactory` as a replacement for
the `RAMDirectoryFactory`, which will be removed in Solr 9.
+
While most users are still encouraged to use the `NRTCachingDirectoryFactory`,
which allows Lucene to select the best directory factory to use, if you have
explicitly configured Solr to use the `RAMDirectoryFactory`, you are encouraged
to switch to the new implementation as soon as possible before Solr 9 is
released.
+
For more information about the new directory factory, see the Jira issue
https://issues.apache.org/jira/browse/LUCENE-8438[LUCENE-8438].
+
For more information about the directory factory configuration in Solr, see the
section
<<datadir-and-directoryfactory-in-solrconfig.adoc#datadir-and-directoryfactory-in-solrconfig,DataDir
and DirectoryFactory in SolrConfig>>.
{code}
> Ref Guide: Upgrade Notes for 7.6
> --------------------------------
>
> Key: SOLR-12927
> URL: https://issues.apache.org/jira/browse/SOLR-12927
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: documentation
> Reporter: Cassandra Targett
> Assignee: Cassandra Targett
> Priority: Blocker
> Fix For: 7.6
>
> Attachments: SOLR-12927.patch
>
>
> Add Upgrade Notes from CHANGES and any other relevant changes worth
> mentioning.
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