[
https://issues.apache.org/jira/browse/LUCENE-8671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16797030#comment-16797030
]
ASF subversion and git services commented on LUCENE-8671:
---------------------------------------------------------
Commit c483f6bc5991ed805cbbd93690f5600cba7106a9 in lucene-solr's branch
refs/heads/branch_8x from Simon Willnauer
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=c483f6b ]
LUCENE-8671: Load FST off-heap if reader is not opened from an index writer
(#610)
Today we never load FSTs of ID-like fields off-heap since we need
very fast access for updates. Yet, a reader that is not loaded from
an IndexWriter can also leave the FST on disk. This change adds
this information to SegmentReadState to allow the postings format
to make this decision without configuration.
> Add setting for moving FST offheap/onheap
> -----------------------------------------
>
> Key: LUCENE-8671
> URL: https://issues.apache.org/jira/browse/LUCENE-8671
> Project: Lucene - Core
> Issue Type: New Feature
> Components: core/FSTs, core/store
> Reporter: Ankit Jain
> Priority: Minor
> Attachments: offheap_generic_settings.patch, offheap_settings.patch
>
> Original Estimate: 24h
> Time Spent: 2h 40m
> Remaining Estimate: 21h 20m
>
> While LUCENE-8635, adds support for loading FST offheap using mmap, users do
> not have the flexibility to specify fields for which FST needs to be
> offheap. This allows users to tune heap usage as per their workload.
> Ideal way will be to add an attribute to FieldInfo, where we have
> put/getAttribute. Then FieldReader can inspect the FieldInfo and pass the
> appropriate On/OffHeapStore when creating its FST. It can support special
> keywords like ALL/NONE.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
