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Posted to issues@solr.apache.org by "Shawn Heisey (Jira)" <ji...@apache.org> on 2022/11/14 17:32:00 UTC

[jira] [Commented] (SOLR-16548) CaffeineCache seems to be not working in 9.0 and later

    [ https://issues.apache.org/jira/browse/SOLR-16548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17633960#comment-17633960 ] 

Shawn Heisey commented on SOLR-16548:
-------------------------------------

I encountered this issue while working on SOLR-15859.

> CaffeineCache seems to be not working in 9.0 and later
> ------------------------------------------------------
>
>                 Key: SOLR-16548
>                 URL: https://issues.apache.org/jira/browse/SOLR-16548
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: 9.0, 9.1, 9.2
>            Reporter: Shawn Heisey
>            Priority: Major
>
> I am seeing evidence that CaffeineCache is not working correctly.
>  To reproduce:
>  * download 9.0.0, extract it, and cd into the extracted directory.  Do this on a system that is not already running any software (including Solr) that listens on ports 8983 or 7574.
>  * Start the cloud example with this command:
>  * SOLR_JETTY_HOST=0.0.0.0 bin/solr -e cloud -noprompt
>  * Visit this URL in your browser, substituting "hostname" with a name or IP address that is correct for your environment:
>  * 
>  ** [http://hostname:8983/solr/#/gettingstarted_shard1_replica_n6/plugins?type=cache&entry=filterCache]
>  * In another tab, visit this URL, substituting hostname again:
> [http://hostname:8983/solr/gettingstarted_shard1_replica_n6/select?q=*:*&fq=id:test]
>  * On that tab, hold shift and press the reload button. Do this several times.
>  * Go back to the first tab and reload the page.
> You will see that size, lookups, and inserts are 1, but hits is zero. Both hits and lookups should be increasing with every shift-reload on the other tab.
> Is this a valid test?  I think it should be.
> I am running with OpenJDK 11.  For 9.1.0 and 9.2.0-SNAPSHOT, I am building with OpenJDK 11 as well.  This should mean that the caffeine-related mitigation for crashing on Java 17 is not enabled.
> On branch_9x, I have tried downgrading Caffeine from 3.1.1 to 3.0.5 and also to 2.9.2 and it did not change the behavior, so I don't think the problem is in Caffeine.



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