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https://issues.apache.org/jira/browse/SOLR-17050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17792876#comment-17792876
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ASF subversion and git services commented on SOLR-17050:
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Commit 2ff81a7cb6b9344baf5f4b050b8a72b2777dba19 in solr's branch
refs/heads/branch_9x from Florin Babes
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=2ff81a7cb6b ]
SOLR-17050: Use compact JSON for Learning to Rank (LTR) feature and model
storage. (#2030)
Co-authored-by: Florin Babes <florin.ba...@emag.ro>
Co-authored-by: Christine Poerschke <cpoersc...@apache.org>
(cherry picked from commit ce9930338d2d576a3f83fc17754366c0bc0ca845)
> Store the models compacted so we can store bigger models on zk
> --------------------------------------------------------------
>
> Key: SOLR-17050
> URL: https://issues.apache.org/jira/browse/SOLR-17050
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LTR, ltr
> Affects Versions: main (10.0), 9.4
> Reporter: Florin Babes
> Priority: Major
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> We reached the limit of zk for storing LTR models. I want to avoid the
> usage of DefaultWrapperModel for as long as possible because we have
> deployed in an container orchestrator and this implementation can be
> really risky if you can not guarantee the presence of the model on
> disk all the time.
> So I want to use the managed model feature to upload some bigger
> models but zk is dying with OOM. What we noticed is that solr stores
> the models in a json indented file. By saving the models in compacted
> json our models will be 60% smaller.
> user mailing list thread:
> [https://lists.apache.org/thread/5s5dq4j4bd74sfym7frwoqdokoh64s5l]
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